Description
FTC Donut Rigging Pulley with Katuali Sling
A Hybrid Pulley and Friction Ring for Advanced Arborist Rigging
The FTC Donut Rigging Pulley is a groundbreaking hybrid that combines the strengths of a friction ring and a traditional pulley, giving arborists unmatched versatility for lifting, lowering and complex load management. Whether using the sheave for efficient movement or the central ring for controlled friction — or both simultaneously — the Donut is designed to handle dynamic, demanding rigging scenarios with ease.
Includes Katuali Sling in Multiple Sizes
Each Donut is supplied with a high‑quality Katuali Sling, available in four professional configurations:
- 16mm – 4m
- 16mm – 5m
- 18mm – 4m
- 18mm – 5m
This ensures safe, secure installation whether used as a primary anchor, redirect, or suspended within multi‑point rigging systems.
Superior Friction Control for Safer, Smoother Rigging
Friction is vital in dynamic rigging operations. The Donut provides controlled, predictable friction that:
- Reduces strain on the lowering device
- Improves handling for ground crews
- Prevents uncontrolled drops or abrupt movements
This enhanced control increases overall safety for climbers and teams working below.
Innovative Round Shape for Foolproof Setup
The Donut’s circular design limits incorrect positioning, reduces overhang risks and simplifies installation — even between two axes. Its symmetry allows multiple sling attachment points for precise alignment in complex rigging systems.
Versatile for Ground or Aerial Rigging
Lightweight yet incredibly strong, the Donut offers an excellent weight‑to‑WLL ratio, making it suitable for:
- Ground‑based redirects
- Tree‑mounted rigging blocks
- Dual‑rope load transfers
- High‑angle or multi‑anchor setups
It excels in both heavy‑duty and delicate operations.
Developed From Real Arborist Feedback
Reflecting the FTC TREE philosophy, the Donut is a robust, reliable tool designed to simplify rigging without reducing capability. With sheave function, friction control and dual‑rope support, it expands rigging possibilities while keeping operation straightforward.
Technical Specifications
Certification
- Standard Machinery Directive 2006/42/EC
Materials
- Inner ring & spacers: Stainless steel
- Sideplates & sheave: Aluminium
- Fastening rubbers: Polyester and rubber
Dimensions & Weight
- Weight: 1.6 kg (3.5 lb)
- Dimensions: 15.7 × 15.7 × 5 cm (6.2 × 6.2 × 2 in)
- Colours: Black and steel
Rope Compatibility
- 14 mm with splice
- 22 mm without splice
Strength Ratings
- Breaking Strength (sheave): 400 kN
- Breaking Strength (inner ring): 300 kN
- WLL (sheave): 80 kN
- WLL (inner ring): 60 kN
