DeHoff BTA/STS
Versatile drilling machine for large diameter holes
2 to 6 inch drilling capacity
The DeHoff BTA/STS line of drilling machines offer larger drilling capacities for large diameter hole applications, such as those typically seen in the aerospace and petrochemical industries. Four different models are offered with 2 to 6 inches (50.8 to 152.4 mm) of drill capacity available.
Because of the large workpieces typically involved, many different fixturing options can be designed and built to suit your application.
Each DeHoff BTA/STS machine also includes our robust coolant system and a Microsoft Windows®-based controls package.
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The DeHoff Advantage:
Unmatched performance
Hardened and ground steel box ways with hand-scraped saddle, gibs, and straps provide long-term drilling accuracy and reliability.
Robust coolant system
High-pressure coolant system is suitable for either oil or water-soluble coolants up to 2,500 psi (172 bar) or 160 gpm (606 L/min).
PC-Based machine controls
Embedded PC-based control system features Microsoft Windows OS and a 12-inch (305 mm) color display.
Versatile workpiece handling
Custom fixturing and automated part loading options available.
BTA/STS 20 Specifications
| Drill Capacity | 2 in (50.8mm) |
| Slide Travel | 36 in (914 mm) or 60 in (1524 mm) or 84 in (2134 mm) or 120 in (3048 mm) |
| No. of Spindles | 1 |
| Spindle Power | 20 hp (14.9 kW) |
| Spindle RPM | 92 – 4,875 |
| Feed Rate | 0.1 – 30 in/min (2.5 – 762 mm/min) |
| Coolant Flow | 60 gpm (227 L/min) |
| Coolant Pressure | 500 psi (34.5 bar) |
BTA/STS 30 Specifications
| Drill Capacity | 3 in (76.2mm) |
| Slide Travel | 120 in (3048 mm) |
| No. of Spindles | 1 |
| Spindle Power | 40 hp (29.8 kW) |
| Spindle RPM | 60 – 2,190 |
| Feed Rate | 0.1 – 30 in/min (2.5 – 762 mm/min) |
| Coolant Flow | 120 gpm (454 L/min) |
| Coolant Pressure | 500 psi (34.5 bar) |
BTA/STS 40 Specifications
| Drill Capacity | 4 in (102mm) |
| Slide Travel | 60 in (1524 mm) |
| No. of Spindles | 1 |
| Spindle Power | 50 hp (37.3 kW) |
| Spindle RPM | 60 – 2,190 |
| Feed Rate | 0.1 – 30 in/min (2.5 – 762 mm/min) |
| Coolant Flow | 150 gpm (568 L/min) |
| Coolant Pressure | 500 psi (34.5 bar) |
BTA/STS 60 Specifications
| Drill Capacity | 6 in (152mm) |
| Slide Travel | 60 in (1524 mm) |
| No. of Spindles | 1 |
| Spindle Power | 100 hp (74.6 kW) |
| Spindle RPM | 60 – 2,190 |
| Feed Rate | 0.1 – 30 in/min (2.5 – 762 mm/min) |
| Coolant Flow | 150 gpm (568 L/min) |
| Coolant Pressure | 500 psi (34.5 bar) |