High Effective Excavator Tunnel Arm for Sale Excavator Short Arm Short Boom Excavator for Hitachi komatsu Sanny
Our excavator short boom and tunnel arm are manufactured using the same high-quality materials as standard boom and arm components. The shortened design provides enhanced durability and superior performance in confined working spaces such as basements and tunnels.
Zhonghe Machinery brings 8 years of specialized experience in excavator short boom manufacturing, with technology and quality standards recognized by customers worldwide.
| egory | 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 |
Compatible with all excavator brands. Contact us with your specific model for personalized recommendations.
- Centralized lubriion system
- Integrated back bushing design prevents detachment
- Multi-layer reinforcing rib plates at stress points
- Optimized hydraulic pipeline section for easy maintenance
- Graphite alloy copper sleeves
- One-piece molding process for boom seat sleeves
- Three-layer, four-pass welding technique
- Seamless precision steel pipe construction
- Built-in transverse and vertical reinforcement ribs
- 90-degree elbow joints extend hose service life
- Superior piling height compared to standard arms
Ideal for tunneling, underground excavation, basement digging, and other confined space operations where maneuverability and durability are critical.
Our team includes over 15 technical staff (designers, engineers, sales) and more than 100 skilled workers organized into specialized groups for material processing, machining, and assembly. Each production stage is supervised to ensure quality and precision.
Our factory maintains an independent quality department. Each product undergoes rigorous testing and must pass final inspection at least 5 times before shipment.
Excavator long reach boom arms, telescopic arms, pile driving arms, grapples, and rock buckets.
30% deposit upon order placement, with balance due before factory departure.
7 days for 1-6 sets, 10 days for 7-12 sets, one month for 12-40 sets.
Quotations are based on excavator model, arm length, and specific working condition requirements.
OEM available with proper brand authorization.
Design → typesetting → cutting → machining → beveling → assembly → welding → pipe layout → pipe welding → grinding/sandblasting → painting → final assembly → quality inspection → packaging.
Colors can be customized to match your host equipment or specific requirements.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.