Submersible Hydraulic Motors
High-Performance Electric Motors for
Hydraulic Power Units
Elevator Motors (EMCO) supplies ELMO submersible electric motors designed specifically for hydraulic elevator power units. These motors operate fully immersed in hydraulic oil, delivering quiet operation, efficient cooling, and consistent performance for screw pump-driven elevator systems.
Built in Italy with decades of engineering experience, ELMO motors are widely used in elevator applications where compact design, reliability, and long operating life are critical
Key Benefits
- Oil-Immersed Cooling: Submerged operation allows heat to dissipate directly into the hydraulic fluid, enhancing efficiency and reducing noise.
- High Load Resilience: Built for durability, these motors handle the high torque demands of lift start-ups and peak cycles. Their thermal and mechanical strength ensures stability in high-traffic environments.
- Seamless Pump Integration: The motor is designed for direct mounting to screw pump assemblies. This precise alignment reduces mechanical vibration and extends the operational life of the entire drive unit.
- Industrial Reliability: Featuring integrated thermal protection and corrosion resistance, these motors meet strict elevator safety standards. They are engineered for the rigorous demands of typical duty vertical transport.
- Optimized Energy Efficiency: Integration with VVVF drives or soft starters enables smooth acceleration and lower power consumption. This setup reduces electrical stress on the system while significantly improving ride quality.
- Oil-Immersed Cooling: Submerged operation allows heat to dissipate directly into the hydraulic fluid, enhancing efficiency and reducing noise.
- High Load Resilience: Built for durability, these motors handle the high torque demands of lift start-ups and peak cycles. Their thermal and mechanical strength ensures stability in high-traffic environments.
- Seamless Pump Integration: The motor is designed for direct mounting to screw pump assemblies. This precise alignment reduces mechanical vibration and extends the operational life of the entire drive unit.
- Industrial Reliability: Featuring integrated thermal protection and corrosion resistance, these motors meet strict elevator safety standards. They are engineered for the rigorous demands of typical duty vertical transport.
- Optimized Energy Efficiency: Integration with VVVF drives or soft starters enables smooth acceleration and lower power consumption. This setup reduces electrical stress on the system while significantly improving ride quality.
Typical Applications
- Hydraulic passenger and freight elevators
- Lift machine-room power units
- Screw pump hydraulic systems
- Industrial lifting platforms
- Custom hydraulic drive assemblies
Product Range – Selection Matrix
Power | 208 V | 230 V | 230/460 V | 575 V |
3.5 HP (2.6 kW) | - | - | - | |
5 HP (3.7 kW) | - | - | - | |
15 HP (11 kW) | - | |||
20 HP (15 kW) | ||||
25 HP (18.5 kW) | ||||
30 HP (22.1 kW) | ||||
40 HP (29 kW) | ||||
50 HP (37 kW) |
*Note: Other sizes are available on request.
Product Range – Selection Matrix

*Note: Other sizes are available on request.
System Compatibility
These motors are commonly paired with:
- Screw-type hydraulic pumps
- Gear pump systems
- Hydraulic valve manifolds
- Complete elevator power units
Technical Summary
- Output range: 2.6 kW to 37 kW
- Horsepower range: 3.5 HP to 50 HP
- Supply voltages: 230 V, 208 V,
230–460 V, 575 V - Duty type: S2 (30 min/60 min)
- Cooling method: Hydraulic oil immersion
- Installation: Tank-mounted submersible configuration
- Motor type: Three-phase induction design
Why Choose This Series
ELMO submersible motors are designed specifically for hydraulic elevator duty, combining compact construction, thermal stability, and long service life. Their oil-cooled design reduces system complexity while improving eficiency, reliability, and noise performance.