Planetary Winch Drive Gearbox for Offshore Construction Vessels

A planetary winch drive gearbox is a specialized mechanical component designed for integration into winch systems on offshore construction vessels, such as cranes, anchor handling tug supply ships, and platform support vessels. It employs a planetary gear arrangement, consisting of a central sun gear, multiple planet gears, and an outer ring gear, which enables high torque density, compact design, and efficient power transmission within limited space constraints. These planetary gearboxes are engineered to withstand harsh marine environments, featuring corrosion-resistant materials, robust sealing against water ingress, and the ability to handle extreme loads during operations like mooring, towing, anchoring, and heavy lifting.

Planetary Winch Drive Gearbox Dimensions

General Dimensions

Type	A	B	E	F	G	H	L	M	N	P	Q	Q1	R	Y	Z
WD 1023	290	200 f7	295 f7	320	348	99	383	40	5	41	M16 (16)	24	Ø17 (18)	255	20
WD 1523	328	230 f7	335 f7	368	398	68	414	37	5	34	M16 (22)	24	Ø17 (24)	280	23
WD 2003	355	270 f7	366 f7	394	424	57,5	424.5	37	5	45	M16 (22)	24	Ø17 (24)	320	23
WD 2523	394	300 f7	402 f7	424	450	81	462	50	5	53	M20 (22)	30	Ø14.5 (36)	350	25
WD 3003	432	330 f7	436 f7	465	495	87,5	477	50	5	60	M20 (22)	30	Ø19 (30)	390	25
WD 4803	470	355 f7	476 f7	508	545	128	575	60	5	38	M24 (22)	34	Ø24 (24)	420	30
WD 8003	530	430 f7	544 f7	578	618	129,5	688	55	5	45	M24 (22)	36	Ø24 (30)	480	35
WD 16004*	615	515 h7	640 h7	690	750	129	966	110	5	9	M30 (24)	52	Ø33 (24)	565	30

* Motor adapter on demand

Input Dimensions

	C	D	H1	T	U	V	W	S1	J	S2
Input SAE B	101.6 H8	DP16/32 Z13	20	10	7	37	127	n°4 M12	146	n°2 M14
Input SAE C	127 F8	DP12/24 Z14	30	15	16	56	162	n°4 M12	181	n°2 M16
Input SAE D	152.4 F8	DP8/16 Z13	40	15	28	75	229	n°4 M20	/	/

WDD General Dimensions

Type	A	B	C	D	E	F	G	H	I	L	M	N
WDD A75	285	74	15	10.5	85	99	451	175	200	225	341	255
WDD B100	315	79	20	12.5	93	68	494	200	230	260	392	280
WDD C130	355	79	20	13	93	58	514	200	230	260	416	320
WDD D155	385	94	20	17	110	81	554	230	260	290	443	350
WDD E190	425	99	25	21	135	87.5	592.5	260	310	360	490	390
WDD F230	460	118.5	30	21	139.5	60	678	260	310	360	540	420
WDD G300	530	118.5	30	21	147	61	780.5	300	350	400	610	480

P	Q	R	S	T	U	V     Lmin     Y			Z
200	359	N°16-M16	32	20°	20°	117	320	560	5
230	412	N°22-M16	32	15°	15°	132	350	630	5
270	438	N°22-M16	32	15°	15°	152	370	690	5
300	467	N°22-M20	35	15°	15°	168	385	720	5
330	516	N°22-M20	35	15°	15°	184	390	790	5
355	568	N°22-M24	35	15°	15°	195.5	465	865	5
430	640	N°22-M24	35	15°	15°	233	560	980	5

WDD Performances

	[daN]	[mm]
WDD A75	7500	18
WDD B100	10000	20
WDD C130	13000	22
WDD D155	15500	24
WDD E190	19000	26
WDD F230	23000	28
WDD G300	30000	32

