Ultra-Long Stroke Outrigger Extension Ram for Mobile Cranes
Achieve maximum chassis width with surgical precision. The EPYY11112024 opening rack support cylinder is a specialized 24kg front-mounted actuator engineered for the horizontal deployment of truck crane outriggers. Featuring an exceptional 1855mm stroke, it provides the expansive lateral reach required to stabilize high-tonnage telescopic booms on narrow or challenging job sites.
1. Comprehensive Product Overview
The truck crane rack cylinder is the unsung hero of crane safety, providing the foundational horizontal expansion before any lifting occurs. The EPYY11112024 model is a high-efficiency front-mounted actuator designed to push the primary outrigger beams (racks) to their full extension. By establishing a wider support base, this horizontal slide cylinder significantly enhances the machine’s anti-tilt performance.
Designed with a slender Φ40mm bore and a specialized external hard-piping layout, this outrigger extension cylinder is optimized for high-speed deployment without the risk of hydraulic lag. Despite its lightweight 24kg build, it handles a 12MPa working pressure, ensuring that even heavily greased, high-friction rack beams slide into position effortlessly.
Primary Engineering Applications:
- Truck Crane Outriggers: High-reach horizontal deployment for stabilizer racks.
- Concrete Pump Trucks: Front outrigger expansion for high-reach placing booms.
- Firefighting Platforms: Rapid lateral extension for aerial ladders.
- Specialized Drilling Rigs: Precision horizontal alignment for mobile chassis.
2. Exact Technical Parameters
Chassis deployment speed depends on exact hydraulic synchronization. Review the verified technical specifications of the EPYY11112024 below to ensure a perfect fit for your mobile crane.
| Technical Attribute | Specification Details (Model: EPYY11112024) |
|---|---|
| Cylinder Model Number | EPYY11112024 |
| Bore × Rod × Stroke Specifications | Φ40 × Φ30 × 1855 (mm) |
| Rated Working Pressure | 12 MPa (Standard Deployment) |
| Maximum Withstand Pressure | 18 MPa (High Safety Redundancy) |
| Trip / Operational Stroke | 1855 mm (Ultra-Long Extension) |
| Installation Distance (Retracted) | 2057 mm |
| Total Unit Weight | 24 kg (Slender Performance Build) |
3. Structural Principles & CAD Analysis
The EPYY11112024 functions as a long-stroke, double-acting hydraulic actuator specifically designed for front-outrigger box housing. By utilizing a slender Φ40mm bore, the cylinder minimizes the volume of hydraulic oil required, allowing for the rapid out-and-in cycles needed on high-tempo urban jobsites.
Mechanical Engineering: To push heavy steel racks horizontally over 1.8 meters without sagging, the cylinder utilizes a Φ30mm high-tensile rod. This rod is induction-hardened to maintain columnar strength during the full 1855mm stroke, resisting the buckling forces caused by friction between the outrigger beam and the chassis housing.
Fluid Routing Design: As shown in the CAD blueprint, the EPYY11112024 features external hard piping. This routing minimizes flexible hose movement within the congested outrigger box, reducing the risk of hose abrasion and failure during repetitive sliding cycles. The integrated clevis mounts are designed for standardized mobile crane pins.
CAD Schematic highlighting the 1855mm stroke and precision manifold porting.
4. Core Advantages of Our Rack Rams
1855mm Extended Reach
Provides the critical lateral extension required to establish a massive safety footprint, allowing for higher crane lifting capacities.
18MPa Surge Buffer
Safety is critical in mobile logistics. Our 18MPa withstand rating prevents barrel distortion during sudden dynamic load shifts.
Integrated Hard Piping
Specialized external fluid routing reduces hose entanglement within the outrigger box, dramatically lowering maintenance downtime.
24kg Slender Precision
The ultra-compact build minimizes parasitic weight on the front axle, maintaining the crane’s optimal center of gravity for travel.
5. Structure and Material Craftsmanship
Horizontal outrigger deployment is a high-wear cycle. As a premier Truck Crane Cylinder Manufacturer, we utilize uncompromised metallurgy to ensure the EPYY11112024 outlasts the crane chassis it serves.
The Φ40mm internal bore is milled from ST52.3 precision seamless steel. The internal surface is roller-burnished to a mirror Ra 0.2µm finish, ensuring absolute zero internal bypass and minimal seal wear over thousands of deployment cycles.
- Quenched Φ30mm Rod: Forged from high-tensile 45# carbon steel, induction-hardened, and coated in 40µm of hard chrome for maximum scratch resistance.
- Japanese NOK Sealing: Equipped with multi-lip polyurethane seals that maintain their integrity even during extreme temperature fluctuations.
- 100% Quality Assurance: Every 24kg unit must pass a mandatory 18MPa hydrostatic hold test before being cleared for global dispatch.
State-of-the-art hydraulic production lines ensuring 12MPa operational reliability.
6. Typical Stabilization Scenarios
🏗️ Truck Crane Outriggers
Providing the horizontal muscle to slide heavy outrigger beams into position before the vertical leveling jacks are engaged.
🚒 Aerial Firefighting
Enabling ultra-rapid horizontal deployment of stabilizing racks for ladder trucks operating in high-wind urban environments.
🌉 Concrete Pump Trucks
Ensuring the front outrigger arms reach their full 1.8-meter extension to support the heavy placing boom during bridge deck pouring.
The EPYY11112024 enabling rapid and synchronized horizontal outrigger extension for mobile fleets.
7. Frequently Asked Questions (FAQ)
1. Is the EPYY11112024 compatible with standard truck crane outriggers?
2. Why is external hard piping used instead of standard flexible hoses?
3. What is the significance of the 18MPa maximum withstand pressure?
4. Does the slender Φ30mm rod bend over the 1855mm stroke?
5. Can the seals withstand high hydraulic friction heat?
6. How do I bleed the air from the outrigger horizontal circuit?
7. Is this cylinder serviceable by our local mechanic?
8. What type of hydraulic oil is recommended?
9. Do you offer B2B pricing for regional crane dealers?
10. How is a 24kg precision component shipped internationally?
Establish Rock-Solid Stability for Your Mobile Fleet
Don’t let a jammed outrigger rack halt your lifting operations. Partner with an elite Truck Crane Cylinder Manufacturer to secure the 12MPa deployment power your chassis mobility demands.
Official Website: tiltcylinder.net | Factory Direct | 100% Pre-Dispatch Hydrostatic Testing
