- Production of hydraulics
- Hydraulic power units
Hydraulic power units Machine building
Mechanical engineering enterprises work with equipment that performs thousands of working cycles under high loads every day. That is why a Hydraulic Power Unit must ensure stable pressure, precise control of actuating mechanisms, and uninterrupted operation of the entire production line.
The company «Motorimpex» manufactures Hydraulic Power Units for mechanical engineering with the ability to adapt to any customer needs. All equipment complies with Ukrainian and European quality standards. We offer individual solutions for each project, taking into account technical requirements and production specifics. Hydraulic Power Units are designed for stable and uninterrupted operation even under high loads. Power Unit Quotation Request Form
tank capacity: 15 / 30 l
flow rate: 4.5 / 9 l/min
engine power: 1.5 / 2.2 kW
relief valve: 150 / 120 bar
tank capacity: 30 / 40 L
flow rate: 16,2 / 40+20 l/min
engine power: 16 / 22 hp
relief valve: 100 / 170 bar
Why do enterprises choose custom Hydraulic Power Units?
Unlike standard models, a Hydraulic Power Unit developed for specific equipment ensures maximum operating efficiency. Let's consider the advantages of individual design:
- ◆Optimal working pressure
- ◆Required pump flow rate
- ◆Energy savings
- ◆High precision of the hydraulic drive operation
- ◆Possibility of further modernization
- ◆Optimal working cycle
- ◆Simple technical maintenance
- ◆Long service life of all components
Priority criteria for selecting a custom Hydraulic Power Unit
Role and features of using Hydraulic Power Units in mechanical engineering
Modern industrial hydraulics is used in practically every mechanical engineering enterprise. A Hydraulic Power Unit powers the hydraulic drive, maintains the required pressure in the system, and is responsible for the stable operation of all actuating mechanisms. Hydraulic Power Units are used for:
- ◆Metalworking machine tools
- ◆Turning centers
- ◆Milling machines
- ◆Sheet bending presses
- ◆Hydraulic presses
- ◆Automatic production lines
- ◆Profile bending equipment
- ◆Part clamping systems
- ◆Stationary manipulators
- ◆Special technological equipment

It is precisely a properly designed Hydraulic Power Unit that ensures the stability of the technological process, positioning accuracy, and the durability of hydraulic equipment.
Influence of working loads and operating modes on the design of the unit
Every production facility has its own requirements for the operation of the hydraulic system. Some machine tools operate in a continuous mode, while others perform short cycles with high peak loads. That is why there is no such thing as a universal Hydraulic Power Unit.
During design, engineers analyze:
- ◆Required working pressure (bar or MPa)
- ◆Pump flow rate (l/min)
- ◆Number of hydraulic cylinders
- ◆Speed of operation of actuating mechanisms
- ◆Equipment operating mode
- ◆Ambient temperature
- ◆Need for oil cooling and heating
- ◆Tank volume
- ◆Power supply features
After that, a schematic hydraulic diagram is developed, an engineering calculation is performed, and a questionnaire for the Hydraulic Power Unit is drawn up.
Depending on the technical specification, the following may be used:
- ◆Gear pumps
- ◆Axial piston pumps
- ◆Proportional hydraulics
- ◆Frequency control
- ◆Hydraulic accumulators
- ◆Electronic control systems
This approach makes it possible to manufacture custom Hydraulic Power Units for mechanical engineering that fully meet the requirements of a specific enterprise.
⏱ Working pressure ▾
➜ Pump flow rate ▾
🛢 Tank volume ▾
⚙ Pump type ▾
❄ Cooling type ▾
🔧 Filtration type ▾
Requirements for reliability and continuous operation of the hydraulic drive
In mechanical engineering, even a short-term equipment stoppage can lead to significant production losses. Therefore, all components of the Hydraulic Power Unit are selected taking into account service life, operating conditions, and the intensity of operation.
To ensure maximum reliability, the following are used:
- ◆Components from world manufacturers
- ◆Multi-level filtration of hydraulic oil
- ◆Safety valves
- ◆Pressure and temperature sensors
- ◆Emergency protection systems
- ◆Automatic oil level control
- ◆Diagnostic systems
Before being handed over to the customer, each Hydraulic Power Unit undergoes bench testing, during which the following are checked:
- ◆System tightness
- ◆Compliance of working pressure
- ◆Pump group performance
- ◆Operation of electrical equipment
- ◆Oil temperature regime
- ◆Stability of operation of all units
What does the customer get?
