manual pulley

详情

Products description 1. Electric motor partial outer cover They are made of high strength aluminum system through compression casting formation. . Advatages:Solid and light . fast release heat . continuous use . enclosed structure . can be used in the chemical plants, electroplating factories, and other places. 2. Side kind braking This masterly structure ensure the hoist absolutly safty when the power off. And ensures it is safe when has excess load . Also it combine to the motor braking as the double brake system to strengthen security and durability. 3. Gear The gear is made of alloy steel and through the heat treatment 4. Antiphase protector Advatages: When power-supply wiring mistake, the control circuit is unable to move. 5. Hooks They are made by hot forging and heat treatment. 6. Chain It is made of FEC*0 ultra strong heat treatment alloy steel. Advatages: It is safely approximately when used in the rain water, the sea water, under the chemical and other bad conditions. 7. ISO: M4 /FEM :1AM Insulation grade: F 8. Protection class (hosit and push ): IP*4 9. Powder supply 3 phase, ******0v, *0HZ *0. Noise (single/ double speed): *1dB