Trục PTO cho máy nghiền cỏ Fecon Bull Hog BH300, BH350

Trục PTO đáng tin cậy dành cho các dòng máy nghiền cỏ Fecon Bull Hog.

PTO Shaft for Fecon Bull Hog Mulcher Model: BH300, BH350

The CMN Transmission PTO Shaft for Fecon Bull Hog Mulcher BH300 and BH350 is an engineered-grade, field-proven tractor PTO drive shaft solution built to match and exceed the performance of the original Walterscheid 2500 Series driveline. Rated for 1000 RPM PTO operation on the BH300 and 1000-1325 RPM on the BH350, with a heavy-duty 1 3/4″ PTO shaft diameter, Z20 spline profile, and a working PTO shaft length of approximately 700 mm, this mulcher PTO shaft is purpose-built to transfer up to 450 HP continuously from your tractor to the Bull Hog rotor gearbox. Every unit integrates a factory-calibrated FK96 over-running friction clutch set to 1800 Nm, acting as a reliable slip clutch to protect both the tractor drivetrain and the mulcher gearbox from shock-load damage during sudden rotor engagement or obstacle strikes.

Designed for real-world forestry and land-clearing demands, this PTO driveline shaft for mulcher applications features precision-machined PTO shaft yokes, heat-treated PTO shaft universal joints, a full-coverage PTO shaft guard for operator safety, and durable interlocking PTO shaft tubing that accommodates working length variation. As a trusted replacement of Walterscheid 2500 Series PTO shaft, it is produced under ISO9001-certified quality management and CE-compliant safety standards. Compatible with agriculture tractors from 200-450 HP and Fecon's FTX440 purpose-built track carrier, this agricultural PTO shaft is the go-to solution for contractors, farm managers, and forestry professionals operating Fecon BH300 and BH350 mulchers across land clearing, right-of-way maintenance, pasture reclamation, and forestry management projects worldwide.

Thiết bị nguyên bản là trục PTO dòng Walterscheid 2500. Chúng tôi có thể sản xuất các trục thay thế chất lượng cao cho trục PTO dòng Walterscheid 2500.

Thông số kỹ thuật

Kích thước trục PTO theo từng mẫu xe

Thông số kỹ thuật máy nghiền rơm Fecon Bull Hog PTO

Bộ ly hợp ma sát quá tải FK96/4

Đặc điểm của trục PTO cho máy nghiền cỏ Fecon Bull Hog

1. Direct Replacement for Walterscheid 2500 Series
This PTO shaft for Fecon Bull Hog mulcher is manufactured as a precision direct replacement for the original Walterscheid 2500 Series driveline. All critical PTO shaft dimensions, including the 1 3/4″ diameter, Z20 spline, and ~700 mm extended length, are matched to OEM specifications. No shimming, adapters, or modification required - slide-in installation with immediate field readiness ensures minimal downtime on demanding land-clearing job sites.

2. FK96 Over-Running Friction Slip Clutch
Integrated FK96 over-running friction clutch provides critical overload protection for both the tractor drivetrain and the mulcher gearbox. Factory-calibrated to 1800 Nm on the 1.750-6 spline bore, this slip clutch PTO shaft assembly slips instantly under shock load and re-engages smoothly, preventing costly driveline damage when the rotor strikes hidden rocks, stumps, or embedded debris during heavy mulching operations.

3. Precision Heat-Treated PTO Shaft Universal Joints
Each PTO shaft u joint is manufactured from alloy steel with precision heat treatment and surface hardening to achieve the hardness profile required for continuous 1000 RPM torque transmission in the 200-450 HP range. The journal cross bearings are sealed and lubricated for extended service life, reducing maintenance intervals and ensuring vibration-free power transfer even at maximum operational angles encountered during 3-point hitch float in rough terrain conditions.

4. Full-Coverage Safety PTO Shaft Guard
A robust, full-length PTO shaft cover and guard assembly encases the entire rotating driveline between tractor and implement. The guard is constructed from high-impact polyethylene and secured with anchor chains to prevent rotation with the shaft. This CE-compliant safety feature protects operators from entanglement hazards and shields the PTO driveline shaft from mud, brush debris, and vegetation that could compromise balance or bearing integrity during extended mulching operations.

5. Heavy-Duty PTO Shaft Tubing with Telescoping Design
The PTO shaft tube features a profiled telescoping design - typically a triangle or lemon-cross profile on heavy-duty agricultural applications - allowing the driveline to accommodate the working length variation created by 3-point hitch raise/lower cycles without binding or disengaging. The outer and inner PTO shaft tubing is manufactured from drawn seamless steel tube, precision-profiled to tight tolerances, and surface-treated to resist corrosion across all operating environments from wet lowlands to arid rangeland.

