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. Advantages: This electric lock pin cylinder is like a smart, reliable helper for your machinery. It’s designed to hold things in place securely with just a push of a button. The electric control means it’s easy to operate and precise, so you can lock and release pins effortlessly. Plus, it’s built with high - quality materials to last long and work smoothly. Whether you’re working on a construction site or in a factory, this cylinder makes your job easier and more efficient. Application Scenarios: Imagine you’re on a busy construction site or in a bustling factory. This lock pin cylinder is perfect for holding heavy equipment or machinery in place. Whether you’re securing a crane, stabilizing a scaffold, or locking a large - scale machine, it provides the precision and reliability you need. It’s also great for maintenance tasks where you need to secure equipment safely. If your job involves heavy - duty lifting or moving, this cylinder is your go - to tool for keeping everything stable and secure.

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