HHB-700AB Double-Acting Hydraulic Power Unit – 700 Bar, 220V

Description

In stock in Kharkiv, Ukraine · Warranty and service in Ukraine · Professional equipment selection

The CraftOil HHB-700AB double-acting hydraulic power unit is designed to operate hydraulic cylinders that require pressurized oil to extend and retract the piston rod. Its two working lines, A and B, allow hydraulic pressure to be directed alternately to the cylinder’s two chambers, providing controlled movement in both directions.

With a maximum operating pressure of 70 MPa (700 bar), a 0.75 kW electric motor and a 7-litre oil tank, the HHB-700AB is suitable for compatible high-pressure hydraulic equipment used in workshops, industrial facilities, maintenance operations and installation work.

The two-stage pump delivers a higher oil flow at low pressure for faster initial movement and switches to the high-pressure stage as resistance increases. The unit operates from a standard 220V single-phase power supply and includes a remote control for convenient operation.

Double-Acting vs. Single-Acting Hydraulic Power Units

The main difference between the HHB-700AB and the DYB-63A or DYB-63H models is the hydraulic circuit configuration.

When Do You Need a Double-Acting Hydraulic Power Unit?

The HHB-700AB is worth considering when:

• Your hydraulic cylinder has two hydraulic ports and requires pressure in both chambers.

• The piston rod must retract under hydraulic power instead of relying on a spring or gravity.

• You need predictable, controlled movement in both directions.

• Your equipment requires powered retraction during repetitive operating cycles.

• You operate compatible pipe benders, hydraulic pullers, presses or other machinery requiring a double-acting cylinder.

When Is a Single-Acting Unit Enough?

If your cylinder has one hydraulic port and returns through a spring, gravity or another designed return mechanism, a single-acting power unit may be sufficient.

A double-acting unit adds complexity and cost, so it is not automatically the best choice for every application. Contact CraftOil with your cylinder specifications, and we will help you determine which configuration suits your equipment.

Technical Specifications

Important: The power unit’s maximum operating pressure is 700 bar. The 1,000 bar gauge scale does not increase the unit’s pressure rating. Always follow the pressure limits of the connected cylinder, hoses, fittings and other components.

Remote Control for Convenient Operation

The remote control allows the operator to start and stop the power unit without having to stand next to its housing. This makes operation more convenient and helps the operator remain focused on the workpiece and equipment.

Always keep a safe distance from moving parts and pressurized hydraulic connections. A remote control does not replace appropriate safety procedures.

Why Does the Pressure Gauge Have a 1,000 Bar Scale?

The glycerine-filled pressure gauge has a scale extending to 1,000 bar, while the power unit is rated for a maximum operating pressure of 700 bar.

Glycerine helps dampen needle vibration, making readings easier to observe during operation. The gauge scale is an indication range, not permission to operate the hydraulic system above its rated pressure.

Package Contents

The standard package includes:

• HHB-700AB hydraulic power unit

• 2 m high-pressure hydraulic hose

• Quick-release hydraulic coupling

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

• Pressure gauge adapter

• Remote control

• Operating instructions

• Factory packaging

Hydraulic oil is not included. Select the oil according to the equipment manufacturer’s instructions and the operating conditions.

Applications

The HHB-700AB double-acting hydraulic power unit can be used with compatible hydraulic equipment rated for the required operating pressure, including:

• Double-acting hydraulic cylinders

• Hydraulic presses, including compatible cable crimping presses

• Hydraulic jacks designed for the applicable circuit

• Cable lug crimping presses

• Hydraulic cable cutters

• Busbar bending machines

• Pipe bending machines

• Hydraulic bearing and pulley pullers

• Other industrial and maintenance equipment requiring a compatible hydraulic power source

The key requirement is compatibility between the power unit’s hydraulic circuit and the connected equipment. Check the cylinder type, required flow rate, pressure rating, oil capacity and connection specifications before purchasing.

Who Is This Power Unit For?

The HHB-700AB is intended for professional users who need controlled hydraulic movement in both directions, including:

• Electrical installation and maintenance teams

• Industrial maintenance companies

• Automotive repair workshops

• Manufacturing facilities

• Hydraulic equipment service providers

• Professional workshops using double-acting cylinders

Choosing the Right CraftOil Hydraulic Power Unit

CraftOil offers several hydraulic power unit configurations for different operating requirements.

Specifications are based on the supplied product information. Confirm the required connections and control configuration before ordering.

Which Model Should You Choose?

• HHB-700AB: Choose this model when your equipment requires a double-acting cylinder with powered movement in both directions.

• DB-150S1: Consider this model when you need a higher specified flow rate and a 10-litre tank for compatible single-acting equipment.

• DYB-63A or DYB-63H: Consider these models for compatible single-acting cylinders with spring, gravity or other designed return mechanisms.

The best choice depends on the cylinder’s working volume, required flow rate, pressure rating and return mechanism—not pressure alone.

