Two Section 40-47T Stick Extension Long Reach Komatsu Excavator Attachments
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Product Presentation of Excavator Boom
The long reach arm is used for construction transportation of soil, sand, concrete, etc., highway slope repair, river dredging and dredging, and earthwork excavation operations such as building foundations, rivers, and deep trenches. Due to the relatively high cost of the second section of the extended arm, in order to save costs, a sleeve arm product has appeared on the market, which is to add a section of sleeve arm to the original forearm of the excavator, and one section of the sleeve arm is set on the original forearm of the excavator. The other end is equipped with a bucket (generally the bucket capacity will be 1/3 smaller than the original bucket) for operation.
| Material Use
|| Q345B, Q550D, Also can customize to customer requirements
| Product Warranty Period
|| 6 months,9 months,1 Year
| Product Size
|| Most lengths can be 34M, According to customer requirements, Any excavator model
Advantages of Zhonghe Excavator Long Arm
1. Less maintenance
Using high quality materials, such as Q355B as default, Q690D optional, Niningbo connectors, seamless precision pipelines, graphite alloy copper sleeve, and strong but light bucket cylinder.
2. Strong and sturdy
Built-in reinforcing ribs. Professional welding skills towards the different bearing positions. Groove preparation(45° edge-mining) before welding.
3. Tolerance within 5-10um
Hole drilling tolerance is within 5-10um, ensure accuracy.
4. 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.
5. High work efficiency and saving fuel
Lighter while taking into account the quality, not only ensures work efficiency but also saves fuel.
6. Fillet weld testing
We can determine the quality of a fillet weld joint by performing NDT and mechanical testing. Macro examinations and fillet fracture tests give a good view of the profile, fusion, and penetration, and reveal whether there are any imperfections, such as porosity or inclusions, in the weld. These tests are used to test the welder’s ability to weld a fillet weld.
What Zhonghe Can Do
1. Applicable to all brands of excavators.
2. Color, length, material can be made according to you.
3. Additional piping can be added to accommodate some additional applications.
4. Boom cylinders and stick cylinders can also be provided according to customer needs.
Strong production capacity:
We can produce 50 sets of excavator arms per month.
The annual output is 600 sets of various types of excavator arms.
1. Online support within 24 hours.
2. Make an appointment for video technical support.
(Our engineers focus on excavator arms and attachments for more than 10 years)
3. The long arm of the excavator should be a two-section/three-section joint, which can be loaded into a container to save freight.
1 year for the long arm, 180 days for the cylinder and connecting rod, 90 days for the bucket.
All parts you needed are included.
Long Reach Kits Are Fully Compatible with ZHONGHE Excavator Standard Buckets, and Cylinder.
Excavator long boom
Excavator long arm
Specification of Excavator Boom Arm
Maximum removal height(m)
|Maximum Digger Radius(C)(mm)
|Maximum Digger Depth(C)(mm)
|Maximum Unloading Height(E)(mm)
|Maximum Digger Height(F)(mm)
Kaiping Zhonghe Machinery Manufacturing Co., Ltd, is a manufacturing and trading combo that specializes in customizing different kinds of excavator boom arms and attachments We have more than 14000m' steel structure standardization workshop with a large number of high precision processing equipment as well as a strong and cohesive team. At present, there are more than 60 experienced technical staff, 30 welding workers with over 7 years of experience, 15 senior designers, and a high-tech R&D team.
Our annual output of various types of excavator boom arms can reach 600 sets. We supply products with high quality and moderate prices, which sell well in more than 40 countries and areas.
We adhere to" Merit Quality, Sincerity Management, and Customer Satisfaction", and honestly greet customers from home and abroad to negotiate and cooperate with us.
FAQ of excavator long arm
Q1: Why not have boom and stick cylinders in the plan?
A1: First, the whole long arm is lengthening, but the boom just lengthening from its middle sleeve to its end, so the original boom and stick cylinder can be used. Second, using the original parts can save you cost.
Q2: How long is the boom arm can min excavator be configured with? Whether it is necessary to increase the counterweight?
A2. Generally speaking, the 30-40 excavator longest arm suggests to be 8 meters, and can configure 0.1 cbm bucket, with no need for an extra counterweight. 55 excavator's longest arm suggests to be 12 meters, which can configure 0.1-0.15 cbm bucket, which needs 0.5 ton extra counterweight. 60-80 excavator longest arm suggests to be 12 meters, can configure 0.15-0.25 cbm bucket, need 0.5-0.7 ton extra counterweight.
It is not recommended to extend boom arm to longes the t length as mini excavator is easy to slosh.
Q3: How long will it take tall an excavator long reach boom?
It depends on the installer and machine size.
Usually disconnecting the original boom arm, stick cylinder, then pin the new one is okay.
Kindly remind, use to prepare several containers to fill the oil before disassembling.