Precihole’s GVN-C Series Gun Drilling Machines are built to manufacture high precision parts. These machines incorporate the latest technology available and can be customized to suit volume requirements and provide excellent straightness, surface finish and bore tolerance. Length to diameter ratios of up to 125 are possible. The Precihole GVN-C series machines are complete solutions that include features needed for continuous and repeatable performance over many years.
Award winning design – continuously improved and proven over the past 3 decades
Best value and return on investment in the industry
Modular construction that allows high level of flexibility for standard components
Option for 2 or 4 spindle configurations to accommodate high productivity environments
Touch screen and programmable logic controls
Quick and operator-friendly setup and changeovers
Multiple types of automation can be incorporated
Machine features:
Component counter rotation to ensure excellent straightness
Use of ball screw and servo drives for smooth linear motion
Multiple tool steady rests to provide appropriate tube support
Hydraulic Cone / 3 Jaw Self-Centering chuck clamping arrangement
High pressure coolant and fine filtration system
Oil chiller and automatic lubrication
Mitsubishi / Siemens PLC controls with touch screen HMI
Tool monitoring system to ensure tool breakage prevention
Integrated unibody design to reduce overall machine footprint
STANDARD ACCESSORIES
Fully Enclosed Machine Guarding
Axis Motion on LM Guide Ways
Ballscrew & Servo Drives for Linear Motion
High Pressure Coolant System
Coolant Filtration System with 25 micron level of filtration
Centralized Lubrication
High Speed PLC Controller
Main Comsole with Touch Screen HMI
OPTIONAL ACCESSORIES
Chip Conveyor / Magnetic Drum Separator
Compact Band Filtration
Coolant Oil Chiller
CE / UL Certification
Automatic Component Loading / Unloading System
Tool Steadies
Variable Coolant Flow System
Up to 8 Spindles for maximum productivity
Tool Wear / Breakage Monitoring System
Setup for Stationary Components
CNC Controls (Fanic / Siemens)
Drilling Diameter Range 0.315″ – 1″
Number of Spindles 1 / 2
Max. Drilling Depth 16″/24″/30″/40″
Part OD Range 0.4″ – 3″
Part Clamping System Hydraulic Cone Clamping / Chuck Clamping
Max. Component Weight 111 lbs.
Counter Rotation Speed (RPM) 140 RPM
Drill Feed Range 0-40 IPM
Rapid Traverse 315 IPM
Power per Spindle 10 HP
Spindle Speed 600-3,300 RPM
Coolant Tank Capacity (Gallons) 277/290/330
Max. Coolant Pressure (PSI) 870
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