The Schmidt OS-120 Pendulum Hammers are designed to test on softer material such as light weight concrete, gypsum boards, fresh concrete and the mortar of joints in brickwork. Their unique design allows easy to handle measurements on vertical and horizontal surfaces.

Schmidt OS-120 is the only rebound hammer worldwide working with the pendulum system, thus it must not be loaded on the test surface. The larger plunger surface on the Schmidt OS-120PT allows tests on soft concrete starting with a compressive strength of 1 MPa.

• Pendulum type rebound system
• Large, half circular scale with high resolution
• Two different plunger types adopted to the different applications

• Assessment of light weight concrete, gypsum boards and fresh concrete
• Assessment of the mortar quality of joints in brickwork

Standards:

• The rebound number is determined on the basis of the following standards: EN12504-2 (Europe), ASTM C 805 (North America), JGJ/T 23-2011 (China). Applies to Schmidt OS-120PT only.
• For the creation of user defined conversion curves, we recommend the procedures described in EN 13791 (Europe), ASTM C805, ACI 228.1R (North America), JGJ T23-2011 (China).
• Applies to Schmidt OS-120PT only.

Technical data

• Measuring range: 1 N/mm² (145 psi) - 5 N/mm² (725 psi)
• Impact energy: 0.833 Nm (0.614 ft lbf)
• Hammer mass: 720 g
• Hammer head diameter: 40 mm
• Weight: 3,45 kg
• MatmenysDimensions of housing

Warranty: 6 months