Stable equipment operation
Uninterrupted processes 24/7
Minimization of emergency stoppages
Protection against sudden breakdowns
Increased pump service life
Thanks to proper filtration
High precision of hydraulic drive operation
Smoothness and clarity of commands
Reduced operating costs
Savings on maintenance
A ready-to-operate system, tested at the factory
100% bench inspection
Advantages of Hydraulic Power Units from the Manufacturing Company «Motorimpex»
Each Hydraulic Power Unit is developed taking into account the real production conditions of the enterprise. Our engineers analyze the technical specification, equipment parameters, and operating modes in order to create a hydraulic system that will ensure stable operation, minimal downtime, and a long service life of all components.
Why do enterprises choose «Motorimpex»?
Own hydraulics design bureau
Development of complex systems in-house
Full production cycle in Ukraine
From calculation to manufacturing at our own facilities
Design according to the customer's technical specification
Precise adaptation to the needs of a specific production facility
World brands
Components from leading world manufacturers
Bench testing
100% quality control of every unit
Warranty and post-warranty service
Support throughout the entire operating period
Modernization of existing hydraulic systems
Upgrading equipment that is already in operation
Technical support
Engineer consultations throughout the entire service life
Own design and engineering bureau
Every Hydraulic Power Unit begins not with the assembly of equipment, but with a detailed analysis of the production process. The design bureau's engineers study the equipment characteristics, the required working pressure, the hydraulic drive performance, the features of the hydraulic cylinders, and the operating conditions.
During the design process, the following is performed:
- ◆Analysis of the technical specification
- ◆Development of a schematic hydraulic diagram
- ◆Selection of pump equipment
- ◆Performance calculation
- ◆Selection of the cooling system
- ◆Selection of filtration
- ◆Tank volume calculation
- ◆Design of the electrical control cabinet
That is why the manufacturing of Hydraulic Power Units according to the customer's technical specification makes it possible to obtain equipment that is maximally suited to a specific production facility.
How a «Motorimpex» Hydraulic Power Unit is born — from technical specification to finished diagram
Project implementation stages
Compliance with Ukrainian and European standards
The reliability of a Hydraulic Power Unit depends not only on the design, but also on the quality of the components, the correctness of assembly, and thorough testing. That is why compliance with technical requirements is monitored at every stage of production.
Before shipment, the following is checked:
Every Hydraulic Power Unit undergoes bench testing, which allows its operation to be verified even before installation at the enterprise.
Warranty and post-warranty service maintenance
After the equipment is put into operation, cooperation with the customer does not end. We provide technical support, service maintenance, and modernization of hydraulic systems throughout their entire service life. Service offerings include:
- ◆Technical diagnostics
- ◆Scheduled maintenance
- ◆Modernization of existing Hydraulic Power Units
- ◆Replacement of pumps and hydraulic components
- ◆Automation setup
- ◆Cleaning and replacement of filters
- ◆Oil replacement
- ◆Repair of hydraulic assemblies
If a Hydraulic Power Unit on a machine tool needs to be replaced, our engineers will assess the condition of the existing system, calculate the cost of a Hydraulic Power Unit for the machine tool, and propose a modern technical solution that takes into account the current needs of the production facility.
How to select and order a Hydraulic Power Unit for mechanical engineering
Proper selection of a Hydraulic Power Unit begins with an analysis of the equipment and the production process. This makes it possible to create a system that will operate as efficiently as possible for many years. To calculate a Hydraulic Power Unit, you need to provide:
- ◆Equipment type
- ◆Number of hydraulic cylinders
- ◆Required working pressure
- ◆Hydraulic system performance
- ◆Operating mode
- ◆Power supply parameters
- ◆Ambient temperature
- ◆Cooling system requirements
- ◆Installation features
What result does the customer get?
tank capacity: 15 / 30 l
flow rate: 4.5 / 9 l/min
engine power: 1.5 / 2.2 kW
relief valve: 150 / 120 bar
tank capacity: 30 / 40 L
flow rate: 16,2 / 40+20 l/min
engine power: 16 / 22 hp
relief valve: 100 / 170 bar
pulling force: 6.8 t
flow rate: 60 l/min
working pressure: 155 bar
rope: 25 m x Ø 12 mm
pulling force: 4.5 t
motor displacement: 50 cm3/rev
flow rate: 5 - 45 l/min
rope: 25 m x Ø 10 mm
for testing and servicing hydraulic cylinders, with pressure control and idle speed control
maximum working pressure: 400 bar
maximum displacement of section: 75.1 cm3/rev
DN 6, 10
maximum working pressure: 315 bar
maximum flow rate: 180 l/min
capacity: 0.075–4 l
maximum working pressure: 350 bar
G3/8
maximum working pressure: 350 bar
G1/8, М5х0,8, G1/4, G3/8, G1/2
scheme: 5/2, 5/3
max. number of cycles per sec.: 5
response time: 0,05 sec