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Cylinder

    Our advantage: 
    •The cylinder and piston rod choose high quality 45# alloy steel, with high strength 
    •The sealers adopt imported Japan NOK sealer 
    •With overall tempering and surface high-frequency quenching 
    •After surface polishing the roughness can reach Ra0.08 um

According to customer requirements, we can produce various kinds of excavator hydraulic oil cylinders. Product features: Our company hydraulic oil cylinder is specially researched and manufactured after absorbing Japan KOMATSU and Japan KAYABA technology, with the big working pressure. Reliable performance, convenient installation, easy to danger, can take buffer device etc features. The piston rod all overall hardening and tempering, after surface quenching plating with hard Chrome, high surface Glossiness (After overall tempering and surface high-frequency quenching, and then external surface hard chrome planting, make it hard both internal and external with smooth surface) 

Our advantage: 
• The cylinder and piston rod choose high quality 45# alloy steel, with high strength 
• The sealers adopt imported Japan NOK sealer 
• With overall tempering and surface high-frequency quenching 
• After surface polishing the roughness can reach Ra0.08 um 

Technological process: 
MATERIALS FEELING — TEMPERING — CYLINDRICAL LATHE CUTTING — HIGH-FREQUENCY QUENCHING—CYLINDRICAL GRINDING—HARD CHROME PLATING—EXTERNAL GRINDING 

(TOTAL QUALITY MANAGEMENT) 
OUR PRODUCTS HAVE FULL PROCESSES EXPERIENCED INSPECTION BEFORE REACHING OUR CUSTOMERS: I
QC(INCOMING MATERIAL QUALITY CONTROL) --- IPQC(IN-PROCESS QUALITY CONTROL) --- FQC(FINAL QUALITY CONTROL) --- QQC(OUTPUT QUALITY CONTROL) 

Our Cylinders apply to the following Models: 
KOMASTU:PC40-5;PC60-2/5/6;PC100-3/5/6;PC120-3/5/6;PC200-1/2/3;PC200-5/6/7/8;PC220-2/3/5/6/7/8;PC300-3/5/6/7;PC400-3/5/6;PC450-6,ETC 
HITACHI:EX60-2/3;EX100-1;EX120-1/2/3/5;EX200-1/2/3/4/5/6/7;EX200-1/2/3;EX220-2/3/5;EX300-3/5;EX350-5;EX400-1/2//3/5;ZAXIS200;ZAXIS210;ZAXIS270;ZAXIS330;ZAXIS360,ETC 
HYUNDAI:R55;R60-5/7;R130;R200-5;R210-5;R210LC-3/7;R220-5;R225-7;R280;R290;R305-7;R320LC-7;R360;R450-5,ETC CATERPILLAR:E70;E110;E120;E120B;E200B;CAT311;CAT312/B;CAT320/B/C/DCAT322;E300/B/C/D;E330/B/C/D/L;E325/B;ETC 
KATO:HD250-7;HD307;HD400-1/7;HD450-5/7;HD550-1/7;HD700-2/5/7;HD800-7;HD820/3;HD900-5/7;HD1250-7;HD1430;HD1880,ETC 
SUMITOMO:SH60;SH100;SH120-3;SH200-A1/A2/A3;SH200-3G;SH300;SH300-A2;SH330-A3;LS280EJ;LS280FJ,ETC 
DOOSAN:DH55;D60-7;DH130;DH200-2/5;DH220-3/5/7;DH225-7;DH280;DH290;DH300/5/7;DH320,ETC
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