Popular Automatical Los angeles abrasion testing equipment
Los angeles abrasion testing machine measure under the standard condition,coarse aggregate (sand) resistance to friction and impact ,abrasion loss expressed by percentage .
The L.A. abrasion machine is used to test crushed rock, slag, and gravel for their resistance to abrasion. The unit has a welded steel drum that has a 28" I.D. and is 20" long. The drum and the frame are welded to ensure strength and have a tight fitting cover and gasket. The drum is rotated at 30-33 RPMs by a 1 hp motor that is run through a gear reduction unit. The control panel has start, stop, and reset buttons. There is a manually set counter that stops the rotation at a preset of revolutions. The drum can be turned by hand for ease in loading. The unit is furnished with a catch pan and 12 steel balls.
Los Angeles abrasion loss method is an important index, especially for the stones using performance of concrete and aslt mixture and grass-roots stone rutting resistance, compressive strength, abrasion resistance and durability are closely related.
| Technical Parameters | |
| Parameter Names | Details |
| Voltage | 380V±5V |
| Sample cylinder inner diameter | 710mm±5mm |
| Inside length | 510mm±5mm |
| Sample tube rotary speed | 30r/min-33r/min |
| Steel ball wheel test | |
| Diameter | 46.8mm |
| Mass | 390g—445g |
| The total mass of 12 abrasion test ball | 5000g±25g |
Replacement warranty : 1 year
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