Custom Telescopic Boom / Telescopic Arm for Excavator Attachment
Long arm length (mm) 16000 18000 18000 20000 22000 20000 22000 24000
Max digging radius (mm)15300 17300 17300 19200 21200 19200 21200 23020
Max digging depth (mm) 11200 12200 12200 14200 15600 14200 15600 16500
Max digging height (mm)13500 15300 15300 16600 17170 15600 16170 17170
Bucket capacity (cbm) 0.5 0.4 0.8 0.7 0.5 1 0.8 0.6
Counterweight (ton) 0 2 0 3 4 2 3 4
- Product Description
Telescopic Long Reach Arm for Excavator
Product Overview
Our excavator telescopic long reach arm is specially engineered for 20–25 ton, 30–36 ton and 40–47 ton excavators. It is widely used for deep foundation excavation, river dredging, slope trimming, deep pit construction and other working scenarios requiring ultra-long working range. With optimized structural design and reliable workmanship, this boom delivers outstanding digging performance, stable operation and strong adaptability to complex job sites.
Main Technical Specifications
| Item | 20-25 ton | 30-36 ton | 40-47 ton | |||||
|---|---|---|---|---|---|---|---|---|
| Long arm length (mm) | 16000 | 18000 | 18000 | 20000 | 22000 | 20000 | 22000 | 24000 |
| Max digging radius (mm) | 15300 | 17300 | 17300 | 19200 | 21200 | 19200 | 21200 | 23020 |
| Max digging depth (mm) | 11200 | 12200 | 12200 | 14200 | 15600 | 14200 | 15600 | 16500 |
| Max digging height (mm) | 13500 | 15300 | 15300 | 16600 | 17170 | 15600 | 16170 | 17170 |
| Bucket capacity (cbm) | 0.5 | 0.4 | 0.8 | 0.7 | 0.5 | 1 | 0.8 | 0.6 |
| Counterweight (ton) | 0 | 2 | 0 | 3 | 4 | 2 | 3 | 4 |
Product Features
✅ Multiple size options Compatible with 20–25t, 30–36t and 40–47 ton excavators. Arm lengths range from 16m to 24m to match different working depth and radius requirements. Customized counterweight configuration ensures whole machine stability during long-reach operation.
✅ High-strength structure Adopts high-tensile steel plate, precision welding and stress-relief treatment. The boom structure resists bending and torsion under heavy load, greatly extending service life under continuous heavy-duty work.
✅ Excellent working performance Large digging depth and wide working coverage. It can reach deep trenches and far working areas efficiently, replacing conventional standard arms for special long-reach projects and saving construction cost.
✅ Easy installation & good compatibility Directly fitted on matched excavator main machine without large modification. Perfectly matched with the original hydraulic system, smooth stretching and flexible control. Different bucket volume selections support digging, loading and cleaning work.
✅ Wide application Ideal for river and lake dredging, deep foundation pit excavation, seawall renovation, slope shaping, high embankment maintenance, demolition and other special engineering projects.
Our Advantage
We support non-standard customization according to your site requirements. Strict quality inspection before delivery. Complete after-sales guidance for installation and operation.
