Customized Luffing Cylinder Outrigger Expansion Cylinder for Mobile Crane Cylinder Good Hydraulic Cylinders – We Make Sure Inside Parts The tube follows GUOYUE CD250 style.
Tube steel can be 45#, 42CrMo, or 27SiMn.
Hole is ground to H8 and feels smooth, Ra under 0.4 μm.
Head, base, ears, and piston are only 45# steel.
We do not use cast iron or cast steel. Slow-Down Parts
You can pick fixed bumpers or floating bumpers so the rod slows down safe at any speed or load. Welds
We hit every heavy-load weld with ultrasound.
This takes away most of the stress and makes the weld last longer. Seals
We only use top seals from NOK (Japan), Trelleborg (Sweden), Merkel and GP (Germany).
We do not use local seals. Checks
Each cylinder is tested to GB/T15622-2005 and our own Q/GAKY014-2023.
You get a test sheet and a pass paper. Promise
We give one year cover from ship date.
If it breaks because of how we made it, we fix or swap it for free.
This cylinder is strong. It uses thick steel and hard rod. It does not bend. The seal keeps oil in, no leak. It has many tubes that slide out one by one. It lifts high but stays short
Advantages:She’s the gentle giant who steadies the crane’s dance. Custom-built to unfold the outriggers with a soft touch, her nested sleeves stretch like a morning yawn, giving the crane the wide stance it needs to stay steady. Chrome skin laughs at dirt and dust, while balanced oil paths keep every move smooth and quiet. Day after day she whispers, “I’ll keep you grounded,” and the crane stands tall without a wobble.
Application scenes:Picture a city street at dawn: the mobile crane unfolds its legs with a gentle hiss, thanks to her steady push. Or a construction site where she helps the crane spread its outriggers wide, lifting beams into place without a shudder. From urban high-rises to roadside repairs, she’s the quiet heartbeat that keeps the crane balanced and safe, turning tight spaces into wide-open possibilities.
| Application | Engineering machinery, mine, shipping, metallurgy, water conservancy, offshore, agriculture, etc. |
| Seal | Parker, Merkel, NOK, Hallite,etc. |
| Paint | Red, Grey, Yellow, Black, etc. |
| Material | St52, CK45, 4140, Duplex2205, Stainless Steel 304/316, etc. |
| Certificate | ABS, Lloyds, SGS, etc. |
| Package | Bubble-wrap packing, then in wooden case. |
| Color | choose the color according to customer requirement |
| Core components | Bearing,Pressure vessel,Pump |
| Is it a standard part? | Nonstandard |
| Structure | Piston Type, Plunger Type, Telescopic Type, |
| Power | Hydraulic & Pneumatic |
| Brand | Guoyue |
| Sample | Available |
1. who are we?
We are based in Jiangsu, China, start from 2022,sell to Domestic Market(40.00%),Africa(10.00%),North America(10.00%),South
America(8.00%),Southeast Asia(6.00%),Western Europe(5.00%),Eastern Europe(5.00%),Mid East(5.00%),Central America(5.00%),Eastern
Asia(2.00%),Oceania(2.00%),Northern Europe(1.00%),South Asia(1.00%). There are total about 51-100 people in our office.
2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.what can you buy from us?
hydraulic cylinder,hydraulic cylinder,Single-acting hydraulic cylinder,Double-acting hydraulic cylinder,construction machinery
hydraulic cylinder
4. why should you buy from us not from other suppliers?
Guoyue Hydraulic Equipment Manufacturing (Jiangsu) Co., Ltd., with a registered capital of 50 million yuan, is a private
technology enterprise that integrates research, design, development, production, operation, and service. The company specializes
in the
5. what services can we provide?
Accepted Delivery Terms: FOB；
Accepted Payment Currency:USD,EUR;
Accepted Payment Type: T/T;
Language Spoken:English,Chinese
