Website Last Updated September 19, 2017  

Willis Machinery & Tools Co.

Radial Arm Drill Presses

Metalworking Equipment

 

 

RD-750 Radial Drill Press
RD-1100 Radial Drill Press
30 inch arm
1--1/2 inch drilling capacity
16 inch x 22 inch x 13 inch H box table
2 HP spindle drive motor
19 inch horizontal drill head travel
25 inch vertical arm travel
88-1500 RPM's
6 spindle speeds
Spindle feeds: 3 steps (0.002"~0.006")/rev
45 inch arm
1--3/4 inch drilling capacity
20 inch x 25 inch x 17 inch H box table
5 HP spindle drive motor
32 inch horizontal drill head travel
27 inch vertical arm travel
44-1500 RPM's
12 spindle speeds
Spindle feeds: 3 steps (0.002 inch ~ 0.006 inch)/rev

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RD-1300H Radial Drill Press
RD-1700H Radial Drill Press
51 inch arm
2 inch drilling capacity
20 inch x 25 inch x 17 inch H box table
7.5 HP spindle drive motor
36 inch horizontal drill head travel
27 inch vertical arm travel
44-1500 RPM's
12 spindle speeds
Hydraulic clamping for drill head and arm rotation
Spindle feeds: 3 steps (0.004 inch ~ 0.024 inch)/rev

66 inch Arm
2 inch Drilling Capacity
22 inch x 32 inch x 16 inch B ox Table
7.5 HP Spindle Drive Motor
47 inch Horizontal Drill Head travel
30-1500 RPM's
12 Spindle Speeds
Hydraulic clamping for drill head
and arm rotation
Spindle feeds: 6 steps (0.004 inch ~ 0.024 inch)/Rev
 
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Willis Machinery has been selling radial arm drills since 1963 and the Bear radial arm drill series for more than 20 years. The Willis Bear radial drilling machines range from the
RD-750 Little Bear radial drilling machine through four sizes to the largest, the RD-1700H model radial arm drill press. The RD-750 and RD-1100 radial arm drilling machines utilize manual clamping. The RD-1300H and 1700H radial drill machines feature a hydraulic clamping system. The Willis Bear series radial arm drill models have arm lengths of 30 inch, 45 inch, 51 inch and 66 inch respectively. The RD-1300H and RD-1700H radial drilling machines make use of a five Morse taper spindle (5MT), the remaining Bear radial drill models make the most of a 4 Morse taper (4MT) spindle. Willis Bear radial arm metalworking machines are consistently in stock and are supported by an extensive inventory of replacement parts. For those with further drilling needs, Willis Machinery is proud to offer drilling machines with many different capabilities from a standard geared head drill press to much larger universal portable drills.

 

Willis Radial Drilling Machine Features:

  • Willis radial arm drills include hardened and ground steel gears that run in an oil bath
  • These radial drilling machines incorporate a spindle and quill made from hardened and ground alloy steel
  • Spindle return tension is easily adjustable on our radial drills through a well-built return spring
  • A Double wall column with an oversize bearing provides easy rotation and maximum stiffness on all Willis radial arm drilling machines
  • Power-feed rates on these radial machines are easily selected and can be changed while spindle in running
  • Limit switches on our radial arm drilling machines are used to prevent over travel with power-feed
  • The radial arms are raised and lowered by a separate motor with safety nut for operation safety
  • Limit switches prevent radial arm over travel
  • Hardened steel wear strips for top of arm ways allow for smooth head travel
  • A Flood coolant system is provided on all Willis radial arm drills
  • Box tables with T-slots on both top and side surfaces are also standard on Willis radial arm drills
  • Fluorescent work light is provided
  • Toolbox, tools, and operator/parts manual is also provided on all Willis radial arm drilling machines

 

 

MODEL / SPECIFICATIONS

RD-750

RD-1100

RD-1300H

RD-1700H

Capacity

Drilling

Steel

1-1/2"

1-3/4"

2"

2"

Cast Iron

2"

2-1/8"

2-3/8"

2-3/8"

Tapping

Steel

3/4"

1"

1-1/4"

1.96"

Cast Iron

1"

1-1/4"

1-1/2"

2.36"

Boring

Steel

3"

3-3/8"

3-1/2"

5"

Cast Iron

4"

4-3/4"

5"

7"

Spindle Stroke/Spindle Taper

7-7/8"/4MT

9-7/8"/4MT

9-7/8"/5MT

11"/5MT

Spindle Speeds (RPM)

88-1500 (6)

44-1500 (12)

44-1500 (12)

30-1500 (12)

Spindle Feeds (inch/rev)

0.002"~0.006" 3 steps

0.002"~0.006" 3 steps

0.004"~0.0024" 6steps

0.004"~0.024" 6steps

Column Diameter

8-1/4"

11-7/8"

11-7/8"

13-1/5"

Max. Distance, spindle Center to Column

30-1/2"

45"

50"

66"

Min. Distance, Spindle Center to Column

11-3/8"

13"

13"

20"

Horizontal Travel of Headstock

19-1/8"

32"

37"

47"

Max. Distance, Base to Spindle

43-3/4"

48-1/2"

48-1/2"

55"

Horizontal Travel of Headstock

19-1/8"

32"

37"

51.5"

M/C Over Height of Column

72-7/8"

85"

85"

98.4"

M/C Height From Floor (Max)

85-5/8"

101-3/4"

101-3/4"

124"

Dimension of Base         (L x M x K) inch

50-3/8"x25-3/16"x5-7/8"

70-27/32"x31-1/2"x6-11/16"

70-27/32"x31-1/2"x6-11/16"

92" x 36" x 9"

Effective Area of Table   (R x S x T)

16" x 22" x 13" H

20" x 25" x 17" H

20" x 25" x 17" H

22" x 32 " x 16" H

Main Drive Motor

2 HP

5 HP

7.5 HP

7.5 HP

Arm Elevation Motor

1 HP

2 HP

2 HP

2 HP

Motor for Hydraulic Clamping Device

 

 

1 HP

 

Coolant Pump

1/8 HP

1/8 HP

1/8 HP

1/8 HP

Weight (approx)

1200 kg

2100 kg

2150 kg

23273 kg

Measurement
(L x W x H)

56"x32"x81"

79"x39"x88"

90"x39"x93"

112"x48"x102"