Marine Winch

Marine Capstan Series

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A capstan is a mechanical device characterized by a vertical rotating spindle or drum, designed to control the movement of ropes, cables, chains, or tape through applied rotational force. Its primary function is to provide mechanical advantage, enabling the management of heavy loads with reduced effort.

Vertical Capstan

Features Of Vertical Capstan made by GT Winch Group

  • Vertical Drum Design—A vertical rotating drum allows efficient winding of ropes or chains, providing mechanical advantage for tasks like anchor handling or mooring. This design is a hallmark of traditional capstans
  • Capstan vs. Windlass—Orientation: A capstan has a vertical axis, while a windlass (used for similar purposes) has a horizontal axis.

    Applications: Windlasses are typically dedicated to anchor handling, whereas capstans may handle varied tasks like mooring or cargo.

Vertical Electric Marine Capstan

Q: Why choose a vertical capstan for marine applications?
A: Vertical capstans offer space efficiency, high torque, and safety compliance, making them ideal for modern vessels.

Q: How does the vertical capstan equation improve load control?
A: The formula Thold=Tapply⋅eμθ ensures minimal input force can manage heavy loads via friction and rope wraps.

Q: Are vertical capstans suitable for offshore platforms?
A: Yes! Their corrosion resistance and adaptability make them perfect for offshore rigs, tugboats, and research vessels.

vertical winch machine

 

Vertical Capstan Winch Machine

electric-marine-capstan

 

Electric Marine Capstan

ship capstan winch for sale

 

Ship Capstan Winch Manufacturer

Stainless Steel Material Capstan Equipment

1.Superior Corrosion Resistance

  • Marine-Grade Material: Typically crafted from AISI 316/316L stainless steel , these capstans resist rust, saltwater, and chemical exposure.

  • Longevity: Ideal for offshore platforms, fishing vessels, and coastal installations where corrosion is a constant threat.

2. High Strength and Durability

  • Load Capacity: Stainless steel’s tensile strength supports heavy-duty operations, handling loads up to 20+ metric tons without deformation.

  • Impact Resistance: Withstands harsh weather, UV radiation, and physical abrasion, ensuring reliability in extreme conditions.

3. Low Maintenance Design

  • Easy Cleaning: Non-porous surface prevents dirt, algae, or salt buildup; simple rinsing maintains functionality.

  • No Coatings Needed: Unlike carbon steel, stainless steel eliminates the need for anti-rust paints or galvanization.

mooring capstan winch machine

Q: Why choose stainless steel over aluminum for capstans?
A: Stainless steel offers higher strength and better corrosion resistance in saltwater, whereas aluminum is lighter but less durable.

Q: Are stainless steel capstans suitable for freshwater use?
A: Yes! They resist mineral deposits and algae growth, making them ideal for lakes, rivers, and reservoirs.

Q: Can stainless steel capstans be repaired if damaged?
A: Yes—welding and polishing can restore functionality and appearance.

Stainless Steel Wrapping Head Marine Capstan

 

Stainless Steel Warping Marine Capstan

light duty boat capstan with steel wrapping head

 

light duty boat capstan with steel wrapping head

anchor capstan for boats

 

anchor capstan for boats

Heavy-Duty Marine Capstan Technical Specifications

Category Parameter
Application Offshore anchoring, heavy mooring, salvage operations, oil rigs, large cargo vessels
Compliance Standards SOLAS, ISO 9001/14001, DNV GL/ABS/Lloyd’s Register certifications.etc,customizable
Drum Orientation Vertical-axis (standard) / Horizontal-axis (optional)
Drum Diameter 600–1200 mm
Rope/Chain Capacity Rope: 50–150 mm diameter (synthetic/wire)
Chain: 20–50 mm diameter (Grade G70)
Maximum Line Pull (Static) 50–200 metric tons (490–1960 kN)
Line Speed (Under Load) 5–20 m/min (variable speed control)
Gear Ratio 25:1 to 50:1 (planetary or helical gear systems)
Drive Type Electric: 400–690V AC, 3-phase
Hydraulic: 50–150 L/min flow, 250–350 bar
Hybrid (electric + backup hydraulic)
Motor Power Electric: 30–200 kW
Hydraulic: 40–250 HP
Control System IP68-rated remote control, PLC automation, touchscreen interface, emergency stop
Weight 500–8000 kg (depending on load capacity)
Mounting Reinforced deck/platform mounting with seismic-grade bolts
Safety Features Overload sensors, anti-reverse ratchet, fail-safe brakes, spark-proof design (ATEX compliance)
Operating Temperature -40°C to +70°C (arctic to tropical conditions)
Ingress Protection (IP Rating) IP69K (high-pressure/steam resistant)
Customization Options Explosion-proof models, galvanized coatings, dual-drum configurations
ship capstan

Ship Capstan

GT Winch

GT WINCH Horizontal Capstan

GT WINCH Vertical Capstan

GT Winch

Warping Capstan for sale

Warping Capstan for sale

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Standard Hydraulic Capstan

Standard Hydraulic Capstan

GT Winch

ship capstan winch
capstan anchor winch machine
capstan anchor winch machine

Other Optional Winch Accessories:

  • Customizable Solutions – Available in various load capacities, speeds, and configurations to meet specific industrial requirements.
  • High-Quality Manufacturing – Built with strict quality standards to ensure durability, reliability, and long service life.
  • Low Maintenance Requirements – Engineered for minimal maintenance, reducing downtime and operational costs.
  • Rope spooling device
industrial spooling device on winch equipment
  • Single or Double Winch Drum
Winch Drum for sale
  • Offshore Equipment
marine air bag for ships
Please feel free to give your inquiry in the form. We will reply in 8h.

OEM Supported-Free Inquiry

Email: info@gtwinch.com

 

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GT Industrial Winch Equipment