Features * Standard working level 1Am, CPE (F) 20-8, CPE (F) 30-5and CPE (F) * 40-4 and other models for the 1Bm * gearbox does not require additional lubrication maintenance * Electrical Standard Thermal overheating protection * heavy duty squirrel cage motor motors working brake system uses a more secure structure often closed, and only in case of power through the electromagnetic coil spring action before they can open the brake pressure. Even in the case of sudden power failure can not happen to ensure that heavy objects fall freely. * Electrical protection rating of IP54, F class insulation levels * Control the protection class IP65 * handle the power supply to a standard 380V-3-50Hz * 5 chain sprocket lifting nest design, with good wear resistance, high hardness made of steel, with the standard configuration used in conjunction with lifting chain ensures smooth and accurate lifting action. * The use of oil lubrication of the planetary gear mechanism to work, especially the standard configuration of the smooth * Hard shell with lifting chain and galvanized surface, and the gourd with the perfect body can ensure smooth operation and accurate operation. * The material of the upper and lower hook of the anti-aging, high toughness steel, used in the event of overload distortion occurs when the first and will not suddenly break, to ensure the safety of users.