Precihole Pull Reaming Machines provide all necessary features to create a polished and precise bore in gun barrels. This operation follows gun drilling and removes all irregularities in the hole by improving surface finish and preparing the hole for rifling. These machines features an elaborate fine filtration system that delivers clean cutting oil at optimized pressure to lubricate the carbide tool and flush out fine metal chips.

Machine Features
  • Use of ball screw and servo drives for linear motion
  • Special quick clamp system for reamer tube
  • Hydraulic cone arrangement for barrel blank clamping
  • High pressure coolant and 10 micron fine filtration system
  • Oil chilling and Automatic Lubrication
  • Mitsubishi / Siemens PLC controls with touch screen HMI
  • Integrated design to reduce overall machine footprint
Description PRVN12 PRVN15
Reaming Diameter Range (mm) Ø4 – Ø12.7 Ø5 – Ø15
Spindles (nos.) 1 / 2 / 4
Max. Reaming Depth (mm) 600 / 1000 / 1200 / 1500
Barrel OD Range (mm) 12 – 55 15 – 60
Max. Component Weight (kg) 30 40
Reamer Feed Range (mm/min) 0 – 500
Power / Spindle (kW) 1.5
Spindle Speed (rpm) 10 – 1000
Coolant Tank Capacity (liters) 1150 2000
Max. Coolant Flow (LPM) 45 60
Description PRVN12 PRVN15
Reaming Diameter Range (in) Ø0.15 – Ø0.5 Ø0.2 – Ø0.59
Spindles (nos.) 1 / 2 / 4
Max. Reaming Depth (in) 24 / 40 / 48 / 60
Barrel OD Range (in) 0.47 – 2.16 0.59 – 2.36
Max. Component Weight (lbs) 66 89
Reamer Feed Range (in/min) 0 – 20
Power / Spindle (hp) 2
Spindle Speed (rpm) 10 – 1000
Coolant Tank Capacity (gal) 300 530
Max. Coolant Flow (gpm) 12 16