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A.W.R. Smith Process Instrumentation cc

Tel: (011) 782 7279 / 782 6201 / 888 7144 / 782 6840     Fax: 086 648 7664     E-mail: sales@instruments.co.za

34 Malibongwe Drive, Robindale, Randburg 2194   (Gauteng - South Africa)  Map

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     Concrete & Mortar Hardness / Compressive Strength

Portable Rebound Test Hammers

HT-225A Concrete Test Hammer

Manual Data Sheet Back

Technical Specification:

Measuring range

10 ~ 60 MPa

Impact energy

2.207 J

Spring extension

75 ±0.3mm

Friction of pointer system

0.65 ±0.15Nm

Length of pointer

20.0 ±0.2mm

Radius of spherical tip

25 ±1.0mm

Working length of the spring

61.5 ±0.3mm

Mean value of steel-anvil rating

80 ±2

Flip tension spring rigidity

785.0 ±40.0Nm

Operating temperature

0ºC ~ +40ºC

Storage temperature

-10ºC ~ +50ºC

Dimensions

Hammer

280mm × 60mm diam.

With case

320mm x 170mm x 86mm

Weight

Hammer

1.0Kg

With case

2.2Kg

Accessories

carry case, spare spring, grinding stone and manual

HT-20 Mortar Test Hammer

Manual Data Sheet

Technical Specification:

Measuring range

1 ~ 25 MPa

Impact energy

0.196 J

Spring extension

75 ±0.3mm

Friction of pointer system

0.5 ±0.1Nm

Length of pointer

20.0 ±0.2mm

Radius of spherical tip

25 ±1.0mm

Working length of the spring

61.5 ±0.3mm

Mean value of steel-anvil rating

74 ±2

Impact tip diameter

8mm

Operating temperature

0ºC ~ +40ºC

Storage temperature

-10ºC ~ +50ºC

Dimensions

Hammer

268mm × 54mm diam.

With case

320mm x 170mm x 86mm

Weight

Hammer

1.0Kg

With case

2.2Kg

Accessories

carry case, spare spring, grinding stone and manual