• 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

SY245 Mini Excavator Arm

Place of Origin China
Brand Name Zhonghe
Certification CE
Model Number 20m
Minimum Order Quantity 1
Price CNY 79200-88000/Unit EXW
Packaging Details Wooden case or bubble bag
Delivery Time 10-15 working days
Payment Terms T/T, discussion
Supply Ability 60 pcs per month
Product Details
Condition New Long Reach Boom & Arm Warranty 1 Year Long Reach Boom & Arm
After-sales Service Provided Online Support Bucket Capacity 0.6 Cbm
Maximum Digging Depth 14900mm Moving Type Crawler Excavator
Maximum Digging Height 15200mm Max Digging Radius 19200mm
Color Customer's Request Main Material Q345B
Cylinder 20T
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SY245 Mini Excavator Arm


SY365 Mini Excavator Arm


Long Reach Arm Boom For Excavators

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Product Description

30 Ton 36 Ton Crawler Excavator 20 meters Long Boom Long Reach Boom Arm extention for Excavator SY365 SY245


Product description of ZHONGHE excavator long boom


ZHONGHE long fronts for the excavator is made of Q355B(Q690B Optional) steel with good strength and rigidity. The shaft sleeve of the extention arm is generally made of 45 # + 20 # steel, with 40Cr bushing embedded in it. In addition, the lubricating effect of grease reduces the shear force generated by the shaft and sleeve during frequent rotation, thus increasing the service life of the shaft sleeve.

The structure of the long arm of excavator is generally a box type structure, that is, the upper and lower cover plates are combined with the left and right wallboards. The buffer ribs need to be welded inside, so as to better release the stress generated by the excavator long reach fronts during welding and avoid damage.


Arm cylinder use the original one to save cost, we can provide one if needed.


ZHONEHG long arm for excavator's advantages

  • Good quality as better material(Q355B, or Q690B optional), experienced worker and professional engineer.
  • Supply customization service according to customer requirements.
  • Professional R&D team and good design. Max work range and the max digging height are larger as angle of boom and arm can reach 163 degrees.


Working conditions of ZHONGHE long reach fronts for excavator

  •  municipal engineering, subway construction, river dredging, reservoir cleaning and other water conservancy projects.


             Long Reach Boom Arm Accessories
name Unit main material warranty(day)
Boom 1 Q355B 360
Arm 1 Q355B 360
Bucket 1 Q355B 90
Bucket cylinder 1 180
Linkage assenbly 1 Q355B 180
Pin 6 40MuCr 0
High-pressure hose 4 4 layers wire ring 0
Lubrication pipe 5 1 layer wire ring 0
Steel tube 6 20#steel 0
Seal kit





If you want any details, please feel free to contact me, thank you!

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