Constant Tension Mooring Winches automatically adjust tension to maintain vessel position despite tidal or load changes.

Mooring Winches are used to secure ships to docks by winding or releasing mooring lines under controlled tension.

Both types ensure safe berthing, with constant tension models offering dynamic response to environmental shifts.

Constant Tension Mooring Winches:

- Size: Typically 10 to 500 tons line pull capacity

- Grade: High-tensile steel (ASTM A514 or equivalent)

- Viscosity: Hydraulic oil ISO VG 32-68 (depending on system)

- Buoyancy: N/A (winch is deck-mounted)

- Material: Drum and frame in carbon steel or stainless steel (316L for marine environments)

- Brake holding capacity: 100% to 200% of rated load

- Motor power: 15 kW to 500 kW (electric/hydraulic)

- Line speed: 5 to 30 m/min (adjustable)

Mooring Winches:

- Size: 5 to 250 tons line pull capacity

- Grade: Carbon steel (ASTM A36) or alloy steel (ASTM A572)

- Viscosity: Grease (NLGI Grade 2) or hydraulic oil (ISO VG 46)

- Buoyancy: N/A (winch is deck-mounted)

- Material: Drum in forged steel, frame in mild steel with corrosion-resistant coatings

- Brake holding capacity: 80% to 150% of rated load

- Motor power: 10 kW to 300 kW (electric, hydraulic, or pneumatic)

- Line speed: 3 to 20 m/min (fixed or variable)