H&D 3000

ISO 2781 ASTM D1817

2 instruments in 1: With the MonTech H&D 3000, hardness AND density testing of cured rubber samples is made simple, fast and reliable. Arbitrary test sequences are easily pre-programmed, samples are sequentially processed and test data is automatically collected, without the need for operator involvement. Due to the unique rotary tray design, no manual magazine handling is needed; the instrument can be continuously loaded and operated.

The H&D 3000 combines two important tests in a single instrument: Hardness and density are simultaneously measured on cured rubber discs. The instrument is completely software programmable for fully automated and unattended sample processing from a 20- position sequential rotary tray. Up to 5 individual Shore A hardness readings can be taken on each sample – afterwards the weight of the sample in air as well as in a temperature compensated immersion liquid is taken. Finally the reliable measured hardness and specific gravity test results, median and mean values as well as Pass/Fail status are automatically calculated and reported.

Hardness measuring head

The motorized and weight loaded hardness measuring unit featuring an integrated alignment and a digital measurement of the indentor displacement guarantees the highest precision hardness readings on up to 5 different test points per sample. Various types of hardness heads in accordance to different international standards such as Shore A, Shore D and IRHD are available. (multiple or interchangeable confi gurations available)

Precise sample handling

Stainless steel linear, rotational and multiposition electronic / pneumatic actuators provide safe and reliable handling of test samples. Actuators are mechanically separated into two groups: one for dry and one for wet samples to avoid any cross-contamination of the samples prior to weighing in the immersion liquid.

Integrated pump circuits

Ensure that the level of the density liquid in the dip tank is carefully controlled. After each density test, an adjustable amount of liquid is automatically renewed, keeping the density liquid fresh and in good condition. Also the pumps can be used to automatically fill, empty and change the density liquid in less than 20 seconds.

Endless rotary tray magazine

The rotary sample tray allows continuous operation of the machine, totally avoiding any
unproductive time. The testing area is separated by a supervised transparent safety door and covers all around the machine.

Technical Specification

TECHNICAL SPECIFICATION
  • Samples

    Cured rubber discs

  • Sample diameter

    30 – 45 mm

  • Sample thickness

    5 – 8 mm

  • Sample capacity

    Continuous rotary sample tray with 20 sample capacity (Optional sample trays up to 2000 samples are available)

  • Data Interface

    Ethernet (10/100 MBit), USB (int.), CF card (int.), RS232 (opt.)

  • Power supply

    100 – 230V, 50/60 Hz + N + PE, Single phase, about 1 Amps

  • Dimensions (H x W x D)

    600 mm x 650 mm x 680 mm

  • Instrument options

    – Sample magazines for up to 2000 samples – Barcode scanner for Compound and Batch identifi cation – Additional Hardness testing heads: Shore B, C, D, DO, O, OO, OOO, Micro A, Micro D, IRHD N, M, H, L, VLRH – Sample separation in diff erent containers

  • Technical specification – Density
  • Test method

    Hydrostatic weighing according ISO 2781, ASTM D1817

  • Measurement range

    < 1.0 g/cm³ to 2.8 g/cm³

  • Immersion Fluid Temperature Measurements

    Standard

  • Technical specification – Hardness Shore A
  • Test method

    Shore A in accordance with: ISO 868, DIN 53505, ASTM D2240, ISO 7619, NFT 51-174, BS 903-A26

  • Indenter

    Hardened steel rod Truncated 35° cone 0.79 mm diameter

  • Measurement range

    0 – 100 Shore A

  • Pressing force / load

    Contact pressure: 12.5 N Spring Force: 8.065 N

  • Resolution

    0.1 Shore

  • Technical specification – Hardness IRHD N
  • Test method

    IRHD N in accordance with: DIN ISO 48, ASTM D1415, NFT 46-003, BS 903-A26

  • Indenter

    Spherical Ball 2.50 mm diameter

  • Measurement range

    0 – 100 IRHD

  • Pressing force / load

    Preload: 0.29 N for 2 Seconds Main load: 5.4 N for 1-99 Seconds

  • Resolution

    0.1 IRHD