Oem Factory Price Long Stroke Hydraulic Cylinder 250 180-1210 Hard Chrome Plated Piston Rod for Construction Machinery Dredging Equipment 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:
Meet the quiet giant that never flinches. A 250 mm heart and 180 mm rod give her the muscle to push mountains, yet the 1 210 mm stroke stretches out like a lazy yawn—long, smooth, unhurried. Hard-chrome skin laughs at salt spray, grit, and accidental knocks, while OEM curves bolt straight onto your boom, no shims, no midnight cursing made-in-china.com . Inside, balanced oil paths keep every move silky, saving rollers and nerves. Day after muddy day she whispers, “Stretch far, I’ve got the load,” and the crew quits counting heartbeats. Application scenes:
Picture sunrise on a cutter-suction dredger: she slides the draghead down through silt and coral, sipping riverbed treasure while herons watch from the bank made-in-china.com . Or a quarry crane swinging a 30-ton bucket, her chrome rod glinting like a lighthouse in the dust. From canal clean-ups to offshore wind-farm scour protection, she’s the patient arm turning cramped decks into wide-open possibility, keeping tomorrow’s waterways—and today’s dreams—flowing smooth.

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