Excavator Tunnel Arm Shorten Arm Tunnel Boom Q355b Excavator Tunnel Arm Shaogang Tunnel Boom Excavator Tunnel Arm Pricing
Price:
$1,800-15,000
MOQ:
1
Delivery Time:
Negotiable
Brand:
Zhonghe Machinery
Product Description
Excavator Tunnel Arm & Shorten Boom
High-strength Q355B steel excavator tunnel arms designed for heavy-duty excavation work in confined spaces with superior maneuverability and durability.
Appliions
Ideal for tunnel digging, underground excavation projects, and working in narrow spaces where safety and efficiency are paramount.
Specifiions by Excavator Model
| Component | Excavator Model (Ton) | Board Thickness (mm) |
|---|---|---|
| Boom | 6-8T | 10mm |
| Arm | ||
| Boom | 10-15T | 14mm |
| Arm | ||
| Boom | 20-24T | 16mm |
| Arm | ||
| Boom | 30-36T | 25mm |
| Arm | ||
| Boom | 45-50T | 30mm |
| Arm |
Customization service available. Please provide your excavator model for precise specifiions.
Product Overview
Safe, balanced, and highly effective tunnel boom systems designed for optimal performance.






Quality Features
Professional engineering, premium materials, and rigorous quality control ensure superior performance.

ZHONGHE Advantages
- Modern design and styling
- Professional engineering team
- Comprehensive quality control
- Competitive pricing
- CE certifiion
- Responsive customer service
- Patented technology
- Extensive production experience





Technical Advantages
- Centralized lubriion system for easy maintenance
- Integrated back bushing design prevents dislodgement
- Multi-layer reinforcing rib plates at stress points for enhanced durability
- Optimized hydraulic pipeline design for simplified maintenance
- Graphite alloy copper sleeves for extended service life
- One-piece molding process for boom seat sleeves
- Three-layer, four-pass welding technique
- Seamless precision steel pipes for superior strength
- Built-in transverse and vertical reinforcement ribs to improve tensile strength
- 90-degree elbow joints prevent hose bending and extend service life
- Enhanced piling height capability compared to standard arms



Quality Assurance Process
Three-stage inspection system ensures every product meets exacting standards:
- Technical Design Review: Comprehensive drawing analysis
- Semi-Finished Product Review: Process-by-process quality verifiion
- Finished Product Testing: Final dimensional and installation validation
Every ZHONGHE product undergoes this rigorous three-stage inspection before shipping.






Manufacturing Capabilities
Our facility employs over 15 technical staff including designers, engineers, and sales professionals, supported by more than 100 skilled workers organized into specialized groups for material processing, machining, and assembly. Each production stage is supervised by group leaders to ensure quality and efficiency.

Frequently Asked Questions
How do you guarantee quality?
Our independent quality department tests every product, with final inspections performed at least 5 times before shipment.
What products do you offer?
Excavator long reach boom arms, telescopic arms, pile driving arms, grapples, and rock buckets.
What are your payment terms?
30% deposit when ordering, with balance due before factory release.
What is your production timeline?
7 days for 1-6 sets, 10 days for 7-12 sets, one month for 12-40 sets.
How is pricing determined?
Quotations are based on excavator model, length requirements, and specific working conditions.
Do you offer OEM services?
OEM available with proper brand authorization.
What is your manufacturing process?
Design → typesetting → cutting → machining → beveling → assembly → welding → pipe layout → pipe welding → grinding → sandblasting → painting → final assembly → quality inspection → packaging.
Can I customize colors?
Colors can be customized to match host equipment or customer preferences.
Contact us for special offers and pricing information.

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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Kaiping Zhonghe Machinery Manufacturing Co., Ltd
Location
Cuishanhu New District, Kaiping City, Jiangmen City, Guangdong Province, China
Contact Person
Katherine