Doughty Heavy Duty Quad Sheave Pulley

Doughty Heavy Duty Quad Sheave Pulley

The Doughty Heavy Duty Quad Sheave Pulley is a robust and modular pulley solution engineered for the theatre, film, and TV industries. This advanced pulley system is designed for high-performance lifting and rigging operations where strength, reliability, and precision are critical.

Constructed with nylon sheaves and ball raced bearings, the pulley ensures smooth, friction-free operation. Its 0.2'' thick steel side plates provide exceptional structural integrity, making it ideal for handling substantial loads with minimal effort.

Available in 4'', 6'', and 8'' sheave diameters, each size offers specific Working Load Limits (WLL) of 441 lbs, 882 lbs, and 1323 lbs respectively. Compatible with both fibre and wire ropes, this pulley supports a range of bracketry and fixings, making it a versatile solution for demanding rigging applications.

Downloads:

User Manual

Key Features:

• Modular construction allows easy assembly of single-sheave units from standard components
• Heavy Duty Quad Sheave Pulley designed for theatre, film, and TV applications
• Nylon sheaves with ball raced bearings for smooth, friction-free operation
• Side plates constructed from 0.2'' thick steel for extreme strength and durability
• Compatible with both fibre and wire ropes; supports a range of bracketry

Specifications:

• Sheave Dimensions & WLL: 4'' (441lbs), 6'' (882lbs), and 8'' (1323lbs) Diameter
• Recommended Rope/Wire Sizes:
  4'' Sheave: 0.5'' Rope OR 0.16'' Wire
  6'' Sheave: 0.7'' Rope OR 0.24'' Wire
  8'' Sheave: 0.7'' Rope OR 0.24'' Wire
• Width: 5'' (Uniform across all sizes)
• Constructed with nylon sheaves and steel side plates
• Supports single, double, triple, quad, and quin sheave configurations

References:

• Spec Sheet
• User Manual
• Doughty Engineering – Member of PLASA and ESTA

Choose Doughty for reliability, safety, and performance in professional rigging and lifting operations.