The TABER® Rotary Platform Abrasion Tester - Model 5135 or 5155is commonly referred to as the Taber Abraser (Abrader) or Rotary Platform Dual (Double) Head Tester.  First introduced in the 1930's, this precision built instrument was developed to perform accelerated wear testing.  Capable of providing reliable data in a matter of minutes compared to the years that may be required by in-use testing, the Taber Abraser (Abrader) rapidly became the world standard for evaluating abrasion resistance.

Since its inception, the Taber Abraser has been used for quality & process control, research & development and material evaluation.  Used to test a wide spectrum of materials, the instrument has been referenced in numerous standards and specifications (including plastics, coatings, laminates, leather, paper, ceramics, carpeting, safety glazing, etc.).

Description

Taber tests involve mounting a flat specimen approximately 100mm square or round to a turntable platform that rotates on a vertical axis at a fixed speed.  The standard material thickness that can be evaluated with the Taber Rotary Abraser is 6.35 mm (materials greater than 6.35 mm but less than 40 mm can be tested with optional accessories). Two genuine Taber abrasive wheels, which are applied at a specific pressure, are lowered onto the specimen surface.  

Characteristic rub-wear action is produced by contact of the test specimen against the sliding rotation of the two abrading wheels.  As the turntable rotates, the wheels are driven by the sample in opposite directions about a horizontal axis displaced tangentially from the axis of the sample.  One abrading wheel rubs the specimen outward toward the periphery and the other, inward toward the center while a vacuum system removes loose debris during the test.  The wheels traverse a complete circle on the specimen surface, revealing abrasion resistance at all angles relative to the weave or grain of the material.  The resulting abrasion marks form a pattern of crossed arcs in a circular band that cover an area approximately 30 cm².

Each turntable has dual abrading arms that are precision balanced.  Independently operated, the abrading arms can be raised (or lowered) to mount or inspect specimens.  Each arm is loaded for 250 gram pressure against the specimen, exclusive of the weight of the wheel.  To increase the load to 500 or 1000 grams, a mount for auxiliary weights is located on the outside of the abrading wheel bearing assembly.  This location ensures that weights are concentric with the abrading wheel.  A stud on the rear end of the abrading arm is used to carry an optional counterweight (used to reduce the load by 50, 125 or 175 grams).

Taber Abrasers Model 5135 or 5155 offer the following standard features:

• Specimen turntable speed control options of both 60 rpm and 72 rpm.
• Easy-to-use operator interface that includes tactile feel buttons and a four line digital display.  Simple on-screen instructions allow the operator to change the test parameters via the MENU button.  An internal memory stores the settings.
• A vacuum system is included and is critical for the proper operation of the instrument.  The vacuum nozzle(s) is hinged to an adjustable mounting at the rear of the housing.  A precision vacuum nozzle adjustment control allows the height to be modified for accommodating varying specimen thickness.
• Precision stainless steel weights of 250 grams and 750 grams are furnished to provide standard wheel loads of 500 and 1000 grams.  Weights are marked to show total load on each wheel. This marking includes the weight of the abrading arm (250 grams).
• A Quick Release Mounting Hub permits quick wheel mounting without the need of a locking nut, increased clearance for the vacuum pick-up nozzle and a larger viewing area for the test specimen.  A beveled retaining nut provides a positive locking force on the wheel hub retaining lip making certain that the wheels remain securely fastened until disengaged.
• Assembled in a sturdy, sealed aluminum housing.

Models

The TABER^® Abraser (Abrader) is available in two models - single or dual specimen tables.  Both offer the same durable design and can be used interchangeably.

TABER^® Abraser (Abrader) - Model 5135 (115/230V; 60/50Hz)

Model 5135 features a single specimen turntable.

TABER^® Abraser (Abrader) - Model 5155 (115/230V; 60/50Hz)

Model 5155 features two specimen turntables, allowing you to perform two tests simultaneously (test two different or identical specimens for comparison or contrast).  Separate function keys operate the turntables independent of each other.