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

Remove the motor to inspect high-pressure valve block leaks or replace the gear pump if the skeleton oil seal is loose.

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

Check for electrical connection errors, burned-out start switches, or burned-out AC contactors.

How to reduce excessive system noise?

Remove air from the system, check and reinstall or replace the coupling, inspect the motor, and avoid operating under extreme pressure for long periods.

Reliable High Quality 60V/72V Hydraulic Power Pack for Trailer

Name: Reliable High Quality 60V/72V Hydraulic Power Pack for Trailer
Brand: Huai'an Yansheng Hydraulic Machinery Co., Ltd.
SKU: 2251330895

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 electric sanitation truck applications.

Customizable Motor Power: Motor power options range from 0.8KW to 4KW to meet specific power requirements.

Adjustable Pump Displacement: Pump displacement available from 0.75cc/R to 2.6cc/R and beyond for flexible flow control.

High Working Pressure: Operates at a high working pressure of 16MPa for efficient hydraulic system performance.

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

Integrated Design: Combines high-pressure gear pump, multi-voltage motor, valve, and tank into a single compact unit.

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

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

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: ≤4.49hTerms 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 electrical contact.

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

Causes include low oil level, incorrect oil viscosity, clogged filter screen, air leaks in suction pipe, valve not closed, emergency button issues, solenoid valve energization problems, reverse motor rotation, improper relief valve installation, or faulty coupling.

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

Check solenoid valve power, input voltage, clogged filter screens, damaged electromagnets, blocked throttle/pressure valves, and ensure correct electrical signals.

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

Inspect check valve sealing, solenoid/manual valve sealing, and 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 at the connection points.