RD-820
| Column Diameter | 8.29 in. |
|---|---|
| Head Travel | 25.20 in. |
| Column to Spindle | 33.46 in. |
Overview
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
Product Video
Features
Auto reverse tapping function
Spindle depth setting with automatic kickout
Specs
| Inch | Metric | |
|---|---|---|
| Diameter of column | 8.29 inches | 210 mm |
| Distance from column surface to spindle center, max. | 33.46 in. | 850 mm |
| Distance from column surface to spindle center, min. | 9.06 in. | 230 mm |
| Travel of spindle head | 25.2 in. | 640 mm |
| Distance from base surface to spindle end, max. | 47.64 in. | 1210 mm |
| Distance from base surface to spindle end, min. | 14.76 in. | 375 mm |
| Elevating height of arm | 24.61 in. | 625 mm |
| Effective area of table | 23.62 x 17.52 x 14.96 in. | 600 x 445 x 380 mm |
| Dimensions of base | 49.21 x 25.20 x 6.30 in. | 1250 x 640 x 160 mm |
| Taper hole in spindle | MT #4 | |
| Stoke of spindle | 8.27 in. | 210 mm |
| R.P.M. of spindle (rpm range x steps) | 73-1247 x 6 Steps | 73-1247 x 6 Steps |
| Feed of spindle (1PR x steps) | 88-1500 x 6 Steps | 88-1500 x 6 steps |
| Main motor (HP) | 3 HP | 3 HP |
| Elevating motor (HP) | 1 HP | 1 HP |
| Clamping motor for column and gear-box (HP) | Manual Clamp | Manual Clamp |
| Clamping motor for arm (HP) | Manual Clamp | Manual Clamp |
| Coolant pump (HP) | 1/8 HP | 1/8 HP |
| Machine height from floor, max. | 91.34 in. | 23.20 mm |
| Measurement (LxWxH) | 66 x 32 x 87 in. | 1680 x 810 x 2210 mm |
| Approximate shipping weight | 2976.25 Lbs. | 1350 Kg |
| Cast Iron | Inch | Metric |
|---|---|---|
| Drilling | 1.97 in. | 50 mm |
| Capacity Tapping | 1.26 in. | 32 mm |
| Boring | 4.17 in. | 106 mm |
| Steel | Inch | Metric |
|---|---|---|
| Drilling | 1.26 in. | 32 mm |
| Capacity Tapping | 0.98 in. | 25 mm |
| Boring | 2.75 in. | 70 mm |
| Total Power Consumption | Inch | Metric |
|---|---|---|
| 220V | 5KVA/15 amps | 5KVA/15 amps |
| 440V | 5KVA/7.5 amps | 5KVA/7.5 amps |
All specifications subject to change without notice. Please call to verify.
Accessories
Standard Accessories
- Box table
- Coolant system
- Work light
- 220V or 440V
Optional Accessories
- Tilting box table
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