Compatibility with CraftOil Hydraulic Presses

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

If you are selecting a hydraulic power unit for a CraftOil press or another hydraulic machine, contact us before ordering. We can help you review the equipment specifications and identify the relevant compatibility requirements.

Please provide the following information:

• Hydraulic cylinder model or technical specifications

• Number of hydraulic ports on the cylinder

• Required operating pressure

• Cylinder working volume and stroke, if available

• Whether powered retraction is required

• Photos of the cylinder, connections or existing power unit

We will help you determine whether the HHB-700AB is appropriate or whether a simpler single-acting unit would be more suitable.

Which Hydraulic Oil Should You Use?

The supplied product information recommends industrial hydraulic oils in viscosity grades ISO VG 32 or ISO VG 46, including suitable equivalents such as HLP 32 or HLP 46. The exact oil must be confirmed against the power unit’s operating manual and the manufacturer’s requirements.

Oil selection guidelines:

• Viscosity: Use only a hydraulic oil grade approved for the equipment and expected operating temperature.

• Oil quantity: Ensure the tank and system have sufficient usable oil volume for the connected cylinder and the complete operating cycle. Confirm the required capacity from the manuals for both the power unit and cylinder.

• Cleanliness: Fill the reservoir using clean equipment and appropriate filtration. Contamination can damage the pump, directional valve and seals.

• Oil changes: Follow the manufacturer’s maintenance interval and replace the oil when required by its condition or the service instructions.

• Mixing oils: Do not mix different oil types or products unless their compatibility has been confirmed.

Do not select the oil solely on the basis of viscosity. Always follow the equipment documentation.

Safety and Operating Recommendations

Hydraulic systems operating at 700 bar require appropriate installation, inspection and operating procedures.

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

• Connect the A and B hydraulic lines according to the equipment diagram. Incorrect connections can cause unexpected cylinder movement.

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

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

• Wear appropriate eye protection and keep hands away from leaks and pressurized connections. High-pressure oil can cause serious injection injuries.

• Monitor oil temperature during extended operation.

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

• Follow the operating manual and depressurize the system before maintenance.

Safety reminder: Never use your hands to search for a hydraulic oil leak. 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 local support for customers purchasing hydraulic equipment in Ukraine.

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

• Spare parts and consumables: Availability in Ukraine, including seals, pressure gauges, hydraulic hoses, quick-release couplings and directional valves.

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

• Collection: Available from the warehouse in Kharkiv.

• Delivery: Shipment via Nova Poshta within Ukraine.

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

Contact us to confirm stock availability, delivery arrangements and compatibility with your equipment.

Why Buy a Hydraulic Power Unit from CraftOil?

Practical Hydraulic Equipment Expertise

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

Equipment Selection Based on Your Requirements

We help customers choose a suitable power unit based on the actual application. If a single-acting unit meets your needs, we will explain that rather than recommending a more complex model unnecessarily.

Local Service and Spare Parts

Local support in Ukraine helps simplify technical consultations, maintenance and the replacement of commonly required components.

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 include card payment, bank transfer for businesses and instalment payment options where offered. Confirm the available payment terms when placing your order.

Frequently Asked Questions

What is a double-acting hydraulic power unit?

A double-acting hydraulic power unit supplies pressurized oil to either of the two chambers of a compatible hydraulic cylinder. This allows the piston rod to extend and retract under hydraulic pressure.

What is the difference between the HHB-700AB and the DYB-63A?

The principal difference is the hydraulic circuit. The HHB-700AB is designed for double-acting cylinders and includes a remote control. The DYB-63A is a single-acting unit intended for compatible cylinders with a designed return mechanism. Their listed pressure, motor power, flow rates, tank capacity and weight are the same.

How can I identify a double-acting hydraulic cylinder?

A double-acting cylinder commonly has two hydraulic ports, allowing oil to enter either chamber. A single-acting cylinder commonly has one pressure port and returns through a spring, gravity or another designed mechanism. Check the manufacturer’s documentation rather than relying on port count alone.

Does the HHB-700AB work from a standard electrical outlet?

It is specified for a 220V single-phase power supply. Confirm that the outlet, wiring, grounding and electrical protection are suitable for the motor and installation.

What is the maximum operating pressure?

The maximum specified operating pressure is 70 MPa (700 bar). The pressure rating of the connected cylinder, hose, fittings and other components must also be suitable for the system’s operating pressure.

Why is the pressure gauge rated up to 1,000 bar?

The gauge has a 1,000 bar measurement scale, while the power unit is rated for up to 700 bar. Glycerine dampens needle vibration. The gauge rating does not increase the permissible operating pressure of the power unit.

Is hydraulic oil included?

No. Hydraulic oil must be purchased separately and selected according to the equipment manual and operating conditions.

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 connections and details of your application. We can help assess whether the HHB-700AB or another hydraulic power unit is the more appropriate choice.

Order the HHB-700AB Hydraulic Power Unit from CraftOil

Need a 700 bar double-acting hydraulic power unit for professional or industrial applications?

Contact CraftOil to confirm availability, discuss your equipment requirements and receive assistance with selecting a compatible hydraulic power solution.

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