HM-MX2 Coefficient of Friction Tester — Moving Platform for Large and Irregular Specimens

Product Introduction

The HM-MX2 is a high-capacity coefficient of friction tester from HM Instruments engineered for laboratories and production facilities that handle oversized, non-flat, or irregularly shaped specimens unsuited to conventional moving-sled instruments. Its moving platform configuration allows the test table itself to travel beneath a stationary sled or specimen holder, accommodating large-area samples such as conveyor belt sections, molded rubber pads, metal composite panels, and automotive brake components that exceed standard specimen dimensions. The instrument shares the same precision electromechanical core as the HM-MX1 — closed-loop motor, dual linear rail guidance, industrial-grade force sensors with 0.001 N resolution, and relative error within ±0.5% — but extends the test envelope to larger formats within a 600 × 300 × 212 mm frame. The 7-inch capacitive touchscreen presents real-time friction curves, automatically distinguishes static from kinetic coefficients, and stores up to 20,000 test records with USB export and thermal printing. Demagnetized components, GMP-compliant data management with audit trails, and multi-layer safety protection make the HM-MX2 suitable for rigorous industrial R&D and quality-assurance environments. At $2,500, it addresses the testing gap between compact laboratory instruments and full-scale custom friction rigs for large or geometrically complex materials.

Applications

• Conveyor belts and transmission belts — large-section friction characterization for bulk material handling systems

• Metal composite strips and industrial membranes — wide-format specimen slip and peel-friction evaluation

• Molded rubber and polymer parts — friction testing of non-flat automotive, marine, and machinery components

• Automotive brake pads and friction linings — large-area braking material coefficient verification

• Wood panels and engineered lumber — surface friction of treated timber, plywood, and laminated beams

• Building material tiles and flooring — slip resistance of large ceramic, vinyl, and composite floor panels

• Protective coatings on large substrates — friction behavior of painted, powder-coated, and anodized surfaces

• Tire tread sections and shoe soles — oversized elastomer friction measurement for footwear and vehicle applications

Key Features

1. Moving platform design accepts large and irregular specimens that cannot fit within standard moving-sled constraints.

2. Closed-loop motor drive with dual linear rail system maintains precise speed control from 1 to 500 mm/min across the extended stroke.

3. 7-inch capacitive touchscreen with real-time friction curve display and automatic static/kinetic coefficient calculation.

4. Single-test acquisition of both friction coefficients — no need to reposition oversized samples for separate static and kinetic measurements.

5. Industrial-grade ADI acquisition system with custom force sensors achieving 0.001 N resolution and ±0.5% relative error.

6. Repeatability within 1% ensures consistent results even on textured, porous, or geometrically variable surfaces.

7. Response time under 60 ms captures rapid force transients during initial slip on high-friction or tacky materials.

8. Demagnetized platform and fixture components prevent magnetic interference when testing ferrous metal composites.

9. GMP-compliant software with operator permission levels, electronic records, time-stamped audit trails, and data integrity safeguards.

10. Limit switch, overload alarm, and power-fail data preservation protect the instrument, operator, and test records.

11. 20,000-test onboard storage, USB flash drive export, and built-in thermal printer for comprehensive documentation.

12. WiFi over-the-air firmware upgrades keep the instrument current with new standards and feature enhancements.

13. Chinese-English bilingual interface supports multinational laboratory teams and export certification workflows.

Technical Specifications

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