Factory Wholesale Construction Machinery Parts 6-30 Ton Excavator with Long Boom Sliding Arm Compatible with SK210 SH300 HD700

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

ZHONGHE Sliding Arm: Precision Engineering for Demanding Applications

Core Technical Advantages

Dual-Limit Vibration Control System
• Industry-first design eliminates operational vibration
• Significantly reduces operational vibration of telescopic cylinders
• Prevents cylinder over-extension damage(The cylinder is also protected by double seals.)
→ Substantially enhances cylinder durability ​

Wear-Resistant Slider Innovation
• Replaced pulley mechanism with wear plastic sliders
• Modular design enables quick replacement and maintenance
→ Reduces downtime costs by 40% vs traditional systems

Reinforced Structural Design
Single-Plate Cover Technology
• Critical load-bearing covers CNC-cut from single steel plates 
• Precision machining ensures deformation control under load
→ Eliminates structural deformation risks

Active Corrosion Prevention
• Strategically positioned drainage holes in arm tubes
→ Effectively mitigates internal water accumulation and corrosion

Ideal Applications
• Subway tunneling • Foundation excavation • Caisson construction 

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.

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Company Profile

FAQ

1. Quality Assurance Protocol
◾ Mandatory pre-production prototyping
◾ Rigorous final inspection certification

2. Core Product Range
✔ Long Reach Booms
✔ Telescopic Arms (2/3-Stage)
✔ Demolition Arms
✔ Material Grapples
✔ Specialized Buckets (Rock/Heavy-Duty/Tilt)

3. Competitive Advantages
• 10,000m² advanced manufacturing facility
• Annual capacity:600+ custom booms/arms

4. Global Trade Services
Delivery Terms: EXW, FOB, CIF
Accepted Currencies: USD,  CNY
Payment Methods: T/T