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Hydraulic Power Units for Hydraulic Tools and Equipment

Two-stage hydraulic power units with manual control

Two-Stage Hydraulic Power Units with Manual Control
  • Rated tank capacity: 5 — 100 L
  • Rated flow
    • First stage: 3 — 25 L/min
    • Second stage: 0.2 — 4 L/min
  • Rated pressure
    • First stage: 6 — 16 MPa
    • Second stage: 6 — 70 MPa
  • Electric motor power: 0.25 — 5.0 kW

These units are designed to supply hydraulic power to high-pressure industrial hydraulic tools with single-acting or double-acting operation. 

They are equipped with a two-stage pump, which helps to reduce operation time.

The standard configuration includes a pressure gauge, relief valve, return-line filter, temperature sensor, and fluid level indicator.

Two-stage hydraulic power units deliver increased flow at low pressure, which boosts the no-load speed of the hydraulic tool and reduces the overall cycle time.

Single-stage hydraulic power units with electric control

Single-Stage Hydraulic Power Units with Electric Control
  • Rated tank capacity: 5 — 100 L
  • Rated flow: 0.2 — 10 L/min
  • Electric motor power: 0.25 — 11 kW
  • Rated operating pressure: 70 MPa

These units are designed to supply hydraulic power to high-pressure industrial hydraulic tools with single-acting or double-acting operation. Here are some of the characteristics:

Control: The hydraulic flow is remotely controlled using a handheld pushbutton pendant or a remote foot pedal. Depending on the type of directional control valve, the unit can pressurize the actuator, release pressure, or block the return/pressure lines. Upon request, it can be equipped with a wireless control module (radio remote).

Pump: The single-stage pump delivers working fluid to the actuator at a fixed flow rate, regardless of the load.

Configuration: In the standard configuration, the units are equipped with a pressure gauge, a relief valve (preset to 70 ± 1.5 MPa), a return-line filter, a temperature sensor, and a pushbutton control pendant.

Testing: Hydraulic power units undergo testing before shipment to verify compliance with the technical parameters specified in the product certificate. They are supplied fully filled with oil and complete with a spare parts kit.

These units ensure reliable and efficient operation of hydraulic systems.

Single-stage hydraulic power units are well suited for operations such as pressure testing. Their ability to maintain a constant oil flow rate, regardless of pressure, ensures reliable and efficient performance.

Two-stage hydraulic power units with electric control

Two-Stage Hydraulic Power Units with Electric Control
  • Rated tank capacity: 5 — 100 L
  • Rated flow
    • First stage: 3 — 25 L/min
    • Second stage: 0.2 — 4 L/min
  • Rated pressure
    • First stage: 6 — 16 MPa
    • Second stage: 6 — 70 MPa
  • Electric motor power: 0.25 — 5.0 kW

These units are designed to supply hydraulic power to high-pressure industrial hydraulic tools with single-acting or double-acting operation.

The hydraulic flow is remotely controlled using a handheld pushbutton pendant or a remote foot pedal. Depending on the type of directional control valve, the unit can pressurize the actuator, release pressure, or block the return/pressure lines.

These units are equipped with a two-stage pump, which helps to reduce operation time.

Standard configuration includes:

  • Pressure gauge;
  • Relief valve;
  • Return-line filter;
  • Temperature sensor;
  • Fluid level indicator.

Hydraulic power units undergo testing before shipment to verify compliance with the technical parameters specified in the product certificate. They are supplied fully filled with oil and complete with a spare parts kit.

Two-stage oil delivery

Enabled by the two-stage pump, these units are able to deliver a higher fluid flow rate. This accelerates the extension or return of the tool’s rod during its no-load travel, which reduces the overall operation time.

Engine-driven hydraulic power units (gasoline or diesel) with manual or electrical control

Gasoline Engine-Driven Hydraulic Power Units
  • Rated tank capacity: 10 — 100 L
  • Rated flow: 2 — 3 L/min
  • Gasoline engine power: 6.0 hp
  • Rated operating pressure: 70 MPa

These units are designed to supply hydraulic power to high-pressure industrial hydraulic tools in field conditions where no electrical power sources are available.

