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Hitachi Zx200/Ex200 20ton Long Reach Kits Excavator Attachments

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Specifications

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Total Length:	13000-24000 Mm	Weight:	3000-7000 Kg
Max Dig Depth:	9000-18000 Mm	Max Reach:	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
Welding Gas:	80% Argon, 20% CO2	Welding Method:	Robotic Welding
Pins Quantity:	8 Units	High Pressure Hoses:	4 Units
Steel Tubes:	4 Units

Total Length:	13000-24000 Mm
Weight:	3000-7000 Kg
Max Dig Depth:	9000-18000 Mm
Max Reach:	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
Welding Gas:	80% Argon, 20% CO2
Welding Method:	Robotic Welding
Pins Quantity:	8 Units
High Pressure Hoses:	4 Units
Steel Tubes:	4 Units

Description

Hitachi Zx200/Ex200 20ton Long Reach Kits Excavator Attachments

Excavator Long Reach Boom and Arm Kit Overview

The Hitachi ZX200 / EX200 20-ton long reach kit is a complete excavator attachment package designed to extend digging depth and reach for demanding earthmoving, dredging, and trenching applications. Each kit is supplied with matched long boom and long arm components, hydraulic lines, and linkage hardware for straightforward installation.

Standard Supply and Kit 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 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 and Material Specifications

1. Material Selection

Standard long reach booms are fabricated entirely from Q345B steel.
Heavy duty long reach booms and kits for excavators above 40 tons use Q690D steel for the top and bottom sections, with Q340B steel for the remaining structure.

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

2. Internal Reinforcement Structure

The internal structure is spaced with vertical and horizontal reinforcement plates at regular intervals to maintain structural rigidity across the full length of the boom and arm.

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 a mixed shielding gas of argon and carbon dioxide — 80% argon, 20% carbon dioxide.
Welding performed by robotic welding machine for consistent penetration and finish.

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