6. ISO9001 and CE Certified Manufacturing
Every tractor PTO shaft produced by CMN Transmission passes through a rigorous multi-stage quality control protocol under our ISO9001-certified manufacturing system. Dimensional inspection, torque verification, dynamic balance testing, and surface hardness checks are conducted before dispatch. CE certification confirms compliance with EU Machinery Directive safety requirements. Factory-direct supply from our production base - with over 150,000 standard stock items - means competitive PTO shaft pricing without sacrificing quality or lead time.

Working Principle of Mulcher PTO Shaft

The working principle of a trục truyền động PTO for mulcher applications begins at the tractor's rear PTO stub. The tractor's engine drives a gearbox-reduction output shaft that rotates at either 540 RPM (for lighter-duty implements) or 1000 RPM for high-horsepower PTO applications like the Fecon BH300 and BH350. The BH350's advanced gearbox allows PTO speeds up to 1325 RPM for elevated rotor tip speed. When the operator engages the PTO clutch from inside the cab, the tractor's PTO stub shaft begins rotating, and mechanical power is transferred through the splined yoke of the PTO shaft tractor connection point into the body of the driveline.

Once engaged, torque flows from the tractor stub through the first PTO shaft yoke and into the universal joint cross-and-bearing assembly. The PTO shaft universal joint is designed to transmit rotational torque through an angular offset, allowing the driveline to operate even when the mulcher's 3-point hitch lowers or raises the attachment relative to the tractor, or when traversing uneven ground where pitch angle changes. From the first universal joint, torque enters the inner profile tube, which slides within the outer profile of the PTO shaft tube assembly. This telescoping mechanism - engineered to allow axial extension and compression of approximately 150-200 mm - is critical for accommodating the positional change of the Bull Hog attachment as the tractor's hydraulic top link adjusts or terrain undulations vary the hitch geometry. Heavy grease packing in the telescoping interface prevents fretting corrosion and keeps sliding resistance low even under full torque load.

The FK96 friction clutch integrated into this PTO shaft with slip clutch design is perhaps its most critical protective component. During normal mulching operation, the clutch pack is held in engagement by a calibrated spring pack set to the rated 1800 Nm slip torque. Torque flows freely from the tractor side of the clutch through the friction discs and drive plates to the implement-side yoke. However, the instant a shock load event occurs - such as the rotor striking a buried rock, a large hardwood stump, or a sudden jam in the material flow - the instantaneous torque spike exceeds 1800 Nm. At this threshold, the spring pack compresses, allowing the friction discs to slip relative to the drive plates. Energy is dissipated as heat through the friction interface rather than being transmitted as a destructive shock spike into either the tractor's PTO gearbox and transmission or the mulcher's main gearbox. The over-running feature also allows the high-inertia rotor to continue spinning briefly after the tractor PTO is disengaged, preventing back-torque from being transmitted to the tractor driveline as rotor momentum decays. This is especially important on the heavy BH300 (7,850 lbs) and BH350 (8,200 lbs) where rotor inertia is substantial.

After passing through the clutch assembly and the second telescoping tube section, torque arrives at the implement-side universal joint and yoke. The implement yoke connects directly to the input shaft of the Fecon Bull Hog's main right-angle gearbox, which multiplies rotor shaft speed from the 1000 RPM PTO input to the high-RPM needed for rotor tip speed. The gearbox output drives the fixed-tool HDT step-rotor carrying 48 tungsten carbide cutting tools arranged in a staggered, stepped pattern. These tools impact vegetation at high velocity, shredding material into fine mulch that is returned directly to the soil. The PTO driveline shaft must maintain smooth, vibration-free operation throughout, as any imbalance or misalignment at this HP level would rapidly fatigue the universal joint bearings and shorten service life. CMN Transmission's precision-balanced custom PTO shaft production process ensures this standard is met on every unit shipped.

Các kịch bản ứng dụng

1. Forestry Management
Managing understory vegetation and tree density in wooded areas to promote healthier forest growth, improve accessibility, and reduce fuel loads for wildfire prevention. The BH300/BH350, driven by a reliable tractor PTO drive shaft, clears competing brush and small trees while minimizing soil disturbance and supporting long-term woodland health and biodiversity balance.

2. Land Clearing
The primary use case for the Fecon BH300/BH350 with this mulcher PTO shaft. The Bull Hog efficiently processes trees, dense brush, underbrush, and stumps down to ground level, mulching vegetation in place to prepare sites for construction, agriculture, or land development projects while returning organic material to the soil - eliminating the need for separate debris disposal operations.

