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ZC3-A New-Type Concrete Rebound Hammer

Complies with the industry standard JGJ/T 23-2011, “Technical Code for Testing Concrete Compressive Strength by the Rebound Method.”

Category:

Non-Destructive Testing Equipment for Construction

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E-mail:

lbt@lbt.ltd

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+86-15102211717

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Description

Product Description:

Complies with the industry standard JGJ/T 23-2011, “Technical Specification for Testing Concrete Compressive Strength by Rebound Method.” It is specifically designed for nondestructive testing of the compressive strength of concrete structural members, with a nominal impact energy of 2.207 J. This medium‑sized rebound hammer features a direct‑reading pointer display system, and all its technical parameters meet the requirements of the People’s Republic of China’s national metrological verification regulation JJG 817-2011, “Rebound Hammer.” Test range: In accordance with national industry standards, it can be used to assess concrete compressive strengths between 10 and 60 MPa; in compliance with relevant local standards, it is applicable to concrete compressive strengths ranging from 10 to 80 MPa.

Product Features:

Lightweight and easy to use—requiring only one-third the force of comparable products—this instrument offers flexible operation, stable readings, an affordable price, and a simple learning curve. Its guiding button and pointer shaft support are manufactured using an integrated molding process, ensuring they remain securely fastened even after years of repeated impacts. The spring is made from imported steel wire, while the button features an integrally formed design produced via a stretching process, effectively preventing disengagement. An improved pointer structure makes friction adjustment more convenient, and an optimized hook‑shaped curvature combined with a spring‑loaded design reduces impact effort, enabling instant triggering. This product is a nondestructive testing instrument.

Meets the standard:

People’s Republic of China National Metrological Verification Regulation “Rebound Hammer” JJG 817-2011

National Standard of the People’s Republic of China “Rebound Hammer” GB/T 9138-2015

Technical Specification for Testing Concrete Compressive Strength by the Rebound Method, JGJ/T 23-2011

Technical Specifications:

Parameter	Specification value
Nominal kinetic energy	2.207J
Pointer length	20.0±0.2 mm
Pointer friction force	0.65±0.15N
Spherical radius at the end of the firing pin rod	R25±1.0 mm
Working length of the firing pin return spring	61.5±0.3 mm
Extended impact tension spring	75±0.3 mm
Hammer release position	At the “0–1” mark on the scale
Anvil calibration value	80±2
Significant tension spring stiffness	785 ± 30 newton-meters

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FAQs

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Customer Reviews

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★★★★★

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ZC3-A New-Type Concrete Rebound Hammer

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