Zhonghe 20 Ton 18m Long Reach Excavator Booms Arm For CAT320D , Long Reach

Product Specification

Zhonghe 20 Ton 18m Long Reach Excavator Booms Arm For CAT320D

1,Material: the material of the big and small arms is Shaogang q355b, the iron pipe on the arm is national standard cold drawn seamless pipe, the pin shaft is 40Cr, the high-pressure hose is a joint-venture pipe with 4 layers of steel rings, the grease pipe is a single-layer hose, and the bushing driven into the base of the boom is graphite alloy copper sleeve.

2. Configuration: one set of big and small arms, six pin shafts, four high-pressure hoses, three grease pipes, one set of connecting rod assembly, one bucket cylinder and one bucket.

3. Product advantages: plasma cutting, machine milling, robot welding, boring after welding, assembly line production operation, and better quality assurance. It can be customized according to the working conditions to meet the construction needs of different users. The opening angle of the large and small arms can reach 163 degrees, and the excavation radius and height are larger.

4. Working conditions applicable to the lengthening arm: Municipal Engineering, subway construction, river dredging, reservoir cleaning and other water conservancy projects

Our Long Reach Booms Sticks fit most market models, Include but not limit:
Komatsu Excavator Model: PC160LC-8, PC200, PC210, PC228, PC220 PC270, PC300, PC350, PC450, PC600, PC850, PC1250
Caterpillar Excavator Model: CAT320, CAT323, CAT326, CAT329, CAT330, CAT335, CAT336, CAT349, CAT352, CAT374, CAT390
Hitachi Excavator Model: ZX210, EX200, EX220, EX330, EX350, ZX200, ZX240, ZX330, EX350, EX400, ZX470, ZX670, ZX870, EX1200, EX1900
Volvo Excavator Model: EC220, EC235, EC250, EC300, EC350, EC355, EC380, EC480, EC750
Doosan Excavator Model: DX225, DX235, DX255, DX300, DX350, DX420, DX490, DX530, DX800
Kobelco Excavator Model: SK200, SK210, SK220, SK250, SK260, SK300, SK330, SK350, SK380, SK460, SK500, SK850
Sumitomo Excavator Model:?SH210, SH225, SH240, SH300, SH330, SH350, SH460, SH480, SH500, SH700, SH800
Hyundai Excavator Model: R200, R210, R220, R290, HX220, HX235, HX260, HX300, HX330, HX380, HX430, HX480, HX520, R1200

Our production process:
1. The extended arm plate is precision-cut using a plasma cutting needle to ensure accuracy.
2. Before welding, the plate edges are milled (tapered) using a large edge milling machine. This allows for deep penetration of the weld into the steel plate, enhancing the overall performance of the structure.
3. Flaw detection tests are conducted using specialized instruments after welding.
4. After welding, a double-sided large-scale floor-standing boring machine is employed for precision boring. This ensures the long-reach arm concentricity during operation and extends its service life.
5. Following grinding, a sandblasting process is carried out to achieve a specific level of roughness and cleanliness on the long arms. This enhances their strength, hardness, and corrosion resistance.

Precision:
1. Tolerance within 5-10um
Hole drilling tolerance is within 5-10um, ensure accuracy.
2. Reach deeper and higher
The max work range and the max digging height are larger as the angle of the boom and arm can reach 163 degrees.
3. High work efficiency and saving fuel
Lighter while taking into account the quality, not only ensures work efficiency but also saves fuel.


 




 
Usually use 40GP container to load product !
 
Our factory in Guangdong Province produce Excavator extended arm , Contact us to get best price !
WhatApps : +8618127591702
Email : sophia@excavatorboomarm.com