Our Location
304 North Cardinal St.
Dorchester Center, MA 02124
304 North Cardinal St.
Dorchester Center, MA 02124

Our Crane Jack is a factory-direct lifting solution engineered for superior reliability in heavy-duty lifting, crane maintenance, industrial jacking, and construction support applications. Built with high-strength materials and strict quality control, it ensures stable performance, long service life, and precise load handling in challenging environments. Complete mechanical drawings and technical documentation are available to facilitate installation, operation, and project planning. The jack is adaptable to diverse on-site conditions, effectively solving problems such as load alignment, elevation control, structural stability, and safe lifting operations. Backed by guaranteed after-sales service, professional technical support, and dedicated personnel tracking production and orders from manufacturing to delivery, we ensure smooth procurement, dependable performance, and long-term project value.
As a factory-direct manufacturer with extensive experience in crane components,we produce the Crane Jack to provide safe,stable,and efficient lifting and support for industrial cranes during maintenance,installation,or repair operations.Designed for overhead cranes,gantry cranes,jib cranes,and heavy lifting equipment,this jack ensures precise height adjustment,load stability,and operator safety.OEM customization and factory-direct supply allow adaptation to diverse industrial environments worldwide.The Crane Jack is engineered with high-strength alloy steel,precision-machined components,and robust hydraulic or mechanical mechanisms.It offers smooth lifting,accurate positioning,and reliable performance under heavy loads,making it ideal for workshops,ports,shipyards,steel mills,and fabrication plants.

The Crane Jack is a mechanical or hydraulic device used to lift and support cranes safely.Its robust design ensures stability under heavy loads and precise height adjustment during crane installation,maintenance,or repair.Factory-direct OEM customization allows specification adjustments for lifting capacity,stroke height,and mounting to match various crane types.Global buyers searching for factory-direct crane jacks,OEM lifting jacks,customized crane support solutions,or industrial lifting equipment rely on this model for safety,durability,and performance.
High Load Capacity&Stability
Designed to safely support cranes during lifting and maintenance operations.
Precise Lifting&Adjustment
Smooth operation allows accurate positioning and height control.
Durable&Reliable
High-strength alloy steel and precision engineering ensure long service life.
Factory-Direct OEM Customization
Lifting capacity,stroke height,mounting type,and hydraulic/mechanical options can be tailored to client requirements.
Wide Crane Compatibility
Suitable for overhead cranes,gantry cranes,jib cranes,and industrial lifting equipment.

| Model | Lifting Capacity(t) | Stroke Height(mm) | Jack Type | Material | Max Load | Mounting Type | Safety Factor |
| CJ-1 | 5 | 300 | Hydraulic | Alloy Steel | 5t | Base Mount | 1.5 |
| CJ-3 | 10 | 500 | Mechanical | Alloy Steel | 10t | Base/Floor | 1.5 |
| CJ-5 | 20 | 800 | Hydraulic | Alloy Steel | 20t | Floor Mount | 1.5 |
| CJ-10 | 50 | 1000 | Hydraulic | Alloy/Cast Steel | 50t | Custom | 1.5 |
| CJ-Custom | 100+ | Customized | Hydraulic/Mechanical | Alloy/Forged Steel | Customized | Customized | 1.5+ |
(Custom OEM designs and bulk supply available.)
Lifting cranes during installation and maintenance
Supporting overhead and gantry cranes for repair or inspection
Adjusting crane height during retrofitting or relocation
Industrial workshops,steel mills,shipyards,and ports
OEM and replacement equipment for existing crane systems
Provides safe and stable lifting support for cranes
Allows precise height adjustment during maintenance or installation
Protects cranes from uneven loading or instability
Supports OEM customization for various crane types
Ensures operational safety and efficiency in industrial lifting environments
Q1:Are these crane jacks factory-direct or supplied through distributors?
A1:We are a factory-direct manufacturer providing OEM and customized crane jacks globally.
Q2:Can lifting capacity and stroke height be customized?
A2:Yes,all specifications including capacity,stroke,and mounting can be tailored to client needs.
Q3:Are hydraulic and mechanical options available?
A3:Yes,both hydraulic and mechanical jacks are available for different crane applications.
Q4:What after-sales support is provided?
A4:Remote technical guidance,video troubleshooting,factory video tours,continuous assistance,and spare parts supply.
Remote guidance for installation and alignment
Video support for operation and maintenance
Factory video tours for quality verification
Continuous technical assistance for OEM and retrofit applications
Long-term supply of factory-direct crane jacks for distributors,exporters,and dealers
1.What types of cranes are compatible with these jacks?
Overhead cranes,gantry cranes,jib cranes,and industrial lifting systems.
2.Can the lifting capacity and stroke be customized?
Yes,fully adjustable to meet different crane types and operational requirements.
3.What materials are used for construction?
High-strength alloy steel,forged steel,or cast steel,precision-machined for durability.
4.Is OEM and bulk supply available?
Yes,factory-direct OEM production,wholesale,and exporter options are available globally.