3. Bảo trì hành lang đường bộ
Clearing vegetation along power lines, oil and gas pipelines, roadsides, fence rows, crop perimeters, and utility corridors to maintain safe access, operational integrity, and infrastructure protection. The PTO driveline shaft for mulcher delivers the sustained high-horsepower performance needed to tackle heavy regrowth across long linear corridors efficiently.

4. Phục hồi đồng cỏ
Reclaiming overgrown pastures and grazing lands by mulching thick brush, small trees, and invasive growth with the full force of a 200-450 HP 1000 rpm PTO shaft setup. The Bull Hog enhances forage quality and land usability for livestock while clearing fence rows and improving overall agricultural productivity. Mulched organic matter improves soil structure over subsequent seasons.

5. Storm Damage Cleanup
Rapidly mulching fallen trees, large limbs, and storm debris to restore access, safety, and site conditions after severe weather events. The heavy duty PTO shaft and FK96 slip clutch combination is ideal for the unpredictable overload spikes common in storm debris processing, reducing hazards and enabling quick recovery in residential, commercial, or forested areas with minimal equipment risk.

6. Invasive Species Removal
Controlling and mulching invasive plants, woody species, and dense undergrowth to restore native ecosystems, suppress regrowth, and support habitat restoration or biodiversity efforts in sensitive environments such as wetlands or conservation zones. The agricultural PTO shaft system's precision torque management ensures controlled operation even in areas requiring careful environmental stewardship.

Các bước cài đặt

1. Pre-Installation Safety Check and PTO Shaft Length Verification
Before beginning installation, park the tractor on level ground, engage the parking brake, shut down the engine, and remove the ignition key. Confirm the replacement PTO shaft dimensions match your specific tractor PTO stub diameter (1 3/4″ / 1.750-6 spline for BH300/BH350). Measure the distance from the tractor PTO stub to the mulcher input shaft with the hitch in working position to confirm the ~700 mm PTO shaft length is appropriate. Telescoping range should be verified to ensure sufficient stroke for full hitch raise and lower without bottoming out or pulling apart.

2. Grease All Telescoping and Universal Joint Interfaces
Before installation, thoroughly grease the inner profile tube interface and all PTO shaft u joint grease nipples using an NLGI-2 lithium-complex grease. The telescoping profile of the PTO shaft tube must be greased along its full sliding length to prevent seizing under torque load. Each universal joint cross typically has a grease nipple that must be pumped until fresh grease appears at the bearing seal. Adequate lubrication at this stage is one of the most impactful factors for service life longevity on a tractor PTO shafts installation.

3. Mount the Tractor-Side Yoke onto the PTO Stub Shaft
Align the PTO shaft yoke on the tractor side with the PTO stub shaft, matching the Z20 spline engagement. Slide the yoke fully onto the stub until the quick-lock collar clicks into the groove on the PTO stub, or tighten the pinch bolt to the manufacturer's specified torque if a bolt-type collar is used. Pull the yoke rearward firmly to confirm positive engagement. Confirm that the lock pin or collar is fully seated - a loose tractor-side PTO shaft adapter connection is a leading cause of driveline vibration and premature bearing failure.

4. Connect the Implement-Side Yoke to the Mulcher Input Shaft
With the BH300 or BH350 attached to the tractor's 3-point hitch and the hydraulic top link connected, lower the hitch to working height. Slide the implement-side yoke of the PTO drive shaft for mulcher onto the Bull Hog's main gearbox input stub. Engage the quick-lock or tighten the pinch bolt. Confirm phasing - on standard cardan shaft arrangements, both yokes should be in the same rotational plane (0 degrees phase offset) to minimize velocity variation through the double universal joint system and prevent cyclic vibration at speed.

5. Secure the PTO Shaft Guard with Anchor Chains
Once both yoke connections are confirmed, attach the PTO shaft guard anchor chains to fixed non-rotating points - one chain near the tractor hitch frame and one chain to a bracket on the Bull Hog body. The chains must have enough slack to allow articulation through the full hitch travel range but must prevent the guard from rotating with the shaft. Confirm the guard is intact, with no cracks, missing sections, or open seams before starting the tractor. CE and OSHA safety compliance requires an undamaged guard for every operational cycle.

6. Run-In Test and Slip Clutch Verification
Start the tractor and engage the PTO at low idle (below 500 RPM) for a 2-3 minute break-in cycle. Listen for any unusual vibration, clicking, or knocking that would indicate misalignment, phasing error, or a loose connection. Gradually increase PTO speed to 1000 RPM while monitoring for smooth, vibration-free operation. Verify that the slip clutch on this PTO shaft with slip clutch is properly set by conducting a controlled overload test according to the FK96 clutch setup procedure. Recheck all fasteners and anchor chain attachment points after the first 8-10 hours of operation.

