Zapfwelle für Jaylor Doppelschnecken-TMR-Mischer 6600, 6650, 6750, 6850

Reliable PTO Shaft for Jaylor Twin Auger TMR Mixer Models

PTO Shaft for Jaylor Twin Auger TMR Mixer Model: 6600, 6650, 6750, 6850

The CMN Transmission PTO shaft for Jaylor twin auger TMR mixers is a precision-engineered tractor PTO shaft designed as a direct-fit replacement for Jaylor 6000 Series twin auger vertical feed mixer models 6600, 6650, 6750, and 6850. Available in CAT4 and CAT6 configurations with 1000 RPM operation, this PTO drive shaft delivers smooth, consistent power transfer from your tractor to the mixer's planetary gearbox, driving the twin auger system that processes and blends Total Mixed Rations (TMR) for dairy herds, beef cattle, sheep, goats, and other livestock. Built as a quality alternative replacement of Bondioli & Pavesi PTO shaft units, every shaft is factory-assembled with hardened alloy steel components, precision-ground PTO shaft tube assemblies, and full PTO shaft guard protection for operator safety.

Whether you operate a 200-head dairy farm mixing silage and grain concentrates daily, or run a large-scale beef feedlot processing multiple bales per batch, this feed mixer PTO shaft ensures reliable torque delivery under sustained heavy loads. The Jaylor 6600, 6650, 6750, and 6850 twin auger mixers require a dependable PTO shaft for TMR feed mixer operation to maintain consistent ration quality and keep feeding schedules on track. CMN Transmission's vertical feed mixer PTO shaft is built to handle the high-torque demands of twin auger mixing, where dense hay bales, wet silage, and mineral supplements are all blended into a uniform, sort-resistant TMR. Backed by ISO9001, CE, and TS16949 certifications, this agricultural PTO shaft ships to operations across six continents with fast turnaround and competitive pricing.

Technische Spezifikationen

Main Shaft: Constant Velocity PTO

SFT Constant Velocity Assemblies

Shear Bolt Yoke

Size 6 Shear Bolt Yoke

Size 8 Shear Bolt Yokes

Check more information about our PTO shear bolt torque limiters.

Features of PTO Drive Shaft for Jaylor Feed Mixer

1. Precision-Machined PTO Shaft Yoke
Every PTO shaft yoke on both the tractor and implement ends is forged from alloy steel and finish-machined to DIN 808 tolerances. Bearing cup bores are held to a tolerance of plus or minus 0.012 mm, which eliminates the radial play that causes premature needle bearing failure in high-vibration environments typical of twin auger feed mixer operations. Each yoke fork is CMM-inspected before assembly to guarantee dimensional accuracy.

2. Integrierter Rutschkupplungsschutz
The built-in PTO shaft with slip clutch mechanism provides critical overload protection for both the tractor drivetrain and mixer gearbox. When the twin augers encounter a sudden overload from a frozen bale or foreign object in the feed, the multi-disc friction slip clutch PTO shaft disengages momentarily to absorb the shock, preventing catastrophic damage to the PTO driveline shaft, gearbox internals, and tractor transmission.

3. Heavy Duty Cross-and-Bearing U-Joints
Each PTO shaft u joint uses a full-complement needle bearing design with case-hardened cross trunnions and high-temperature grease fill. The PTO shaft universal joint assemblies are rated for continuous 1000 RPM operation at operating angles up to 25 degrees, ensuring smooth torque delivery even when the tractor and mixer are not perfectly aligned on uneven farmyard surfaces or during turns at the feed bunk.

4. Cold-Drawn Steel PTO Shaft Tubing
The inner and outer PTO shaft tube assemblies are cold-drawn from high-carbon steel and profiled in a lemon or triangular cross-section to maximize torque transfer while allowing the shaft to telescope freely. This PTO shaft tubing design prevents rotational play between inner and outer sections, a common wear mechanism in lower-cost aftermarket shafts. The precision-ground outer profile ensures smooth sliding with minimal friction heating during telescoping cycles.

5. Full-Length Safety Guard System
A complete PTO shaft guard and PTO shaft cover system encases the entire rotating assembly. The free-spinning plastic guard shields the rotating PTO drive shafts from accidental contact, protecting operators and bystanders. The guard bearing design allows the cover to remain stationary while the shaft spins at full 1000 RPM speed, and it can be removed quickly for maintenance access without special tools.

