2, 3 & 4 Spindle Heads in Different Capacities for Blackalloy™ Series 250 &350 Drill Units - Fixed Centers Also Available
Precision Adjustable

Multiple Spindle Head Clamps on Quill and Driven by the Drill Unit Spindle to Convert Single Spindle Drill to Precision Multiple Drilling Unit For Close Center Applications

  • Designed for use with Blackalloy's Self-Feeding Drill Units
  • Drills Multiple and Different-Size Precision Holes Simultaneously
  • Adjustable Centers and Variable Hole Patterns -- Mounts in Any Position
  • Standard Nominal Maximum Stroke Lengths 1-1/2", 3" & 6"
  • 2, 3, 4, 5 or More Spindles
  • Positive Locking Spindles -- Hardened -- Equipped with Collets
  • Self-Lubricating System
  • Multi-Purpose Applications, other than Drilling
  • In-Line and Fixed Center Models Available
  • Supplied Factory Mounted to Blackalloy Drill Units, or Field Retrofittable


Adjustable Twin Spindle Drill Head

Model #

A (Min. C-C)

B (Max. C-C) C (Max. Dia.)
2C-T5 .532 2.89 3/16
2C-T7 .71 3.54 1/4
2C-T10 .867 4.17 3/8
2C-T16 1.42 6.45 5/8
Dimensions Drill Units (Inches)

 

Adjustable In-Line Three Spindle Drill Head

Model #

A (Min. C-C)

B (Max. C-C) C (Max. Dia.)
3L-T5 .552 1.73 3/16
3L-T7 .788 2.20 1/4
3L-T10 .867 2.52 3/8
3L-T16 1.42 3.93 5/8
Dimensions Drill Units (Inches)

 

Adjustable Bolt Circle Three Spindle Drill Head

Model #

A (Min. BCD)

B (Max. BCD) C (Max. Dia.)
3C-T5 .867 3.22 3/16
3C-T7 1.10 3.93 1/4
3C-T10 1.26 4.56 3/8
3C-T16 2.04 7.08 5/8
Dimensions Drill Units (Inches)

 

Adjustablee Bolt Circle Four Spindle Drill Head

Model #

A (Min. BCD)

B (Max. BCD) C (Max. Dia.)
4C-T5 1.33 3.70 3/16
4C-T7 1.65 4.48 1/4
4C-T10 1.89 5.19 3/8
4C-T16 3.07 8.11 5/8
Dimensions Drill Units (Inches)

Series 8650, 8800 & 8950 for All Blackalloy™ Series 150 & 250 Drill Units
Precision Adjustable

Multiple Spindle Head Clamps on Quill and Driven by the Drill Unit Spindle to Convert Single Spindle Drill to Precision Multiple Drilling Unit For Close Center Applications

  • Designed for use with Blackalloy's Self-Feeding Drill Units
  • Drills Multiple and Different-Size Precision Holes Simultaneously
  • Adjustable Centers and Variable Hole Patterns -- Mounts in Any Position
  • Standard Nominal Maximum Stroke Lengths 1-1/2", 3" & 6" or 2", 4" & 8" Optional Strokes
  • 2, 3, 4, 5 or More Spindles
  • Positive Locking Spindles -- Hardened, in Nitrided Steel -- Equipped with Collets
  • Self-Lubricating System
  • Multi-Purpose Applications, other than Drilling
  • In-Line and Fixed Center Models Available
  • Supplied Factory Mounted to Blackalloy Drill Units, or Field Retrofittable

 

Model #

Shank A (Max)

B Center Distance

C

D E

F

G H
Min Max
8402-150 .157 .38 2.13 2.83 2 1.45 5.98 .87 .04
8652-150 .250 .50 2.50 3.25 2.04 2 5.59 .94 .25
8802-150 .312 .625 3.12 4.00 2.50 2.42 5.91 1.16 .63
8802-250 .312 .625 3.12 4.00 2.50 2.42 7.09 1.16 .63
8952-150 .375 .75 3.75 4.88 3.03 2.69 7.50 1.38 1.06
8952-250 .375 .75 3.75 4.88 3.03 2.69 7.50 1.38 1.06
Dimensions - Multiple Spindle Heads (Inches)

Model #

Max Stroke

J K

L

150 & 250-1.5 1.50 4.06 5.63 6.53
150 & 250-2 2.00 4.56 6.13 7.53
150 & 250-3 3.00 5.56 7.13 9.53
150 & 250-4 4.00 6.56 8.13 11.53
150 & 250-6 6.00 8.56 10.13 15.53
150 & 250-8 8.00 10.56 12.13 19.53
Dimensions Drill Units (Inches)

Examples of Common Adjustable Multiple Spindle Heads


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Blackalloy Company of America • 1836 Lonestar Street • Unit 3 • Conway, SC 29526

Tel: (843) 347-3390 • Fax: (843) 347-3391

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