UNISIG: B-Series Ballscrew

The UNISIG B-series machines with ballscrew feed use the BTA process to deep drill holes in the center of round parts. Very high accuracy and complex multiple-step bores are possible, as well as high power, large diameter production drilling.

B-Series BTA drilling machines with ballscrew feed are capable of accurate, on-center drilling of parts up to 6m deep.

BTA SOLID DRILL65mm (2.6in)100mm (3.9in)150mm (5.9in)200mm (8in)
BTA COUNTERBORE/TREPAN100mm (3.9in)150mm (5.9in)200mm (8in)300mm (12in)
DRILL DEPTH1.5M - 3.5M (5ft - 10ft)1.5M - 6.0M (5ft - 20ft)1.5M - 6.0M (5ft - 20ft)1.5M - 6.0M (5ft - 20ft)
Machine Series Features
  • Drill depth of 6M (20ft)
  • Ballscrew feed system
  • Precision ground roller guides
  • Heavy construction for job shop or production use
  • Easy to use conversational controlls
  • High power with short deliver
Machine Configurations
  • Rotating workpiece, stationary tool
  • Rotating tool, counter-rotation workpiece
  • Rotating tool, stationary workpiece
  • BTA solid drilling
  • BTA counter boring
  • Trepanning
  • Skiving and roller burnishing
Industries Served
  • Aerospace
  • Energy
  • Military Arms Defense
  • Oilfield Exploration Tooling
Advanced Options
  • Fanuc or Seimens CNC
  • Lantern chuck for pull bore tooling
  • X-axis actuator for bottle boring
Machine Accessories
  • Precision pressure heads
  • Vibration dampener carriages
  • Workholding chucks
  • Workpiece roller steady
  • Hinged belt chip conveyor
  • Coolant chiller or heat exchanger
Tooling Accessories
  • Drill tubes
  • Drill tube clamps
  • Drill bushing systems
  • Tube seal packing glands
  • Vibration dampener cartridges
Machines come configured to your specifications and can be installed in less than half the standard lead time.
Workpiece Type Cylindrical, Tubular
Hole Location Primarily On-center
Workpiece Weight < 100 Tons