Hitachi Heavy-Duty Long Reach Boom and Arm for Hitachi Zx870 Excavator

CE-Approved Hitachi ZX870 21.5m Heavy-huty long reach boom and stick on sale









 

Description:

1, Our company established on years 2006, we have over 10 years experience in designing and customize the long reach boom for all brand excavators.

2, Applicable for all the excavator model,OEM service is also available.

3, Advanced manufacturing process, Technique is in the line with global standards.

5, Standard supply include:bucket,linkage,bucket cylinder, 4oil pipe/hose,6pins,lubricating system.

6, Stick cylinder and two boom cylinders o use your original machine cylinder, but if you need we prepare the stick cylinder for you, also no problem, we can make it.

7, If you need, we can add extra pipeline for you, to suit some extra application.such as extra pipeline for hydraulic rock breaker ,hydraulic graplle and quick hitch.

8, Our welding was by maual. Welding is protective-gas welding, the protective gas is 80% Argon and 20% CO2 mixed. This is golden standard for protective gas.

9, The main material of this long boom is Q345B + Q690D, the top and bottom cover plate use Q690D, other place use Q345B. Weldox also optional to suit to your application. Pin's material is 42CrMo4.

10.Some parts can be consolidated  using thicker plate or overlapping another plate  for heavy-duty application. 

11, Before welding, we have use big edge milling machine mill(taper process) the edge of the sheet. So the welding can go to the internal of the steel-sheet and make the structure have higher performance.

12, For all base,joint and other main structure of the long boom, we use boring machine adjust the precision after welding, to avoid the welding-stress leading to big tolerance.

13, The manufacture time about 15 days. Warranty time 6 month after installation.

14, We will also supply parts list for the long reach boom, so it's easy for Maintenance and after-sales service.

Specifications:
 

       

 

 

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