6. Shear Bolt Option Available
For operations that prefer a sacrificial protection system, this PTO shaft for Jaylor feed mixer is also available with a PTO shaft shear bolt configuration. The shear bolt PTO shaft uses calibrated shear pins that break cleanly at a predetermined torque threshold, providing positive overload protection and allowing quick field replacement. This shear pin PTO shaft option is ideal for operators who want the simplest possible protection mechanism for their feed mixer driveline.

7. Direct-Fit OEM Replacement
This heavy duty PTO shaft is engineered as a direct-fit replacement of Bondioli & Pavesi PTO shaft assemblies originally supplied with Jaylor twin auger TMR mixers. The PTO shaft dimensions, spline profiles, and yoke geometry match original equipment specifications exactly, so no PTO shaft adapter or modification is needed. Simply remove the old shaft and install the CMN replacement to get back to mixing.

8. Customizable Length and Configuration
CMN Transmission offers this as a custom PTO shaft solution, with adjustable PTO shaft length and multiple PTO shaft sizes to match your specific tractor-to-mixer distance. Whether your setup requires a compact 900mm center-to-center shaft or a longer 1500mm assembly, we manufacture each unit to your exact measurements. Multiple spline and clutch combinations are available to ensure perfect compatibility with your equipment.

How the Tractor PTO Shaft for Jaylor TMR Mixer Works

The operating principle of a PTO shaft for Jaylor twin auger TMR mixers begins at the tractor's rear power take-off stub. The tractor engine generates rotational energy, and the PTO output transmits this energy at a standardized 1000 RPM PTO shaft speed of 1,000 revolutions per minute. The female splined hub on the tractor end of the PTO driveline shaft engages with the male spline on the tractor's PTO stub, creating a secure rotational coupling that transfers engine torque directly into the shaft assembly.

Once engaged, the rotational force travels through the first PTO shaft universal joint at the tractor end. This cross-and-bearing assembly allows the shaft to operate at an angle relative to the tractor's PTO output axis, which is necessary because the Jaylor TMR mixer's input shaft is rarely perfectly aligned with the tractor's PTO during operation. The universal joint accommodates angular misalignment of up to 25 degrees while maintaining continuous torque transfer. As the shaft rotates, the torque passes through the outer PTO shaft tube, which is telescopically connected to the inner tube via a profiled lemon or triangular cross-section.

This telescoping mechanism is critical for vertical feed mixer PTO shaft applications because the distance between the tractor and the TMR mixer changes constantly as the operator maneuvers around the feed storage area, backs up to the bunk, or turns corners during the feeding route. The profiled tubes slide freely in and out while maintaining a positive rotational lock, ensuring that 100% of the torque is transmitted regardless of shaft extension length. Unlike round profile tubes used in some economy drivelines, the multi-lobe geometry eliminates rotational backlash that would create vibration and accelerated wear.

At the implement end, the rotational energy passes through the second PTO shaft u joint and into the mixer's input shaft. Before reaching the gearbox, the torque passes through the overload protection device, either a slip clutch PTO shaft mechanism or a shear bolt PTO shaft system. The slip clutch uses spring-loaded friction discs that allow controlled slippage when torque exceeds the preset threshold. This protects the mixer's planetary gearbox, auger bearings, and the tractor's own PTO drivetrain from damage caused by sudden overloads, such as a frozen bale core or a piece of wire baling twine wrapping around an auger flight.

The Jaylor mixer's planetary gearbox receives the 1000 RPM input and reduces it to the appropriate auger speed, typically between 20 and 40 RPM depending on the model and mixing stage. The twin augers rotate in opposite directions, pulling feed material downward at the center of the tub and pushing it upward along the outer walls. This continuous circulation pattern is what produces the uniform, sort-resistant TMR that Jaylor mixers are known for. Throughout this entire process, the PTO drive shaft for feed mixer operation must deliver consistent, vibration-free torque to maintain smooth auger rotation and prevent the pulsating loads that can damage gearbox seals and bearings over time.

Applications of Feed Mixer PTO Shaft

1. Dairy Farms
Dairy operations depend on consistent TMR quality to maintain milk production, butterfat percentages, and overall herd health. This PTO shaft for TMR feed mixer powers Jaylor twin auger mixers through multiple daily feeding cycles, blending silage, haylage, grain concentrates, minerals, and protein supplements into a precisely balanced ration. The 1000 RPM tractor PTO drive shaft ensures the twin augers process ingredients thoroughly, preventing sorting and ensuring every cow receives the same nutritional content at the feed bunk.

