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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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BTA Deep Hole Drilling Machine – DeHoff BTA/STS 6060 w/ automation
DeHoff

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 Capacity2 in (50.8mm)
Slide Travel36 in (914 mm) or
60 in (1524 mm) or
84 in (2134 mm) or
120 in (3048 mm)
No. of Spindles1
Spindle Power20 hp (14.9 kW)
Spindle RPM92 – 4,875
Feed Rate0.1 – 30 in/min (2.5 – 762 mm/min)
Coolant Flow60 gpm (227 L/min)
Coolant Pressure500 psi (34.5 bar)

BTA/STS 30 Specifications

Drill Capacity3 in (76.2mm)
Slide Travel120 in (3048 mm)
No. of Spindles1
Spindle Power40 hp (29.8 kW)
Spindle RPM60 – 2,190
Feed Rate0.1 – 30 in/min (2.5 – 762 mm/min)
Coolant Flow120 gpm (454 L/min)
Coolant Pressure500 psi (34.5 bar)

BTA/STS 40 Specifications

Drill Capacity4 in (102mm)
Slide Travel60 in (1524 mm)
No. of Spindles1
Spindle Power50 hp (37.3 kW)
Spindle RPM60 – 2,190
Feed Rate0.1 – 30 in/min (2.5 – 762 mm/min)
Coolant Flow150 gpm (568 L/min)
Coolant Pressure500 psi (34.5 bar)

BTA/STS 60 Specifications

Drill Capacity6 in (152mm)
Slide Travel60 in (1524 mm)
No. of Spindles1
Spindle Power100 hp (74.6 kW)
Spindle RPM60 – 2,190
Feed Rate0.1 – 30 in/min (2.5 – 762 mm/min)
Coolant Flow150 gpm (568 L/min)
Coolant Pressure500 psi (34.5 bar)