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Excavator Long Reach Boom Construction Machine Parts

Product Details

Certification: CE, ISO9001: 2000, SGS

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Minimum Order Quantity: 1

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Specifications

Description

Specifications

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Boom Length:	12000mm	Arm Length:	10000mm
Max Reach:	21500mm	Max Dig Depth:	16500mm
Max Dig Height:	18500mm	Folding Height:	3400mm
Suit Tonnage:	35ton	Material:	Q345B (S355) + Q690D (S690QL)
Bucket Volume:	0.6m³	Total Length:	22000mm
Weight:	6500kg	Bucket Cylinder:	1 Unit
Boom Cylinder:	Original Cylinders	Arm Cylinder:	Original Cylinder
High Pressure Hoses:	4 Units

Boom Length:	12000mm
Arm Length:	10000mm
Max Reach:	21500mm
Max Dig Depth:	16500mm
Max Dig Height:	18500mm
Folding Height:	3400mm
Suit Tonnage:	35ton
Material:	Q345B (S355) + Q690D (S690QL)
Bucket Volume:	0.6m³
Total Length:	22000mm
Weight:	6500kg
Bucket Cylinder:	1 Unit
Boom Cylinder:	Original Cylinders
Arm Cylinder:	Original Cylinder
High Pressure Hoses:	4 Units

Description

Excavator Long Reach Boom Construction Machine Parts

Excavator long reach boom and arm assemblies engineered for extended digging depth and reach. Each set is supplied as a complete, ready-to-install package with matched cylinders, linkage, and hydraulic components.

Standard Supply & Specifications

Component	Quantity / Specification
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 by Model

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

Construction Features

1. Material Selection

Standard long reach boom: all Q345B steel construction.
Heavy duty long reach and excavators above 40 ton: Q690D high strength steel plates.

Q345B steel is equivalent to S355 steel in Europe. Q690D steel is equivalent to Weldox 700 steel in Europe.

2. Internal Reinforcement 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 Process

Welded with mixed gas of argon and carbon dioxide — argon content 80%, carbon dioxide content 20%.
Welded by robotic welding machine for consistent, repeatable joint quality.

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