Good Hydraulic Cylinders – We Make Sure They Work 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. Adantages:
This big QGB cylinder is strong. It uses thick steel and hard chrome rod. It does not bend. The seal keeps oil in, no leak. It has a soft buffer, so the stop is quiet. It lifts 300 mm and gives 350 mm push. It works under high press and holds load long. The body is wide, so it stays cool. Paint stops rust. Ports fit most hoses. It runs hot or cold. It works all day with no break. It is easy to fix. Price is low for the years it gives. It starts fast and saves power. It is quiet and safe. It meets world rules. It ships fast. It fits quick with no extra tools. It lifts and presses smooth. It holds heavy parts steady. It saves time. It is ready for hard jobs. Where It Works:
Use it in metal press, clay press, powder press, big mold press, and heavy lift line.

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