Here are some of the characteristics:

  1. The hydraulic flow is manually controlled using the lever of the directional control valve mounted on the power unit. This allows for precise control over the fluid supply to the hydraulic tools. Remote control is optionally available via a handheld pushbutton pendant or a foot pedal.
  2. The rated hydraulic fluid flow is achieved when the gasoline engine shaft rotates at 3000 rpm.
  3. Operating temperature ranges:
    • Working fluid temperature: from -10°C to +60°C.
    • Ambient temperature: from -20°C to +40°C.

These units ensure reliable operation in conditions where access to electrical power is limited or unavailable.

Pneumatic-driven hydraulic power units

Pneumatic-driven hydraulic power units
  • Rated tank capacity: 5 — 60 L
  • Rated flow at 70 MPa: 0.5 — 2 L/min
  • Pneumatic motor power: 3.6 kW at 2500 rpm
  • Rated operating pressure: 70 MPa

Pneumatic-driven hydraulic power units convert pneumatic energy into hydraulic power and supply high-pressure industrial hydraulic tools.

Here are some of the characteristics:

  1. The hydraulic flow is manually controlled using the lever of the directional control valve mounted on the power unit. This allows for precise control over the fluid supply to the hydraulic tools.
  2. Upon request, the hydraulic power units can be equipped with a pneumatically actuated directional control valve featuring a remote control pendant. This is convenient for operators working at a distance from the unit.
  3. Pneumatic system requirements:
    • Air inlet pressure: 0.03-1.6 MPa.
    • Operating pressure: 0.7 MPa maximum.
    • Air consumption at maximum motor speed: 4.3 m³/min.
  4. The rated hydraulic fluid flow is achieved at a pneumatic motor speed of 2500 rpm.
  5. Standard configuration includes:
    • Pressure gauge;
    • Relief valve;
    • Return-line filter;
    • Air preparation unit.

Multi-station hydraulic power units with manual or electric control

Multi-station hydraulic power units
  • Rated tank capacity: 20 — 100 L
  • Rated flow: 2 — 5 L/min
  • Electric motor power: 2.2 — 7.5 kW
  • Rated operating pressure: 70 MPa

These units are designed to supply hydraulic power to high-pressure industrial hydraulic tools with single-acting or double-acting operation.

The units are equipped with two directional control valves, which allow for simultaneous or alternating control of two or more actuators. This provides flexibility when working with various tools.

Standard configuration includes:

  • Vibration-resistant pressure gauge: Monitors system pressure. The design ensures measurement reliability even under vibration.
  • Relief valves on each line: They ensure safety by automatically opening when the preset pressure is exceeded (set to 70 ± 1.5 MPa).
  • Return-line filter: Removes contaminants from the oil.
  • Temperature sensor: Shuts down the unit in case of oil overheating.
  • Hydraulic power units are equipped with multiple directional control valves. This allows multiple hydraulic cylinders or other actuators to be operated from a single power unit.
  • Temperature ranges:
    • Working fluid temperature: from -10°C to +60°C.
    • Ambient temperature: from -40°C to +40°C.
  • Modifications:
    • Upon special request, the power units can be supplied with three or more directional control valves and higher capacity pumps. This enables the power units to be adapted to specific requirements and applications.

Multi-flow hydraulic power units

Multi-flow hydraulic power units
  • Rated tank capacity: 20 — 60 L
  • Rated flow: 2 х 1 L/min, 2 х 2 L/min
  • Electric motor power: 7.5 kW
  • Rated operating pressure: 70 MPa

Multi-flow high-pressure hydraulic power units provide hydraulic power to industrial hydraulic tools.

Features:

  1. Hydraulic power units are equipped with two-port axial piston pumps, which ensure independent delivery of the working fluid.
  2. Multiple manually operated directional control valves are used for flow control. This allows simultaneous or alternating operation of several actuators.
  3. In the standard configuration, the hydraulic power units are equipped with a vibration-resistant pressure gauge, relief valves on each line, a return-line filter, and a temperature sensor with an oil level indicator.

