• 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

SE470 Long Boom Arm

Place of Origin China
Brand Name Zhonghe
Certification CE
Model Number 20m
Minimum Order Quantity 1
Price CNY 86400-96000/Unit EXW
Packaging Details Wooden case or bubble bag
Delivery Time 10-15 working days
Payment Terms T/T
Supply Ability 60 pcs per month
Product Details
Color Refer To The Model, Customized Part Name Boom/Arm/Bucket Cylinder
Main Material Q355B(Q690B Optional) Bucket Capacity(m3) 0.45-2.3cbm
Bucket Cylinder Included Stick/Arm Cylinder Optional
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Product Description

Hot 40-47 ton excavator yellow 20m long boom excavator quality excavator long reach boom arm for ZX470 SE470 SY475

Catalogue ZH excavator boom arm.pdf


ZHONGHE Excavator Extension Arm introduction

1. High Quality MaterialExcavator boom arm are made of Q355B(Q690B optional), hydraulic pipe use the national standard precision seamless pipe, pin shaft with 40CR, high-pressure hose with 4 layers of steel ring, butter hose is a single layer, the bushing driven into the arm base is a graphite alloy copper sleeve.

2. Configuration: Excavator long reach fronts set, 6 pins, four high-pressure hoses, 3 butter pipes, linkage assembly, bucket cylinder, a bucket, seals.

3. Product advantages:

A. plasma cutting, machine milling edge, robot welding, boring after welding, assembly line production operations, quality guaranteed.

B. ZHONGHE long arm can be customized according to the working conditions, to meet the needs of different users

C. fronts design angle can reach 163 degrees, which larger excavation radius, depth and height.

4. Applicable conditions: subway construction, river dredging, reservoir cleaning, and other engineering.


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             Long Reach Fronts for Excavator 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





1. Online support within 24 hours.

2. Appointment video technical support. 

   (Our engineers have focused on excavator boom and attachment over 10 years)

3. Long excavator boom shall be two/three jointed pcs to make it fittable into container to save shipping cost.



1 year for long reach boom, 180 days for cylinder and linkage, 90 days for bucket.


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Recommended Excavator Attachments

1. Long reach excavator boom

2. Excavator telescopic boom

3. Demolition boom

4. Excavator rock bucket

5. Excavator tilting bucket

6. Hydraulic grabs for excavators



Your project can run smoothly with the right equipment. When choosing your machinery, consider these factors:

1. Working height: Find out the maximum height of the site you are demolishing. This measurement will help you determine if you need high-reaching equipment.
2. Ground conditions: Before you start working, check the ground conditions with an engineer. The ground’s weight capacity and security will impact which equipment is safe to use on-site.
3. Attachments: Research which attachments will work for your project and ensure you have them readily available.
4. Size: Always make sure you can safely use the attachment within a safe working distance. If you have to extend a crane or excavator’s arm fully, you might need to get a larger version.
When you pay attention to those aspects, you can narrow your search for the right tool.



Purchasing Long Excavator Boom Process in ZHONGHE

1. Send us your excavator model and working surroundings.
2. We will give you quotation with professional advice of long reach arm combination RFY within two working days.
3. We will send you sumilation parameters after you confirm the step 2.
4. Conduct PIs and sign a contract.
5. A video inspection after production before shipping
6. Delivered.


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Company profile


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Please do not hesitate to contact us for any details, Thank you!


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