Mini CHAIN ??crane Products 1) Electric crane use: two brake systems: (1) Motor brake (2) mechanical brake carrying four safety devices: (1) motor overload protection (2) electric limit switch (3) Emergency stop (4) overload slip clutch 2) rigid aluminum body structure, provide lightweight, compact and has a short suspension from the 3) high tensile steel bearing CHAIN, hot-dip galvanized and resistant to abrasion. 4) All of the gear and pinion axis is made of high quality alloy steel, has a very good surface hardness, and ends with an anti-friction ball bearings for support, the gear is running in a sealed oil bath. Uses: Suitable for engineering hanging factory hoist operations, civil hydropower pipe installation, storage access to goods, where the lifting / Ascension / drag ... and other operations are suitable for wide range of uses. Small size, light weight, easy to obtain single-phase power supply, high effort and aging. ... And other major characteristics MODE DU-901 CAPACITY (KG) 500 STANDARD LIFT (M) 3 Power (Voltage) 100V-120V / 200V-240V CYCLE (HZ) 50/60 MOTOR POWER (Kw) 1.3 LIFTING SPEED (M / MIN. ) 5/6 CHAIN ??DIA (mm) 6.3 Features:? motor system: 1. Using high-efficiency industrial and series excited brushless motor 2. Both single-phase voltage selection Configuration 3. enameled heat levels up to 180 degrees. Designed for a long time lifting specially designed. Brake System: 1. Using patented mechanical ratchet gear brakes and brake controller short-circuit resistance, Shuangsha vehicle systems. 2. Using high friction coefficient oiled copper disc type brakes? Completely without adjustment. 3. The power failure or malfunction immediately brake brake, safety marks, high life. Electronic control system: 1. direct control, save tedious line, easy maintenance, low failure rate, safe and stable. 2. The control switch and power cord adopt separate quick connector, easy to carry, no wire entanglement trouble. Chain Size: 1. Japan imported original FEC chain manufacturing firms are manufacturing. 2.80 grade alloy steel 3-fold safety factor. Gear system: 1. Use the best efficiency of the transmission plus planetary reduction gear. 2. The planetary gear set using two steel heat treatment operation idler, sharing power, life of more than 2 times the general transmission type. Infrastructure: 1. Using 4.5mm high-strength steel supporting crane structure. 2. Use the power of paint, rust resistance. Suitable for harsh environments -15 to + 65 degrees. Housing parts: 1. motor body is one piece aluminum die-casting, toughness strong, picking computer CNC machining, high precision, smooth running rotor. 2. The gear box of aluminum alloy die-casting body shape, toughness strong, the computer CNC machining, high precision, low noise. 3. Fully sealed waterproof factor of up to 65 IP. 4. The use of automotive-grade powder coating, appearance, compact and lightweight structure, effectively increasing travel up and down up and down a job rose hook Group: 1. Use steel hot forging molding, high strength safety factor of four times.