Yale Lodestar XL Air Chain Hoist 额定载荷 2000 - 7500 kg Air Chain Hoists features continuous duty service for precise, infinitely variable speed and accurate load spotting. Ideal for use in hazardous areas where electricity is not an option. ? Capacities & Lift - Rated loads from 2 to 7 1/2 Tons.10-foot lifts are standard. Longer lifts are available. ? Speeds - 9 to 31 feet per minute (FPM) at 90 PSI air operating pressure. ? Controls - Pendant controls provide precise load spotting. ? Hook and lug suspension available. Lug suspension is for use with plain, geared and air motor drive trolleys. ? Motor - 6-vane air motor produces high, uniform torque for smooth, easy lifting. ? Spool Valve - Precision spool valves meter air for smooth starts. ? Brake - Air actuated motor brake for positive load control. ? Transmission Gears - Precision machined steel run in oil bath for longer quieter operation. ? Forged Ten-pocket Oblique-lay Liftwheel - For smooth chain operation, constant chain speed, and reduced chain wear. ? Overload Clutch - Protects hoist, operator, and supporting structures from damaging overloads. Clutch acts as upper and lower travel limits. ? Spark Resistant Models - For hazardous environments, includes copper plated hooks and lower bottom blocks, stainless steel hook latch, and plated load chain. ? Lifetime Warranty