Customizable 340 125-686 Hydraulic Cylinder with Dust Cover for Mast

Customizable Installation of Front and Rear Bushings with Dust Cover 340 125-686 Mobile Hydraulic Cylinder for the Mast 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:
Like a good friend who never complains, this cylinder lets you decide exactly how the front and rear bushings sit, so every bolt lines up the first time, no cursing needed. The little dust cover is the polite umbrella that keeps grit out of the works, wiping away the worry of early wear. Together they give the mast a smoother, quieter life—less shake, less rust, more trust. Operators feel the difference in their bones: the lift is gentler on the load and on the nerves, every sunrise shift starts with a confident “we’ve got this.” Application scenes:
Picture dawn on a cherry-picker truck parked beside a row of streetlights: the crew needs the boom to rise steady and stop on a dime while traffic rushes by. Or imagine a farmer rolling across muddy fields, adjusting the loader on the go so bales don’t tumble. This cylinder slips into those moments—construction cranes, pruning platforms, tele-handlers, even a traveling carnival ride—wherever the mast must lift people or freight above the everyday world. It adapts quietly, hugs the pins tight, and keeps the day running on hope, coffee, and clean hydraulics.

item	value
Warranty	1 Year
Showroom Location	not have
Brand Name	Guoyue
Place of Origin	China
	Jiangsu
Pressure	1MPa
Structure	Y
Weight	500
Power	25MPa
Dimension(L*W*H)	950*406*406mm
Rod Diameter	125mm
Maximum Stroke	686mm
Outer Tube Diameter	406mm
Inner Tube Diameter	340mm
Product name	Hydraulic Cylinder
Material	Customized
Usage	Machinery