Double-Acting Hydraulic Power Unit – 700 Bar, 1.5 kW, 30L Tank

Description

CraftOil hydraulic equipment · Stock in Kharkiv, Ukraine · Technical support and service in Ukraine

The CraftOil double-acting hydraulic power unit with a 30-litre oil tank is designed to supply hydraulic power to compatible equipment operating at pressures of up to 70 MPa (700 bar). It is suitable for applications such as cable crimping presses, busbar bending machines, hydraulic presses, double-acting cylinders and other high-pressure hydraulic equipment.

Powered by a 1.5 kW electric motor and equipped with a two-stage hydraulic pump, this unit combines a specified flow rate of 7.9 L/min at the first stage and 1.7 L/min at the second stage with a larger 30-litre oil reservoir.

The key difference between this model and the comparable 10-litre version is the tank capacity. The larger reservoir can be beneficial for hydraulic systems with greater oil-volume requirements and for applications involving repeated or extended operation, provided the complete system is correctly designed.

Operating from a 220V single-phase power supply, the unit also features a remote control, a manual two-position directional valve and a glycerine-filled pressure gauge with a scale up to 1,000 bar.

Key Benefits

• 700 bar maximum operating pressure for compatible high-pressure hydraulic equipment.

• 1.5 kW electric motor for professional hydraulic applications.

• Two-stage hydraulic pump with specified flow rates of 7.9 L/min and 1.7 L/min.

• 30-litre oil tank for applications requiring a larger oil reservoir.

• Double-acting hydraulic circuit with two working lines, A and B.

• Remote control for convenient operation from the work area.

• 220V single-phase power supply.

• Glycerine-filled pressure gauge with a scale up to 1,000 bar.

• 2-metre high-pressure hose included.

• Technical consultation and service support from CraftOil in Ukraine.

Why Choose a 30-Litre Hydraulic Oil Tank?

The main advantage of this model is its 30-litre reservoir, compared with the 10-litre tank on the listed DB150-S2 model.

A larger reservoir can be useful for two important reasons: oil-volume requirements and heat management.

1. Oil Volume for Larger Hydraulic Systems

The hydraulic reservoir must contain enough usable oil to supply the connected cylinder throughout its operating cycle. The required capacity depends on the cylinder’s effective volume, the hydraulic circuit, the number of connected components and the manufacturer’s requirements.

The supplied product information gives the following approximate selection guide:

These figures are indicative selection estimates, not universal engineering limits. Confirm the required oil capacity for your specific cylinder and hydraulic circuit before purchasing.

If your equipment has a large cylinder or you connect several compatible hydraulic tools in sequence, a 30-litre reservoir may provide a more suitable oil reserve than a smaller tank.

2. Heat Management During Repeated Operation

Hydraulic oil heats up during operation, and the reservoir contributes to the system’s ability to dissipate heat. A larger oil volume can provide greater thermal capacity, helping moderate temperature changes during repeated operating cycles.

The actual oil temperature depends on operating pressure, cycle frequency, pump efficiency, ambient temperature, cooling conditions and the design of the entire hydraulic system.

A larger tank does not guarantee that the oil will never overheat. For demanding continuous-duty applications, assess the required cooling capacity and follow the equipment manufacturer’s operating recommendations.

Is a 30-Litre Tank Right for Your Workshop?

This model is worth considering when:

• Your connected equipment requires a larger usable oil volume.

• You operate hydraulic equipment repeatedly throughout the working day.

• You need a larger oil reservoir for your particular hydraulic circuit.

• The unit will mainly be installed at a stationary workstation or in a production area.

The trade-off is size and weight. The unit weighs 51 kg and measures 630 × 510 × 385 mm, making it less convenient to transport frequently between job sites.

If your equipment has a smaller oil-volume requirement or is used only occasionally, a 10-litre model may be more economical and practical.

Double-Acting Hydraulic Circuit: Controlled Movement in Both Directions

The power unit has two working hydraulic lines, A and B. Oil is directed alternately to the piston-side and rod-side chambers of a compatible double-acting hydraulic cylinder.

This allows the piston rod to extend and retract under hydraulic pressure instead of relying solely on a spring or gravity for the return stroke.

When Is a Double-Acting Power Unit Needed?

Consider this configuration when:

• Your cylinder requires hydraulic pressure in both chambers.

• The piston rod must retract under load.

• Your equipment needs controlled movement in both directions.

• You use compatible pipe benders, hydraulic pullers or presses with powered return.

• Your application involves repeated hydraulic cycles.

A double-acting cylinder commonly has two hydraulic ports, but the correct circuit must be confirmed using the cylinder’s documentation and connection diagram.

If your cylinder is single-acting and returns by spring or gravity, a single-acting power unit may be sufficient. CraftOil can help you identify the appropriate configuration before you order.

Technical Specifications

Pressure rating reminder: The maximum specified operating pressure is 700 bar. The gauge’s 1,000 bar scale does not increase the power unit’s pressure rating. All connected cylinders, hoses, fittings, couplings and tools must be rated for the intended operating pressure.

