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Hollow Shaft Electric Motors

Hollow Shaft Electric Motors for Hydraulic Pump

Specifically designed to drive hydraulic pumps, the hollow shaft electric motor plays a crucial role in industrial applications, particularly in hydraulic systems requiring precise control and powerful output.

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Features
  • Internal shaft design: The hollow shaft motor features an internal shaft structure, allowing it to directly connect with the hydraulic pump without the need for additional couplings. This simplifies installation, saves space, and reduces both noise and heat.
  • High-precision fit: The mating surfaces of the motor and pump are machined with high precision, ensuring coaxiality. This not only improves efficiency but also reduces maintenance requirements.
  • Simple & efficient structure: Optimized specifically for hydraulic pumps, its simple design ensures high operational efficiency, low noise, and suitability for long-term stable operation.
Can hydraulic motor torque be adjusted?

Yes, torque can be adjusted by varying the system pressure or by using motors with adjustable displacement. Your dealer can provide adjustable displacement motors and recommend pressure control valves or regulators to achieve the desired performance.

HSW Horizontal Electric Motor
Inquiry
Unit: mm
4P 6P Frame Phase Image A AA AB AC AD B BB C H HA HD K L Net weight (kg)
1/2 1/4 80 Three phase Image 1 125 35 155 175 138 100 130 51 80 10 170 10 230 13
1 1/2 80 Three phase 125 35 155 175 138 100 130 53.5 80 10 170 10 235 15.5
2 1 90L Three phase 140 40 175 196 147 125 156 52 90 11 190 12 270 23.5
3 2 100L Three phase Image 2 160 40 196 219 162 140 177 65 100 12 210 12 303 31.5
5 3 112M Three phase 190 40 228 235 164 140 172 57.5 112 13 230 12 290 38.5
71/2 5 132S Three phase 216 45 250 268 191 140 175 77 132 16 266 12 345 60
10 71/2 132M Three phase 216 45 250 268 191 178 213 75 132 16 266 12 378 70
15 10 160M Three phase Image 3 254 50 300 318 253 210 250 87 160 18 320 14 479 115
20 15 160L Three phase 254 50 300 318 253 254 300 87 160 18 320 14 523 140
25 30 20 180MC Three phase 279 85 356 354 303 241 300 105 180 24 360 15 547 180/220
40 2530 180LC Three phase 279 85 356 354 303 279 330 105 180 24 360 15 585 240
1/2 80 Single phase Image 1 125 35 155 175 138 100 130 53.5 80 10 170 10 265 15
1 90L Single phase 140 40 175 196 155 125 157 52 90 12 190 10 290 24
2 90L Single phase 140 40 175 196 155 125 157 64 100 12 190 10 300 28
3 112M Single phase Image 1 190 45 228 228 174 140 175 73.5 112 12 230 12 385 425
5 112M Single phase 190 45 224 245 185 140 175 95 112 14 230 12 420 48
HSL Horizontal Electric Motor
HSL Horizontal Electric Motor (Unit: mm)
Inquiry
4P 6P Frame Phase AC AD L LA M N P S T Net weight (kg)
1 1/2 80 Three phase 177 139 248 10 180 130 205 12 12 16.5
1 - 90 Single phase 195 154 280 10 200 130 230 12 10 24
2 1 90 Three phase 195 148 258 10 200 130 230 12 10 24
2 - 90 Single phase 196 155 306 10 200 130 230 12 10 30
3 2 112 Three phase 230 166 285 11 215 180 250 14 9 32
7.5 5 132 Three phase 268 195 345 13.5 265 230 300 15 5 61
10 7.5 132 Three phase 268 195 380 13.5 265 230 300 15 5 71
HSL Vertical Electric Motor
HSL Vertical Electric Motor (Unit: mm)
Inquiry
4P 6P Frame Phase AC AD L LA M N P S T Net weight (kg)
1/2 1/4 71 Three phase 157 130 257 11 130 110 160 11 - 12.5
1 1/2 80 Three phase 177 135 282 12 165 130 200 12 13 17
3 - 112 Single phase 230 163 335 12 215 180 250 15 4 42.5
5 3 112 Three phase 230 163 318 10 215 180 250 15 4 40
15 10 160 Three phase 318 250 509 20 300 250 350 19 5 106
20 15 160 Three phase 318 250 553 20 300 250 350 19 5 130
Applications
  • Widespread application: Widely used as a power source in hydraulic systems across various fields, including automotive, construction machinery, machine tools, mining, woodworking, cold presses, punching machines, and agricultural machinery.
  • Hydraulic system drive: In the boom joints of construction machinery like excavators and loaders, although hydraulic cylinders are the final actuators, their power source comes from a hydraulic pump driven by a hollow shaft electric motor.
  • Precision control applications: CNC hydraulic presses utilize servo motors for precise control, making them suitable for jig pressing in the motor, automotive parts, home appliance, and electronics industries, as well as for constant pressure systems and testing systems.
  • Manufacturing pressing & forming: The hollow shaft electric motor provides stable power for the pressing, forming, shallow drawing, shaping, and press fitting of metal or non-metal parts in manufacturing.
  • Integration with hydraulic systems: The combination of a hollow shaft electric motor and a hydraulic pump is a critical component in modern industrial automation. They convert electrical energy into hydraulic energy to control and drive various mechanical equipment. This combination enables broad force and speed control, adapting to complex working environments and process requirements, making it an indispensable part of heavy industry and precision manufacturing.
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