What should I do if there is air in the cylinder?

For new jacks or those idle for a long time, reciprocate the piston rod 2-3 times without load to eliminate air in the cavity.

How can I maintain the hydraulic jack?

Since it uses oil as the medium, ensure it is well-maintained to avoid clogging or leakage. For idle jacks, operate them 2-3 times a month without load.

What is the minimum order quantity?

The minimum order quantity is 1 Pc.

Hot Sale 560 Ton Hydraulic Jack Self-Locking Hydraulic Jack for Construction

Name: Hot Sale 560 Ton Hydraulic Jack Self-Locking Hydraulic Jack for Construction
Brand: Jiangyin Eternal Heavy Industry Co., Ltd.
SKU: 1900511695

Jiangsu, ChinaJiangyin Eternal Heavy Industry Co., Ltd.

US$850.00

1 Piece

Product profile

Customization

Available

Certification

GS, CE, ISO9001

Pressure

Medium Pressure

Model NO.

CLL-5006

Work Temperature

Normal Temperature

Acting Way

Single Acting

Working Method

Straight Trip

Adjusted Form

Switching Type

Structure

Piston Type

Material

Alloy Steel

Carrying Capacity

560t

Stroke

150mm

Stretch Height

625mm

Diameter

400mm

Weight

467kg

Transport Package

Wooden Box

Specification

CLL-5006

Trademark

ETERNAL

Origin

China

HS Code

8425421000

Production Capacity

1000 Pieces/Month

Key features

Self-Locking Safety: Nut self-locking ensures safe support of heavy objects even when oil pressure is removed.

Overload Protection: Built-in pressure relief valve and pressure-holding device prevent overload for safe operation.

Leak-Proof Design: High-pressure hose and threaded joint connection overcome oil leakage common in traditional joints.

Underwater Capability: Designed for single-acting use and can be safely operated underwater for load retraction.

Wide Application: Ideal for equipment installation, lifting, and dismantling in construction, mining, and shipbuilding.

High-Quality Material: Constructed from alloy steel to ensure durability and reliability in heavy-duty environments.

Certified Quality: Products hold GS, CE, and ISO9001 certifications ensuring international safety standards.

Customizable Specs: Carrying capacity, stroke, and dimensions can be customized to meet specific project needs.

Company profile

High Repeat Buyers ChoiceYears of Export ExperienceQuality AssuranceR&D Capabilities

Jiangyin Eternal Heavy Industry Co., Ltd.

Jiangsu, China

Business Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available CertifiedExport Year: 16 Years CertifiedNearest Port: Shanghai PortAverage Response Time: ≤6.52h CertifiedTerms of Payment: T/T, LC

AI-Powered supplier vetting

SummaryThe supplier is a limited company in Jiangyin, Jiangsu, with 58 employees and a stated business scope covering manufacturing, forgings, mining machinery, general equipment, machine parts, and related sales. Its offered products are hydraulic cylinders and forging shafts. It reports broad customization and ODM capabilities, recent new-product development, and one production line with stated output for steel mill rolls and hydraulic cylinders. Quality inspection instructions are documented and uniformly followed. However, it has no in-stock capacity, overseas warehouse, overseas showroom, overseas agents or branches, and reports no offline trade-show participation. No certification information or customer cases are provided. Financial records are referenced for 2021–2023, but the slices do not provide sufficient financial performance evidence for a credibility assessment. The supplier’s stated status as a trading company, combined with manufacturing-related scope and valid contracts with associated...

After-Sales capabilityThe supplier reports no overseas warehouse, overseas showroom, overseas agents or branches, and offers services in zero overseas countries. These stated limitations indicate weak international after-sales infrastructure, although no complete after-sales policy or response capability is provided.

R&D capabilityThe supplier reports new products during the past year, provides ODM services, and supports customization from samples and designs through full customization. However, total R&D engineer experience is reported as below five years and no SDK is available, so the evidence supports product-development capability but not a complete advanced-innovation assessment.

Production capacityThe supplier lists extensive equipment, one production line, stated annual outputs of 10,000 tons for steel mill rolls and 3,000 tons for hydraulic cylinders, and valid contracts with each associated subcontractor. It also has 15 qualified service-capability suppliers and written assessment procedures, although it reports no inventory capacity and the lead-time entry is unclear.

Customization capabilityBoth R&D and design-service records explicitly list customization from samples, customization from designs, minor customization, flexible customization, and full customization. This is direct evidence of broad customization coverage.

Product Q&A

Q:What is the self-locking feature of this hydraulic jack?

The nut self-locking mechanism allows the jack to support heavy objects safely even when the oil pressure is removed, making it ideal for long-term support.

Q:Can this hydraulic jack be used underwater?

Yes, the jack is designed for single-acting use and can be safely operated underwater for load retraction.

Q:How does the jack prevent overload?

It is designed with a device to hold pressure and a built-in pressure relief valve to protect against overload and ensure safe operation.

Q:What industries is this jack suitable for?

It is mainly used for equipment installation, lifting, and dismantling in industries such as electric power, construction, machinery manufacturing, mining, railway, bridges, and shipbuilding.

Q:What certifications does the product have?

The product has obtained GS, CE, and ISO9001 certifications.