Main features

Star feeder magazine
10-chamber-star feeder with brushes to clean the transport way

Weight measurement
External Sartorius balance but integrated data

Diameter
up to 28 mm

Lenght measurement Oblongs
Test samples up to 28 mm

Hardness testing
Measuring range 3 to 500 Newton

LAN/USB interfaces
LAN /USB interfaces for connecting printer or into networt for external control and storage of results by the optional MC.NET software.
Different versions available
Hardness – TBH 425
Hardness and diameter – TBH 425 D
Hardness/diameter/thickness – TBH 425 TD
Hardness/diameter/thickness/weight – TBH 425 WTD
The ERWEKA TBH 425 D is based on the TBH 425, but in addition offers diameter/length measurement and documentation options of the samples. With this functions it can be ensured that the samples are placed in the correct alignment for the hardness testing process. The semi-automated TBH 425 TD provides in addition to the standard TBH 425 an automatic measurement of sample’s diameter/length and thickness by a motor driven and calibratable electronic linear potentiometer.
The unit can either fulfill a three parameter hard-copy print-out by a connected printer (optional) or can transfer the data to a PC with the optional MC.NET software. The ERWEKA TBH 425 WTD, which is based on the TBH 425 TD, is additionally equipped with an external Sartorius or Mettler analytical balance with windshield (20 mg to 64 g; accuracy ± 0.1 mg; Sartorius balance with in-built calibration weight) for connection with the unit. Before testing the other parameters, the sample is manually placed onto the balance, the weight is determined and the results are transferred to the unit’s electronics.
