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Doosan Excavator Long Reach Boom and Arm for Doosan Dx380/Dx480/Dx520

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Specifications

Description

Specifications

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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            Doosan excavator long reach boom, long arm for DX380/DX480/DX520, excavator long arm attachment
                                                      

Total Length:	13000-24000 Mm	Weight:	3000-7000 Kg
Max Dig Depth:	9000-18000 Mm	Max Extensive Scope:	12500-23600 Mm
Max Dig Height:	11300-17300 Mm	Folding Height:	2900-3400 Mm
Bucket Volume:	0.3-0.6 M³	Excavator Tonnage:	10-45 Ton
Boom Material:	Q345B Steel	Heavy Duty Material:	Q690D Steel
Argon Content:	80%	Carbon Dioxide Content:	20%
Pins Quantity:	8 Units	High Pressure Hoses:	4 Units
Steel Tube Quantity:	4 Units

Total Length:	13000-24000 Mm
Weight:	3000-7000 Kg
Max Dig Depth:	9000-18000 Mm
Max Extensive Scope:	12500-23600 Mm
Max Dig Height:	11300-17300 Mm
Folding Height:	2900-3400 Mm
Bucket Volume:	0.3-0.6 M³
Excavator Tonnage:	10-45 Ton
Boom Material:	Q345B Steel
Heavy Duty Material:	Q690D Steel
Argon Content:	80%
Carbon Dioxide Content:	20%
Pins Quantity:	8 Units
High Pressure Hoses:	4 Units
Steel Tube Quantity:	4 Units

Description

Doosan Excavator Long Reach Boom and Arm for Doosan Dx380/Dx480/Dx520

Doosan Excavator Long Reach Boom and Arm for DX380 / DX480 / DX520

Long reach boom and arm assemblies engineered for Doosan DX380, DX480 and DX520 excavators. Each configuration extends working range for deep excavation, dredging and long-distance material handling while retaining compatibility with the machine's original hydraulic cylinders.

Standard Supply and Specifications

Long boom	One unit	Long arm	One unit
Bucket cylinder	One unit	Standard bucket	One unit
Pins	8 units	"H" linkage	One set
High pressure hoses	4 units	Steel tube	4 units
Boom cylinder	Use original cylinders	Arm cylinder	Use original cylinder

Working Dimensions

Model	LDB120	LDB200	LDB220	LDB200	LDB300	LDB350	LDB400	LDB450
Total length (mm)	13000	15380	15380	18000	18000	20000	22000	24000
Weight (kg)	3000	4000	4200	4900	5200	6000	6500	7000
B — Max dig depth (mm)	9000	11340	11370	13000	13000	15000	16500	18000
A — Max extensive scope (mm)	12500	15100	15100	17500	17600	19600	21600	23600
C — Max dig height (mm)	11300	12510	12610	13720	13720	14920	16100	17300
D — Folding height (mm)	2900	2980	3040	3210	3210	3210	3400	3400
Bucket volume (m³)	0.3	0.4	0.4	0.4	0.4	0.5	0.6	0.6
Excavator tonnage (ton)	10–16	20–22	22–25	20–25	30	35	40	45

Features

1. Material

All Q345B steel for standard long reach booms.
Heavy duty long reach and excavators above 40 tons: top and bottom plates use Q690D steel, other sections use Q340B steel.

Q345B steel is equivalent to S355 steel in Europe. Q690D steel is equivalent to S690QL steel in Europe.

2. Internal Structure

Internal view showing vertical and horizontal reinforcement plates spaced at regular intervals for structural rigidity.

3. Edge Preparation

All steel plates are beveled by beveling machine before welding to ensure full penetration and consistent weld quality.

4. Welding

Welded with mixed gas of argon and carbon dioxide — argon content 80%, carbon dioxide content 20%.
Welded by automatic welding machine for uniform, repeatable weld quality.

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Doosan Excavator Long Reach Boom and Arm for Doosan Dx380/Dx480/Dx520