Sharp Industries Radial Arm Drill, 8.29" Column Diameter - RD-820

Sharp Industries Radial Arm Drill, 8.29" Column Diameter - RD-820

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
• Auto reverse tapping function
• Spindle depth setting with automatic kickout
• 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:

• Diameter of column: 8.29"
• Distance from column surface to spindle center, max.: 33.46"
• Distance from column surface to spindle center, min.: 9.06"
• Travel of spindle head: 25.2"
• Distance from base surface to spindle end, max.: 47.64"
• Distance from base surface to spindle end, min.: 14.76"
• Elevating height of arm: 24.61"
• Effective area of table: 23.62 x 17.52 x 14.96"
• Dimensions of base: 49.21 x 25.20 x 6.30"
• Taper hole in spindle: MT #4
• Stoke of spindle: 8.27"
• R.P.M. of spindle (rpm range x steps): 73-1247 x 6 Steps
• Feed of spindle (1PR x steps): 88-1500 x 6 Steps
• Main motor (HP): 3 HP
• Elevating motor (HP): 1 HP
• Clamping motor for column and gear-box (HP): Manual Clamp
• Clamping motor for arm (HP): Manual Clamp
• Coolant pump (HP): 1/8 HP
• Machine height from floor, max.: 91.34"
• Measurement (LxWxH): 66 x 32 x 87"
• Approximate shipping weight: 2976.25 Lbs.

Cast Iron:

• Drilling: 1.97"
• Capacity Tapping: 1.26"
• Boring: 4.17"

Steel:

• Drilling: 1.26"
• Capacity Tapping: 0.98"
• Boring: 2.75"

Total Power Consumption:

• 220V: 5KVA/15 amps
• 440V: 5KVA/7.5 amps

Standard Accessories:

• Box table
• Coolant system
• Work light
• 220V or 440V