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Accelerated Polishing Machine
 
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$16,006.00 HM-614  Accelerated Polishing Machine, ASTM/AASHTO,115V/60Hz
$12,917.00 HM-614F  Accelerated Polishing Machine ,ASTM/AASHTO,230V/50Hz
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HMA-240 Abrasives-Silicon Ca... ($245.00)
HMA-250 Tyred Wheel Assembly... ($800.00)
HMA-251 Replacement ASTM Pne... ($88.00)
HMA-258 Specimen Mold for Ac... ($138.00)
HMA-259 Mold Plate for Accel... ($85.00)
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Estimated Shipping Weight:
450.0 pounds   204.1 kilograms
Test Methods
AASHTO T279
ASTM D 3319
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Accelerated Polishing Machine, ASTM/AASHTO,115V/60Hz
 
HM-614, Accelerated Polishing Machine Enlarge Photo
HM-614, Accelerated Polishing Machine
 

HM-614 Accelerated Polishing Machine

The Accelerated Polishing Machine by James Cox and Sons determines aggregate wear through action of vehicle tires. 3/8—1/2in (9.5—2.7mm) pieces of aggregate are bonded in molds to form fourteen curved segments. Segments are clamped to the "road wheel" to form a continuous aggregate surface 1-3/4in (44.5mm) wide and 16in (406mm) in diameter. In testing, the road wheel is driven at 320 ±5rpm in loaded contact with an 8in (203mm) diameter rubber-tired wheel while abrasive is fed to the contact area. Friction values are determined after polishing by use of a Pendulum Skid Tester.

The HM-614 consists of a welded steel frame on adjustable pads. This unit maintaining an 88lbf (391N) load on the road wheel and utilizes silicon carbide grit abrasive with a special grit feeder and Goodyear pneumatic-tired wheel assembly. The road wheel is driven by TEFC motor via an adjustable timing belt. Tests are automatically terminated by a preset revolution counter. Water is gravity fed from a tank through a calibrated flow meter, and is collected with used abrasive in a removable tray. Tire loadings to the road wheel are controlled by a mechanical lifting device. Units are supplied with two specimen molds, two mold plates, required feeders, wheel assemblies, wrenches, mounting pads, and operating instructions. The Accelerated Polishing Machine is supplied with a manufacturer's five-year warranty. Order abrasives separately. Each ASTM/AASHTO test requires about 10lb (4.5kg) of silicon carbide grit. Overall Machine Dimensions: 30x28x42in (762x711x1,067mm), WxDxH. Est. Ship Wt.: 450lb (205kg).

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