Sharp Industries 8.29" COLUMN DIAMETER, 33.5" ARM Radial Arm Drill RD-820
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$20,500.00
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This is a high performance machine ideal for drilling, tapping , boring, reaming, lapping, screwing, counter boring, spot facing, and much more, on materials such as cast iron and steel.
- 8.29” column diameter
- MT#4 spindle, 3 HP motor
- 33.46” column to spindle center
- Drilling : 1.968” cast iron, 1.259” steel
- Boring : 4.125” cast iron, 2.75” steel
- Hardened and ground arm slide ways and gears
- Arm elevation controlled by electric motor
- Manually operated arm, head, clamping
- Counter balanced spindle (spring action) to increase durability
- Safety device prevents arm from dropping even when bronze nut is worn out
- T-slots and drain channels on box table
Specifications and Manual
| Specification | Inch | Metric |
|---|---|---|
| Column & Spindle Travel | ||
| Diameter of Column | 8.29″ | 210 mm |
| Distance Column Surface to Spindle Center, Max. | 33.46″ | 850 mm |
| Distance Column Surface to Spindle Center, Min. | 9.06″ | 230 mm |
| Travel of Spindle Head | 25.2″ | 640 mm |
| Distance Base Surface to Spindle End, Max. | 47.64″ | 1210 mm |
| Distance Base Surface to Spindle End, Min. | 14.76″ | 375 mm |
| Elevating Height of Arm | 24.61″ | 625 mm |
| Table & Base | ||
| Effective Area of Table | 23.62″ × 17.52″ × 14.96″ | 600 × 445 × 380 mm |
| Dimensions of Base | 49.21″ × 25.20″ × 6.30″ | 1250 × 640 × 160 mm |
| Spindle Specifications | ||
| Taper Hole in Spindle | MT #4 | |
| Stroke of Spindle | 8.27″ | 210 mm |
| R.P.M. of Spindle (range × steps) | 73–1247 × 6 steps | |
| Feed of Spindle (1PR × steps) | 88–1500 × 6 steps | |
| Motors & Controls | ||
| Main Motor | 3 HP | 3 HP |
| Elevating Motor | 1 HP | 1 HP |
| Clamping Motor (Column & Gear‑box) | Manual Clamp | |
| Clamping Motor (Arm) | Manual Clamp | |
| Coolant Pump | 1/8 HP | 1/8 HP |
| Physical & Power | ||
| Machine Height from Floor, Max. | 91.34″ | 2320 mm |
| Measurement (L × W × H) | 66 × 32 × 87″ | 1680 × 810 × 2210 mm |
| Approximate Shipping Weight | 2976.25 lbs | 1350 kg |
| Drilling, Tapping & Boring Capacity (Cast Iron) | ||
| Drilling | 1.97″ | 50 mm |
| Tapping Capacity | 1.26″ | 32 mm |
| Boring | 4.17″ | 106 mm |
| Drilling, Tapping & Boring Capacity (Steel) | ||
| Drilling | 1.26″ | 32 mm |
| Tapping Capacity | 0.98″ | 25 mm |
| Boring | 2.75″ | 70 mm |
| Total Power Consumption | ||
| 220 V | 5 kVA/15 amps | 5 kVA/15 amps |
| 440 V | 5 kVA/7.5 amps | 5 kVA/7.5 amps |
Standard Equipment
- Box table
- Coolant system
- Work light
- 220V or 440V
Optional Add-Ons
Call for Price
- Tilting box table