Jining Union Machinery And Parts Co.,Ltd is very professional in doing cylinders for Excavator. The arm cylinder, bucket cylinder and boom cylinder are for all brands of excavators.
We use the cold draw seamless steel tubes with strong honing technique.Length of the cylinder can reach up to 3m with diameter from Ø40~Ø400.The piston rods are made of 40Cr with treatment of quality adjustment followed by high frequency quenching and then hard chrome plating,which makes it flexible inside and hard outside with high smooth surface.The piston rod's adopt quality NOK seals and diameters are from Ø5~Ø140.The quality of our cylinder is ensured by high-pressure test bed. And we have successfully passed ISO 9001: 2000 in aspect of our production and sales of our hydraulic fittings. We also can supply the cylinder parts to our customers such as the: cylinders,rodpistons,cylinders,headcylinders,plungers,nuts,etc.
Excellent Production Process for the hydraulic cylinders
1.Raw material process
2.Tempering steel
3.Induction hardended steel
4.Chrome plating rod
5.Rod finish machining
6.Painted rod
We can supply arm cylinder, bucket cylinder and boom cylinder for the following excavators:
For Komatsu PC30 PC40 PC45 PC60 PC75 PC100 PC120 PC130 PC200 PC220 PC240 PC300 PC350 PC400 PC450
For Cater E70B E110 E120B E215 E235 E307 E311 E312 E322 E180 E240 E200B E320 E300 E300B E330 E325
For DAEWOO DH55 DH130 DH180 DH200 DH220 DH280 DH300 DH320 DH330 DH360 DH400 DH450 DH500 For HITACHI EX30 EX40 EX60 EX100 EX120 EX200 EX220 EX270 EX300 EX350 EX400 EX450 ZX230 ZX240 ZX250 ZX270 ZX280 ZX330 ZX350 ZX370 ZX450 ZX470 ZX520 ZX600 ZX650 ZX670 ZX800
For HYUNDAI R55 R60 R70 R80 R110 R130 R150 R170 R190 R200 R205 R210 R220 R230 R290 R300 R360 R450
For KATO HD140 HD250 HD400 HD450 HD550 HD700 HD820 HD850 HD880 HD900 HD1220 HD1250
For KOBELCO SK60 SK100 SK120 SK200 SK220 SK230 SK250 SK280 SK330 SK350 SK400 SK450
For SUMITOMO SH70 SH100 SH120 SH160 SH200 SH220 SH240 SH260 SH265 SH280 SH300 SH330 SH340 SH350 LS2650 LS2800
