
High Quality Edt3200/Edt3500 Hydraulic Rock Breaker Hammer Front/Back Head Assy
2. Primary pressure : 35MPa; test pressure: 40MPa;
Pressure maintaining: 5 minutes and no leaking
3. Nut (4) tightening torque: 7820 N.M~14844N.M
Product Introduction
Our company adheres to the theory of "systematic solution" to create exclusive Mini Excavator Bottom Roller, Rubber Track Shoe, Crawler Crane Idler solutions for our customers. We make full use of the resources of the two domestic and foreign markets and actively carry out cooperation in resource development. The seamless connection of design, R&D and manufacturing ensures the continuous innovation of our products.
Item | Specifications |
Product Name: | Hydraulic Arm Cylinder Assy, Hydraulic Boom Cylinder Assy, Hydraulic Bucket Cylinder Assy |
Certificate: | ISO9001 |
Service | OEM & ODM |
Piston Rod | Chrome or nickel plated, ground & polished piston rod |
Seal Type | Parker, NOK, BUSAK SHAMBAN or as customer's requirement |
Tube | High tensile cold drawn tube, precision honed for extended seal life |
Delivery Time | Based on order quantity. normally 15-30 days. |
Price Advantage | Competitive factory price with guaranteed quality |

Technical Requirements For Cylinder Assy:
1. Inspection standard: JB/5123-91;
2. Primary pressure : 35MPa; test pressure: 40MPa;
Pressure maintaining: 5 minutes and no leaking
3. Nut (4) tightening torque: 7820 N.M~14844N.M
Bolt (16) tightening torque : 209 N.M~288N.M
Not allow any knock, bump and scratch during assembly.
4. Nut (4) hexagon socket sets crews with cup point
5. Clean before assembly and free of burr, overlap, oxide skin, rustiness, turnings, greasy dirt, colorant and dust;
6. Cleanliness: Solid particle contamination classes for test oil should be no more than 19/16
Our Cylinders apply to the following Models
KOMATSU | CATERPILLAR | HITACHI | SUMITOMO | KOBELCO |
PC28MR | E70 | EX55 | SH60 | SK30 |
PC30-8 | E120 | EX60 | SH75 | SK45 |
PC35-7 | E303 | EX100 | SH80 | SK55 |
PC40 | E305 | EX135 | SH100 | SK60 |
PC45-1/5/7 | E306 | EX200 | SH130 | SK75-8 |
PC60 | E311 | EX300 | SH200 | SK120 |
PC75UU | E312 | EX350 | SH220 | SK130 |
PC100 | E313 | EX400 | SH265 | SK200 |
PC130-7 | E315 | EX600 | SH300 | SK220 |
PC200-3/5/7/8 | E318 | EX800 | SH350 | SK250 |
PC300-3/5//8 | E320B/C/D | EX1200 | SH450 | SK330 |
PC350-5/6/7 | E325BL | EX870 | KATO | SK450 |
PC400-3/5/5/7/8 | E329D | ZX35U-5A | HD250 | SK480 |
PC450-6/7/8 | E330B/C/D/L | ZX55 | HD400 | VOLVO |
PC650-8 | E336D | ZX60 | HD550 | EC55 |
PC700-8 | E349D | ZX68 | HD700 | EC60 |
PC850-8 | E390D | ZX70 | HD770 | EC140 |
PC1250-7 | E450 | ZX110M | HD800 | EC200 |
HYUNDAI | ZX120 | HD1430 | EC210 | |
R55 | OTHERS | ZX200 | EC220 | |
R60 | DAEWOO | ZX330-3G | EC240 | |
R80 | SANY | ZX350 | EC290 | |
R130 | XCMG | ZX450 | EC300D | |
R200 | ZOOMLION | ZX870 | EC360 | |
R215 | SUNWARD | EC460 | ||
R225 | EC700 | |||
R290 |
Hydraulic Cylinder Product Testing
We check all of the products, using fully equipped facilities and advanced instruments, regarding the performance, structure, size tolerance, roughness, hardness, pressure and sealing to ensure the hydraulic cylinder quality meets the requirements of our different customers.




Packing and Shipment

Relying on a strict quality management system and an enterprising spirit, we have now become a supplier of high-quality High Quality Edt3200/Edt3500 Hydraulic Rock Breaker Hammer Front/Back Head Assy in China. With our exquisite technology and advanced management experience, we have made our company develop faster. On the basis of our experience in the field and our creative spirit, we will continually find new customer demands and create new value for them.
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