Long reach boom and arm is a front end working device specially designed and manufactured to expand the working range of the excavator according to the working conditions.
Made of high quality and high strength structural steel, durable and sturdy. We can design and produce two-stage and three-stage extension boom and arm according to customers' requirements, as well as weighted rock boom for excavators of 35 tons or above.
The two-stage extension boom and arm is mainly used for earthwork foundation and deep mat excavation work; the three-stage extension boom and arm is mainly used for the dismantling work of high-rise buildings; the rock boom is mainly used for the loosening, crushing, and dismantling work of weathered rock and soft stone layer.
| Two-stage long reach boom and arm |
| Applicable Excavator(Ton) |
12 |
20 |
25 |
30 |
35 |
40 |
45 |
| Overall length(m) |
10 |
18 |
20 |
22 |
24 |
26 |
28 |
| Weight(Ton) |
2.8 |
4.8 |
5.6 |
6.6 |
7.5 |
8.5 |
9.5 |
| Bucket capacity(m3) |
0.2 |
0.4 |
0.45 |
0.5 |
0.6 |
0.7 |
0.8 |
| Maximum digging height(m) |
7 |
15 |
17 |
19 |
21 |
23 |
25 |
| Maximum excavation range(m) |
9 |
17 |
19 |
21 |
23 |
25 |
27 |
| Maximum digging depth(m) |
6 |
14 |
16 |
18 |
20 |
22 |
24 |
| Transport height(m) |
2.2 |
3 |
3.2 |
3.2 |
3.2 |
3.4 |
3.4 |
| Two-stage long reach boom and arm |
| Applicable Excavator(T) |
Overall length(m) |
Transport height(m) |
Lifting height(m) |
Hydro-cylinder(T) |
Operating weight(T) |
Adding weight(T) |
| 25 |
16 |
3.16 |
14.9 |
20 |
5 |
4 |
| 30 |
18 |
3.30 |
17 |
20 |
6.5 |
4.5 |
| 35 |
20 |
3.30 |
19 |
20 |
7 |
4.5 |
| 40 |
22 |
3.40 |
21.05 |
22 |
7.8 |
5 |
| 45 |
24 |
3.40 |
23.1 |
22 |
8.5 |
5 |
Qingdao Relong Technology specializes in producing multiple types, various sizes of accessory attachment for cranes and excavators.,including design,manufacturing and sale.The factory building covers an area of 10,000-plus square meters.
We have a first-class technical research and development team, strong technical innovation and product development capabilities, highlights the product development philosophy of "safety, pro-environment, fashion. Leading", builds the product R&D platform which is marked by a three-dimensional design system, mechanical analysis system with independent knowledge products and modular expert database. Firmly occupy the commanding height of the product technology. To lead the industry development trend, and promote the healthy and sustainable development of the industry.
Q: What are your factory workshops?
A: Our factory production process includes casting, mechanical process, lathe process, heat treatment, assembly, and test, etc. Warmly welcome to visit & test my factory any time.
Q: How does your factory do regarding quality control?
A: "Quality is a priority. We always attach great importance to quality controlling from the beginning to the end. Our factory has 30 QC.
Q: Is it easy for customers to change the parts by themselves?
A: Yes, the structure is simple, customers can change it very easily. We will also supply you with maintenance tools for free.
Q: Can you install the motor or diesel engine with the pump for us?
A: Yes, we can, it's no problem, we are experienced in this.
Q: We don't know which pump model we need, can you help us?
A: Yes, please tell me your detailed requirements, include liquid, flow rate, head, etc,
My engineers teal will calculate & select the most suitable pump model for you, offer a pump solution for you.
Q: How long can you reply to us if we send an inquiry?
A: Generally within 2 hours, we will send you an official quotation sheet, with price, technology data, performance curve, dimension, etc.
Audited Supplier 
){kind=link}