Specification: 11/21/22/340 (Single motor) cc/rev Maximu pressure: 245/245/245/368 bar
HM4V series swash plate axial piston motor, It is a special motor for hydraulic excavator track walking. The movement is realized by rotating the shell of the containing gearbox, With two - speed switch and parking brake and other functions.
• It is a special motor for hydraulic excavator track walking. • High efficiency plunger motor and high precision reducer composite products. • Compact and capable of powerful walking.
Technical Specs
Specification
11
21
22
340
Max displacement (cc/rev)
11.3
20.7
22.1
337.2
Direction of rotation
bidirectional
Max rotation speed (rpm)
80
75
70
2660
Max service pressure (bar)
245
245
245
368
Maximum braking torque(N·m)
20
55.9
55.9
1400
Two-speed switch pilot pressure
Normal (bar)
33
33
33
39
Max (bar)
49
49
49
59
Shell pressure
Rated (bar)
3
3
3
2
Max (bar)
10
10
10
5
Deceleration ratio
36.96
36.51
52.73
-
Weight kg
16 Containing Gearbox
34 Containing Gearbox
44 Containing Gearbox
143
Oil viscosity mm2/s
7~1600, Best range:12~80
Oil Temperature ℃
-20~90
Oil Cleanliness
ISO 4406 20/18/15
Applications
It is a special motor for hydraulic excavator track walking.