5-ton hydraulic pull-back ram 0663

Hydraulic pull-back ram technology enables bidirectional force application in mechanical repair and automotive bodywork. This 5-ton model extends from 560 mm to 690 mm, offering 130 mm of reversible travel. The ø33 mm shank diameter ensures stable mounting during tensioning operations.

Compact construction allows deployment in restricted access areas. The unit weighs 5.5 kg net, facilitating manual positioning. Hydraulic actuation requires a compatible pump, sold separately, to generate working pressure.

Hydraulic Pull-Back Ram Construction and Operation

The cylinder body houses a double-acting piston that extends under hydraulic pressure and retracts when reverse flow is applied. The shank serves as the load attachment point. Closed length measures 560 mm; full extension reaches 690 mm. This 130 mm stroke accommodates a range of pulling and pushing tasks without repositioning the tool.

• Load capacity: 5 tons (50 kN)
• Shank diameter: ø33 mm
• Closed length: 560 mm
• Extended length: 690 mm
• Reversible stroke: 130 mm
• Net weight: 5.5 kg
• Gross weight (packaged): 6.23 kg

Steel construction withstands repeated loading cycles. The shank profile accepts standard hydraulic accessories. Users must verify pump pressure rating and flow capacity match cylinder specifications to achieve rated force output.

Bidirectional Force Application

Pull-back capability distinguishes this ram from push-only models. Reversing hydraulic flow direction retracts the piston under load, enabling controlled tensioning and release. This function suits frame straightening, bearing extraction, and component alignment where both push and pull forces are required in sequence.

• Push mode: piston extends to apply compressive force
• Pull mode: piston retracts to apply tensile force
• Hydraulic control: directional valve switches flow path
• Load holding: hydraulic pressure maintains position under load

Operators must ensure secure shank attachment before applying force. The cylinder body requires rigid support to prevent lateral movement. Hydraulic hoses and fittings must meet or exceed system working pressure to avoid failure during operation.

Common Applications

Automotive body shops use pull-back rams for frame straightening after collision damage. The tool pulls bent sections back into alignment while pushing against fixed anchor points. Mechanical workshops employ the ram for bearing and bushing extraction, pressing operations, and heavy component positioning. The compact envelope fits between chassis rails and inside engine bays. Industrial maintenance teams apply the ram to machinery alignment, press-fit assembly, and structural adjustment tasks where controlled force and reversible action are necessary.

System Requirements and Accessories

This ram requires a hydraulic pump capable of delivering sufficient flow and pressure to achieve 5-ton force output. Hand pumps, electric pumps, and air-driven pumps are compatible provided they meet pressure specifications. Hoses, couplers, and pressure gauges are sold separately. Users must select accessories rated for the system working pressure.

• Hydraulic pump: not included, must be purchased separately
• Hoses and fittings: not included
• Pressure gauge: recommended for monitoring applied force
• Mounting brackets: may be required depending on application

Consult pump manufacturer data to match flow rate and pressure output to cylinder requirements. Undersized pumps will not develop full rated force. Oversized pumps may exceed safe operating pressure if not regulated.

Technical Data Summary

The following parameters define operational limits and physical characteristics. Exceeding rated capacity or stroke length may cause permanent damage or unsafe conditions. Always verify load and geometry before applying force.

• Maximum load capacity: 5 tons (50 kN)
• Shank diameter: ø33 mm
• Minimum length (closed): 560 mm
• Maximum length (extended): 690 mm
• Effective stroke: 130 mm
• Net weight: 5.5 kg
• Packaged weight: 6.23 kg
• Hydraulic pump: not included
• Accessories: not included