2. Beef Cattle Operations
Feedlots and cow-calf operations use this feed mixer PTO shaft to drive Jaylor TMR mixers that process large round bales, distillers grains, corn silage, and supplement pellets into uniform finishing or backgrounding rations. The heavy duty PTO shaft handles the high torque loads generated when twin augers break down dense hay bales and blend them with wet byproducts. Whether you are feeding 200 beef cows or finishing 2,000 head in a commercial feedlot, this driveline delivers the reliability needed to keep feed bunks full on schedule.

3. Sheep & Goat Enterprises
Small ruminant operations benefit from TMR feeding systems that deliver precisely portioned rations to prevent selective eating and maximize feed conversion rates. This PTO shaft for Jaylor feed mixer powers the twin auger system to blend fine-stemmed hay, alfalfa pellets, grain mixes, and mineral supplements into a cohesive ration that sheep and goats cannot sort through. The Jaylor 6600 and 6650 models are particularly suited to medium-sized flocks of 400 to 800 adult animals, and this Zapfwelle für landwirtschaftliche Anwendungen ensures the mixing process is smooth and efficient.

4. Swine (Pig) Operations
Modern swine operations increasingly use TMR mixing systems to blend custom rations for sows, growing pigs, and finishers. This tractor PTO shaft transfers reliable rotational power to the Jaylor mixer, which processes corn, soybean meal, dried distillers grains, and vitamin-mineral premixes into a homogeneous feed blend. The PTO shaft with slip clutch protection is especially important in swine feed mixing, where wet byproducts and sticky ingredients can cause sudden torque spikes that would otherwise damage unprotected driveline components.

5. Horse & Equine Operations
Equine facilities, breeding farms, and training centers use Jaylor TMR mixers to prepare consistent forage blends that control dust, reduce waste, and deliver balanced nutrition to performance horses, broodmares, and growing stock. This PTO drive shaft for feed mixer powers the mixer's twin auger system to gently blend timothy hay, alfalfa, beet pulp, and supplements without over-processing the forage fiber that is essential for equine digestive health. The smooth, low-vibration operation of this PTO driveline shaft ensures quiet operation that does not startle horses in adjacent stalls or paddocks.

How to Install PTO Shaft on Your Jaylor TMR Mixer

Schritt 1: Sicherheitsvorbereitung
Before beginning any installation work on the PTO shaft for Jaylor twin auger TMR mixers, park the tractor on level ground and set the transmission to PARK or place it in gear with the parking brake fully engaged. Shut off the engine and remove the ignition key. Wait for all rotating components to come to a complete stop. Never work on or near a PTO drive shaft with the engine running. Wear close-fitting clothing, safety gloves, and eye protection. Ensure no bystanders are within the operating zone of the tractor or mixer.

Step 2: Remove the Old PTO Shaft
If you are replacing an existing shaft, disconnect the old tractor PTO shaft from the tractor's PTO stub first. Locate the locking collar or push-pin mechanism on the tractor-end PTO shaft yoke. Press the release button or pull the locking pin while gently sliding the yoke rearward off the splined stub shaft. Then disconnect the implement end from the Jaylor mixer's input shaft using the same method. Support the shaft with both hands during removal because a complete PTO driveline shaft assembly is heavy, typically 15 to 25 kg depending on the category size. Set the old shaft aside for inspection or disposal.

Step 3: Verify Length and Fitment
Before installing the new CMN Transmission PTO shaft for Jaylor feed mixer, verify the PTO shaft length and PTO shaft dimensions match your application. Extend the telescoping tubes to their maximum length and compare the center-to-center distance with the actual distance between the tractor PTO stub and the mixer input shaft when the tractor and mixer are positioned at maximum working separation. The PTO shaft tube overlap must remain at least 150mm (6 inches) at full extension to prevent the inner and outer tubes from separating during operation. If the shaft is too long, it may bottom out when the tractor is close to the mixer; if too short, it could pull apart at full extension.

Schritt 4: Verbinden Sie zuerst das Implementierungsende.
Align the implement-side PTO shaft yoke with the Jaylor mixer's input shaft. Slide the splined connection onto the mixer's input stub and push firmly until the locking mechanism engages with an audible click. Verify that the shaft is locked by attempting to pull it back off. The shaft should not come free without pressing the release mechanism. If your configuration includes the PTO shaft with slip clutch, the clutch assembly should be positioned on the implement side of the shaft, closest to the mixer.

