Oem 140-180 Degree Rotating Hydraulic Cylinder for Excavator
Double-Acting 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 steel neck that lets an excavator nod, shake, and wave.
Born to swivel 140-180° under full load, she moves like a gentle
head-turn—no jolt, no screech. Double-acting muscles push and pull
with equal grace, while chrome skin laughs at mud and salt. OEM
curves bolt straight onto the boom—no shims, no midnight swearing.
Day after gritty day she whispers, “Look where you need, I’ll
turn,” and the operator feels the world pivot around his fingertip.
Application scenes:Picture sunrise on a city dig: she swings the bucket past parked
cars, kissing the curb without a scratch. Or a riverside job where
she tilts the arm to lay a pipe as gently as tucking in a child.
From trenching streets to sculpting ponds, she’s the calm swivel
that keeps iron graceful and nerves intact.
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 |