Operating temperature ranges:

  • Working fluid temperature: from -10°C to +60°C.
  • Ambient temperature: from -40°C to +40°C.

Directional control valve functions:

  • Depending on the application and customer requirements, the hydraulic power units can be equipped with directional control valves featuring various hydraulic circuits and, consequently, different functions.

Explosion-proof hydraulic power units

Explosion-proof hydraulic power units
  • Rated tank capacity: 10 — 100 L
  • Rated flow: 2 — 10 L/min
  • Electric motor power: 2.2 — 11 kW
  • Rated operating pressure: 70 MPa

Explosion-proof high-pressure hydraulic power units are designed to supply hydraulic power to single-acting and double-acting high-pressure industrial hydraulic tools in fire- and explosion-hazardous atmosphere.

Characteristics:

  • Hydraulic power units are equipped with an explosion-proof three-phase asynchronous electric motor.
  • The hydraulic flow is manually controlled using the lever of the directional control valve mounted on the power unit or via a remote control pendant.
  • Equipment:
    • Pressure gauge: For monitoring system pressure.
    • Relief valve: Ensures system safety by preventing overpressure.
    • Return-line filter: Equipped with a differential pressure gauge to monitor filter contamination.
    • Temperature sensor with oil level indicator: For monitoring the oil level in the system.
  • Hydraulic power units are supplied with a hydraulic tank pre-filled with VMGZ oil.

Explosion-proof electric drive

The hydraulic power units are equipped with an explosion-proof electric drive. They can be used in potentially explosive atmospheres where hazardous mixtures of gases and vapors with air may form, classified into categories IIA, IIB, IIC, and temperature classes T1, T2, T3, T4 in accordance with GOST 12.1.011.

Oil delivery

Single-stage oil delivery power units are ideally suited for operations requiring a constant oil flow rate regardless of pressure, such as pressure testing.

Operating temperature ranges:

Working fluid temperature: from -10°С to +60°С

Ambient temperature: from -40°С to +40°С

Hydraulic power units for torque wrenches

Hydraulic Power Units for Hydraulic Tools

These units are designed to deliver hydraulic fluid at pressures up to 70 MPa and to operate hydraulic torque wrenches. Torque control is performed by monitoring the pressure on the gauge and converting it into torque values using the chart provided in the torque wrench manual.

They are equipped with a control system that enables both manual and automatic operation using a timer relay that controls the switching of the working fluid direction.

The standard configuration includes a vibration-resistant pressure gauge, relief valves on both pressure and return lines, a return-line filter, a temperature sensor, and a control pendant for manual operation.

Hydraulic power units for tensioning jacks

Hydraulic Power Units for Hydraulic Tools
  • Rated tank capacity: 5 — 100 L
  • Rated flow: 0.8 — 5 L/min
  • Electric motor power: 2.2 — 7.5 kW
  • Rated operating pressure: 60 — 70 MPa

These units are used to supply hydraulic power to tensioning jacks. These jacks are designed for tensioning prestressing strands in concrete structures such as bridges, buildings, etc.

The units are equipped with two three-position, four-way directional control valves, allowing precise control of hydraulic fluid flow direction, which is critical for accurate strand tensioning.

To achieve optimal tensioning of the prestressing strands, high-precision pressure gauges are used. They monitor pressure in the “tension” and “gripping” lines. The tension line provides the tensioning force, while the gripping line holds the tensioned strand in place.

Hydraulic power units can be equipped with either manual or solenoid control, enabling precise regulation of the tensioning process.

High-power diesel-driven hydraulic power units

Hydraulic Power Units for Hydraulic Tools

The hydraulic power unit, installed in a protective enclosure, is designed to supply hydraulic power to UBPT-series trenchless pipe-laying systems.

Control of the unit is performed via an integrated control panel equipped with a lockable steel cover (vandal-resistant design).