Schritt 5: Traktorteil anschließen
With the implement end secured, carefully align the tractor-side splined yoke with the tractor's 1000 RPM PTO shaft stub. The 1-3/8" 21-spline profile will only engage in the correct alignment. Slide the yoke onto the stub shaft until the locking collar snaps into position. Verify the lock is fully engaged. Secure the PTO shaft guard retaining chains to both the tractor drawbar and the mixer frame to prevent the guard from rotating with the shaft.

Step 6: Test and Verify
Start the tractor engine and slowly engage the PTO at low idle speed. Observe the PTO shaft for any unusual vibration, wobble, or noise. Gradually increase to full operating speed (1000 RPM). Check that the PTO shaft cover remains stationary and that neither end connection shows any sign of looseness. Run the mixer empty for two to three minutes to confirm smooth operation before loading feed material. After the first hour of operation, shut down and re-check all connections, grease all PTO shaft u joint fittings, and inspect the slip clutch or shear bolt PTO shaft mechanism for proper function.

How to Choose the Right PTO Drive Shaft for Feed Mixer

1. Confirm PTO Speed (540 vs. 1000 RPM)
The Jaylor 6000 Series twin auger models (6600, 6650, 6750, 6850) operate on a 1000 RPM PTO shaft standard. Check your tractor's PTO output specification before ordering. A 1000 RPM PTO stub typically features a 1-3/8" 21-spline profile, whereas a 540 PTO shaft uses a 1-3/8" 6-spline profile. Connecting a 1000 RPM shaft to a 540 RPM PTO or vice versa will result in incorrect auger speed and potential equipment damage.

2. Determine the Correct Shaft Category
Different PTO shaft sizes handle different torque loads. For the Jaylor 6600 and 6650 models, a CAT4 (Size 6) shaft is typically sufficient. Larger models like the 6750 and 6850 may require a CAT6 (Size 8) shaft to handle the higher torque demands of larger tub volumes and heavier feed loads. Choosing the correct category ensures the PTO drive shaft operates within its rated capacity, preventing premature failure from under-specification.

3. Measure the Required Shaft Length
Measure the center-to-center distance between the tractor PTO stub and the mixer input shaft in both the closest and farthest working positions. The PTO shaft length must accommodate both extremes with adequate tube overlap (minimum 150mm). CMN Transmission manufactures custom PTO shaft assemblies to your specific measurements, so provide both minimum and maximum distances when ordering to ensure perfect fitment.

4. Select the Overload Protection Type
Choose between a slip clutch PTO shaft and a shear bolt PTO shaft based on your operational preferences. The slip clutch offers automatic, resettable protection and is ideal for operations mixing abrasive or variable-density feed ingredients daily. The PTO shaft shear bolt option is simpler and less expensive but requires replacement pins after each overload event. For high-frequency commercial mixing, the slip clutch is the recommended choice.

5. Verify Spline Compatibility
Check both the tractor-side and implement-side spline profiles. Most 1000 RPM tractors use a 1-3/8" 21-spline PTO stub. The implement side connecting to the Jaylor mixer input may be 1-3/8" 21-spline or 1-3/4" 20-spline depending on the mixer model and year. If your configuration requires a different spline on either end, CMN Transmission can supply the correct PTO shaft adapter or custom yoke to match.

6. Consider Your Operating Environment
If you operate in dusty, wet, or corrosive conditions such as near silage pits, manure storage, or coastal environments, request the enhanced surface treatment option with zinc plating on all critical surfaces. For operations mixing multiple batches daily with minimal downtime, the heavy duty PTO shaft with the highest clutch torque rating (1800 Nm) provides additional reserve capacity and longer service intervals between adjustments.

Common Troubleshooting for Feed Mixer PTO Shaft Issues

1. Übermäßige Vibrationen während des Betriebs
If you notice unusual vibration while the PTO shaft is running, the most common causes are worn PTO shaft u joint cross bearings, misaligned yoke phasing, or insufficient tube overlap. Begin by shutting down the tractor and inspecting each PTO shaft universal joint for play. Grip each yoke near the cross bearing and try to rock it. Any detectable movement indicates the cross bearing kit needs replacement. Next, verify that both yoke forks on the same side of the shaft are aligned in the same rotational plane (proper phasing). Misphased yokes create a sinusoidal vibration that intensifies at higher RPM. Finally, check that the inner and outer PTO shaft tube sections maintain at least 150mm of overlap; insufficient overlap allows lateral deflection that manifests as vibration.

