Linde HMF Hydraulic Piston Motor

The Linde HMF Series 02 is a high-pressure fixed displacement axial piston motor featuring a compact swashplate design. Unlike bulky bent-axis motors, the HMF offers an incredibly short installation length while delivering extreme performance capabilities. With a nominal pressure rating of 420 bar and peak pressure of 500 bar, the HMF series is the premium choice for heavy-duty drive systems in construction, agricultural, and forestry machinery where space and power density are critical.

Key Features:

Series: HMF-02 (Series 02)
Sizes: 28, 35, 50, 75, 105, 135 cm³/rev
Max. Pressure: 420 bar (Continuous) / 500 bar (Peak)
Design: Axial Piston, Swashplate.

Product Overview The Linde HMF Piston Motor is engineered for the most demanding open and closed circuit applications. Its optimized swashplate construction allows for smooth low-speed characteristics and high starting torque. The HMF unit is designed to withstand high rotational speeds and extreme pressure loads, making it suitable for both propel drives and swing drives.

Why Choose Linde HMF Series?

Extreme Pressure Capability: Rated for 500 bar peak pressure, allowing for smaller motor sizing to achieve the same power output.
Compact Dimensions: The swashplate design results in a significantly shorter axial length compared to bent-axis motors, saving valuable installation space.
Smooth Operation: Excellent low-speed behavior with no “cogging,” ensuring precise control during startup and positioning.
Durability: 21° swash angle design minimizes piston side loads, ensuring a long service life under heavy duty cycles.

Common Applications:

Construction: Wheel Loaders, Pavers, Excavators.
Agriculture: Harvesters, Sprayers.
Mining: Drilling rigs, Tunneling machines.
Forestry: Forwarders, Skidders.

Specification	Value / Description
Product Type	Fixed Displacement Axial Piston Motor
Series	Series 02 (HMF-02)
Design	Swashplate Design
Displacement Sizes (Vg)	28: 28.6 cm³/rev35: 35.6 cm³/rev50: 50.9 cm³/rev75: 76.4 cm³/rev105: 107.4 cm³/rev135: 137.6 cm³/rev
Nominal Pressure	420 bar (6100 psi)
Peak Pressure	500 bar (7250 psi)
Max. Speed (n)	3200 – 5300 rpm (depending on size)
Max. Torque	Up to 1083 Nm (Size 135 @ 500 bar)
Mounting	SAE (Standard) or ISO Flange
Shaft	ANSI/SAE Splined Shaft (Standard)
Common Part Numbers	Model Code Structure: HMF-[Size]-02-[Rot]-[Shaft]-[Flange]HMF-28-02… (28cc)HMF-35-02… (35cc)HMF-50-02… (50cc)HMF-75-02… (75cc – Very Common)HMF-105-02… (105cc)HMF-135-02… (135cc)(Note: Linde parts often use 7-8 digit serial numbers like 2562543… for ordering. We cross-reference these.)