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National Scientific & Testing Co.

Poldi Hardness Tester

Poldi Hardness Tester
Business Type Manufacturer, Exporter, Supplier, Retailer, Wholesaler

Preferred Buyer From

Location Worldwide

The Poldi Hardness Tester is suitable for measuring the Brinell Hardness of Steel, Cast iron, Brass Aluminum, Copper etc.



Load is applied by a hammer blow on the specimen and a standard test bar in linear direction through a hardened steel ball of 10 mm dia. The impact load on both is the same. The extent of indentation on the specimen and the test bar depends on their hardness. The two diameters of indentations on test bar and specimen are measured by a magnifier supplied along with the tester. The hardness of the specimen can be determined, by referring got the chart supplied with the machine.



  • Brinell Ball : 10 mm dia. Fixed in a special holder with a spring loaded plunger
  • Standard Test Bar : Each bar individually calibrated and multiplying factor Marked there on.
  • Eye Piece : 8 X
  • Measuring range : 10 mm
  • Scale graduations : 0.1 mm
  • Magnification : 10 x
  • Accuracy of measurement : 0.05 mm
  • Hardness Table : Comparison Tables for finding hardness. Separate Tables for Steel, Cast Iron, Brass, Copper and Aluminum.
  • Gross Dimensions : 170 x 65x 40 mm (approx.)
  • Poldi Test Bar Size : 12 mm x 12 mm x 150 mm

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