• 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

18 Meters excavator boom arm for CAT320D

Place of Origin China
Brand Name ZHONGHE
Certification CE
Model Number 20-27T
Minimum Order Quantity 1set
Price 12600
Packaging Details Plastic wrap and bubble wrap packing
Delivery Time 15`20days
Payment Terms T/T
Supply Ability 50set one month
Product Details
Material Q355B Colour Custom
Condition New Long Reach Boom & Arm Warranty 1 Year
After-sales Service Provided Online Support Bucket Capacity 0.4-0.5CBM
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Spade Boom Stick Long Reach Digger

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Backhoe Dredger Long Reach Digger

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18 Meter Long Reach Excavator Booms

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Product Description

18 Meteres excavator long arm CAT320D SK200 DX200 ZX200 SH200 R920 SY200 liugong 920 spade boom stick for backhoe dredger

 

The video show of dipper arm extension

 

18 Meters excavator boom arm for CAT320D 0


 
Product advantage of long excavator boom and arm:

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°

 

The specification of excavator boom stick
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

 

The factory of excavator boom and stick long introduce 

The long arm of the excavator is made of Q355B steel with good strength and rigidity. The shaft sleeve of the lengthened arm is generally made of 45 # steel, with 40Cr bushing inside, together with the lubricating effect of butter, it reduces the shear force produced when the shaft and the sleeve rotate frequently, thus, the service life of shaft sleeve is increased. The excavator long arm structure is generally a box-type structure, that is, the upper and lower two cover plates, plus the left and right two sidewall are combined to form, the inside needs to be welded with buffer bars, and the buffer bars must be opened with elliptical holes, this can better release the extension arm in the welding work produced by the stress, to avoid damage to the extension arm.

 

18 Meters excavator boom arm for CAT320D 1

 

 

FIRST--CORE CRAFT TECHNOLOGY
 

1. Less maintaince

Using high quality materials, such as Q355B as default, Q690D optional, Niningbo connectors, seamless precision piplines, graphite alloy copper sleeve, strong but light bucket cylinder.

2. Strong and sturdy

Built-in reinforcing ribs. Professional welding skill towards different bearing position. Groove preparation(45° edge-mining) before welding.

 

 

The pictures of excavator long arm for caterpillar

18 Meters excavator boom arm for CAT320D 2

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18 Meters excavator boom arm for CAT320D 5

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