Prototype with dual circuits

Solenoid-operated single-circuit oil pump = a hydraulic power unit featuring a single oil circuit (with only one high-pressure outlet and return line) and an integrated solenoid directional control/unloading valve, specifically designed for precise, electronically controlled, and pressure-maintaining operation of a single actuator (single jack or single cylinder).

Classification :

DBS Series Single-Pump Dual-Line Electric Hydraulic Power Unit

WhatsApp : +8615837886050

E-mail : wangpengchao@tuoxinjs.cn

PRODUCT DETAILS

Core Structure (Simplified)

- Pump Body: Plunger pump/gear pump (plunger pumps are commonly used for high pressure, 50–80 MPa)

- Solenoid Valve: 2-way/3-way (reversing/unloading/pressure holding)

- Single Oil Circuit: Only one set of inlet/outlet ports, no parallel branches

- Accessories: Relief valve, check valve, pressure gauge, oil tank, motor+

Core Applications (Distinguished from Dual-Circuit Systems)

- Precise single-actuator control: Single-jack tensioning, single-cylinder lifting/pressure holding

- Electronically controlled start/stop, directional control, and unloading: PLC/button control with millisecond-level response and no manual directional control lag

- Pressure holding/load holding: Pressure lock upon power failure or loss, suitable for prestressing tensioning and mold pressure holding

- Energy-saving unloading: Solenoid valves open during standby, allowing the pump to idle, thereby reducing energy consumption and heat generation

- Single-strand/single-point operation: Does not support synchronized tensioning with multiple jacks

Typical Applications (Best Match)

1. Prestressing Construction (Most Common)

- Single-strand prestressing (box girders/hollow slabs/single-hole prestressing for pipe piles)

- Post-tensioning: single-hole anchoring, single-strand anchor cable/bolt tensioning

- Small precast components: pre-tensioning with single-jack tensioning

2. Small Hydraulic Equipment

- Single-cylinder hydraulic presses, single-cylinder pipe jacking machines, single-cylinder crimping machines

- Mold closing/holding pressure, single-cylinder lifting/alignment

- Hydraulic clamps, single-cylinder locking devices

3. Construction/Geotechnical/Water Resources

- Tensioning of single anchor bolts for slopes, tensioning of single anchor cables for excavation pits

- Single-cylinder opening/closing of small gates, single-cylinder water-stopping thrust

- Single-cylinder installation/jacking of equipment, single-cylinder alignment

4. Industrial Automation

- Single-station hydraulic fixtures, single-cylinder positioning/clamping

- Single-cylinder conveying/lifting, single-cylinder test benches

Quick Overview of Advantages and Disadvantages

✅ Advantages

- Simple structure, low cost, and easy maintenance

- Precise electronic control, fast response, and stable pressure (±1.5%)

- Reliable pressure maintenance, suitable for single-action/single-actuator applications

- Compact size, suitable for confined spaces

❌ Disadvantages

- Single-circuit design; cannot synchronize multiple jacks

- Lower efficiency than multi-circuit systems; not suitable for high-flow or multi-action applications

Key Selection Criteria (Quick Reference)

- Pressure: 50/63/80 MPa (63/80 MPa commonly used for prestressing)

- Flow Rate: 2–6 L/min (lower flow rates provide greater stability)

- Solenoid Valve: DC 24 V (common), AC 380 V

- Configuration: Single ram (YCW100–600 kN), single cylinder

- Control: Manual button/PLC/remote control

Differences from Dual-Circuit Pumps

- Single-circuit: 1 oil circuit, single ram, single-action, good pressure holding, cost-effective

- Dual-circuit: 2 oil circuits, dual rams in sync, bidirectional action, high efficiency, higher cost

Motor Power	Voltage	Standard Configuration Operating Valve	Oil Tank Capacity
0.75KW	220V/380V	Manual Double-Acting	16L/8L
		Manual Single-Acting	16L/8L
		Solenoid Single-Acting	16L/8L
		Solenoid Double-Acting	16L/8L
1.1KW	220V/380V	Manual Double-Acting	16L/8L
		Manual Single-Acting	16L/8L
		Solenoid Single-Acting	16L/8L
		Solenoid Double-Acting	16L/8L
1.5KW	220V/380V	Manual Double-Acting	36L/40L
		Manual Single-Acting	36L/40L
		Solenoid Single-Acting	36L/40L
		Solenoid Double-Acting	36L/40L
2.2KW	220V/380V	Manual Double-Acting	40L/36L
		Manual Single-Acting	40L/36L
		Solenoid Single-Acting	40L/36L
		Solenoid Double-Acting	40L/36L

CUSTOMER VISIT

Our products sell well throughout China and are exported to countries and regions such as Cambodia, Malaysia, the Philippines, Dubai, and Colombia.

FACTORY WORKSHOP

With over 100 employees and more than 30 advanced processing and testing equipment, including CNC machine tools, CNC drilling machines, radial drilling machines, and cutting machines, the company boasts stable production capacity.

Factory workshop

APPLICATION FIELD

Railway

Municipal

Airport

Water conservancy and hydropower

Bridge

Oil Extraction

FAQ

Q:How long is your delivery time?

A:Generally it is 5-10 days if the goods are in stock .

Q:If accept OEM/ODM service to made product as per customer offering drawing?

A:Yes,we can offer OEM/ODM service.

Q:How can we trust your quality?

A:There are many ways to check qualitySuch as,send sample,visit factory,etc.Our advice is that visit factory is the best

Q:Can the Buyers Visit the Factory?

A:Yes, we fully agree that this is the best way to guarantee product quality. We can provide a sample for you upon request; you will only need to cover the express shipping cost.

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