• Kaiping Zhonghe Machinery Manufacturing Co., Ltd
    David Cordova
    High quality excavator boom with good price! I like it very much, so I brought 2 units of demolition arm again. The whole process went smoothly. Next time I need to buy excavator arms, I will buy them from here.
  • Kaiping Zhonghe Machinery Manufacturing Co., Ltd
    Vaina Conroy
    Very happy with the service provided. All questions were answered promptly. The product was as described and arrived on time. Great packaging. The biggest surprise was that the welding quality of the product exceeded my expectations.
  • Kaiping Zhonghe Machinery Manufacturing Co., Ltd
    William Hollister
    Very helpful. The excavator long reach arm I purchased are solidly built, well made and I have no doubt they will last for many years.
Contact Person : Nina Liu
Phone Number : +8615362217237
WhatsApp : +8615362217237

Hydraulic Excavator Boom Arm

Place of Origin China
Brand Name ZHONGHE
Certification CE
Model Number 20~22T
Minimum Order Quantity 1set
Price 13200
Packaging Details Plastic wrap and bubble wrap packing
Delivery Time 15`20days
Supply Ability 50set one month
Product Details
Color Customized Part Name Boom/Arm/Bucket Cylinder
Type Hydraulic Oil Cylinder Material Q345B+Q460D
After-sales Service Provided Online Support Condition Parts
Bucket Capacity(m3) 0.4
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Hydraulic Excavator Boom Arm


Q460D Excavator Boom Arm


Hitachi Hydraulic Excavator Arm

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Product Description

CE-approved New OEM Quality Extended Arm Long Excavator Long Reach Boom and Stick Arm for different size Excavatorcustom size 30-36T excavator long reach boom for Hitachi/Doosan/Cat/Sany


Our advantage:

01 Use Q355B material,
02 Adopts precision steel pipeline
03 Adopt alloy copper sleeve big arm base
04 Two layers groove welded to ensure
05 Double quality inspection before leaving
06 The tolerance of position size within 1 mm
07 Angle of boom and arm can reach 163°



Lengthening arm production:

The computer 3D aided design system does stress analysis and simulates motion

In addition, the proficiency of processing equipment, staff skills and practical application knowledge, experience

Material selection, production process, etc


Excavator Ton Total Length(mm) (A)Boom(mm) (B)Arm(mm) Maximum Digging Radius(mm) Maximum Digging Depth(mm) Maximum Unloading Height(mm) Maximum Digging Height(mm) Bucket Volume(cbm) Cylinder(ton)
11-15T 13000 7250 5750 11200 9000 7550 9350 0.15-0.3 12T
20-25T 15400 8220 7180 14500 11300 10400 12600 0.4-0.6 12T
20-30T 18000 10000 8000 17300 13000 17200 14000 0.4-0.7 12T
35-40T 20000 11000 9000 19200 14900 12900 15200 0.6-1.2 12T
40-45T 22000 12000 10000 21300 16000 14000 17000 0.5-1 20T
40-50T 24000 13000 11000 23000 17900 15200 18100 0.5-1.1 20T


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