Hooks: Drop‐forged and heat‐treated alloy steel with safety latches or heavy duty catches
Load Chain: High‐tensile alloy steel; often zinc or baked finish for corrosion resistance
Bearings: Sealed or needle‐roller bearings support load wheel & side plates for smooth, low‐effort lifting
Gear & Brake Mechanism
Gear System: Designed to minimize effort; internal gears are often CNC‐machined and hardened for durability
Brake: Weston-type automatic brake with twin pawls for reliable load holding