Adjustable Multiple Spindle Heads
Multiple Spindle Heads
Multiple Spindle Heads with Variable Center to Center Spacing Available for Blackalloy™ Series 250 &350 Drill Units
Precision adjustable, these Multiple Spindle Heads are also available with Custom Drill Press Mounts
The adjustable multiple spindle head clamps on the quill and is driven by the drill unit spindle to convert a single spindle drill to a precision multi-spindle drilling unit for close center to center applications. These multi-spindle heads can be designed with 2, 3, 4 and more spindles of various capacities for use on Blackalloy™ Series 250 &350 Drill Units or they can be adapted to many makes and models of drill press. Drill press dimensions for your specific drill press are required when requesting a quote. Custom fixed spacing, multiple spindle heads are also available.
Full product details
These adjustable spacing, multiple spindle heads, clamp on the quill and are driven by the drill unit spindle to convert a single spindle drill unit into a precision multi-spindle drilling unit for close center to 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 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. (Center to Center) | 'B' Max. (Center to Center) | C (Max. Dia.) | Collet Size | Weight |
| 2C-T5 | 13.5mm (0.532") | 73.5mm (2.894") | Ø5mm (0.196") | ER-8 | 8 lbs. |
| 2C-T7 | 18mm (0.709") | 90mm (3.543") | Ø7mm (0.276") | ER-11 | 10 lbs. |
| 2C-T10 | 22mm (0.866") | 106mm (4.173") | Ø10mm (0.394") | ER-16 | 12 lbs. |
| 2C-T12 | 26mm (1.024") | 126mm (4.961") | Ø12mm (0.472") | ER-20 | 16 lbs. |
| 2C-T16 | 36mm (1.417") | 164mm (6.457") | Ø14mm (0.551") | ER-25 | 24 lbs. |
| Dimensions in Millimeters (Inches) | |||||
Adjustable 3-Spindle (In-Line) Drill Head
| Model # | 'A' Min. (Center to Center) | 'B' Max. (Center to Center) | C (Max. Dia.) | Collet Size | Weight |
| 3C-T5 | 14mm (0.551") | 88mm (3.465") | Ø5mm (0.196") | ER-8 | 8 lbs. |
| 3C-T7 | 20mm (0.787") | 112mm (4.409") | Ø7mm (0.276") | ER-11 | 9 lbs. |
| 3C-T10 | 22mm (0.866") | 128mm (5.039") | Ø10mm (0.394") | ER-16 | 13 lbs. |
| 3C-T12 | 26mm (1.024") | 152mm (5.984") | Ø12mm (0.472") | ER-20 | 19 lbs. |
| 3C-T16 | 36mm (1.417") | 200mm (7.874") | Ø14mm (0.551") | ER-25 | 32.5 lbs. |
| Dimensions in Millimeters (Inches) | |||||
Adjustable 3-Spindle (Bolt Circle) Drill Head
| Model # | Ø 'A' Min. | Ø 'B' Max. | Ø 'C' (Max. Dia.) | Collet Size | Weight |
| 33C-T5 | Ø22mm (0.866") | Ø82mm (3.228") | Ø5mm (0.196") | ER-8 | 10 lbs. |
| 33C-T7 | Ø28mm (1.102") | Ø100mm (3.937") | Ø7mm (0.276") | ER-11 | 13 lbs. |
| 33C-T10 | Ø32mm (1.260") | Ø116mm (4.567") | Ø10mm (0.394") | ER-16 | 16 lbs. |
| 33C-T12 | Ø38mm (1.496") | Ø138mm (5.433") | Ø12mm (0.472") | ER-20 | 23 lbs. |
| 33C-T16 | Ø52mm (2.047") | Ø180mm (7.087") | Ø14mm (0.551") | ER-25 | 34 lbs. |
| Dimensions in Millimeters (Inches) | |||||
Adjustable 4-Spindle (Bolt Circle) Drill Head
| Model # | Ø 'A' Min. | Ø 'B' Max. | Ø 'C' (Max. Dia.) | Collet Size | Weight |
| 4C-T5 | Ø34mm (1.339") | Ø94mm (3.701") | Ø5mm (0.196") | ER-8 | 13 lbs. |
| 4C-T7 | Ø42mm (1.654") | Ø114mm (4.488") | Ø7mm (0.276") | ER-11 | 16 lbs. |
| 4C-T10 | Ø48mm (1.890") | Ø132mm (5.197") | Ø10mm (0.394") | ER-16 | 20 lbs. |
| 4C-T12 | Ø58mm (2.283") | Ø158mm (6.220") | Ø12mm (0.472") | ER-20 | 29 lbs. |
| 4C-T16 | Ø78mm (3.071") | Ø206mm (8.110") | Ø14mm (0.551") | ER-25 | 48 lbs. |
| Dimensions in Millimeters (Inches) | |||||
Drill Press Mounting
Adapting a multiple spindle drill head to your drill press will require some detailed information from you regarding your drill press. The form link below contains a PDF drawing with a table that must be completed with dimensions specific to your drill press to make sure that your drill head will fit your drill press once you receive it. This is necessary because drill press components and their associated dimensions can vary over time with changes in manufacture, drill press owner, and 3rd party replacement components. You will need to provide these dimensions before we can proceed with quoting your drill press mounted multiple spindle head.
Model 250 Self-Feeding Drill Units
Model 350 Self-Feeding Drill Units
Model 352/353 Self-Feeding Drill Units