Mẹo bảo dưỡng trục truyền động PTO

1. Daily Inspection Before Each Use
Before each work session, visually inspect the entire PTO shaft guard for cracks, missing sections, or damage. Verify that both anchor chains are secured and have appropriate slack. Check that the yoke quick-lock collars are fully engaged on both tractor stub and mulcher input shaft. Inspect visible portions of the PTO shaft tubing for dents, bends, or soil accumulation that could create imbalance. Address any issues found before engaging the PTO - operating with a damaged guard or improperly secured yoke creates serious safety hazards.

2. Universal Joint and Telescoping Tube Greasing (Every 8 Hours)
The PTO shaft u joint cross bearings must be greased every 8 operating hours or once per working day. Use an NLGI-2 lithium-complex grease through each nipple until fresh grease purges at the seal. The telescoping profile tube interface must also be greased every 8 hours, or more frequently in wet or abrasive conditions. Extend the telescoping tube to mid-range, grease the exposed inner profile surface, then return to working length. This is the single most impactful maintenance task for maximizing agricultural PTO shaft service life under heavy mulching loads.

3. Slip Clutch Torque Setting Verification (Seasonal)
At the start of each operating season and after any extended storage period, verify the FK96 slip clutch is still set to its rated 1800 Nm slip torque. Clutch spring sets can fatigue over time, causing slip threshold to drift lower - leading to nuisance slipping during normal operation - or higher, reducing overload protection effectiveness. Use a calibrated torque wrench setup following the FK96 adjustment procedure. If the clutch has experienced multiple severe slip events in a season, inspect the friction discs and drive plates for wear and replace if beyond the service limit.

4. Universal Joint Wear Inspection (Every 50 Hours)
Every 50 operating hours, check the PTO shaft universal joint crosses for radial play by firmly gripping each yoke and testing for movement perpendicular to the axis of rotation. Any detectable radial lash indicates worn needle bearings that should be replaced promptly. Operating a worn universal joint at 1000 RPM under 200-450 HP load causes rapid heat generation and accelerated failure. Replacing journal crosses proactively as part of scheduled PTO shaft parts maintenance is far less costly than a field failure during an active land-clearing project.

5. Chuẩn bị bảo quản cuối mùa
At the end of the operating season, thoroughly clean the entire PTO drive shaft of all accumulated soil, plant material, and moisture. Grease all nipples to full capacity to displace any moisture that may have entered bearing cavities. Extend the telescoping tube and apply a light coat of anti-corrosion grease to the exposed profile surfaces before collapsing to transport length. Store the driveline in a dry, sheltered location. Inspect the PTO shaft cover guard for UV degradation or impact damage and replace sections as needed before the next season's use.

6. Guard and Safety Hardware Replacement
The PTO shaft guard is a consumable safety item and must be replaced whenever cracked, broken, or missing sections are identified. Operating without a complete, functional guard is illegal in most jurisdictions and voids equipment insurance coverage. CMN Transmission maintains a stock of replacement guard sections, anchor chains, and yoke safety collars. Contact our technical team with your PTO shaft series and dimensions to source the correct replacement guard components, ensuring your operation remains compliant and safe at all times.

Khắc phục các sự cố thường gặp

1. Rung động quá mức trong quá trình vận hành PTO
Vibration is most commonly caused by yoke misalignment (improper phasing), worn or seized PTO shaft universal joint needle bearings, a bent or dented PTO shaft tube section, or accumulated debris packed around the guard tube creating imbalance. Check yoke phase alignment first - both yokes must be in the same plane. Rotate the shaft slowly by hand and feel for roughness or binding at the universal joint crosses indicating bearing failure. Remove all mud and vegetation from around the guard and tube exterior. If vibration persists after addressing these items, the shaft may require professional balance inspection.

2. Slip Clutch Slipping Too Frequently Under Normal Load
If the FK96 friction clutch on the slip clutch PTO shaft is slipping repeatedly during normal mulching loads that the machine should handle without issue, the clutch spring pack has likely fatigued or a friction disc has glazed from previous overload events. Confirm the clutch setting ring is correctly positioned for 1800 Nm on the 2500 Series housing. If the setting is correct but slipping continues, disassemble the clutch assembly and inspect friction discs for glazing, hardening, or wear beyond the service limit. Glazed discs can sometimes be restored with fine abrasive paper; severely worn components require replacement from the FK96 parts list.

3. Telescoping Tube Binding or Difficult to Extend / Collapse
Binding in the PTO shaft tubing telescoping interface is caused by inadequate lubrication, rust formation on the inner profile surface, or physical deformation of the tube from a side impact. Disconnect the shaft from both ends, extend fully, and inspect the inner profile surface for rust, galling, or burrs. Clean thoroughly with a wire brush, apply penetrating lubricant, and work the telescoping sections back and forth repeatedly to free the interface. Apply a generous coat of high-EP grease before reassembly. If the profile is deformed from an impact, the affected tube section must be replaced - operating a binding driveline under load causes rapid seal failure and profile galling.

