Electric Hydraulic Oil Pump for Prestressing Jacks

Description

Application

Features

Technical data

■ Description

ZB Series Electric Hydraulic Oil Pump is a compact hydraulic power unit designed for prestressing jacks and related tensioning equipment. Combining a swashplate axial piston mechanism with manual rotary handle control, it delivers high-pressure hydraulic oil for demanding construction and anchorage operations.

The unit integrates an electric motor, hydraulic pump, oil reservoir, control valves and connecting pipelines into a practical assembly. Its compact layout makes positioning and relocation easier when working between different tensioning points. Manual valve operation allows the operator to control oil delivery and pressure release according to the connected equipment and working procedure.

Suitable for use with compatible prestressing jacks, button heading machines, extrusion machines and tensioning systems, the ZB series provides hydraulic power for both precast production and on-site construction. Pump pressure, flow rate and valve configuration should be matched to the operating requirements of the selected jack or tool.

ZB series electric hydraulic oil pumps are widely used for prestressed concrete construction, bridge engineering and anchorage projects.

■ Application

1. Bridge Prestressing

Supplies hydraulic power to compatible stressing jacks for tensioning tendons in concrete bridge beams, girders and other prestressed bridge components.

2. Precast Concrete Production

Supports prestressing operations in the manufacture of concrete structural elements using appropriately matched tensioning equipment.

3. Building Construction

Powers hydraulic stressing equipment for prestressed concrete beams, slabs and other structural members in commercial and high-rise buildings.

4. Highway and Railway Projects

Serves as a hydraulic power source for prestressing and anchorage work in transport infrastructure construction.

5. Rock and Soil Anchoring

Operates compatible tensioning jacks for anchor tendons used in slope stabilization, excavation support and geotechnical reinforcement.

6. Power Station and Civil Engineering Works

Supports specified prestressing and anchorage operations where compact high-pressure hydraulic equipment is required.

7. Anchorage Preparation

Provides hydraulic power for compatible button heading and extrusion machines used in prestressing anchorage work.

■ Features

1. High-Pressure Hydraulic Power

Designed for applications requiring high hydraulic pressure and relatively low flow, including prestressing and tensioning operations.

2. Swashplate Axial Piston Structure

Uses an electric motor to drive the piston pumping mechanism, supplying pressurized oil to compatible hydraulic equipment

3. Manual Rotary Handle Control

Provides straightforward operation for adjusting oil delivery and releasing pressure through the fitted control valves.

4. Compact Integrated Design

Combines the pump, motor, reservoir and controls in one assembly, simplifying equipment positioning and jobsite setup.

5. Versatile Equipment Compatibility

Works with suitably matched prestressing jacks, button heading machines, extrusion tools and other hydraulic tensioning equipment.

6. Application-Based Configuration

Different pump models and valve arrangements allow selection according to the required pressure, oil flow and hydraulic circuit

7. Convenient Maintenance

An accessible mechanical layout facilitates inspection and servicing, supporting dependable operation with proper hydraulic oil management and routine maintenance.

■ Technical data

No.	Picture	Model	Technical specification	Mark
1		ZB2-500H Electric Pump	Power 3kw oil tank of cylinder25L Pressure 50mpa Pressure flow 2L/min Weight 53kgs Voltage 3phase 380v 50hz One Set will complete with 1pcs standrad manometer	Small in size and light in weight, it is suitable for use on small-tonnage jacks and can be directly reversed. It is used on 25tons type jacks, embossing machines, extruders, heading machines, etc. ZB2-500H control valve is a reversing valve structure.
2		ZB4-500H Electric Pump	Power 3kw oil tank of cylinder 42L Pressure 50mpa Pressure flow 2x2L/min Weight 120kgs Voltage 3phase 380v 50hz One Set will complete with 2pcs standrad manometer	It is small in size and is often used in various types of jacks, extruders, heading machines and other ancillary facilities with rated tensions less than 5000kN and strokes less than or equal to 300mm. It is the most widely used electric high-pressure oil pump.
3		ZB4-600H Electric Pump	Power 3kw oil tank of cylinder 42L Pressure 60mpa Pressure flow 4x4L/min Weight 120kgs Voltage 3phase 380v 50hz One Set will complete with 2pcs standrad manometer	It has a small size and is often used in various jacks and supporting facilities such as extruders and heading machines with a rated tension of less than 5000kN and a stroke of less than or equal to 300mm. ZB4-600H control valve is a reversing valve structure.
4		ZB6-600 Electric Pump	Power 5.5kw oil tank of cylinder 120L Pressure 60mpa Pressure flow 6x6L/min Weight 270kgs Voltage 3phase 380v 50hz One Set will complete with 2pcs standrad manometer	Ultra-high pressure, large flow rate, specially designed for jacks with large tonnage, long strokes and fast action requirements. It is often used with various types of jacks whose rated tension is greater than 5000kN or whose stroke is greater than or equal to 500mm.
5		ZB10-800H Electric Pump	Power 7.5kw oil tank of cylinder 120L Pressure 60mpa Pressure flow 10x10L/min Weight 270kgs Voltage 3phase 380v 50hz One Set will complete with 2pcs standrad manometer	Ultra-high pressure, large flow rate, specially designed for jacks with large tonnage, long strokes and fast action requirements. It is often used for various types of jacks with rated tension greater than 5000kN or stroke greater than or equal to 500mm. ZB10-800H control valve is a reversing valve structure.

Technical parameter for ZB series of electric hydraulic oil pump

Model	Rated pressure(Mpa)	Rated	Net weight(kg)	Power(KW)	Volume(L)	Overall	Purpose
		flow(L/min)				Model dimension(mm)

ZB2×2/50A	50	2×2	120	3	60	740×450×1050	Used of various jack, extruder, button head with rated pressure less than 50 Mpa.
ZB2×1.5/63	63	2×1.5	124	3	60	740×490×880	Used of various jack, extruder, button head with rated pressure less than 63 Mpa.
ZB4/80	80	4	270	4	60	1090×590×1120	Have the performance of big flow, high pressure, can separately feed oil for two jacks.

The technical for YB series of electric hydraulic oil pump

YB series of electric hydraulic oil pump
Model	Rated oil pressure	Rated flow	Power	Overall dimensions
Model	Mpa	L/min	KW	mm
YBZ2X2/50A	50	2X2	3	740X450X820
YBZ2X1.5/63A	63	2X1.5	3	740X450X820
YBZ4/2-50B	50	4/2	3	810X550X950
YBZ2-2/50C	50	2-2	3	740X450X820
YBZ10/4-50D	50	10/4	3	800X500X960

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