The working fluid includes hydraulic oils VMGZ (according to TU 38.101479-86), MGE-10A (according to OST 38.01281-82), and MGE-46V (according to TU 38.001347-83).

The operating temperature range of the working fluid is from -20 to +60 °C.

Hydraulic power units for rail-guided heavy equipment movement

Hydraulic Power Units for Hydraulic Tools

These hydraulic power units are used to ensure effective and reliable movement of heavy equipment on rails. This series of units features a dual-station design with an electric drive. It also includes two 4-way, 3-position manually operated directional control valves. This configuration ensures uniform load movement without skewing or uneven loads.

These units are enclosed in a protective housing mounted on a wheeled frame. This enhances the unit’s operational characteristics and ensures its ease of use and transportation.

Actuator pressure is monitored via a gauge located on the unit’s control panel. This enables the operator to monitor and adjust system pressure to achieve optimal performance and maintain safety during load movement.

Hydraulic power units for rail-guided movement systems offer advantages in terms of efficiency, safety, and ease of operation.

Hydraulic power units for synchronized lifting and movement systems

Hydraulic Power Units for Hydraulic Tools

These units are equipped with an electric drive and are designed to convert electrical energy into hydraulic power, ensuring the supply of working fluid to four independent hydraulic circuits. They are widely used in lifting systems where synchronized or independent movement of lifting points is required.

The system is operated via a Programmable Logic Controller (PLC) with an integrated LCD touchscreen, enabling precise and efficient control of the lifting process. The LCD touchscreen for indication, monitoring, and control allows the operator to easily input the required operating parameters, monitor the process in real time, and adjust settings as needed. This system is ideal for applications requiring a high degree of precision and coordination between mechanisms, ensuring safety and optimal performance.

The control program algorithm ensures full control over lifting system testing, object movement management in manual and automatic modes, as well as precise two-axis leveling of the object during its movement, with an accuracy of up to 0.05°. 

The system can be configured with any number of lifting points (from 2 and up to any required quantity), depending on the specific operational requirements and tasks to be performed.

Dual-axis inclinometer

Ensures precise horizontal alignment of the lifted object by compensating for load variations caused by uneven supports or structural changes.

Safety system

The safety system provides continuous monitoring of all components and may include three independent circuits:

  • Hydraulic lock-based control.
  • Software-based control.
  • Mechanical protection using dedicated safety mechanisms.

Hydraulic power units for dynamic hydraulic tools

Hydraulic Power Units for Hydraulic Tools

Hydraulic power units designed to drive handheld hydraulic tools are widely used in construction, maintenance, and emergency repair operations. Here are some of the characteristics:

  • One of the primary advantages of these units is the dual-flow system, which enables simultaneous operation of two different tools. The working fluid flow rate ranges from 15 to 20 L/min per outlet. When only one tool is connected, the total flow rate increases to 30–40 L/min, enhancing overall productivity.
  • The hydraulic power units are equipped with an integrated filter that provides continuous fluid filtration. This improves performance and extends the service life of the hydraulic tools, while reducing the risk of failures and the need for frequent maintenance.
  • A visual hydraulic fluid level indicator is integrated in the hydraulic tank to ensure the uninterrupted operation of the units. It allows operators to monitor the fluid level and provides indication when replenishment or replacement is required.
  • Hydraulic power units are manufactured using high-quality components that undergo strict incoming quality control. This ensures the reliability and durability of the pump units and minimizes the risk of failure.
  • The compact size and low weight of the power units allow them to be transported in the trunk of a passenger car, which simplifies delivery and makes storage more convenient.

These characteristics make hydraulic power units an ideal solution for operating hydraulic tools that require high pressure and reliable performance.

Custom modifications

The power units can be manufactured in various custom configurations to meet specific customer requirements.


Operating temperature ranges

  • Working fluid temperature in the oil tank: from +30°C to +50°C.
  • Ambient temperature: from -40°C to +40°C.
  • Arctic version: down to -50°C.