The Model 190A Airgo-Line® Paving Breaker is a 90 lb class tool. The ergonomically designed handle helps reduce harmful vibrations to the hands and arms of the operator. This versatile tool is based on the standard Model 190, easily converted to the standard handle or ergonomic handle, and vice versa. No power is lost from the standard tool but it does increase efficiency and output due to the reduction in operator fatigue.


Model - Part # Units M190A - 18618 M190A - 18619
Chuck Size in  1 - 1/8 x 6  1 - 1/4 x 6 
Bore Diameter in  2 - 5/8 
Stroke  in  6 - 1/8
Blows per Minute bpm 1,350 
CFM @ 90 psi CFM  75 - 80 
Weight lbs  90
Length in  31
Air Inlet NPT in  3/4 MALE NPT


  • AIRGO-LINE® Ergonomic Back Head (interexchangeable with standard Back Head)
  • Steel automatic valve
  • Built-in automatic oiler
  • Rubber handle grips 
  • Latch-type retainer 
  • Swivel hose connection
  • Noise-dampening mufflers available 
  • Four-bolt backhead 
  • Universal hose connector supplied

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.