Heavy-Duty Outrigger Stabilization Ram for Mobile Lifting
Establish a rock-solid foundation for your heavy-lift operations with the EPYY11112020 Frame Support Cylinder. Engineered for crawler crane chassis and outrigger systems, this 262kg actuator delivers 30MPa of stabilizing force. Designed to eliminate structural sway and ensure vertical alignment, it provides the critical balance required for high-tonnage telescopic and lattice boom maneuvers.
1. Comprehensive Product Overview
The EPYY11112020 Frame Support Cylinder is a high-pressure vertical actuator tasked with leveling the crane chassis and managing outrigger deployment. In the heavy lifting industry, “stability is safety”—and this crane outrigger cylinder is the primary mechanism that prevents chassis tipping during heavy-load luffing or tracking.
As a premier mobile crane stabilization ram, the EPYY11112020 is built to handle massive static loads. It serves as a superior aftermarket replacement for global crane brands, optimized for high-cycle deployment where zero-drift holding power is mandatory for site certification and operational safety.
Primary Engineering Applications:
- Crawler Crane Outriggers: Vertical leveling and weight distribution for lattice booms.
- Truck-Mounted Cranes: Rapid stabilization for telescopic boom deployment.
- Heavy Lift Systems: Frame support for modular transporters and SPMTs.
- Piling Rigs: Vertical alignment support for heavy vibration drilling tasks.

2. Exact Technical Parameters
Crane stabilization allows for zero margin of error. Review the verified technical specifications of the EPYY11112020 below to ensure precise chassis integration.
| Technical Attribute | Specification Details (Model: EPYY11112020) |
|---|---|
| Cylinder Model Number | EPYY11112020 |
| Bore × Rod × Stroke Specifications | Φ170 × Φ150 × 800 (mm) |
| Rated Working Pressure | 30 MPa (High-Pressure Outrigger Force) |
| Maximum Withstand Pressure | 40 MPa (Extreme Overload Safety) |
| Trip / Operational Stroke | 800 mm |
| Installation Distance (Pin-to-Pin) | 1140 mm |
| Total Unit Weight | 262 kg (Rigid Chassis Build) |
3. Structural Principles & CAD Blueprint
The EPYY11112020 operates as a double-acting, heavy-tonnage hydraulic jack. Integrated into the crane’s chassis frame, it extends vertically to transfer the machine’s center of gravity onto the outrigger pads.
Hydraulic Performance: Supplying 30MPa to the Φ170mm bore generates massive compressive force. To handle the “rebound” shocks of sudden load releases, the cylinder is engineered to withstand up to 40MPa peak pressure, ensuring the solid steel barrel maintains its integrity under extreme structural stress.
Blueprint Anatomy: The CAD drawing details a 1140mm installation profile. A distinctive feature is the oversized Φ150mm rod, which provides necessary columnar strength to resist buckling when the outrigger is fully extended. The rod end features a specialized socket for swivel outrigger pads, allowing for safe deployment on uneven or sloped terrain.
CAD Schematic showcasing the 1140mm install distance and integrated manifold porting.
4. Core Advantages of EPYY Stabilization Rams
40MPa Overload Redundancy
Support cylinders face violent shocks during crane luffing. Our 40MPa withstand rating ensures the barrel remains immune to deformation under dynamic shock events.
Zero-Drift NOK Matrix
Utilizing imported Japanese NOK seals to eliminate internal bypass, ensuring the crane chassis maintains absolute level position over days of continuous operation.
Massive Φ150mm Rod
The high-tensile 150mm rod is induction-hardened to provide unparalleled columnar strength, effectively resisting the lateral side-loads inherent in heavy-lift setups.
Corrosion-Proof Coating
Finished with multi-layer marine-grade epoxy primer and hard chrome plating, surviving 96-hour neutral salt spray tests for offshore or coastal job sites.
5. Structure and Material Craftsmanship
Supporting a high-reach crane requires uncompromised metallurgy. As an elite Heavy-Duty Outrigger Cylinder Manufacturer, we utilize ST52.3 (E355) high-yield seamless tubing to ensure the EPYY11112020 outlasts the equipment it serves.
The Φ170mm internal bore is CNC skived and roller-burnished to a mirror Ra 0.2µm finish. This minimizes dynamic friction during outrigger cycles, dramatically extending seal life even in dusty construction environments where abrasive grit is prevalent.
- Induction-Hardened Φ150mm Rod: Forged from high-tensile carbon steel and coated in 50µm of hard chrome for maximum impact and scratch resistance.
- Robotic Joint Welding: Port blocks and mounting trunnions are fused via multi-pass robotic SAW welding, validated by ultrasonic NDT for zero porosity.
- 100% Quality Assurance: Every 262kg unit undergoes a mandatory 40MPa hydrostatic hold test before global dispatch.
State-of-the-art testing facility ensuring absolute 30MPa operational reliability.
6. Typical Stabilization Scenarios
🏗️ Crawler Outriggers
Provides the critical vertical leverage to level the crane chassis on rough ground, ensuring the center of gravity remains within safe operational limits.
🚧 Mobile Crane Jacks
Acts as the primary outrigger jack for truck-mounted cranes, enabling rapid setup and high-tonnage telescopic boom lifting in urban sites.
🗼 Piling Rig Stability
Used as chassis support rams for heavy foundation equipment, absorbing high-frequency vibration during drilling while maintaining platform verticality.
The EPYY11112020 providing rock-solid foundation stability for world-class lifting fleets.
7. Frequently Asked Questions (FAQ)
1. Is the EPYY11112020 compatible with major brands like Liebherr or Sany?
2. Why is the rod diameter (Φ150) so close to the bore diameter (Φ170)?
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 support hydraulic circuit?
9. Do you offer bulk pricing for national crane rental fleets?
10. How is a 262kg industrial component shipped internationally?
Establish a Solid Foundation for Your Lifting Fleet
Loose or drifting outriggers are a catastrophic risk. Partner with an elite Heavy-Duty Outrigger Cylinder Manufacturer to secure the 30MPa stability your chassis mobility demands.
Official Website: tiltcylinder.net | Factory Direct | 100% Pre-Dispatch Hydrostatic Testing
