The APT M140 is a rugged, yet lightweight Paving Breaker designed for light to medium construction work. It is ideally suited for plant maintenance, such as light demolition of floors, pavements, and frozen grounds. This tool is also very popular for bridge deck jobs.


Model - Part #: Units M140 - 17923
Chuck Size  in. 1" Hex x 4-1/4
Bore Diameter in  1-7/8 
Stroke  in  4-1/7
Blows per Minute bpm 1,500
CFM @ 90 psistar w/neutral)  CFM  48
Weightstar w/neutral)  lbs  43
Lengthstar w/neutral)  in  21 - 1/8
Air Inlet NPTstar w/neutral)  in 1/2" Male NPT 


  • Steel automatic valve
  • Drop forged, steel handle
  • Built in automatic oiler
  • Rubber handle grips
  • Latch type retainer
  • Swivel hose connection
  • Four bolt back head
  • Noise dampening muffler available
  • Fitted with universal hose connector

Air Pressure

The recommended air requirement for the operation of APT tools is 90 psi (6.2 bar). Lower air pressure will decrease power, too high a pressure will increase unwanted stresses in the tool. For proper CFM ratings, please refer to the specification charts shown for each tool in this catalog.

Hose Size

APT recommends the use of at least 1⁄2” inside diameter or larger hoses to assure sufficient air flow to the tool. For portable compressor hose and longer lengths, 3⁄4 “ hose is recommended. Keep the overall length of the hose to a minimum to prevent pressure loss at the tool.

Connecting Hoses

Hoses should be rated for a minimum of 250 psi (17.2 bar). Before connecting the air hose to the tool, check the tool inlet connector to be sure it is clean and free of dirt or debris. Keeping dirt and debris from entering the tool will assure long and satisfactory operation.