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Dongguan Haide Machinery Co., Ltd
Dongguan Haide Machinery Co., Ltd Excavator Attachments & Long reach boom and Logistics equipments supplier
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High Efficiency 20 Meter Excavator Extension Arm Main Sheet Material

Dongguan Haide Machinery Co., Ltd
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Dongguan Haide Machinery Co., Ltd
City: Dongguan
Province/State: Guangdong
Country/Region: China
Tel: 86-769-88708111
Contact Person:
Ms Irene Guo

High Efficiency 20 Meter Excavator Extension Arm Main Sheet Material

Brand Name : Haide
Model Number : LDB350-1-R330-20
Certification : CE/ISO
Place of Origin : China
MOQ : 1kit
Price : Negotiation(EXW,FOB or CIF price)
Payment Terms : T/T or L/C
Supply Ability : 30 kits per month
Delivery Time : Within 25 days after received your payment
Packaging Details : Film
Excavator model : Hyundai R330LC-9
Total Length : 20 meter
Boom Length : 11 meter
Stick Length : 9 meter
Counter weight : 4 ton
Bucket Capacity : 0.65 cum
Stick cylinder : Use original
Warranty : 6 months after installation
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High Efficiency 20 Meter Excavator Extension Arm Main Sheet Material


1. We specialized in customizing all kinds of long boom for all kinds of excavators.

3. We have detailed dimension of Hyundai R330LC-9 excavator,we can customize long reach boom for your Hyundai R330LC-9 excavator.

4. Main sheet Material of this Hyundai R330LC-9 long reach boom / arm is Q345B + Q690D,the top and bottom cover plate of boom and stick is Q690D,other sheet is Q345B,Pin’s material is 42CrMo4.

5. Welding is protective-gas welding,the protective gas is 80% Argon and 20% CO2 mixed.This is golden standard for protective gas

6. For all base,joint and other main structure of the long boom,we use boring machine adjust the precision after welding,to avoid the welding-stress leading to big tolerance.

7. We will prepare lubricant pipe system,hydraulic system,bucket,bucket cylinder,counter weight,linkage,pins and hoses for the long boom we supply you.

8. The long reach boom,stick cylinder usually use original stick cylinder to save the cost,if you need the stick cylinder,we also can prepare for you.This Hyundai R330LC-9 long boom,we prepared the stick cylinder as customer required.

9. We can prepare 1 kit or 2 kit (each kit have 2 pipe lines) extra auxiliary pipe line for the attachments of the long reach boom.

This R330 long reach boom,we prepare 1 kit extra pipe for breaker.

10. We prepare 4 ton counter weight for this Hyundai R330LC-9 long boom.


Boom length

11000 mm

Arm length

9000 mm

Max extensive scope

19600 mm

Max dig depth

14500 mm

Max dig height

14920 mm

Max dig depth in vertical wall

12680 mm

Max unloading height

12300 mm

Min rotate radius

5200 mm

Bucket volume

0.65 m3

Counter weight

4 ton

Folding height



1. Customer use this long reach boom / arm for dredging sea.

2. This kit long reach boom / arm was export to Qatar together with other two kit long reach boom as follow:

-Hyundai R450 25 meter long reach boom

-Volvo EC480 25 meter long reach boom

Delivery picture:

Product Tags:

excavator long reach boom arm


high reach arm

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High Efficiency 20 Meter Excavator Extension Arm Main Sheet Material Images

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