What are the solutions for oil seepage between the motor rear cover and valve block?

If high-pressure leakage occurs, inspect the motor and replace the entire unit if needed. If the gear pump 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 that needs replacement.

How to eliminate excessive system noise?

Remove air from the system by cycling the controls, check and replace the worn coupling, inspect the motor, or stop operation if the relief valve overflows due to extreme pressure.

48V Powerful Industrial New Double-Acting DC Hydraulic Power Unit

Name: 48V Powerful Industrial New Double-Acting DC Hydraulic Power Unit
Brand: Huai'an Yansheng Hydraulic Machinery Co., Ltd.
SKU: 2260653725

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

US$120.00-135.00

1 Piece

Sample price:US$135.00/piece.Request sample

Product profile

Customization

Available

Pressure

High Pressure

Work Temperature

Normal Temperature

Model NO.

YS-DC48-A-F-48-H-D-E-E

Voltage

DC12V/DC24V/DC48V/ DC60V/ DC72V

Installation

Horizontal

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

Environmental Sanitation Industry

Transport Package

Carton

Specification

standard

Trademark

Origin

Huai'an, China

Key features

Multi-Voltage Compatibility: Supports DC12V, DC24V, DC48V, DC60V, and DC72V for versatile power needs.

Customizable Motor Power: Available in 0.8kw, 1.2kw, 1.6kw, 2.2kw, 2.5kw, 3kw, and 4kw options.

Adjustable Pump Displacement: Offers 0.75cc/R, 1.1cc/R, 1.6cc/R, 2.1cc/R, 2.6cc/R, and other custom sizes.

Flexible Tank Capacity: Oil tank capacity options include 4L, 8L, and 10L to suit different volumes.

High Pressure Performance: Delivers a working pressure of 16MPa for efficient hydraulic power supply.

Integrated Design: Combines pump, motor, valve, and tank into a compact, easy-to-operate unit.

Industry-Specific Solution: Specially designed for the environmental sanitation industry and electric trucks.

Sample Availability: Samples are available for testing and evaluation before bulk orders.

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: ≤1.71hTerms 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 the suction pipe, valve not closed, solenoid valve issues, reverse motor rotation, improper relief valve installation, or faulty coupling.

Q:What should I do if the relief cylinder does not descend or descends unsteadily during unloading?

Check if the solenoid valve is powered, verify input voltage, clean clogged filters, check for damaged electromagnets, adjust blocked valves, or inspect electrical signals.

Q:How can I fix the system failing to maintain pressure?

Clean or replace the check valve and solenoid/manual valve seals. If the actuator is the issue, connect a pressure gauge directly to the oil outlet to confirm.

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

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