WD Performances

Size	i e	T2 fem [Nm]	Td-max [Nm]	Ts-max [Nm]	n1-max [RPM]
WD 1023	52.83	18100	26900	33400	3100
	62.55	18100	26900	33400	3100
	74.03	18100	26900	33400	3100
	78.70	18100	26900	33400	3100
	93.09	18100	26900	33400	3100
	108.45	18100	26900	33400	3100
	111.15	18100	26900	33400	3100
	117.00	18100	26900	33400	3100
	131.40	18100	26900	33400	3100
	136.27	18100	26900	33400	3100
	165.05	18100	26900	33400	3100
WD 1523	51.46	26100	43200	60000	3100
	60.16	26200	43200	60000	3100
	71.21	26300	43200	60000	3100
	74.11	26300	43200	60000	3100
	76.71	26300	43200	60000	3100
	87.67	26300	43200	60000	3100
	89.61	26350	43200	60000	3100
	104.33	26350	43200	60000	3100
	108.29	24900	43200	60000	3100
	110.27	26400	43200	60000	3100
	126.42	26400	43200	60000	3100
	128.35	26400	43200	60000	3100
	155.48	26500	43200	60000	3100
WD 2003	48.16	33800	57900	80000	3100
	56.31	33500	57900	80000	3100
	57.03	34000	57900	80000	3100
	66.66	33800	57900	80000	3100
	69.38	33000	57900	80000	3100
	71.82	34100	57900	80000	3100
	82.09	33000	57900	80000	3100
	83.90	33650	57900	80000	3100
	97.70	33650	57900	80000	3100
	103.26	33000	57900	80000	3100
	120.21	33000	57900	80000	3100
	145.62	33000	57900	80000	3100
WD 2523	50.29	44050	72800	105000	3100
	58.82	44200	72800	105000	3100
	59.55	44200	72800	105000	3100
	69.62	44300	72800	105000	3100
	72.44	44300	72800	105000	3100
	75.0	44350	72800	105000	3100
	85.70	44350	72800	105000	3100
	87.34	44450	72800	105000	3100
	97.99	42450	72800	105000	3100
	102.02	44500	72800	105000	3100
	105.86	44500	72800	105000	3100
	107.79	44500	72800	105000	3100
	123.62	44500	72800	105000	3100
	125.48	44600	72800	105000	3100
	152.00	44600	72800	105000	3100
WD 3003	49.75	48200	94700	136500	3100
	58.19	48250	94700	136500	3100
	68.02	47620	94700	133700	3100
	71.66	48200	94700	136500	3100
	81.97	48200	94700	136500	3100
	83.74	48250	94700	133700	3100
	95.75	47900	94700	133700	3100
	96.70	48400	94700	136500	3100
	103.04	46800	90600	121200	3100
	112.94	47600	94700	133700	3100
	117.79	46800	90600	121200	3100
	138.88	46800	90600	121200	3100
WD 4803	51.99	69850	123300	160000	3100
	61.55	69350	123300	160000	3100
	71.58	83750	123300	168500	3100
	77.49	67500	123300	160000	3100
	84.68	84000	123300	168500	3100
	90.26	66650	123300	160000	3100
	106.51	84100	123300	168500	3100
	109.39	52000	103200	160000	3100
	123.99	84000	123300	168500	3100
	150.20	70000	123300	168500	3100
WD 8003	56.0	125250	197200	312000	3100
	65.45	125400	197200	312000	3100
	73.1	122000	197200	312000	3100
	85.4	122700	197200	312000	3100
	92.17	125500	197200	298100	3100
	105.08	123000	197200	312000	3100
	108.71	125000	184300	304500	3100
	120.12	122900	197200	312000	3100
	126.50	96500	174500	221600	3100
	141.63	122300	197200	312000	3100
	170.43	96800	174500	221600	3100
WD 16004	200	227000	317000	353000	3100
	233,38	223800	317000	353000	3100
	274,31	233300	317000	353000	3100
	320	232500	317000	353000	3100
	370,13	219000	317000	353000	3100
	393,12	233300	317000	353000	3100
	431,73	219000	317000	353000	3100
	528,91	233500	317000	353000	3100
	605,67	219200	317000	353000	3100
	713,35	219200	317000	353000	3100

Bearing Load Capacity

Type	C0  [N]	Cd  [N]	Z [mm]
WD 1020	330000	183000	17.5
WD 1520	435000	224000	19.7
WD 2000	435000	224000	25.2
WD 2520	620000	315000	21
WD 3000	620000	315000	20.75
WD 4800	800000	390000	13.25
WD 8000	840000	405000	14.5
WD 16000	147000	700000	13.5

General Dimensions

Type	A	B		E		F	G	L		M		N	P		Q		R		Y		Z
RW 512	262	215 f7		246 f7		271	291	246.5		75		11	10		n° 12 M12		n° 12 Ø13		240		20
RW 513	262	215 f7		246 f7		271	291	289.5		75		11	10		n° 12 M12		n° 12 Ø13		240		20
RW 612	262	215 f7		246 f7		271	291	251		75		11	10		n° 12 M12		n° 12 Ø13		240		20
RW 613	262	215 f7		246 f7		271	291	293		75		11	10		n° 12 M12		n° 12 Ø13		240		20
RW 812	330	270 f7		297 f7		327	352	305		100		6	12		n° 12 M16		n° 12 Ø17		300		26.5
RW 813	330	270 f7		297 f7		327	352	348.5		100		6	12		n° 12 M16		n° 12 Ø17		300		26.5
RW 1022	330	270 f7		297 f7		327	352	340		100		6	12		n° 12 M16		n° 12 Ø17		300		26.5
RW 1023	330	270 f7		297 f7		327	352	395.5		100		6	12		n° 12 M16		n° 12 Ø17		300		26.5
RW 1532	393	320 f7		352 f7		383	408	363		113		6	11		n° 12-M20		n° 16 Ø17		360		34.5
RW 2522	393	320 f7		415 f7		448	473	413		115		6	24		n° 16 M20		n° 24 Ø17		360		29.5

