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 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
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
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 certification
② In-Process Verification: 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:
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Long Reach Boom
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Demolition Arm
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2/3-Stage Telescopic Arm
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Sliding Arm
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Pile Driving Arm
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Tunnel Arm
• Attachments:
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Buckets (Standard/Heavy-Duty/Rock)
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Grapples
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Rippers
Annual Capacity: 600+ boom arms
4. Quotation Timeline
• 48-hour guarantee after receiving:
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Excavator model
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Specifications
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Site conditions
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