Heavy Duty Excavator 18m Extended Long Reach Boom Arm for Digger Replacement

Product Specification

Technique	Advanced Techniques	Delivery Time	30-40 work days
Apply to	Building Engineering	Brand	China Famous Brand
Supply Ability	600/ Years	Type	Ordinary Product
Packaging Details	Bubble bag packaging	Model	Customer Required
Quality	High-Quality	Payment Terms	T/T
Appliion	Excavator	Condition	New
OEM	Support	Suitable	20t-55t Excavator
Packing	Standard Packing	Payment	T/T
Place of Origin	Guangdong, China	Brand Name	ZHONGHE

Heavy Duty Excavator 18m Extended Long Reach Boom Arm for Digger Replacement

 

 

 

 

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 and other world famous brands. We deliver complete, appliion-optimized solutions tailored to your specific operating conditions and technical requirements.

 

Product Description

ZHONGHE Long Reach Boom Engineering Excellence

 

Advanced Welding Technology
• Triple-layer welding with four passes (full penetration)

• Dual-layer welding with three passes (critical joints)

                                      High-grade Ningbo connectors(Seamless precision steel tubing)

Reinforced Structural Design
• Vertical bar plate reinforcement for ear seats

 

• Inclined tendon reinforcement inside box sections
• Boom middle sleeve: 45# reinforced steel with integral forming process

 

                                                         

Premium Wear Components
• Graphite alloy copper sleeve

 

                                   Graphite alloy copper sleeve                                                                                     Steel sleeve

 

 

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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 appliion requirements.

Strict sourcing of top-tier global steel (e.g., 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 Verifiion: 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.

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Company Profile

 

 


 

 

 

 

FAQ

 

 

1. Seawater Operation Compatibility

✓ Corrosion-protected booms with epoxy zinc-rich primer + polyurethane topcoat
⚠️ Wear parts alert: Bushes, buckets & cylinders require intensified maintenance

2. Quality Assurance Protocol

① Design Review: Technical drawing certifiion
② In-Process Verifiion: Each workstation inspects prior operations
③ Final Validation:
• Welding integrity (UT tested)
• Dimensional accuracy (±1mm)
• Functional assembly check
→ Triple-stage approval mandatory

3. Core Product Lines

• Boom Systems:

• Long Reach Boom

• Demolition Arm

• 2/3-Stage Telescopic Arm

• Sliding Arm

• Pile Driving Arm

• Tunnel Arm
  • Attachments:

• Buckets (Standard/Heavy-Duty/Rock)

• Grapples

• Rippers
  Annual Capacity: 600+ boom arms

4. Quotation Timeline

• 48-hour guarantee after receiving:

• Excavator model

• Specifiions

• Site conditions