The APT Model 131 Back fill Tamper is used for soil compaction, temporary filling of holes, asphalt packing etc. Applications range from foundation and pavement repair to the installation of power or telephone poles. APT Tampers come with a choice of 3 styles of butts, a 6" diameter (approx. 5 lbs), 3" round butt (approx. 5 lbs) and a pole butt (approx. 5 lbs). The half-moon shaped pole butt is for compaction around a pole and the 3" diameter butt for confined space compaction
| Model - Part # | Units | M131 - 5214 | M131 - 5214-03 | M131 - 5214-04 |
| Butt Type | in | 6 | 3 | POLE |
| Bore Diameter | in | 1 - 1/2 | ||
| Stroke | in | 5 - 1/2 | ||
| Blows per Minute | bpm | 1,680 | ||
| CFM @ 90 psi | CFM | 38 - 42 | ||
| Weight | lbs | 37 | ||
| Length | in | 51 - 7/8 | ||
| Air Inlet NPT | in | 1/2 FEMALE NPT | ||
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.
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.
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.