Marine Electric Capstan

Marine Electric Capstan

Application

A marine electric capstan is a type of machinery that is used on ships and boats to handle heavy loads, such as anchors, mooring lines, and other types of ropes. It consists of a motor, gearbox, and drum, which is used to wind up the rope. The capstan is mounted on the deck of the ship, and the rope is usually led through a fairlead to the capstan head.

The electric motor powers the capstan, and the gearbox reduces the speed of the motor while increasing the torque, allowing it to handle heavy loads. The drum is usually grooved or has a surface texture to increase the friction between the rope and the drum, which allows the capstan to grip the rope and pull it in.

Marine electric capstan is driven by electric power and can be delivered with a one, two or three speed electric motor. According to shaft center line orientation, there are electric vertical capstan andelectric horizontal capstan. Marine electric capstans are commonly used in maritime industries, such as shipping, fishing, and oil and gas exploration. They are often used in combination with winches to provide effective and efficient control over loads on board a vessel.

For more marine electric capstan specifications,please click here.

Material

Cast steel, 316L stainless steel.

Advantages and Features

1. Compact structure, high strength;

2. Local control and remote control;

3. Easy for installation, maintenance, lubrication and inspection;

4. Corrosion resistance, long lifespan;

5. With or without gypsy wheel;

6. Reliable service, high security;

7. Can be customized according to your requirements;

8. Manual or hydraulic brake and clutch;

9. Vertical or horizontal;

10. Approved by RINA, RMRS...

Marine Electric Capstan Classification

Marine Electric Capstan Classification
Electric Horizontal Capstan	Electric Vertical Capstan

Main Technical Parameter

Mooring Load（KN）	Nom.Speed ≥（m/min）	Chain Dia(mm)	Wire Dia（mm）	Overall size L×B×H	Power （KW）	Speed （r/min）
10	18	φ300	φ13	1520×745×600	6/2.5	1350/390
15	18	φ300	φ13	1400×600×900	7.5/7.5/5	1400/665/300
20	18	φ340	φ13	1550×700×1000	11/11/7.5	1400/665/300
30	18	φ370	φ18	1630×750×1010	12.5/12.5/5.7	1437/689/300
40	18	φ340	φ20	1680×920×1000	16/16/11	1400/665/300
50	18	φ340	φ20	1860×920×1000	22/22/16	1400/665/335
70	15	φ450	φ24	2200×1055×1200	30/30/22	1400/665/300
80	15	φ510	φ30	2300×1125×1300	30/30/22	1420/680/320
100	15	φ540	φ30	2500×1150×1300	45/45/30	1420/680/320
120	15	φ570	φ32	2800×1350×1300	45/45/30	1420/680/320
160	12	φ760	φ36	2870×1920×1415	45/45/30	1420/680/320
200	9	φ700	φ40	2830×1960×1600	45/45/30	1420/680/320
Above specifications only for reference, We can supply various capstan according to your requirements.

We not only provide customers with high-quality products, but also provide complete system solutions and added services for specific customers. Therefore, There are  high competitiveness.

Configuration options

Part Name	Type/Material	Advantages/Disadvantages
Capstan Head	ZG270-500	Medium carbon cast steel has certain toughness and plasticity, high strength and hardness, good machinability, acceptable weldability, and poor casting performance than low carbon steel. Casting defects cannot be avoided.
	ZG270-500 Precision Casting	High cost and no defects
	ZG310-570	Very high strength, excellent toughness and plasticity, low cost.
	Q345-B	The high strength of welding capstan head.
	316 L Stainless Steel	Cold-rolled products have an excellent gloss and beautiful appearance; good processing performance; excellent welding performance; excellent pitting corrosion resistance, incredibly high-temperature strength, and excellent intergranular corrosion resistance.
Gear Reducer	Domestic second-tier brands	Poor quality and short service life.
	Domestic first-line brand	Cost-effective and long service life.
	*Homemade (recommended)	Good quality, cost-effective
Electric Motor Type	HENGLI and LANHAI brand	Good quality, cost-effective, long service life. Self-contained brake, high safety.
	Other brands	High power consumption, relatively poor quality.
	ABB/WEG/Siemens	Good quality, high cost, long delivery time.

Marine Electric Capstan in Factory

Images of Marine Electric Capstan

How To Choose The Marine Capstan?

Choosing the right marine electric capstan depends on several factors, including the intended use, the vessel's size and weight, and the environmental conditions. Here are some general considerations to help in the selection process:

1)Capacity: Determine the maximum load capacity that the capstan will need to handle, based on the vessel's size and weight, and the intended use of the capstan.

2)Speed: Determine the desired speed of the capstan, based on the vessel's operational requirements and the environmental conditions.

3)Power source: Determine the power source for the capstan, whether it will be powered by the vessel's electrical system, a dedicated generator, or some other power source.

4)Control system: Consider the type of control system needed for the capstan, whether it will be operated manually, with a remote control, or through an integrated control system.

5) Mounting: Determine the mounting method for the capstan, whether it will be mounted on the deck or below deck, and whether it will require a custom mounting arrangement.

6) Environmental conditions: Consider the environmental conditions where the capstan will be used, such as temperature, humidity, and exposure to saltwater and other corrosive elements.

7) Safety features: Look for safety features such as emergency stop buttons, overload protection, and other safety mechanisms.

8) Compliance with regulations and standards: Ensure that the capstan is designed and manufactured to comply with relevant regulations and standards, such as those from the International Maritime Organization (IMO), the RMRS, RINA, or other regulatory bodies.

9) Manufacturer reputation and support: Consider the reputation and support of the capstan manufacturer, including their experience and expertise in marine electric capstan design and manufacturing, as well as their level of customer support and service.

It is recommended to consult with a qualified marine electric capstan supplier or engineer to ensure that the capstan is properly selected for the vessel's intended use and that it complies with relevant regulations and standards.