Shandong Shengyue Technology Development Co.,Ltd is one of the most professional multi-stage telescopic hydraulic cylinder used for heavy-duty semi-trailer side-tipping dump truck / one-way side-tipping truck manufacturers and suppliers in China. Please feel free to buy high quality genuine auto parts at competitive price from our factory.
Multi-stage telescopic hydraulic cylinder USED FOR Heavy-duty semi-trailer side-tipping dump truck / One-way side-tipping truck
Technical Features Comparison of 5 Specific Models
| Model & Specification | Number of Stages | Total Stroke | Core Physical Performance & Selection Guide |
|---|---|---|---|
| 110 - 3 Stages | 3 | 750 mm | Economical & Classic Choice: With only 3 stages, each telescopic sleeve has a thicker wall, offering excellent rigidity. However, its retracted (closed) length is relatively long. It is ideal for standard chassis frames with ample horizontal mounting space. |
| 110 - 4 Stages | 4 | 750 mm | Lightweight Multi-Stage Model: Compared to the 3-stage version, adding one more stage significantly shortens its retracted length. This makes it perfect for ultra-lightweight semi-trailers with tight space and dense chassis longitudinal beams. |
| 120 - 4 Stages | 4 | 800 mm | Heavy-Duty Large-Angle Model: The 120mm bore diameter guarantees tremendous explosive push force when lifting heavy tonnages, while the 800mm stroke delivers a larger tipping angle. It is a high-frequency specification for aggregate, sand, and ore transport trailers. |
| 120 - 5 Stages | 5 | 750 mm | Compact Ultra-Heavy-Duty Model: Featuring 5 stages of extension, its retracted dimension is compressed to the minimum, while the 120mm base provides massive initial lifting thrust. It is ideal for challenging installation positions where chassis space is extremely limited by air/electrical lines. |
| 120 - 5 Stages | 5 | 800 mm | All-Round Flagship Heavy-Duty Model: This model delivers both heavy-load lifting (120mm bore) and a large dumping angle (800mm stroke), while compressing spatial requirements to the limit via its 5-stage design. It is highly demanded under harsh mining and quarry conditions. |
Vehicle-mounted accessories and hydraulic system components
1. Mounting connections (at both ends): The cylinder base typically features a cross-type universal ball-joint mount or a reinforced clevis/lug designed specifically for high-tonnage dump trucks; this allows for ±5° of multi-directional oscillation during lifting, thereby relieving torsional stress caused by chassis deformation.
2. Pneumatically controlled hydraulic distribution valve (main lift valve): This operates in conjunction with the tractor unit's gear pump and power take-off (PTO) system. It allows the driver to control the cylinder's functions-lifting, intermediate holding, and lowering-via a pneumatic control valve in the cab.
3. High-pressure hoses and limit valve (anti-rollover valve): Strict limits apply to the lifting height to prevent side-tipping. Typically, as the final cylinder stage nears full extension, a stroke limit valve (either cable-actuated or mechanical contact-type) triggers an automatic return of hydraulic fluid, preventing over-extension that could cause the semi-trailer to tip over sideways.
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