4. Yoke Not Locking Securely on PTO Stub
If the quick-lock collar on the tractor-side PTO shaft yoke fails to engage or release from the PTO stub shaft, the lock pin ball detent may be worn, the groove on the PTO stub may be damaged, or debris may be packed in the collar mechanism. Clean the collar internals and PTO stub groove thoroughly. Inspect the ball detent spring for fatigue. If the lock fails to seat positively under a pull test after cleaning, replace the yoke collar assembly immediately. Never operate a tractor PTO shaft with a yoke that is not positively locked - catastrophic separation under load at 1000 RPM is an extremely dangerous event.

5. Overheating of Universal Joints or Clutch Housing
Excessive heat from universal joint areas indicates seized needle bearings operating dry due to missed greasing intervals, or operation at joint angles consistently beyond the rated maximum. Heat from the clutch housing area typically indicates sustained slip - either from a mis-set slip torque or from operating consistently at or above the 450 HP maximum rating. Stop operation immediately if overheating is detected. Allow components to cool, check grease levels, and inspect the operating angle. For the BH300/BH350, ensure the 3-point hitch geometry keeps the PTO driveline shaft operating angle below 15 degrees during normal working travel.

Trục PTO và hộp số máy nghiền rác

The mulcher PTO shaft is the mechanical backbone of any tractor-driven mulching system. It is a heavy-duty, articulated PTO driveline shaft connecting the tractor's rear PTO output to the mulcher's gearbox input, transmitting engine-generated torque across a variable-angle, variable-length connection. For high-horsepower mulchers like the Fecon BH300 and BH350 - which operate at 200-450 HP and weigh up to 8,200 lbs - the PTO drive shaft must be engineered for extreme load cycles, shock events, and continuous 1000 RPM operation. This means precision-machined yokes, high-strength alloy steel universal joint crosses, heavy-wall PTO shaft tube construction, and an integrated over-running friction clutch that protects both ends of the driveline from destructive torque spikes.

A quality tractor PTO shaft for mulcher applications must also accommodate the significant positional variation that occurs as the 3-point hitch float follows terrain - the telescoping profile tube handles axial length change while the double universal joint system handles angular offset. The FK96 over-running clutch also permits the high-inertia rotor to coast freely after PTO disengagement, preventing damaging back-torque from being transmitted through the driveline to the tractor gearbox. Every element of the PTO shaft for Fecon Bull Hog mulcher is designed with this demanding operational profile in mind.

The mulcher gearbox - sometimes called the chipper gearbox or forestry mulcher gearbox - is the mechanical interface between the PTO driveline and the cutting rotor. In the Fecon BH300 and BH350, this is a heavy-duty right-angle gearbox that accepts the 1000 RPM input from the PTO shaft and converts it to the high rotor speed required for efficient vegetation shredding. On higher-horsepower models including the BH300 series, Fecon's patented synchronized pivoting gearbox system is incorporated to maintain constant rotor speed even as the attachment pitch angle varies during terrain following.

The PTO driveline shaft for mulcher and the mulcher gearbox are inseparable partners in the power transmission chain. Without a properly functioning, correctly specified PTO shaft with slip clutch, the gearbox is exposed to uncontrolled shock loads that can fracture input shaft bearings, crack housing castings, or strip gear teeth. Without a healthy mulcher gearbox, the finest PTO drive shafts cannot deliver useful work. CMN Transmission supplies both mulcher PTO shafts and compatible mulcher gearboxes, offering operators a complete drivetrain replacement solution from a single, ISO9001-certified source - eliminating the compatibility uncertainty that can arise when sourcing components from multiple vendors. Contact our technical team to confirm the correct gearbox and PTO shaft combination for your specific Fecon Bull Hog model and tractor specification.

Tại sao nên chọn trục PTO nông nghiệp của CMN Transmission?

CMN Transmission (Hàn Quốc) là một trong những nhà cung cấp hàng đầu thế giới về các giải pháp truyền động năng lượng cho công nghiệp và nông nghiệp. Dòng sản phẩm của chúng tôi bao gồm trục truyền động PTO, hộp số nông nghiệp, xi lanh thủy lực, hộp số hành tinh, hộp số trục vít, bánh răng côn, đĩa xích, xích, thanh răng, ròng rọc, bạc côn, khớp nối, và nhiều sản phẩm khác. Có trụ sở chính tại Ansan-si, Gyeonggi-do, Hàn Quốc, với một cơ sở sản xuất và hơn 10 nhà máy hợp tác liên doanh, chúng tôi duy trì kho hàng với hơn 150.000 sản phẩm tiêu chuẩn và phục vụ khách hàng tại hơn 53 quốc gia trên khắp Bắc Mỹ, Châu Âu, Nam Mỹ, Trung Đông, Châu Phi, Đông Nam Á và Châu Đại Dương.