Input Dimensions

C

D

H

T

U

V

W

S1

J

S2

Input SAE B

101.6 H8

DP16/32 Z13

138

10

8

30

127

n° 4 M12

146

n° 2 M14

Input SAE C

127 F8

DP12/24 Z14

114

15

16

48

162

n° 4 M12

181

n° 2 M16

Input SAE D

152.5 F8

DP8/16 Z13

128

15

33

47

229

n° 4 M20

/

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Weight and Oil Quantity

	Weight [kg]	Oil Quantity [litri - liters]
RW 512	75	2
RW 513	85	2.3
RW 612	90	2.3
RW 613	100	2.5
RW 812	130	3
RW 813	140	3.5
RW 1022	145	4
RW 1023	155	4.2
RW 1532	195	5
RW 2522	275	7

Bearing Load

Type	C0  [N]	Cd  [N]	Z [mm]
RW 512 - RW 513	65500	72800	20
RW 612 - RW 613	65500	72800	20
RW 812 - RW  813	100000	106000	26.5
RW 1022 - RW 1023	100000	106000	26.5
RW 1532	125000	125000	34.5
RW 2522	143000	390000	29.5

Benefits of Planetary Winch Drive for Offshore Construction Vessels

• Enhanced Torque Density and Compact Design
  Planetary winch drive gearboxes deliver exceptional torque output in a remarkably compact form factor, making them ideal for space-constrained offshore construction vessels where efficient power transmission is essential for heavy lifting and mooring operations without compromising deck space.
• Superior Efficiency and Energy Savings
  These planetary gearboxes achieve efficiency rates up to 98% per planetary stage by distributing loads across multiple planet gears, reducing energy consumption and operational costs during prolonged offshore tasks such as anchoring and towing on construction vessels.
• Robust Durability in Harsh Marine Environments
  Engineered with high-grade, corrosion-resistant materials, planetary winch drives withstand extreme offshore conditions including saltwater exposure, load shocks, and continuous operation, ensuring long-term reliability for vessels involved in construction and maintenance activities.
• High Load Capacity and Precise Control
  By sharing loads among planet gears, these winch drive planetary gearboxes handle substantial weights with precise speed reduction and control, facilitating safe and efficient hoisting, winching, and positioning on offshore construction vessels during critical operations like platform installation.
• Extended Service Life and Low Maintenance
  The design promotes even load distribution and quiet operation, minimizing wear and extending the operational lifespan of winch systems on offshore vessels, which reduces downtime and maintenance requirements in demanding marine settings.
• Versatile Application and Safety Features
  Planetary winch drives offer customizable gear ratios and self-locking mechanisms to prevent back driving, enhancing safety and adaptability for various offshore construction tasks such as crane operations and anchor handling on specialized vessels.

Winch Drive Planetary Gearbox Application Industry

• Offshore Construction and Marine Industry
  Planetary gearboxes are crucial in offshore construction and marine operations, powering winches used for mooring, towing, and anchor handling. Their compact design and ability to handle extreme loads make them indispensable for cranes, anchor handling tug supply ships, and platform support vessels operating in challenging marine environments.
• Oil and Gas Industry
  In the oil and gas sector, planetary gearboxes are integrated into winch systems for drilling rigs, subsea equipment deployment, and pipeline laying. Their robust construction and superior torque capabilities ensure reliable performance under high-pressure conditions, meeting the industry's demand for precision and efficiency in harsh offshore environments.
• Mining and Heavy Equipment Industry
  Planetary gearboxes are widely used in the mining industry to power winches for heavy material handling, excavation, and load transportation. Their ability to handle immense loads and their long service life ensure dependable operation, even under the extreme stress and abrasive conditions typical of mining applications.
• Renewable Energy Sector
  Planetary winch drive gearboxes play a vital role in the renewable energy sector, particularly in offshore wind farm installations. They are used in winches for turbine assembly, transport, and maintenance operations. Their corrosion resistance and precise load control make them ideal for operating in saltwater environments.
• Construction and Civil Engineering
  Planetary gearboxes are integrated into winches for construction cranes and heavy lifting equipment. Their high torque output and compactness make them perfect for space-constrained urban construction sites and large infrastructure projects, ensuring efficient operation while maintaining safety and stability during lifting tasks.
• Shipbuilding and Port Operations
  In the shipbuilding and port industries, planetary winch gearboxes are used in shipyard cranes, loading systems, and berthing operations. Their durability, efficiency, and ability to handle high loads ensure seamless performance in lifting, towing, and cargo handling—key tasks in maintaining smooth shipping operations.

Construction Industry	Marine and Offshore Industry
Forestry and Logging Industry	Oil and Gas Industry

Planetary Winch Drive vs. Planetary Wheel Drive

Planetary Winch Drive	Planetary Wheel Drive