Excavator modified arms—such as long-reach booms, demolition arms, and telescopic dippers—can significantly enhance your machine’s capabilities. But choosing the right one requires careful consideration of machine compatibility, job requirements, and material strength.
Here’s your step-by-step guide to making the best decision.
Different jobs demand different arms:
| Arm Type | Best For | Recommended Reach |
|---|---|---|
| Long Reach Boom | Dredging, slope work, deep excavation | 18m–32m |
| Demolition Arm | High-reach demolition, building teardowns | 16m–24m |
| Telescopic Arm | Deep foundation, confined spaces | 12m–30m |
| Rock Arm (Ripper) | Hard rock excavation, quarrying | Heavy-duty Q690D steel |
Pro Tip: If you work in marine or salty environments, opt for corrosion-resistant coatings.
Not all arms fit all machines. Check compatibility with:
✔ Excavator weight class (e.g., 20T, 30T, 45T)
✔ Hydraulic flow & pressure requirements
✔ Mounting pin sizes & geometry
Popular Models & Recommended Arms:
Key Features to Look For:
✔ Centralized lubrication (easy maintenance)
✔ Reinforced stress points (prevents cracking)
✔ OEM-compatible hydraulics (plug-and-play installation)
If you’re using heavy attachments (shears, grapples), ensure:
✔ Upgraded cylinders (larger bore for more power)
✔ Extra counterweight (for stability)
✔ Quick coupler compatibility (for fast tool changes)
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Before purchasing:
✅ Ask for CAD drawings (verify fitment)
✅ Check lead times (standard: 15–30 days)
✅ Compare warranty (12+ months for premium arms)
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