Remote Control and Pressure Gauge

Remote Control

The remote control allows the operator to start and stop the unit without standing directly beside its housing. This can improve convenience when the power unit is installed away from the working area.

The operator must still follow the equipment’s safety procedures and keep clear of moving components and pressurized hydraulic connections.

Glycerine-Filled Pressure Gauge

The supplied pressure gauge has a scale extending to 1,000 bar and is filled with glycerine to help dampen needle vibration.

The scale provides a measurement range; it does not authorize operation above the power unit’s specified maximum pressure of 700 bar.

Electrical Connection: 220V

The unit is specified for a 220V single-phase electrical supply.

For safe installation:

• Use a suitable, properly grounded electrical connection.

• Ensure that the wiring and protective devices meet the motor’s requirements.

• Avoid undersized extension cables.

• Do not leave an extension cable tightly coiled during operation.

• Follow the manufacturer’s electrical installation instructions.

The source information estimates a current draw of approximately 7 A. Actual current can vary with operating conditions. Check the motor nameplate and product documentation when planning the electrical connection.

Package Contents

The supplied package includes:

• Double-acting hydraulic power unit

• 2 m high-pressure hydraulic hose

• Quick-release hydraulic coupling

• Glycerine-filled pressure gauge, scale up to 1,000 bar

• Pressure gauge adapter

• Remote control

• Operating instructions

Hydraulic oil is not included. The source information indicates that approximately 30 litres may be required for this model. Confirm the actual filling quantity and oil type against the equipment documentation and the requirements of your connected hydraulic system.

Applications

The power unit can supply hydraulic power to compatible equipment designed for the required pressure, flow and double-acting circuit.

Potential applications include:

• Cable lug crimping presses

• Hydraulic cable cutters

• Busbar bending machines

• Hydraulic presses, including compatible cable presses

• Double-acting hydraulic cylinders

• Hydraulic jacks designed for the applicable circuit

• Pipe bending machines

• Hydraulic bearing and pulley pullers

• Industrial maintenance equipment

• Other compatible hydraulic machinery rated for the intended operating conditions

Before purchasing, verify the cylinder type, required flow rate, working pressure, hydraulic connections and oil-volume requirements.

Who Is This Model Designed For?

This unit is intended for professional applications where hydraulic equipment is used regularly, including:

• Electrical installation companies handling repeated cable crimping operations

• Industrial maintenance departments

• Automotive repair and service workshops

• Production facilities

• Hydraulic equipment service providers

• Workshops with stationary hydraulic workstations

The 30-litre tank makes this configuration particularly worth evaluating when a smaller reservoir may not meet the system’s oil-volume requirements.

CraftOil Hydraulic Power Unit Range

CraftOil offers different power unit configurations to meet different hydraulic requirements.

The comparison is based on the supplied product information. Confirm the model designation and exact configuration when ordering.

How to Choose the Right Model

1. Check the cylinder type.
A double-acting cylinder requires a compatible double-acting hydraulic circuit. A single-acting cylinder may work with a simpler single-acting unit.

2. Calculate the oil-volume requirement.
A 10-litre tank may be suitable for smaller systems, while a 30-litre tank may be appropriate for systems requiring a greater usable oil volume. Confirm the actual requirement for your equipment.

3. Consider the duty cycle.
If the power unit operates repeatedly throughout the day, assess oil temperature and cooling requirements in addition to tank capacity.

4. Consider installation and transport.
At 51 kg, this model is better suited to a stationary workstation than to frequent manual transport between sites.

CraftOil can help you compare models and avoid paying for capacity that your application does not need.

Compatibility with CraftOil Hydraulic Presses

CraftOil manufactures hydraulic presses rated at 50 and 70 tonnes and has practical experience with hydraulic systems in its own production workshop.

If you are selecting a power unit for a CraftOil press or another hydraulic machine, contact us before ordering so we can review the relevant specifications.

Please provide:

• The hydraulic cylinder model or technical specifications

• The number of hydraulic ports

• The required operating pressure

• The cylinder’s working volume and stroke, if available

• The expected number of operating cycles

• Photos of the cylinder, hydraulic connections or existing power unit

We can help assess whether the 30-litre configuration is appropriate or whether a smaller tank would be sufficient.

Hydraulic Oil Recommendations

The supplied product information recommends industrial hydraulic oils with viscosity grades ISO VG 32 or ISO VG 46, including suitable equivalents such as HLP 32 or HLP 46. The exact oil type must be confirmed against the equipment’s operating manual.

Oil Selection Guidelines

• Oil type: Use only a hydraulic oil grade approved for the power unit and the expected operating temperature.

• Oil quantity: The source information indicates approximately 30 litres for this model. Confirm the required quantity for the reservoir and connected hydraulic system.

• Cleanliness: Use clean filling equipment and appropriate filtration. Contamination can damage the pump, directional valve and seals.

