Ronstan Series 75 Industrial Double Block

The Series 75 Double Sheave Industrial Pulley Block with Becket features two 75 mm (3") sheaves and durable 316 stainless steel side plates with a black powder coat finish. Designed for heavy-duty use, it includes a swivel shackle head for versatile attachment options.

Features:

• Incorporates dual 75 mm (3") sheaves made from low-friction acetal polymer for smooth operation under load
• Equipped with a swivel shackle head that allows easy alignment and secure attachment in various configurations
• Constructed with corrosion-resistant 316 stainless steel components for enhanced durability in harsh environments
• Includes a removable becket to accommodate pre-spliced lines for improved rope security and neatness
• Utilizes drilled shackle pins compatible with safety wire for added security during use
• Offers both fixed and swivel head options to suit different rigging needs and applications
• Features a robust head bolt and becket bolt sized for reliable strength and stability
• Designed to handle heavy loads with a high breaking load and maximum working load limits

Specifications:

• Sheave Diameter: 75 mm (3")
• Breaking Load: 3000 kg (6613 lbs)
• Maximum Working Load: 1500 kg (3307 lbs)
• Maximum Rope Diameter: 14 mm (9/16")
• Pin Diameter: 8 mm (5/16")
• Weight: 1040 g (36.7 oz)
• Head Bolt Size: 5/16" UNC
• Becket Bolt Size: 3/8" UNC
• Side Plates: 316 Stainless steel, black powder coated
• Sheave Material: UV stabilized acetal polymer
• Clevis Pin: Grade 2205 stainless steel