Tunnel Excavation Heavy Machinery 4.65m Length Excavator Tunnel Arm for Hitachi Zx450

• Customization: Available
• After-sales Service: Video Technical Support
• Warranty: 180 Days
• Model NO.: ZX450
• Type: Excavator Arm
• Application: Excavator
• Certification: ISO9001: 2015
• Condition: New
• Transport Package: Container Shipping
• Specification: OEM
• Trademark: Hengwei
• Origin: China Fujian
• HS Code: 84314990
• Production Capacity: 500

Product Description

Tunnel arm
It is a shorter arm than the general arm of the excavator, which is used for digging, crushing, cleaning ... Short arm make it can be flexible operated, can be used in tunnel narrow space to improve tunnel excavation efficiency.




Company Services
1, Long reach boom are use for dredging rivers port construction, railway construction and groundwork construction, with high extensive operation scope, high efficiency and high security.
2, Our company was founded in 2008 with more than 10 years of experience, production line engineers have more than 10 years of data and experience for all brands of excavators designed and customized long range booms.
3, Applicable for all the excavator model,OEM service is also available.
4, Advanced manufacturing process, Technique is in the line with global standards.
5, We have all the installation dimensions of most excavator, we can customize this long reach boom for your excavator.
6, 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. Also the inside have strength plate make it more stronger.
7, If necessary, extra pipeline can be added to suit to some extra application.
8, Stick cylinder of the long boom, can use your original stick cylinder to save the cost, if you need the stick cylinder, we also can prepare for you.
9, Some parts can be consolidated using thicker plate or overlapping another plate  for heavy-duty application.
10, Welding is protective-gas welding, the protective gas is 80% Argon and 20% CO2 mixed. This is golden standard for protective gas. 
11, Before welding, we have use big edge milling machine mill 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 .We can customize the arm for all kinds of excavator as per your request. Just let me know your request. 
13. If you need, some parts can be consolidated using thicker plate or overlapping another plate for heavy-duty application, just let me know.
 14. Not make the bucket for this extender arm as customer request. But if you need us prepare the bucket for you, that's ok.

MODEL	LDB120	LDB200-1	LDB200-2	LDB300	LDB350-1	LDB350-2	LDB450
boom length(mm)	7100	8220	10000	10000	11000	12000	13000
arm length ( mm)	5900	7160	8000	8000	9000	10000	11000
Weight(kg)	3000	4000	4200	5200	6000	6500	7000
Max dig depth(mm)	9000	11340	12200	12200	14500	16100	18000
Max. extensive scope(mm)	12500	15100	17600	17600	19600	21600	23600
Max. dig height(mm)	11300	12510	13500	13720	14920	16100	17300
folding height(mm)	2900	2980	3040	3210	3210	3400	3400
bucket capacity(m3)	0.3	0.5	0.4	0.4	0.5	0.6	0.6
Suit Excavator tonnage(ton)	12	20	20	30	35	35	45

About product technology

Material assurance