EPMM Hydraulic Motor
The EPMM hydraulic motor from LöSi® stands for compact design, precise gerotor technology and high power density – ideal for demanding hydraulic applications. This motor series is characterised by a displacement of 8.2 to 50 cm³/rev and integrated valve control in the output shaft. Whether for conveyor belts, construction machinery or machine tools, the EPMM hydraulic motor delivers reliable rotary motion even under heavy loads. Since 1982, LöSi Hydraulik has stood for quality, fast availability and expert advice in the field of hydraulic motors. Don't compromise – choose the EPMM hydraulic motor for your hydraulic solution.
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What is an EPMM Hydraulic Motor?
The EPMM® hydraulic motor is the smallest design of our gerotor motor series. Technically, it is characterized by a special feature: The valving is located directly in the shaft. Here, the spool valve functions as an integrated part of the output shaft.
The operating principle is as ingenious as it is compact: The cardan shaft transmits the mechanical energy from the gear set to the output shaft and simultaneously takes over the control of the oil flow. This design enables extremely high power density in the smallest of spaces – ideal for applications where every millimeter counts.
Advantages of the EPMM Series (LL, FR & RS)
In addition to the standard version, the EPMM® series offers specialized variants that solve technical problems in practice. We offer you motors that are tailored exactly to your hydraulic challenges:
- Series "LL" (Low Leakage): These motors are optimized for lowest leakage. They significantly reduce volumetric losses and are perfectly suitable for hydraulic systems where motors are connected in series.
- Series "FR" (Free Running): Mechanical resistance is minimized by increased clearances between the rotating parts. The result: Better lubrication, longer service life at high speeds (> 300 rpm), and optimized freewheeling.
- Option "RS" (Speed Sensor): For digital monitoring, this sensor delivers a precise output signal proportional to the speed – essential for modern control technology.
Typical Areas of Application for the EPMM Hydraulic Motor
Due to the compact design and the availability of various shaft and flange types (e.g., oval flange option F or standard without flange), EPMM orbital motors are at home in many industries:
- Industry: Textile machines, machine tools, and fans.
- Mobile Applications: Construction machinery and mining technology.
- Logistics: Drives for conveyor belts.
Variants, Selection & Technical Data
For the motor to work durably, the operating parameters must be correct. The EPMM motors cover a displacement of 8.2 to 50 cm³/rev. Use the following key technical data for your design:
Performance data at a glance:
- Max. Speed: Up to 2450 rpm
- Max. Torque: Up to 8.8 daNm
- Pressure Range: Max. pressure drop up to 140 bar
- Oil Flow: Up to 25 l/min
- Hydraulic Oil: HLP (DIN 51524) or HM (ISO 6743/4)
- Viscosity & Filter: Optimal 20-75 mm²/s with ISO code 20/16 (min. 25 µm)
Important note on shaft load:
The permissible radial shaft load must be calculated and depends on the distance (L) of the load application (Formula: Prad = 13040 / (61.5 + L) * ...). If the limit values are exceeded, we strongly recommend the use of a flexible coupling to prevent damage to the shaft.
Select & Order EPMM Hydraulic Motor Now
The order code of our EPMM motors allows for a modular configuration. You can individually define flange type, shaft shape (straight/splined), connection position (side/rear), and special equipment such as integrated pressure relief valves.
Are you unsure about breaking down the code or calculating the radial load?
Rely on our expertise. Select your model in the shop now or contact us for a custom design!
