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Asker® MicroDigital Durometer Model MD—1
Asker® MicroDigital Durometer Model MD-1 Asker® Instruments
Ongoing advances in technology requires the miniaturization, micronization and “super-miniaturization” of many products and their constituent parts.
An example of small parts
These same technological advancements have raised the requirements of quality assurance and quality control. The requirements of the instrumentation to meet these needs has been raised to new heights as well.
Asker® has met these challenges with the development of the MD—1 MicroHardness Digital Durometer! This precision instrument accurately and precisely determines the indentation hardness of elastomers, TPEs and similar materials as thin as 1 mm.
Asker® MD—1 MicroDigital Durometer: Features
Closeup View of the MD-1 Indentor and Arm 1—2—3 Automatic Testing Cycle:
  1. Position Sample on the stage;
  2. Press [MEASURE], the test is made automatically and the result digitally displayed;
  3. Press [PRINT] to generate a “hard—copy” of the test result.
Operator Selectable Parameters:
  1. [NORMAL], Standard Test, 1s;
  2. [PEAK HOLD] Maximum reading of standard test held, similar to a “maximum reading hand” on a typical analog durometer;
  3. [TIMER HOLD] timer adjustable test result;
  4. Adjustable UCL, LCL and Go—No—Go parameters.
Closeup View of the MD-1 Operating Control Panel w/ Digital Readout
  1. Automated testing procedure virtually eliminates operator induced error;
  2. Precision X—Y stage, micrometer positioning adjustments in 0.01 mm increments, allowing for precise specimen placement and accurate single sample multiple determinations;
  3. Pneumatic dampening mechanism ensures precise control of the indentor's rate—of—descent and applied force;
  4. Adjustable leveling feet and 190 x 280 mm (7.48 x 11.02 in.) footprint allow for stability;
  5. Simplicity of the mechanical design assures virtually maintenance—free operation;
  6. The cantilever—spring plate design eliminates “wear” items such as bearings, bushings, gears and pinions commonly employed by other durometer instruments.
Schematic of the MD-1 Sensing Compmonents
Closeup View of the MD-1 Precision X-Y Stage
Asker® MD—1 MicroDigital Durometer: Specifications
Force Application: Gravity, pneumatically dampened, cantilever—spring plate
Spring Force: 22 Nm (2.24 gf) at Zero
332 Nm (33.85 gf) at Full Scale
Indentor: 0.16 mm (0.0063 in.) Ø Cylinder
Scale: 0 — 100
Resolution: 00.0, in 00.1 increments
Maximum Daylight: 67 mm, adjustable to surface contact
X—Y Stage: 80 mm Ø, adjustable in 0.01 mm increments
Data Output: BCD Parallel—TTL Level or RS—232C & Integral Printer
Power: 110 VAC
Weight: 20 kg (44.1 lb.)
List Price: Please Submit a Request for Quotation (RFQ)
Schematic of the MD-1 Physical Dimensions
Schematic of the MD-1 Physical Dimensions

Index Terms: Asker Durometers, Asker Durometer, microhardness, Shore hardness, pocket durometer, Shore scale, hardness, rubber hardness, plastic, plastic hardness, indentation hardness, ebonite, ebonite hardness, rubber hardness testing, rubber testing, hardness testing, durometer hardness, testing, ASTM D2240, D2240, ASTM D1957, ISO 868, ISO 7619, ISO 8517, ISO 7267, ISO 21509, ISO 18517, JIS K6253, JIS K6251, JIS K6252, JIS K 6253, JIS K6254, JIS K6255, JIS K6256, JIS K6257, JIS K6258, JIS K6259, JIS K6260, JIS K7215, JIS K6050, DIN 53505, DIN 53 505, CNS, K6898, BS 903, BS 2782, BS ISO 21509, BS EN ISO 868, GB/T 10807, Asker, Asker C, SRIS 0101, MIL-STD-45622A, MIL-I-45208A, MIL-STD-120, 83.060, 83.080, hysteresis, creep, Young's Modulus.
Copyright © 2006 CCSi, Inc. • All Rights Reserved • Published August, 2006
Corporate Consulting, Service & Instruments, Incorporated
221 Beaver Street • Akron, Ohio 44304 USA
Telephone: 800.742.8535 / 330.376.3600 • Facsimile: 800.229.9329 / 330.376.8500