A3-P Pneumatic Underpinner

Product Reference Code: A+A3P

The A3-P is a benchtop pneumatic underpinner and is suitable for the small to medium size framer. The A3-P can join all types of moulding with precision using our A+ special steel wedges. The fence is moved along linear ball bearings and the automatic fence clamp lies below the working surface.



Extra strong nail driver providing trouble free operation for many years
Can be used from both front and back
Horizontal clamp to hold the corners tightly together while assembling the frames.
Double stage foot pedal for horizontal clamping and firing wedge
Designed for easy wedge loading
Two adjustable wedge stops

Optional Accessories:

  • 5mm or 12mm Claw Head
  • Metal Extension Wings
  • Floor Stand

Technical Info

Minimum frame section (W/H) - 6mm x 6mm

Maximum frame section (W/H) - 70mm x 80mm

Wedge magazine capacity - 220

Standard wedge size - 7mm  10mm  15mm

Optional wedge size - 5mm  12mm

Working Pressure - 40 to 80 PSI

Air consumption - 0.12 ft3 @ 73 PSI

Weight - 35Kg

Dimensions (w/d/h) - 320mm/480mm/380mm