High Quality Excavator Telescopic Arm Construction Machinery Part Support OEM Building Engineering

ZHONGHE Heavy Industry: Precision Custom Solutions for Global Leaders
Backed by over a decade of industry leadership, we engineer bespoke attachments for excavators from Sany, XCMG, Caterpillar, and other world famous brands. We deliver complete, application-optimized solutions tailored to your specific operating conditions and technical requirements.

Product Description

Excavator Telescopic Arm: Capabilities & Applications

• Extends operational reach within confined spaces where standard boom movement is restricted.

• Adjusts working radius and digging depth dynamically in complex or narrow environments.

• Key Benefit: Enables deep digging and high-reach tasks without repositioning the machine, minimizing site disruption.

ZHONGHE Telescopic Arm Quality Assurance

• Optimized Materials:

  • Main Boom Structure: High-strength LG700 steel for reduced weight and machine load.

  • Bucket Linkage Points: Q355B steel.

• Service-Friendly Design: External arm tube access allows hoses replacement without full boom disassembly.

Production & Quality Focus

Lightweight Durability: High-strength steel plates minimize weight and excavator load.

Stable Cylinder Operation: Dual-slider design reduces vibration, supports the cylinder, and lowers failure rates.

Precision Machining: Post-welding, dual-sided boring ensures high concentricity, enhancing operational smoothness and lifespan.

​

• Essential for: Deep excavation (foundations, trenches), urban construction (roads, utilities), tunnels, marine works, bridge/culvert projects.​​

Precision Manufacturing Process: Strength Built on Quality

ZHONGHE's manufacturing prowess is the foundation of our product excellence. We implement a strictly controlled, lean production process:

1. Precision Design & Material Selection:

Professional structural design and stress analysis based on application requirements.

Strict sourcing of top-tier global steel (e.g., Hardox wear plate, BS700/Q690D/Q355B structural steel).

2. High-Precision Cutting & Forming:

CNC plasma/flame cutting ensures dimensional accuracy with minimal thermal distortion.

Large structural components are precision-formed using heavy-duty press brakes and plate rollers.

3. Advanced Welding Technology:

Operated by internationally certified senior welders.

Extensive use of high-strength processes like GMAW (Gas Metal Arc Welding).

Critical joints feature double-beveled groove preparation (45°) with gas-shielded welding.

Key structural areas utilize double-pass welding.

4. Precision Machining & Assembly:

Large double-sided floor boring mills ensure high concentricity (±1mm tolerance) for pivot booms, extending lifespan.

5. Triple-Check QC Protocol: Zero Tolerance for Defects:

Design Review: Rigorous approval of drawings and technical plans.

In-Process Verification: 100% inspection after each manufacturing stage, checking prior process outputs. Problems are halted before proceeding.

Final Inspection: Our independent QC Department performs comprehensive checks, including:

Weld quality.

Critical dimensional accuracy (CMM - Coordinate Measuring Machine, ±1mm tolerance control).

Hydraulic system pressure and seal integrity tests.

Functional tests (range of motion, limit switch protection).

Only products passing all three mandatory quality gates receive shipment authorization.

​

Company Profile

FAQ

Q1. Ordering Process
A1: Follow our streamlined 3-step workflow:

1. Consultation: Provide excavator model, working conditions, special requirements, and deadline.

2. Proposal: Receive customized technical solution within 24 hours.

3. Quotation: Get formal pricing within 24 hours of proposal confirmation.

Q2. Telescopic Boom Length Definition
A2: Specified lengths (e.g., "14m") refer to maximum digging depth - not physical boom length. Actual boom length varies by model to achieve this depth capacity.

Q3. Boom Length Determination
A3: Length is engineered based on:

• Host excavator dimensions

• Required digging depth