HT-550A High Strength Concrete Rebound Tester

HT-550A High Strength Concrete Rebound Tester Application Industry

It is used for the compressive strength of concrete in high-rise building components, bridges, and bridge structures (plates, beams, columns, bridges) in structural engineering. It is usually suitable for concrete structures or components with a strength of 50-90MPa

Functional Features

High toughness alloy steel springs with good damping and fatigue resistance when purchased;

Precision suitable for CNC precision machining of refined movements, confirming stable rebound values

The pointer axis is smooth, with uniform friction and high measurement stability

The precision ground spherical zeroing screw matches a higher strength hook, resulting in smoother rebound firing and wear resistance (based on actual reports), making it less likely to bounce off

Adopting high-strength and hard aluminum body shell, it is lightweight and resistant to pressure and drop

Customized protective sleeve handle for more comfortable rebound operation

Data processing software that supports raw record input, facilitating the production of inspection reports

According to the standard

GB/T 9138-2015 "Rebound Tester"

JJG 817-2011 "Rebound Tester" Verification Regulations

JGJ/T 294-2013 "Technical Regulations for Testing the Strength of High Strength Concrete"

Technical Indicators

Pointer Length: 20.0 ± 0.2mm

Pointer Friction Force: 0.65 ± 0.15N

Standard Energy: 5.5J

Working Length of Impact Tension Spring: 86 ± 0.5mm

Tensile Length of Impact Tension Spring: 100 ± 0.5mm

Stiffness of the striking spring: 1100 ± 50N/m

Steel drilling rate setting: 83 ± 2

Impact radius of the striking rod: 18 ± 1.0mm

Decoupling position of the striking hammer: at the scale line "100"

Jumping position of the striking hammer: at the scale line "0+1"