What sets CMN Transmission apart in the agricultural PTO shaft market is our commitment to factory-direct pricing without sacrificing quality. As an integrated manufacturing and trading company, we eliminate the multiple dealer markups that inflate the cost of OEM replacement parts. Every tractor PTO shaft we produce is manufactured using advanced CAD design, precision CNC machining, modern heat treatment processes, and rigorous quality testing. Our products carry both ISO9001 and CE certifications, ensuring compliance with international safety and performance standards for PTO driveline shaft applications worldwide.

Beyond product quality, we offer a level of customer support that large OEM brands often cannot match. Our technical team provides pre-sale consultation to confirm spline configurations, PTO shaft dimensions, and clutch specifications for your exact tractor and implement combination. We offer custom PTO shaft manufacturing for non-standard applications and provide detailed dimensional drawings upon request. After the sale, our one-stop after-sales service ensures that replacement PTO shaft parts, technical guidance, and warranty support are always accessible.

When you choose CMN Transmission, you are choosing a partner committed to keeping your equipment running efficiently, reliably, and safely - season after season. Whether you need a standard PTO shaft for Fecon Bull Hog mulcher BH300/BH350, a heavy duty PTO shaft for another high-HP mulcher, or a fully customized PTO driveline shaft for OEM supply, our team is ready to deliver.

Câu hỏi thường gặp

Q: Is this PTO shaft a direct replacement for the Walterscheid 2500 Series on the Fecon BH300 and BH350?
A: Yes, this is engineered as a precision replacement of Walterscheid 2500 Series PTO shaft for both the BH300 and BH350. All critical dimensions including the 1 3/4″ shaft diameter, Z20 spline specification, approximately 700 mm extended working length, and FK96 clutch assembly with 1.750-6 spline bore at 1800 Nm slip torque are matched to original specification. You can install directly onto the existing tractor PTO stub and BH300/BH350 input shaft without any adapters, shims, or machining work. Contact our technical team with your serial number if you need dimensional confirmation before ordering.

Q: What is the exact PTO shaft length for the Fecon BH300 and BH350, and can I order a custom length?
A: The standard PTO shaft length for both the BH300 and BH350 is approximately 700 mm in extended working position. However, PTO shaft dimensions can vary slightly depending on specific tractor model, hitch configuration, and any optional hydraulic top link setup. If you require a custom PTO shaft length outside the standard 700 mm, CMN Transmission offers full customization services - simply provide the required compressed and extended lengths, shaft diameter, and spline specifications, and our engineering team will produce a made-to-order PTO driveline shaft to your exact requirements.

Q: What is the difference between a 540 PTO shaft and a 1000 PTO shaft, and which does the BH300/BH350 require?
A: A 540 PTO shaft is designed for implements that draw less horsepower (typically under 100 HP) and uses a 1 3/8″ (6-spline) shaft that rotates at 540 RPM. A 1000 PTO shaft is designed for high-horsepower implements and uses a 1 3/4″ (20-spline) shaft that rotates at 1000 RPM - transmitting significantly more power at the same tractor engine speed. The Fecon BH300 and BH350 are high-horsepower mulchers (200-450 HP) and exclusively require a 1000 rpm PTO shaft with 1 3/4″ Z20 spline. Using an incorrect PTO shaft adapter or attempting to run a 540 RPM shaft on these mulchers would be dangerous and would immediately fail under load.

Q: How often should I replace PTO shaft universal joints on the BH300/BH350 driveline?
A: Universal joint service life depends heavily on maintenance frequency, operating angles, and load intensity. Under ideal conditions with regular greasing (every 8 hours), PTO shaft u joint crosses on a 200-450 HP mulching application should last 800-1500 operating hours. However, operations involving consistent rocky terrain, high shock loads, or any missed greasing intervals will dramatically reduce this. Check for radial play in the crosses every 50 hours. As a proactive maintenance strategy, replacing universal joint crosses at 600-800 hour intervals as preventive maintenance is far less costly than an unexpected field failure mid-project. CMN Transmission stocks individual PTO shaft parts for cross replacement.

Q: Can the FK96 slip clutch torque setting be adjusted, and what torque does it slip at for BH300/BH350?
A: Yes, the FK96 over-running friction clutch integrated into this PTO shaft with slip clutch is adjustable via the setting ring (component #15 in the parts list). For the 2500 Series with 1.750-6 spline bore as used on the BH300 and BH350, the factory setting is 1800 Nm. This is the correct slip torque for protecting the Fecon mulcher gearbox and tractor drivetrain from shock overloads in the 200-450 HP operating range. The setting should be verified seasonally and after any significant overload event. Adjusting above or below the 1800 Nm specification without understanding the tractor and implement drivetrain's rated maximum torque is not recommended.