2. Slip Clutch Engages Too Frequently
If your slip clutch PTO shaft is slipping during normal mixing loads, the friction disc springs may have weakened or the disc surfaces may be glazed from heat. Remove the clutch assembly and inspect the friction plates for glazing, scoring, or reduced thickness. If the plates appear serviceable, adjust the spring preload according to the clutch manufacturer's specification to restore the correct engagement torque. If the discs are glazed or worn below minimum thickness, replace the entire friction pack. Also verify that you are not exceeding the mixer's rated batch weight, which can overload even a properly adjusted clutch.

3. Shaft Difficult to Telescope
When the PTO shaft tubing becomes difficult to slide in or out, the most likely cause is lack of lubrication on the slip profile surfaces, or corrosion buildup from exposure to silage acids and moisture. Disconnect the shaft from both the tractor and mixer. Separate the inner and outer tubes, clean the profile surfaces thoroughly with a wire brush, and apply a generous coating of anti-seize or PTO shaft slip profile grease. Reassemble and verify smooth telescoping action across the full range of travel. If the tubes are scored or corroded beyond cleaning, replacement PTO shaft tube components are available from CMN Transmission.

4. Shear Bolts Breaking Repeatedly
Frequent PTO shaft shear bolt failure indicates either an overload condition within the mixer or incorrect shear bolt grade. First, inspect the mixer tub for foreign objects such as wire, metal fragments, or frozen feed masses that may be overloading the auger system. Check that the auger knives are sharp and the tub liner is not excessively worn, both of which increase mixing resistance. If the mixer is mechanically sound, verify that you are using the correct grade of shear pin PTO shaft bolts as specified by CMN Transmission. Using bolts from a hardware store with unknown shear strength will result in either premature failure or, worse, failure to shear under overload, risking damage to the gearbox.

5. Ungewöhnliche Geräusche von Kreuzgelenken
Clicking, popping, or grinding sounds from the PTO shaft u joint area indicate bearing failure or inadequate lubrication. Grease all PTO shaft universal joint fittings every 8 operating hours using a high-quality EP2 lithium grease. Pump grease until fresh lubricant appears at all four bearing cap seals. If noise persists after greasing, the cross bearing has likely failed internally and must be replaced. CMN Transmission supplies replacement cross-and-bearing kits matched to each shaft category, ensuring correct fit and bearing capacity for the 1000 rpm PTO shaft operating speed of Jaylor twin auger TMR mixers.

Feed Mixer PTO Shaft and Feed Mixer Gearbox

The feed mixer PTO shaft and the feed mixer gearbox are the two most critical power transmission components in any TMR mixing system, and they must work in concert for the mixer to operate reliably and efficiently. The PTO drive shaft for feed mixer serves as the external mechanical link that transfers rotational energy from the tractor's power take-off output to the mixer. It handles the variable geometry between tractor and mixer through its telescoping tube design and PTO shaft universal joint assemblies, while simultaneously providing overload protection through its integrated slip clutch PTO shaft or shear bolt PTO shaft mechanism. Without a properly functioning PTO shaft, the mixer's gearbox receives no input power and the augers cannot rotate.

The feed mixer gearbox, mounted internally on the mixer frame, receives the rotational input from the PTO driveline shaft and converts it into the specific speed and torque outputs required to drive the mixer's auger or augers. In Jaylor twin auger TMR mixers, the gearbox is a planetary gear system that performs two essential functions: it reduces the 1000 RPM input from the 1000 RPM PTO shaft down to the 20-40 RPM range required for effective auger rotation, and it redirects the rotational axis from the horizontal PTO input to the vertical auger shafts. This right-angle speed reduction and directional change would be impossible without a properly engineered gearbox.

The relationship between the PTO shaft for TMR feed mixer and the gearbox is symbiotic. If the PTO shaft delivers inconsistent or pulsating torque due to worn PTO shaft u joint bearings, misphased yokes, or damaged PTO shaft tubing, the gearbox bearings and seals absorb those vibrations and wear out prematurely. Conversely, if the gearbox develops internal problems such as worn planet gears or damaged bearings, the resulting resistance spikes are transmitted back through the shaft, overloading the PTO shaft universal joint assemblies and accelerating their failure. This is why CMN Transmission recommends inspecting both the PTO shaft and the gearbox together whenever either component shows signs of wear.

CMN Transmission supplies both feed mixer PTO shaft assemblies and feed mixer gearbox units for Jaylor and other major TMR mixer brands. By sourcing both components from a single manufacturer, you ensure that the shaft's torque output characteristics precisely match the gearbox's input requirements, eliminating compatibility issues that can arise when mixing parts from different suppliers. Whether you need a complete PTO shaft for Jaylor feed mixer replacement, a standalone gearbox rebuild, or both components as a matched set, CMN Transmission provides the engineering expertise and manufacturing capability to keep your mixing operation running at peak efficiency.

