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CE-Approved Excavator Long Arm Kits for Cat320 Cat330 Cat336

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Minimum Order Quantity: 1

Price: 8500

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Specifications

Description

Specifications

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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            CE-approved excavator long arm kits, Cat320 Cat330 Cat336 long arm kits, excavator long arm attachment kits
                                                      

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
Arm Material:	Q340B Steel	Welding Gas:	80% Argon, 20% CO2
Welding Method:	Robotic Welding	Pins Quantity:	8 Units
High Pressure Hoses:	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
Arm Material:	Q340B Steel
Welding Gas:	80% Argon, 20% CO2
Welding Method:	Robotic Welding
Pins Quantity:	8 Units
High Pressure Hoses:	4 Units

Description

CE-Approved Excavator Long Arm Kits for Cat320 Cat330 Cat336

CE-approved excavator long reach boom and arm kits engineered for Cat320, Cat330, and Cat336 excavators. Each kit extends working reach for deep excavation, dredging, and long-distance material handling while retaining the reliability of your original hydraulic cylinders.

Standard Supply & Kit Specifications

Each long reach boom and arm kit is supplied as a complete, ready-to-install package with the following components:

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

Select the long reach configuration that matches your excavator tonnage and required dig depth, reach, and dump height.

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. High-Strength Steel Material

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 on the top and bottom plates, 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. Reinforced Internal Structure

Internal cavities are spaced by vertical and horizontal reinforcement plates at regular intervals, delivering superior torsional rigidity and load distribution across the full boom and arm length.

3. Precision Beveling

All steel plates are beveled by machine before welding, ensuring full-penetration weld joints and consistent structural integrity.

4. Advanced Welding Process

Welded with a mixed shielding gas of 80% argon and 20% carbon dioxide for clean, strong weld seams.
Performed by robotic welding machines to guarantee uniform penetration and repeatable quality.

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CE-Approved Excavator Long Arm Kits for Cat320 Cat330 Cat336