Q: Does CMN Transmission offer OEM and custom PTO shaft manufacturing for other mulcher models?
A: Yes. CMN Transmission operates as an integrated manufacturing and trading company with full custom PTO shaft production capability. Beyond the standard BH300/BH350 configuration, we can manufacture tractor PTO drive shaft assemblies to any specified PTO shaft sizes, spline profile, clutch type, and PTO shaft length for other Fecon Bull Hog models, as well as Mulchmaster, FAE, Seppi, Prinoth, and other forestry mulcher brands. OEM supply for equipment manufacturers is also available with private-label packaging and custom documentation. Submit your technical requirements to our sales team including compressed and extended lengths, shaft diameter, spline count, clutch type, and target HP rating.

Q: What tractor horsepower and PTO stub specification do I need to run the Fecon BH300 and BH350?
A: The Fecon BH300 requires an agriculture tractor with 200-450 PTO HP and a 1000 RPM rear PTO stub with 1 3/4″ (Z20) spline. The BH350 requires 250-450 PTO HP with a 1000-1325 RPM PTO capability. The tractor must include an enclosed cab with operator protection, a creeper gear or hydrostatic transmission, and a 3-point Category 3 or 4 hitch with a hydraulic top link. Additionally, BH200, BH300, and BH350 require gearbox cooling when operating above 300 HP. Your tractor PTO shaft and PTO stub must be in good condition with no detectable spline wear before installing this replacement PTO drive shaft.

Q: What causes premature PTO shaft failure on heavy-duty mulchers, and how can it be prevented?
A: The most common causes of premature heavy duty PTO shaft failure on mulching applications are: inadequate lubrication of universal joint needle bearings and the telescoping tube profile; operating at joint angles consistently exceeding 15 degrees; repeated slip clutch overload events that glaze friction discs and reduce protection effectiveness; and physical impact damage to the PTO shaft tube from debris. Preventive measures include strict 8-hour greasing intervals, maintaining proper tractor-to-implement geometry, verifying slip clutch settings seasonally, inspecting for tube damage after any rock or stump impacts, and monitoring PTO shaft guard integrity to ensure debris cannot contact the rotating shaft.

Q: Does this PTO shaft come with a warranty, and what is the returns policy?
A: Yes. CMN Transmission's agricultural PTO shaft products are backed by a product quality warranty covering manufacturing defects in materials and workmanship. Our after-sales service team provides technical support, replacement component sourcing, and warranty claim processing. In the event of a verified manufacturing defect identified within the warranty period, we will supply replacement parts or a replacement unit. Note that warranty coverage does not extend to damage caused by incorrect installation, operation beyond rated HP limits, use without the PTO shaft guard, or failure to maintain the specified lubrication intervals. Contact our after-sales team for full warranty terms applicable to your region.

Q: How do I know if my PTO shaft needs replacement vs. repair with individual PTO shaft parts?
A: Individual PTO shaft parts replacement is cost-effective when damage is limited to specific components: a worn U-joint cross can be replaced without replacing the entire shaft; glazed friction discs in the FK96 clutch can be sourced and swapped individually; a cracked PTO shaft guard tube can be replaced in sections. Full shaft replacement becomes the better choice when the main profile tube is bent or dented (which creates permanent imbalance), when the yoke splines show significant wear that would compromise engagement, when multiple components have failed simultaneously, or when the cumulative cost of individual repairs approaches the cost of a complete replacement. CMN Transmission can advise on the most cost-effective repair-versus-replace decision for your specific situation - contact our technical team with a description of the damage.

Đánh giá của khách hàng

Marcus Hollingsworth, Quản lý trang trại, Hoa Kỳ
"Been running a BH300 on our 420 HP Case Quadtrac for about three seasons now. The original Walterscheid driveline finally wore through the U-joints last fall, and I wasn't about to pay dealer markup for a replacement. Ordered the 2500 Series replacement from CMN Transmission - the 1.750-6 spline bore, 1800Nm clutch setting, ~700mm length. Arrived in about ten days, which I honestly wasn't expecting for an overseas supplier. Fit was dead-on, slid straight onto the BH300 input shaft, no shimming, no adapter games. Put about 220 hours on it clearing hardwood bottomland and the thing hasn't skipped a beat. Build quality feels every bit as solid as the Walterscheid it replaced. Will be back for another when this one wears out."

