What should be done if oil seepage occurs between the motor rear cover and valve block?

Inspect the high-pressure part of the valve block and replace the motor if needed. If the gear pump skeleton oil seal is loose, replace the gear pump.

Why does the motor continue to run after the switch is cut off?

Check for electrical connection errors, a burned-out start switch, or a burned-out AC contactor.

How to reduce excessive system noise?

Remove air from the system by operating back and forth, check and replace worn couplings, inspect the motor, and avoid operating under extreme pressure for long periods.

High Pressure Precision DC Hydraulic Power Unit with Certificated for Stretching Machine

Name: High Pressure Precision DC Hydraulic Power Unit with Certificated for Stretching Machine
Brand: Huai'an Yansheng Hydraulic Machinery Co., Ltd.
SKU: 2260692905

Jiangsu, ChinaHuai'an Yansheng Hydraulic Machinery Co., Ltd.

US$116.00-135.00

1 Piece

Sample price:US$135.00/piece.Request sample

Product profile

Customization

Available

Pressure

High Pressure

Work Temperature

Normal Temperature

Model NO.

YS-DC12-C-D-12-H-A-E-D

Voltage

DC12V/DC24V/DC48V/ DC60V/ DC72V

Installation

Horizontal

Material

Aluminum Alloy

Motor Power

0.8kw, 1.2kw, 1.6kw, 2.2kw,2.5kw, 3kw, 4kw

Pump Displacement

0.75cc/R, 1.1cc/R,1.6cc/R, 2.1cc/R, 2.6cc/R, etc

Working Pressure

16MPa

Oil Tank Capacity

4L, 8L, 10L

Sample

Available

Usage

Electric Stacker

Transport Package

Carton

Specification

standard

Trademark

Origin

Huai'an, China

Key features

Multi-Voltage Options: Available in DC12V, DC24V, DC48V, DC60V, and DC72V configurations.

Customizable Motor Power: Motor power ranges from 0.8kW to 4kW to suit specific needs.

Adjustable Pump Displacement: Pump displacement options include 0.75cc/R, 1.1cc/R, 1.6cc/R, and more.

Flexible Tank Capacity: Oil tank capacity available in 4L, 8L, and 10L sizes.

High Working Pressure: System operates at a maximum working pressure of 16MPa.

Durable Aluminum Alloy: Constructed with high-strength aluminum alloy for reliability.

Sample Availability: Samples are available for testing and verification purposes.

Patented Technology: Features 14 utility model patents including leak detection and low-noise designs.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceSelf-brandedPatents Awarded

Huai'an Yansheng Hydraulic Machinery Co., Ltd.

Jiangsu, China

Business Type: Manufacturer/FactoryExport Year: 2020-02-10Nearest Port: ShanghaiAverage Response Time: ≤3.86hTerms of Payment: T/TInternational Commercial Terms(Incoterms): FOB, EXW, DDP

AI-Powered supplier vetting

SummaryThe supplier demonstrates documented quality and service-management procedures, including corrective/preventive actions, complaint handling, finished-product inspection, and supplier-service assessment. It offers broad customization and 3D design services, but reports no new products in the past year. Production evidence is limited to one production line, with no ongoing batch quantity reconciliation; outsourcing procedures exist, while no valid manufacturing-capacity contract with affiliated subcontractors is reported. The supplier has inventory capability and export experience, but no overseas warehouse, showroom, agents, branches, or offline trade-show participation. Financial credibility cannot be established because the provided financial indicators are all zero and no supporting financial context is available.

Supplier typeThe supplier describes itself as a hydraulic-products enterprise focused on quality control, customer satisfaction, and reliable products and solutions. It has self-operated import and export rights and reports that exports represent 41%–50% of total sales, indicating a manufacturer-oriented supplier with international trading capability.

After-Sales capabilityThe supplier has documented complaint-handling and corrective-action procedures, inventory capability, and listed service offerings including debugging, maintenance, repair, training, and equipment installation. However, it has no overseas agents or branches, overseas warehouse, overseas showroom, or reported overseas service countries, limiting evidence of local international support.

Production capacityThe supplier reports one production line, inventory capability, and a standard operating procedure for outsourced manufacturing. It also reports no ongoing batch quantity reconciliation and no valid manufacturing-capacity contract with affiliated subcontractors, creating documented production-control and capacity-assurance weaknesses.

Customization capabilityThe supplier explicitly offers customization from samples, designs, full customization, minor customization, and flexible customization, alongside 3D software design services. This directly supports broad customization capability.

Product Q&A

Q:What are the common causes if the motor does not rotate?

Check the accuracy of the connection lines to ensure proper wiring.

Q:Why does the oil cylinder not rise or rise unsteadily when the motor starts?

Possible causes include low oil level, incorrect oil viscosity, clogged filter screen, air leaks in suction pipe, unclosed valves, solenoid valve energization issues, reverse motor rotation, improper relief valve installation, or incorrect coupling selection.

Q:What should be done if the relief cylinder does not descend or descends unsteadily?

Check if the solenoid valve is powered, verify input voltage, clean clogged filters, inspect damaged electromagnets, adjust blocked valves, and ensure proper electrical signals.

Q:How to troubleshoot if the system fails to maintain pressure?

Check if the check valve or solenoid valve is sealed and replace oil seals if necessary. Connect a pressure gauge to the oil outlet to rule out actuator issues.

Q:What causes oil leakage between the oil tank and valve block?

Inspect and replace worn or broken O-rings between the oil tank and valve block.