Warum sollte man sich für die landwirtschaftlichen Zapfwellen von CMN Transmission entscheiden?

CMN Transmission is one of the world's leading manufacturers and suppliers of industrial power transmission system solutions, producing a comprehensive range of components including PTO drive shafts, hydraulic cylinders, planetary gearboxes, worm gearboxes, chain sprockets, chains, bevel gears, gear racks, pulleys, taper bushes, and couplings. As an integration of industry and trade, we implement direct sales from our factory, ensuring controllable delivery timelines and rapid technical feedback that traditional multi-tier distribution channels cannot match.

When you choose a CMN tractor PTO shaft for your Jaylor TMR mixer, you are choosing a manufacturer that combines advanced production technology with genuine application expertise. Our PTO shaft production lines use CAD-designed tooling, CNC-machined yoke forks, induction-hardened cross trunnions, and cold-drawn profiled PTO shaft tubing to deliver dimensional accuracy and material performance that meets or exceeds the original equipment specification. Every shaft undergoes 100% inspection using coordinate measuring machines (CMM) and dynamic balance testing before leaving our facility.

As a family-owned company, our strength lies in combining traditional manufacturing values with a young, dynamic team. This combination allows us to maintain the stability of our heritage while injecting new thinking that drives the company to remain agile and innovative. We hold ISO9001, CE, and TS16949 certifications that verify our quality management systems meet the highest international standards. Our products are exported to Europe, North America, South America, the Middle East, Africa, Southeast Asia, and Oceania, serving farm operations ranging from 50-head family dairies to 10,000-head commercial feedlots.

What truly sets CMN Transmission apart is our commitment to customization and customer service. We do not simply offer a catalog of standard sizes and expect you to make them work. Our engineering team works directly with each customer to confirm tractor specifications, verify mixer model compatibility, recommend the optimal clutch configuration, and manufacture the shaft to the exact PTO shaft length and PTO shaft dimensions required. Whether you need a single replacement of Bondioli & Pavesi PTO shaft for your farm, or a bulk OEM supply contract for your equipment dealership, CMN Transmission delivers quality-first solutions with competitive pricing and the fastest lead times in the industry. With "Transmit Force, Drive Future" as our business philosophy, we provide support to agricultural operations worldwide and promote efficiency and innovation in livestock feeding systems.

Häufig gestellte Fragen

Q: What PTO shaft size do I need for my Jaylor 6600 twin auger TMR mixer?
A: The Jaylor 6600 typically requires a CAT4 (Size 6) PTO shaft for Jaylor twin auger TMR mixers rated for 1000 RPM PTO shaft operation. The tractor-side connection is a 1-3/8" 21-spline interface standard for 1000 RPM tractors. CMN Transmission recommends verifying your specific tractor's spline profile and measuring the center-to-center distance between the PTO stub and mixer input before ordering to ensure the correct PTO shaft length and configuration.

Q: Is this PTO shaft a direct replacement for the original Bondioli & Pavesi unit on my Jaylor mixer?
A: Yes, this PTO drive shaft is engineered as a direct-fit replacement of Bondioli & Pavesi PTO shaft assemblies originally supplied with Jaylor 6000 Series twin auger TMR mixers. All critical PTO shaft dimensions, spline profiles, yoke geometry, and tube profiles match original equipment specifications, so no modification, shimming, or PTO shaft adapter is needed. Simply remove the old shaft and install the CMN replacement.

Q: Should I choose a slip clutch or shear bolt PTO shaft for my feed mixer?
A: For commercial TMR mixing operations that run multiple batches daily, the slip clutch PTO shaft is the recommended choice because it provides automatic, resettable overload protection without requiring bolt replacement after each trip event. The shear bolt PTO shaft option is suitable for lighter-duty operations or as a cost-effective alternative. Both configurations are available from CMN Transmission for all four Jaylor twin auger models (6600, 6650, 6750, 6850).

Q: How often should I grease the universal joints on my feed mixer PTO shaft?
A: CMN Transmission recommends greasing all PTO shaft u joint fittings every 8 operating hours or at the start of each working day during peak feeding season. Use a high-quality EP2 lithium-based grease and pump until fresh grease appears at all four bearing cap seals on each PTO shaft universal joint. Regular lubrication is the single most important maintenance step to extend the service life of your tractor PTO shaft and prevent costly cross bearing failure.

