The MD1H High-Slip Motor is a high-performance three-phase asynchronous motor produced by Dalian Electric Motor Works. It serves as an upgraded replacement for the YH series high-slip motors. 0411-66368522 Below is a detailed introduction:

• Technical Parameters
  • Power Rating: 0.55-315kW, offering a wide power range to support high-power equipment.
  • Center Height: 80-355mm, with a larger frame size to accommodate high-power models.
  • Slip Range: 5%-6%, consistent with the YH series, ensuring compatibility with existing equipment.
  • Protection Class: Default IP54/IP55, with optimized protection performance for harsh workshop environments.
  • Insulation Class: Class F, withstanding temperatures up to 155°C, providing enhanced overload and high-temperature resistance.
• Product Features
  • High Overload Capacity: Locked-rotor torque can reach 2.5-3.0 times the rated torque. When the load suddenly increases, the speed drops rapidly without stalling, effectively cushioning the impact of shock loads on equipment.
  • Low Locked-Rotor Current: Through optimized rotor resistance design, the locked-rotor current is only 4-6 times the rated current, minimizing grid impact during startup and eliminating the need for additional large-capacity transformers or soft starters.
  • Resistance to Frequent Start-Stop: Featuring a reinforced rotor cooling structure and fatigue-resistant insulation materials, it can withstand 30-50 frequent start-stop cycles per hour. Compared to the YH series, the upgraded rotor bar material further enhances fatigue resistance, extending the lifespan by over 30%.
  • Efficiency Improvement: Through optimized electromagnetic design, such as reduced iron and copper losses, the MD1H series achieves 2%-3% higher efficiency than the YH series, saving energy even during intermittent operation.
• Applicable Scenarios: Suitable for medium-heavy-duty impact equipment such as medium forging presses, medium presses, shearing machines, and small-to-medium rolling mills. For example, a 500-ton hydraulic press in an automotive parts factory previously used YH series motors, which required regular maintenance due to frequent start-stop cycles. After switching to the MD1H series, the motor demonstrated improved resistance to frequent start-stop operations, running continuously for 3 years without failure, while also achieving higher efficiency and energy savings.

Main products of Dalian No.2 Electric Motor Works: YP2 series variable frequency speed regulation three-phase asynchronous motors, YZR series wound rotor metallurgical and hoisting motors, JZR series metallurgical and hoisting motors, YGP series roller table variable frequency motors, YZP metallurgical and hoisting variable frequency motors, YEJ series electromagnetic braking three-phase asynchronous motors, YH high-slip three-phase asynchronous motors, YSPA series variable frequency motors, YTSP series variable frequency motors, YP2E metallurgical and hoisting variable frequency braking motors, YZRW eddy current braking wound rotor metallurgical and hoisting motors, WZ eddy current brakes, Y series three-phase asynchronous motors, Y2 series three-phase asynchronous motors, 1D series three-phase asynchronous motors, YVP series variable frequency motors, YZ series metallurgical and hoisting motors, YKK high-voltage motors, etc.

Dalian Lida Electric Motor Co., Ltd.
(Formerly Dalian No.2 Electric Motor Works)
0411-66368522
dlldmotor@163.com
http://www.dlldmotor.com.cn