Ronstan Series 100 Core Block

The Series 100 Core Block is a single-sheave block designed for high load capacity and smooth operation. It features a universal aluminum head with 3-axis articulation and a durable construction suitable for demanding applications.

Features:

• High dynamic and static load capacity for reliable performance under heavy loads
• Ball bearings reduce side thrust and minimize friction during operation
• Durable aluminum alloy cheek plates with corrosion-resistant anodized finish
• Universal head allows 360 deg. rotation with lockable positions at 0 and 90 deg.
• Central hub serves as a becket take-off or tie-up point for versatile rigging
• Lightweight design with cut-away cheeks for easy cleaning and reduced weight
• Glass fiber reinforced nylon sheave ensures strength and smooth line handling
• Full-contact acetal bearings provide low friction and long-lasting durability

Specifications:

• Sheave Diameter: 100 mm (3 15/16")
• Breaking Load:
  • Non-Swiveling Models (RF104100, RF104108A, RF104110): 7500 kg (16535 lbs)
  • Swiveling Model (RF104140): 6000 kg (13200 lbs)
• Maximum Working Load:
  • Non-Swiveling Models (RF104100, RF104108A, RF104110): 3250 kg (7165 lbs)
  • Swiveling Model (RF104140): 3000 kg (6600 lbs)
• Maximum Rope Diameter: 18 mm (23/32")
• Weight: 900 g (31.7 oz)
• Pin Diameter: 10 mm (13/32")
• Head Post Material: Grade 2205 stainless steel
• Shackle Material: Grade 17-4PH stainless steel