Q: Can I use a 540 RPM PTO shaft on my Jaylor 6750 TMR mixer?
A: No. The Jaylor 6750 (and all 6000 Series twin auger models: 6600, 6650, 6750, 6850) is designed for 1000 RPM PTO shaft operation. Using a 540 PTO shaft would result in the augers spinning at approximately half the intended speed, leading to poor mix quality, extended mixing times, and potential overloading of the gearbox. Always match the PTO shaft speed rating to your mixer's input specification.

Q: What is the maximum operating angle for the PTO shaft u-joints on this assembly?
A: The PTO shaft universal joint assemblies on this heavy duty PTO shaft are rated for continuous operation at angles up to 25 degrees. For best results and longest bearing life, CMN Transmission recommends keeping the operating angle below 15 degrees during sustained mixing operations. Excessive angles accelerate PTO shaft u joint wear and create cyclic speed fluctuations that increase vibration throughout the driveline.

Q: Can CMN Transmission make a custom length PTO shaft for my specific tractor and mixer setup?
A: Absolutely. CMN Transmission specializes in custom PTO shaft manufacturing. Simply provide the minimum and maximum center-to-center distances between your tractor's PTO stub and the Jaylor mixer's input shaft, and our engineering team will manufacture a shaft with the optimal collapsed length and telescoping range. Custom spline configurations and clutch torque ratings are also available to match any tractor and mixer combination.

Q: How do I know when my PTO shaft parts need replacement?
A: Common indicators that PTO shaft parts need replacement include: noticeable vibration during operation (worn PTO shaft u joint bearings), difficulty telescoping the shaft (scored or corroded PTO shaft tube surfaces), audible clicking or popping sounds (failed cross bearings), visible grease leakage from bearing caps (damaged seals), and excessive play or wobble when gripping the PTO shaft yoke near any joint. If you observe any of these symptoms, inspect and replace the affected components promptly to prevent cascading damage to the mixer gearbox.

Q: Does CMN Transmission offer PTO shaft guard replacements separately?
A: Yes, the PTO shaft guard and PTO shaft cover components are available as separate replacement parts. Operating a PTO drive shaft without a functional guard is extremely dangerous and violates safety regulations in most jurisdictions. If your existing guard is cracked, missing, or the internal bearing no longer allows free spinning, CMN Transmission supplies replacement guards sized to match each shaft category for Jaylor TMR mixer applications.

Q: What certifications does CMN Transmission hold for PTO shaft manufacturing?
A: CMN Transmission holds ISO9001 quality management certification, CE marking for European market compliance, and TS16949 automotive-grade quality certification. These certifications verify that every agricultural PTO shaft is manufactured under controlled processes with documented material traceability, dimensional inspection records, and quality control procedures from raw material to finished assembly.

Q: Can this PTO shaft be used on other brands of vertical feed mixers besides Jaylor?
A: While this PTO shaft for Jaylor feed mixer is specifically engineered and dimensioned for the Jaylor 6600, 6650, 6750, and 6850 twin auger TMR mixers, the underlying PTO shaft parts and driveline architecture are compatible with other vertical feed mixer PTO shaft applications that use the same spline profiles, shaft category, and 1000 RPM operating speed. CMN Transmission also manufactures dedicated PTO drive shafts for other feed mixer brands including Supreme, Peecon, Kuhn Knight, NDE, and Penta. Contact our engineering team with your mixer model and tractor specifications for a compatibility assessment.

Kundenrezensionen

Robert Vandenberg, Dairy Farm Owner, United States
"We run a 600-head dairy operation in Wisconsin and our Jaylor 6750 is in use twice a day, 365 days a year. After four seasons the original Bondioli u-joints were completely shot and the tube profile was scored. Ordered the CAT6 replacement from CMN Transmission and it arrived in 12 days to our door. The 1-3/8 inch 21-spline connection dropped right onto our tractor's 1000 RPM PTO stub with zero modification. We are about 300 hours in on the new shaft now, mixing corn silage, haylage, and grain concentrates, and it runs smooth as the day we installed it. The slip clutch saved us once already when a frozen silage chunk hit the augers. Very pleased with the value for the money."