• Temperature monitoring: Check the oil level and monitor oil temperature during extended operation. Follow the manufacturer’s instructions if the system becomes too hot.

• Maintenance: Follow the manufacturer’s oil-change and inspection schedule.

• Compatibility: Do not mix different hydraulic oils unless their compatibility has been confirmed.

The reservoir capacity alone does not establish the complete system’s oil requirement. Always consider the connected cylinder and the hydraulic circuit.

Safety and Operating Recommendations

Hydraulic systems operating at pressures up to 700 bar require careful installation, inspection and operation.

• Inspect hydraulic hoses, fittings and couplings before each use. Replace damaged or leaking components immediately.

• Confirm that lines A and B are connected according to the equipment diagram.

• Never exceed the pressure rating of the power unit or any connected component.

• Never disconnect a quick-release coupling while the system is pressurized.

• Wear suitable eye protection and keep hands away from pressurized connections.

• Never use your hands to locate a hydraulic oil leak.

• Monitor oil temperature during extended operation.

• Use a suitable, properly grounded 220V power supply.

• The unit weighs 51 kg. Use appropriate lifting equipment or assistance when moving it.

• Follow the manufacturer’s operating and maintenance instructions.

High-pressure injection hazard: Hydraulic oil escaping under pressure can penetrate the skin and cause serious injury. If a high-pressure injection injury is suspected, seek emergency medical attention immediately, even if the wound appears small.

Warranty, Spare Parts and Service

CraftOil provides technical assistance and local service support in Ukraine.

• Warranty: 3 months, according to the supplied product information.

• Spare parts and consumables: The source information lists availability in Ukraine for seals, pressure gauges, hoses, quick-release couplings, directional valves and remote controls.

• Technical support: Consultation on connections and setup by phone, Viber or Telegram.

• Collection: Available from the warehouse in Kharkiv.

• Delivery within Ukraine: Shipment via Nova Poshta.

• International orders: Availability and shipping terms can be confirmed individually.

Contact CraftOil to check stock availability, delivery arrangements, payment options and compatibility with your equipment.

Why Buy from CraftOil?

Practical Hydraulic Manufacturing Experience

CraftOil manufactures hydraulic presses and understands the importance of selecting compatible hydraulic components for dependable operation.

Honest Equipment Selection

We help customers choose equipment based on their real requirements. If a smaller tank or a less powerful model is sufficient, we will explain the options instead of recommending unnecessary capacity.

Local Service and Spare Parts

Local technical support and access to commonly required components can simplify equipment maintenance in Ukraine.

Convenient Ordering

When the product is in stock, dispatch can be arranged on the day of ordering, subject to order confirmation and operational conditions.

Available payment methods may include card payment, bank transfer for business customers and instalment options where offered. Confirm available payment methods and terms when placing your order.

Frequently Asked Questions

What is the main advantage of the 30-litre hydraulic power unit?

Its larger reservoir can be beneficial for hydraulic systems requiring a greater usable oil volume and can provide additional thermal capacity during repeated operation. Actual performance depends on the complete hydraulic system and operating conditions.

How is it different from the 10-litre model?

According to the supplied information, the pump, pressure, motor power and specified flow rates are the same. The main differences are the 30-litre reservoir and the unit’s weight and dimensions.

What is the maximum operating pressure?

The maximum specified operating pressure is 70 MPa (700 bar). All connected components must be rated for the intended operating conditions.

What is the pump flow rate?

The specified first-stage flow rate is 7.9 L/min at 2 Mpa. The second-stage flow rate is 1.7 L/min at 70 Mpa.

Is this a double-acting hydraulic power unit?

Yes. The supplied product information describes a two-line A/B circuit intended for compatible double-acting hydraulic cylinders. Verify the directional valve configuration and cylinder connections before use.

How much hydraulic oil is required?

The source information indicates approximately 30 litres. The actual filling quantity depends on the equipment configuration and must be confirmed against the operating documentation.

Which hydraulic oil should I use?

The supplied information recommends ISO VG 32 or ISO VG 46 hydraulic oil, subject to confirmation in the equipment manual. Oil is not included in the package.

Can I transport the unit between job sites?

The unit weighs 51 kg and measures 630 × 510 × 385 mm. It can be moved with suitable handling equipment, but it is less convenient for frequent transport than the listed 25 kg models.

What warranty does CraftOil provide?

The supplied product information specifies a three-month warranty. Contact CraftOil for details of warranty coverage and service conditions.

Can CraftOil help me choose the correct power unit?

Yes. Send us the cylinder specifications, photos of the hydraulic connections and details of your application. We can help assess whether the 30-litre configuration or another CraftOil model is more suitable.

Order Your CraftOil Hydraulic Power Unit

Looking for a 700 bar double-acting hydraulic power unit with a 1.5 kW motor and a 30-litre oil tank?

Contact CraftOil to confirm availability, discuss your hydraulic system requirements and receive assistance selecting a compatible power unit.

CraftOil — hydraulic equipment backed by practical manufacturing experience and technical support.