Precihole’s BVN Series BTA (STS) Deep Hole Drilling Machines are built to operate in continuous production mode for drilling large holes in shafts. Machines feature state of the art technology that produces holes with excellent straightness, bore tolerance and surface finish. These machines are complete solutions that include all features needed for continuous and repeatable performance over many years.

Machine Features
  • Rigid and Robust design to allow precise and vibration free movement of machine elements
  • Use of ball screw or rack and pinion with servo drives for linear motion
  • Proprietary pressure head design to allow optimum oil flow and tool guiding
  • Vibration dampeners to absorb vibrations and reduce tube whipping to improve hole straightness
  • Self centering chuck clamping at both ends on rotating setup for quick setup of parts
  • High pressure coolant and fine filtration system
  • Oil chilling and Automatic Lubrication
  • Fanuc / Siemens CNC controls with customized screens for monitoring machine parameters
  • Provision for adding other processes like Counter boring, Trepanning, Pull Boring, Skiving and Roller
  • Burnishing, Bottle Boring on same machine
Description BVN40 BVN65 BVN100 BVN180 BVN250
Solid Drilling Diameter Range (mm) Ø12.7 – Ø38.1 Ø19 – Ø65 Ø30 – Ø100 Ø50 – Ø180 Ø75 – Ø250
Max. Counter Boring Diameter (mm) N/A Ø100 Ø175 Ø300 Ø400
Max. Drilling Depth (mm) 500 – 2000 1000 – 3000 1500 – 6000 2000 – 12000
Tool Head Spindle Power (kW) 15 22 37 74 113
Spindle Speed Range (rpm) 200 – 2600 80 – 1350 50 – 1350 20 – 110 10 – 700
Work Head Spindle Power (kW) 3.7 11 18 30 37
Spindle Speed Range (rpm) 100 – 200 40 – 100 25 – 75 10 – 50
Coolant System Coolant Flow (lpm) 300 500 900 1500 2000
Tank Capacity (liters) 2500 4000 6000 10000 12000
Description BVN40 BVN65 BVN100 BVN180 BVN250
Solid Drilling Diameter Range (in) Ø0.5 – Ø1.5 Ø0.74 – Ø2.5 Ø0.74 – Ø3.9 Ø1.2 – Ø7 Ø2 – Ø10
Max. Counter Boring Diameter (in) N/A Ø4 Ø7 Ø12 Ø16
Max. Drilling Depth (in) 20 – 80 40 – 120 60 – 240 80 – 780
Tool Head Spindle Power (hp) 20 30 50 100 151
Spindle Speed Range (rpm) 200 – 2600 80 – 1350 50 – 1350 20 – 110 10 – 700
Work Head Spindle Power (hp) 5 15 24 40 50
Spindle Speed Range (rpm) 100 – 200 40 – 100 25 – 75 10 – 50
Coolant System Coolant Flow (gpm) 80 133 238 397 529
Tank Capacity (gal) 660 1060 1600 2600 3200