1,hydraulic cylinder short introduction.

we supply all kinds of hydraulic cylinders for excavator including Boom cylinder,Arm cylinder and Bucket cylinder, which are applicable for  Hitachi, Komatsu,Koblco, Carter, Sumitomo, Daewoo(Doosan),Hyundai,Kato,and Samsung excavators as well as othe brands.  we can also be custom processed according to customer samples and data.

2,Hydraulic cylinder production technology and specification .

 (1,The cylinder use C45 cold drawn seamless steel pipe,the inner wall of the cylinder barrel rolling process after boring to ensure the wear resistance of the inner wall of the cylinder barrel and straightness.

 (2,length of the cylinder can reach up to 3m with diameter from Φ 40- Φ 400.

 (3,The piston rods are made of C45 with IF hardened and hard chrome plated surface hardness of Rockwell 55 degrees. That makes it flexible inside and hard outside with high smooth surface.

 (4,The quality of our cylinder is ensured by high-pressure test bed.