ISC 2.2 Ton Spring-Lock Pulley Block with Orange Wheel | 5/8 in Rope, 2.2 T WLL

The ISC 2.2 ton spring-lock pulley block combines rugged aluminum alloy construction with precise machining to deliver reliable service in demanding rigging environments. The solid aluminum cheek plates and bushing are supported by stainless steel axles, creating a compact yet sturdy unit that handles dynamic loads with confidence. The orange wheel not only adds a bold visual cue for quick rope path identification but also aids operators in scanning the rig and maintaining smooth setup under pressure. This block is designed for rope access applications where a strong balance of weight, strength, and control matters, making it a versatile choice for many field scenarios.

Why this block stands out

Key design choices translate to practical advantages on the job site. The large 2.75 inch sheave minimizes rope bend, helping to reduce wear and preserve rope life during repeated lifts or pulls. With a rope capacity up to 5/8 inch, it supports a wide range of common rigging lines while keeping overall weight manageable at about 3.8 pounds. The working load limit is rated at 2.2 tons, making it suitable for substantial loads when used as part of a rigging system. The broad cheek plates protect the running lines during movement, contributing to safer and more predictable operation in active environments.

What you get in practice

• High strength-to-weight ratio with quick-twist rope access for faster setups
• Broad cheek plates and a robust wheel design to protect lines and improve rope routing
• Orange wheel for immediate visual identification on busy rigs
• Solid aluminum alloy components and stainless axles for durability in tough conditions

Durability and field performance

Constructed to withstand challenging environments, the block has diligent aluminum alloy components and stainless steel axles chosen for long-term use. The design emphasizes reliable operation across cycles, with no reported fracture concerns during the initial production period. This combination supports consistent performance under load in rope access, rescue, or industrial rigging tasks.

Technical snapshot

• Sheave diameter: 2.75 in
• Rope capacity: up to 5/8 in
• Weight: approximately 3.8 lbs
• Working load limit: 2.2 tons
• Rope maximum diameter: 14 mm

Note that field personnel should review the full spec sheet for installation guidelines and compatible rope types. The orange wheel serves as a quick reference to confirm the correct block is in use, helping teams move efficiently without compromising safety or control during complex rigging sequences.