Custom High Strength Long Reach Excavator Extension Arm for CAT Sany Doosan Hitachi Available
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Product Presentation of Excavator Boom
The long reach arm is generally made of Q345B steel, which has good strength and rigidity. The shaft sleeve is generally made of 45#+20# steel, with 40Cr bushing inside, plus lubricating butter, which greatly improves the Reduce the shear force generated by the shaft and the sleeve during frequent rotation, thereby increasing the service life of the shaft sleeve. The extension arm is generally a box-type structure, which is composed of two upper and lower cover plates and two left and right wall panels. The interior must be welded with buffer ribs, and the buffer ribs must have oval holes so that the extension arm can be better released. The stress generated by the arm during welding and working can avoid damage to the long reach arm.
| 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. Metallurgical test
Steel samples are analyzed in depth to look for microstructural defects and different phases present in biphasic and superbiphasic as well as many other welding materials.
What Zhonghe Can Do
1. Applicable for all brand excavators.
2. Color, length, and material can do according to you.
3. Extra pipelines can be added to suit some extra applications.
4. Boom cylinder and stick cylinder can also be supplied if the customer wants.
STRONG PRODUCTION CAPACITY:
We can produce 50 sets of excavator booms per month.
Our annual output of various types of excavator boom arms can reach 600 sets.
1. Online support within 24 hours.
2. Appointment video technical support.
(Our engineers have focused on excavator boom and attachment for over 10 years)
3. Long excavator boom shall be two/three jointed pcs to make it fittable into a container to save shipping costs.
1 year for long reach boom, 180 days for cylinder and linkage, and 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)
Applicable to all brands
Caterpillar CAT320 CAT323 CAT325 CAT329 CAT330 CAT336 CAT340 CAT345 CAT349 CAT352 CAT365 CAT374 CAT385 CAT390
Komatsu PC200 PC210 PC220 PC240 PC300 PC350 PC360 PC400 PC450 PC650
Hitachi ZX200 EX300 ZX240 EX300 ZX330 ZX350 ZX360 ZX450 ZX470 ZX650 ZX670 ZX870
KOBELCO SK200 SK210 SK250 SK260 SK350 SK360 SK380 SK500
Doosan DX215 DX225 DX300 DX340 DX380 DX480 DX500 DX520
Sany SY215 SY235 SY265 SY335 SY365 SY485
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 600sets. 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, 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 min 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.