Oem 200-135 °Hot Rolled Strip Gear Rack Swing Rotary Hydraulic Cylinder Telescopic Multi-Stage Cylinder Classification 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 never loses her cool. Custom-built with a 200 mm bore and a 135° swing, this telescopic multi-stage hydraulic cylinder glides like a dancer, turning brute force into precision. Hot-rolled steel gives her the strength to handle heavy loads, while the gear rack keeps her moving smoothly in perfect arcs. Chrome skin laughs at grit and heat, ensuring every swing feels like a gentle hug. OEM fit means she slides straight into your machine—no shims, no swearing. Every day she whispers, “I’ve got this,” and the operator feels the machine run smoothly without a hitch. Application Scenarios: Picture a steel mill at dawn: this cylinder powers the machinery that swings heavy steel plates into place, ensuring they are perfectly aligned before pressing. Or a manufacturing plant where she helps position intricate parts with millimeter precision. From hot-rolled strip mills to heavy machinery, she’s the quiet heartbeat that keeps production running smoothly, turning brute force into gentle precision.

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