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HMJC270 Reliable Hydraulic Motor with Enhanced Performance

HMJC270 two-speed motor has two preset displacements to choose from a wide range to suit specific application requirements. Control and selection is made via directional valve. The displacement can be easily changed while the motor is running. Double-sided main port design, more convenient for hydraulic motor control valve layout.
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Product Introduction

HMJC270 is a low-speed, high-torque hydraulic motor, typically composed of a motor body, end caps, bearings, springs, and other components. It employs a double-blade structure, enabling it to provide high torque output even at low speeds, making it suitable for various mechanical equipment requiring high torque and low-speed operation. Below is some detailed information about the HMJC270 hydraulic motor:

  • Structure and Principle: HMJC270 hydraulic motor uses a crank-connecting rod mechanism. The pressure of hydraulic oil causes the blades to rotate within the stator, thereby outputting torque. The gap between the blades and the stator is adjustable to adapt to different operating conditions.

  • Parameters and Performance: This motor features low-speed, high torque, smooth operation, low noise, and long lifespan.

  • Applications: HMJC270 hydraulic motor is suitable for various mechanical equipment requiring high torque and low speed operation, such as excavators, cranes, loaders, metallurgical equipment, and mining machinery. It can also be used with various hydraulic systems to achieve the conversion between mechanical and hydraulic transmission.

  • Use and Maintenance: When using HMJC270 hydraulic motor, attention should be paid to lubrication and cooling to ensure normal operation and extend its service life. Regular inspection of the motor's wear condition is also necessary, with timely replacement of worn parts.

In summary, HMJC270 hydraulic motor is a high-efficiency and reliable hydraulic transmission component with broad application prospects and market demand.

Technical Parameters

Motor type
Metric

Disp. Code

Disp.
mL/r

Spec.
Torque
N.m/bar

SPEED

PRESSURE

OUTPUT POWER

Rated.
Rpm

Max.
rpm

Rated.
bar

Max.
bar

Rated.
KW

Max.
KW

C270

280

4588

65.65

105

130

210

275

152

182

250

4097

57.33

115

145

210

275

145

174

220

3605

49.87

130

162

210

275

143

171

200

3277

44.81

140

175

210

275

138

166

180

2950

39.87

155

193

210

275

136

163

160

2622

35.02

175

218

210

275

135

162

140

2294

30.27

200

250

210

275

133

160

120

1966

25.63

230

288

210

275

130

156

100

1639

21.11

275

340

210

275

128

153

90

1557

19.81

290

360

210

275

126

152

80

1311

16.47

340

425

210

275

123

148

60

983

12.19

350

435

210

275

94

113

40

655

8.02

350

435

210

275

62

74

30

492

5.95

350

435

210

275

46

55

20

328

3.91

350

435

210

275

30

36

10

164

0

800

800

17

17

0

0

0

0

0

1000

1000

17

17

0

0

FAQ

FAQs
  • 1. Is the installation dimension of your HMJC270 hydraulic motor the same as the original motor from JP, and do any modifications need to be made during installation?
    Created with Sketch.
    形状 Created with Sketch.
    Our HMJC270 hydraulic motor has the same installation dimension as the original motor from JP, and it can be used without any modifications. As long as the model is confirmed to be the same, all the installation dimensions of the motor will be exactly the same as this.
  • 2. Is the Accessories of your HMJC270 hydraulic motor interchangeable and compatible with the original one from the JP?
    Created with Sketch.
    形状 Created with Sketch.
    The accessories of our HMJC270 hydraulic motor are same as the original from JP.
  • 3. After the new motor is installed, when lifting heavy objects or the cable is tensioned, the load will continuously and rapidly slide down or the cable will loosen,when the control valve handle is in the middle position. Is there a problem with the quality of the motor?
    Created with Sketch.
    形状 Created with Sketch.
    If it is a new motor, the motor rotates in the correct direction, and there is no occurrence of anchor slipping or uncontrollable speed during the trial operation,the load will continuously and rapidly slide down or the cable will loosen ,when the control valve handle is in the middle position,the possibilities mainly include the following:
    a.The balancing valve in the control valve group is contaminated and needs to be disassembled for inspection and cleaning;
    b.The motor and pipeline have air, and the operation of continuous multiple times of lifting and lowering under no-load condition is required to exhaust the air, to ensure the smooth and continuous oil supplement circuit at the motor inlet;
    c.The motor itself has quality problems, and the internal leakage is relatively serious. To determine whether the motor has quality problems, refer to “How to quickly determine if there is a fault with the motor or the control valve group?”
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