Heavy-Duty Outrigger Stabilization Jack for Mobile Cranes
Establish a rock-solid foundation for every lift. The EPYY11112023 Frame Support Cylinder is a precision-engineered 123kg stabilization ram designed for modern truck crane outriggers. Delivering 30MPa of continuous vertical force with a 640mm stroke, it ensures absolute chassis leveling and anti-tilt security for heavy-duty telescopic boom operations.
1. Comprehensive Product Overview
In the world of mobile lifting, structural stability is the ultimate safety requirement. The EPYY11112023 truck crane outrigger cylinder is the primary vertical actuator tasked with transferring the entire machine’s center of gravity onto the ground pads. This stabilization jack must sustain massive static loads for extended periods without even a millimeter of drift.
Featuring a heavy-duty Φ140mm bore and a massive Φ120mm rod, this cylinder is engineered to handle the “rebound” shocks and dynamic pressure spikes common during high-angle luffing. It serves as a 100% mechanical replacement for flagship truck crane fleets, providing OEM-grade precision with enhanced durability for 24/7 site operations.
Primary Engineering Applications:
- Truck Cranes: Vertical stabilization and chassis leveling.
- Concrete Pump Trucks: Frame support for high-reach placing booms.
- Firefighting Aerials: Rapid outrigger deployment for ladder stability.
- Drilling Rigs: Precision vertical alignment for heavy infrastructure foundation.
2. Exact Technical Parameters
Lifting safety relies on hydraulic precision. Review the verified technical specifications of the EPYY11112023 mobile crane leveling ram below to ensure exact fitment.
| Technical Attribute | Specification Details (Model: EPYY11112023) |
|---|---|
| Cylinder Model Number | EPYY11112023 |
| Bore × Rod × Stroke Specifications | Φ140 × Φ120 × 640 (mm) |
| Rated Working Pressure | 30 MPa (High-Pressure Stabilization) |
| Maximum Withstand Pressure | 40 MPa (Extreme Overload Safety) |
| Trip / Operational Stroke | 640 mm |
| Installation Distance (Pin-to-Pin) | 983 mm |
| Total Unit Weight | 123 kg (Rigid Steel Chassis Build) |
3. Structural Principles & CAD Blueprint
The EPYY11112023 functions as a heavy-tonnage, double-acting hydraulic jack. Mounted vertically at the four corners of a truck crane chassis, it converts 30MPa of system pressure into linear pushing force to extend the outrigger pads firmly against the soil or deck.
Hydraulic Performance: Supplying pressure to the Φ140mm bore generates the enormous force required to level a 100-ton machine. The thick Φ120mm rod provides the necessary columnar strength to resist buckling forces, especially when the crane is operating at full boom extension.
Blueprint Anatomy: The CAD drawing details a 983mm installation profile. A key feature is the spherical rod end (SR54), which allows the outrigger pad to swivel and adapt to uneven ground contours, preventing destructive side-loading on the cylinder seals. The integrated manifold ports are designed for zero-drift pilot-operated check valves.
CAD Schematic showcasing the Φ140mm bore architecture and SR54 swivel head integration.
4. Core Advantages of EPYY Stabilization Rams
40MPa Overload Buffer
Outrigger cylinders face violent hydraulic shocks during heavy load maneuvers. Our 40MPa maximum withstand rating ensures the solid steel barrel remains immune to swelling.
Zero-Drift NOK Matrix
Utilizing imported Japanese NOK multi-lip seals to eliminate internal fluid bypass, ensuring the crane chassis maintains absolute level position for days of operation.
Massive Φ120mm Rod
The high-tensile 120mm rod is induction-hardened to provide unparalleled columnar strength, critical for preventing buckling under full load extension.
Swivel Head Integration
Equipped with a specialized SR54 spherical rod end designed to mate with swivel outrigger pads, ensuring safe deployment on sloped or uneven job sites.
5. Elite Structure and Material Craftsmanship
Supporting a multi-million dollar mobile crane requires uncompromised metallurgy. As a dedicated Crane Cylinder Manufacturer, we utilize ST52.3 (E355) high-yield strength seamless steel to ensure the EPYY11112023 withstands decades of service.
The Φ140mm internal bore is CNC skived and roller-burnished to an mirror Ra 0.2µm finish. This minimizes dynamic friction during outrigger deployment, preventing thermal seal degradation even in dusty construction environments.
- Quenched Φ120mm Rod: Forged from high-tensile 45# carbon steel and coated in 50µm of hard chrome for maximum impact and scratch resistance.
- Robotic Joint Welding: Flanges and port blocks are fused via multi-pass robotic SAW welding, validated by ultrasonic NDT for zero porosity.
- 100% Quality Assurance: Every 123kg unit must pass a mandatory 40MPa hydrostatic hold test before dispatch to verify seal and weld integrity.
State-of-the-art hydraulic production lines ensuring 30MPa reliability for crane outriggers.
6. Typical Stabilization Scenarios
🏗️ Truck Crane Jacks
Acting as the primary outrigger jack for mobile cranes, enabling rapid setup and high-tonnage telescopic boom lifting on urban job sites.
🌉 Infrastructure Projects
Establishing the critical base stability required for bridge and turbine construction where chassis horizontal level is mandatory for safety.
🏘️ Urban Logistics
The compact Φ140mm bore is ideal for medium-duty trucks operating in tight city streets where stabilization speed is essential.
The EPYY11112023 providing rock-solid foundation stability for world-class mobile lifting fleets.
7. Frequently Asked Questions (FAQ)
1. Is the EPYY11112023 compatible with Sany or Tadano truck cranes?
2. Why is the rod diameter (Φ120) so close to the bore diameter (Φ140)?
3. What prevents the outrigger from slowly “creeping” down under load?
4. How does the 40MPa surge rating protect the crane?
5. Does the cylinder include integrated pilot-operated check valves?
6. Can the rod end support a pivoting outrigger pad?
7. Is this cylinder treated for coastal or marine environments?
8. How do I bleed air from the stabilization hydraulic circuit?
9. Do you offer bulk pricing for large-scale crane rental fleets?
10. How is a 123kg industrial component shipped internationally?
Establish a Solid Foundation for Your Lifting Fleet
Don’t let drifting outriggers halt your operations. Partner with an elite Crane Cylinder Manufacturer to secure the 30MPa stabilization your chassis mobility demands.
Official Website: tiltcylinder.net | Factory Direct | 100% Pre-Dispatch Hydrostatic Testing
