Hydraulic Elevator Power Unit | Hidroman
Hydraulic Elevator Power Unit | Hidroman
Hydraulic Elevator Power Unit | Hidroman
Hydraulic Power Units for Elevator Systems
In hydraulic elevator systems, ride comfort, operating noise, energy consumption, and reliable operation are strongly influenced by the power unit design. Hidroman hydraulic elevator power units combine the pump, motor, oil reservoir, and valve assembly required to generate and control hydraulic power for elevator applications.
Hidroman's electronically controlled power unit solutions are designed to accommodate changes in oil temperature and load, help reduce travel time, and support increased lowering speed under suitable system conditions.
The appropriate configuration depends on the elevator's load, cylinder specifications, required pressure and flow, motor power, duty cycle, installation space, and applicable safety requirements.
What Is a Hydraulic Elevator Power Unit?
A hydraulic elevator power unit generates and controls the hydraulic energy required for elevator movement. Its main components typically include an electric motor, hydraulic pump, oil reservoir, and valve assembly. Additional control and safety components can be included according to project requirements.
During lifting, the pump pressurizes hydraulic oil and directs it toward the cylinder. During lowering, the valve assembly controls the return flow to allow the elevator to descend in a controlled manner.
Correct sizing requires consideration of operating pressure, flow rate, motor power, load capacity, travel speed, duty cycle, and installation conditions.
Key Features of Hidroman Hydraulic Elevator Power Units
Electronic control
Electronic control helps the system respond to changing operating conditions. The Hidroman product page identifies benefits such as tolerance to oil-temperature variations, compensation for changes in load and temperature, and reduced travel time.
Low-noise operation and ride comfort
Mechanical pump units designed for elevator applications aim to provide low operating noise and comfortable travel. Pump placement and vibration-isolating rubber mounts support the unit's operating performance.
Compact design and optimized oil volume
The compact layout and pump arrangement are designed to optimize the amount of hydraulic oil used for the application. Installation space and maintenance access are also important design considerations.
Modular valve assembly
The modular valve block is designed for convenient access during maintenance. Depending on the configuration, the valve assembly can be mounted on either the right or left side of the reservoir, providing flexibility during installation planning.
Manual pump for emergency operation
The product page lists an integrated hand pump intended to help move the elevator upward in emergency situations. Emergency functions must be evaluated in accordance with the system design and applicable safety requirements.
Hydraulic Elevator Power Unit Specifications
| Specification | Information listed by Hidroman |
|---|---|
| Product group | Hydraulic elevator power units |
| Control | Electronically controlled options |
| Pressure range | Options up to 45 bar |
| Flow range | 8–300 L/min |
| Power range | 1.5–29.4 kW |
| Pump mounting | Vibration-isolating rubber mounts |
| Valve assembly | Modular design |
| Installation | Right- or left-side reservoir mounting, depending on configuration |
| Manual operation | Integrated hand pump option |
Important: The pressure, flow, and power ranges above describe the options listed on the product page. They do not mean that every unit operates at all listed values simultaneously. The final configuration must be confirmed against the application requirements and quotation.
Hydraulic Elevator Power Unit Accessories
Standard accessories
The Hidroman product page lists the following standard accessories:
Pulsation damper
High-pressure relief valve
High-pressure switch
Low-pressure switch
Pressure gauge
Hand pump
PTC high-temperature monitoring (thermistor)
Optional accessories
Depending on the application and selected configuration, the following options may be available:
Emergency lowering valve
Heater
Thermostat
Oil level indicator
Oil level control
Leveling unit
Soft starter
Oil cooler
Optional equipment
Electronic soft starter
Additional drive group for automatic leveling
Confirm the final accessory scope during quotation, as availability and inclusion depend on the selected unit configuration.
Why Use an Electronic Soft Starter?
Managing motor starting current and voltage drop is an important consideration in hydraulic elevator drives.
Hidroman's product description identifies electronic soft starters as an option for elevators requiring higher-power drive motors. Star-delta starting may behave differently with hydraulic elevator motors operating in oil than it does with conventional industrial motors. The motor, power supply, and control system should therefore be evaluated together.
When properly selected, an electronic soft starter can help control motor startup and reduce some of the current transients associated with contactor-based arrangements. The suitable solution depends on motor characteristics, electrical supply, and elevator control requirements.
How to Select a Hydraulic Elevator Power Unit
The following information helps determine the appropriate power unit:
Load capacity and cylinder details: Required load, cylinder dimensions, and system geometry.
Operating pressure: Pressure required by the cylinder and hydraulic circuit.
Required flow rate: Desired lifting speed and pump capacity.
Motor power and electrical supply: Motor and control configuration suitable for the project.
Reservoir capacity: System volume, duty cycle, and thermal requirements.
Installation space: Unit dimensions, valve orientation, and maintenance access.
Control and safety functions: Pressure control, leveling, emergency lowering, and applicable safety requirements.
Operating conditions: Ambient temperature, operating frequency, and noise requirements.
The power unit, valve assembly, and control system should be assessed as a complete system. Final design and selection must account for project specifications and applicable elevator safety regulations.
Frequently Asked Questions
What does a hydraulic elevator power unit do?
It generates the hydraulic power needed to lift the elevator and controls oil flow through the valve assembly to manage system movement.
What flow and power ranges are listed for Hidroman elevator units?
The Hidroman product page lists flow options from 8 to 300 L/min and power options from 1.5 to 29.4 kW. The appropriate configuration depends on the required operating conditions.
What pressure range is available?
The current product page lists options up to 45 bar. Confirm the required operating pressure and selected unit specifications during technical review.
Which accessories are available?
Listed standard accessories include a pulsation damper, pressure relief valve, pressure switches, pressure gauge, hand pump, and PTC temperature monitoring. Optional accessories include an emergency lowering valve, heater, thermostat, oil level indicators and controls, leveling unit, soft starter, and oil cooler.
Does every hydraulic elevator require a soft starter?
No. The requirement depends on motor power, starting current, electrical supply, and the control system. The selection should be based on the specific project.
How is a hydraulic elevator power unit sized?
Sizing takes into account load capacity, cylinder specifications, required pressure and flow, travel speed, duty cycle, and installation constraints.
Hydraulic Elevator Power Solutions from Hidroman
Whether you are developing a new elevator system or upgrading an existing installation, selecting the right power unit starts with a clear understanding of the operating requirements and installation conditions.
Contact Hidroman to discuss hydraulic elevator power unit configurations, accessories, and technical requirements for your project.