Darren Mackinnon, Land Clearing Contractor, Australia
"G'day - we run two BH350s on New Holland T9 tractors for large-scale scrub clearing in Queensland. Been sourcing spares from Europe but the lead times and freight cost were killing our job margins. Tried CMN Transmission on a mate's recommendation. Ordered two complete PTO shaft assemblies - the 1000-1325 RPM rated units for the BH350. Quality is genuinely impressive. The slip clutch preset torque was spot-on - verified it ourselves with a torque checker before installation. Guard tubes are solid, no flex or rattle. Delivery was 12 days door to door, which for international freight into regional Queensland is excellent. Already placed a second order. Competitive pricing for the quality level on offer."

Kyle Tremblay, Forestry Operator, Canada
"We use a BH300 on our forestry operation in British Columbia. Our previous PTO shaft lasted four years of hard use before a U-joint seized on us mid-job in fairly remote terrain - not a great day. When we were sourcing a replacement I reached out to CMN's technical team to confirm the correct spline and clutch spec for our exact setup. They responded same day with the exact dimensional drawing, confirmed the 1.75-6 bore and 1800Nm setting, and had the unit shipped the following day. The technical support pre-sale was honestly what closed the deal for me. Shaft arrived in perfect condition, installed in under 45 minutes. Very happy with the product and the team behind it."

Stefan Breitenbacher, Forstunternehmer, Germany
"We operate a BH300 in our forestry business in Bavaria and urgently required a replacement of the Walterscheid 2500 PTO shaft. The CMN shaft was delivered within 14 working days, which was very acceptable given the distance. The product quality is flawless, the yoke fits snugly on the PTO stub shaft, the friction clutch engages cleanly at 1800 Nm, and the guard tube is stable. For our operation, it is a complete equivalent replacement at a significantly lower price compared to the OEM supplier. I have also recommended the product to a colleague in Saxony."

Thierry Morel, Entrepreneur Agricole, France
"We use two BH350s for land clearing work in Normandy. After an on-site incident in which the original cardan shaft was twisted due to an overload, we ordered a replacement from CMN Transmission. Quick response, detailed quote with all cardan parameters (1.75-6 bore, 1800 Nm setting), and delivery in 10 working days. Installation was problem-free with a perfect fit on the BH350. The quality-to-price ratio is far superior to that of our usual supplier. We will continue working with CMN for future orders."

Joao Carlos Figueiredo, Agricultural Entrepreneur, Brazil
"I work with land clearing in Mato Grosso and have been using a BH300 for four years. I needed to replace the cardan shaft after approximately 1,400 hours of heavy work, which is not bad considering the usage. I purchased from CMN Transmission because a local distributor recommended it. The product arrived in 16 working days with reinforced packaging and no damage. The shaft fitted perfectly into the BH300 coupling without any adjustments. The slip clutch has been operating correctly since the first day. The price is very competitive compared to local importers who charge exorbitant amounts. I recommend it to anyone needing a quality cardan shaft without paying a fortune."

Hamish Gallagher, Livestock Farmer, New Zealand
"Running a 350-acre beef and sheep operation in the Waikato - we use a BH300 on a John Deere 8R for pasture reclamation and scrub clearing along our creek systems. Snapped a U-joint last spring during a particularly bad session on some old blackberry and gorse. Local dealer wanted an eye-watering price and a six-week lead time. Found CMN Transmission online, made contact, confirmed the exact spec with their team within a few hours. Received the complete PTO shaft assembly in nine days. Fit was perfect, zero issues. The guard tube quality is noticeably better than some aftermarket parts I've used in the past. Will keep CMN Transmission in mind for future parts needs."

Sipho Ndlovu, Conservation Land Manager, South Africa
"We use a BH350 for invasive bush clearing on conservation land in Limpopo. Getting the right PTO shaft parts here is always a challenge - most suppliers won't ship to South Africa reliably, or when they do the freight cost kills the savings. CMN Transmission was completely transparent about shipping timelines - 18 working days to Polokwane, which is exactly what we received. No damage, correct product. The shaft spec was confirmed in writing before order placement with a detailed dimensional drawing - that kind of professionalism is rare with international suppliers. Product performance has been flawless through 90 hours of heavy clearing. Will definitely purchase again."

Anders Lindqvist, Forestry Contractor, Sweden
"We use a BH300 for clearing work for utility companies in northern Sweden. The clutch housing on the original shaft cracked after a significant overload in a ditch. I found CMN Transmission via Google and contacted them in English. A response came within a few hours with the technical specification confirmed and a quote received. We ordered a complete shaft with the FK96 clutch set to 1800 Nm. Delivery took 13 working days to Sundsvall—acceptable for an international order. The shaft fitted perfectly and the clutch torque appears correct. The price is approximately 40% lower than ordering through the Swedish OEM distributor. Recommended."