Craig Morrison, Feedlot Manager, Canada
"I manage a beef feedlot in Alberta running two Jaylor 6850 mixers. When our second PTO shaft started making noise at the u-joints, I contacted CMN after finding them online. Their team was responsive and helped me select the right clutch torque rating for our operation. The shaft quality is very good, the yoke machining feels tight and precise. Delivery to Canada took about two and a half weeks, which was faster than I expected from an overseas supplier. We have been running the shaft for five months now with daily use and no issues at all. The guard plastic is thicker than the original and the grease fittings are in accessible positions."

Klaus Richter, Farm Operations Director, Germany
"Wir betreiben einen Milchviehbetrieb mit 420 Kuehen und benutzen einen Jaylor 6650 Futtermischer. The old PTO shaft was a Walterscheid unit that lasted about 3 years before the tubes started binding up. CMN's replacement shaft telescopes very smoothly and the cross bearings feel much more robust than what we had before. The price was roughly 40% less than what our local dealer quoted for the Bondioli original. Shipping to Germany took 18 days, which was acceptable. My mechanic said the dimensional accuracy of the spline and yoke is excellent. We mix about four batches per day and this shaft handles the workload without any complaint."

Shane Rutherford, Livestock Producer, Australia
"Our sheep and goat operation in New South Wales uses a Jaylor 6600 to mix rations for about 1,200 animals. The old PTO shaft shear bolts kept snapping every other week, which was costing us time and production. CMN recommended upgrading to their slip clutch configuration instead. Best decision we made. The clutch handles the load spikes from dry hay bales without any drama, and we have not had a single unplanned stoppage in four months of daily use. The customer service team also sent me a detailed dimensional drawing before I ordered so I could verify the length matched our tractor setup."

Alejandro Navarro, Dairy Operator, Argentina
"Compramos un eje PTO de CMN para nuestro mezclador Jaylor 6750. I was skeptical about buying from a non-European brand but the quality exceeded my expectations. The alloy steel yokes are heavy and well-machined, the universal joints have zero play right out of the box, and the safety guard is properly designed with chain anchoring points on both ends. We run a 350-cow dairy near Cordoba and the shaft has performed flawlessly through six months of heavy winter feeding. Our mechanic noted that the cross bearing grease fittings are positioned at 90 degrees to each other rather than all on one side, which makes greasing much easier in tight spaces."

Wei Jianping, Farm Technical Manager, China
"We operate a commercial pig farm with 8,000 head in Henan Province and use a Jaylor 6650 to mix sow and finisher rations. CMN Transmission is a domestic supplier for us, so delivery was just 5 days. The PTO shaft arrived well-packaged with protective caps on the splines and the u-joints pre-greased. Installation took about 30 minutes. The shaft handles the high-moisture corn and soybean meal mixtures we run without any vibration issues. What impressed me most was the technical support. Their engineer called us to confirm our tractor PTO specifications before shipping, which prevented a potential spline mismatch with our older model tractor."

Jean-Pierre Delacroix, Equine Facility Manager, France
"I purchased two PTO shafts from CMN for our Jaylor 6600 and 6850 mixers at our equine breeding facility near Deauville. The horses require very consistent forage blends and any interruption to the feeding schedule creates stress in the barn. These shafts have been running for eight months now, no noise, no vibration, no clutch slippage under normal load. The 1000 RPM operation is smooth and the safety guards stay perfectly stationary while the shaft spins underneath. I also appreciate that CMN provided metric dimensional certificates with the shipment, which our insurance inspector required for our farm equipment compliance file."

Ricardo Ferreira, Operations Director, Brazil
"We supply TMR mixed feed to three dairy cooperatives in Sao Paulo state, running Jaylor 6750 and 6850 mixers on a combined basis of 12 to 14 batches per day across our fleet. PTO shaft reliability is not optional for us, it is the difference between meeting delivery contracts or paying penalties. We switched to CMN shafts 10 months ago after repeated delays getting Bondioli replacement parts through our local dealer. The CMN shafts have performed identically to the originals at a significantly lower cost. Their factory ships directly to us and the shafts arrive in solid wooden crates, ready to install."

Murray Henderson, Dairy Farmer, New Zealand
"Our dairy farm near Christchurch has been using a CMN PTO shaft on our Jaylor 6650 mixer for over a year now. We milk 480 cows and mix three batches daily through the peak season. The shaft has logged well over 500 hours with nothing more than regular greasing every eight hours. I had some concern about ordering from overseas, but CMN's sales team provided WhatsApp support throughout the ordering and shipping process, including photos of our specific shaft before it left the factory. The slip clutch mechanism feels solid and the engagement torque has remained consistent. When our second mixer needs a shaft replacement, we will order from CMN again without shopping around."