Tinius Olsen introduces a new line of Hardness Testers. These new testers comprises over nine frames, and multiple variations on those frames, that test on almost all scales, including Rockwell, Superficial Rockwell, Brinell, Vickers, Knoop, micro Vickers, macro Vickers, and Knoop; the series also includes five Universal testers. All frames feature precision loadcell based measurements rather than dead weight loading, touch screens to aid user friendliness and increase the learning curve slope, connectivity through USB and WiFi, and the ability to consolidate resultant data with other TO test machine results within the Horizon software program.

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Before learning about Aggregate Polishing Machine, a question strikes our mind that why do we need Polished Aggregates (Stones) and what is Polished Stone Value?

• The Polished Stone Value provides a measure of the resistance of road aggregates to polishing under the action of vehicle tyres on a road surface, paving stones & paving blocks and giving a measure of the resistance to Skidding. Aggregate Polishing Machine polishes samples of Aggregates. It is a fundamental test which is often used when selecting aggregates for Road Surfacing materials.

Tinius Olsen manufactures state of the art Aggregate Polishing Machine. Specimens are manufactured in accurately machined and matched moulds. They are then removed from the moulds and located on the 'Road Wheel'. The wheel is now rotated and enters in contact with solid rubber tyre, spring loaded. Abrasive charges are continuously fed by mechanical feeders at fixed speed. Feed rates for corn emery and flour emery are as per British and American standards. The water is supplied at a controlled rate through a water container. Used water and abrasives are collected in a large removable tray. Electrical Supply is protected by the Thermal cutouts and emergency stop button.

Suitable for operation on 220V, 50Hz, Single phase, AC Supply.

Features:

• High Safety Standards.
• Satisfies the proposed British (BS812) and ASTM (D3319) Standards.
• Sealed long life bearings.
• Sealed control bearings.
• Heavy welded steel mainframe with adjustable pads.
• Specimens manufactured and easily removed from accurately machined moulds.
• Water gravity fed from high level tank through calibrated flow meter.