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ZC20-D Digital Mortar Rebound Hammer

The ZC20-D digital mortar rebound hammer is used to determine the strength of mortar in masonry constructed with sintered common bricks or sintered porous bricks.

Category:

Non-Destructive Testing Equipment for Construction

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E-mail:

lbt@lbt.ltd

WhatsApp:

+86-15102211717

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Description

Product Description:

The ZC20‑D digital mortar rebound hammer is used to determine the strength of mortar in masonry constructed with sintered common bricks or sintered porous bricks. In conventional mortar rebound hammers, the low stiffness of the impact spring makes the rebound value susceptible to pointer friction and the self‑weight of the slider. This instrument features an integrated direct‑transmission design that effectively eliminates issues such as abnormally low or fluctuating rebound values caused by indirect transmission, thereby significantly enhancing the stability of rebound readings. The improved level of automation substantially boosts the efficiency of rebound testing and reduces the workload of testing personnel. In accordance with relevant national and industry standards, this mortar rebound hammer is suitable for strength measurements within the 2–15 MPa range.

Product Features:

Built-in national and local testing standards; real-time display of rebound strength values at each measurement point; automatic calculation of test‑area strength and estimated component strength upon completion of sampling; compact, modular design for easy replacement of mechanical rebound hammers; integrated high‑capacity rechargeable lithium‑ion battery with long runtime; equipped with a large‑capacity memory capable of storing data from 999 components and 159,800 measurement points, with up to 50 test areas per component. After connecting to computer‑based data‑processing software via a data cable, the device can automatically import data, enabling rapid processing of test results and generation of test reports. Supports multiple report formats and allows for system upgrades; based on user feedback, our company will regularly update the system to continuously enhance the user experience.

Applicable Standard:

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

National Standard of the People’s Republic of China: Rebound Hammer, GB/T 9138

Standard for On-site Testing of Masonry Works, GB/T 50315

Technical Specifications:

Project	Specifications
Nominal kinetic energy	0.196J
Impact spring stiffness	69±4 newton-meters
Effective length of the stroke spring	61.5±0.3 mm
Extended Spring-Loaded Type	75±0.3 mm
Pointer friction force	0.5±0.1N
Radius of the spherical joint end face	R25±1 mm
Anvil calibration value	74±2
Indication consistency	≤+1
Communication rate	9600bps
Display	0.96-inch 128×64 (dot-matrix) OLED display
Power supply	1800 mAh, 3.7 V lithium-ion battery

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FAQs

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Customer Reviews

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From Thomas Bennett, Quality Director, UK plastic pipe factory

2026.06.05

★★★★★

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Middle East Construction Lab｜Purchase: Universal Electronic Testing Machine & Geotextile Test Equipment

From Mohamed Kareem, Lab Manager, UAE third-party construction inspection institute

2026.06.05

★★★★★

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From Tanaka Hiroshi, R&D Supervisor, Indonesia rubber materials enterprise

2026.06.05

★★★★★

“Laibote’s Vicat softening point tester and electronic tensile machine have been applied to our raw material incoming inspection and new formula development for over one year. High testing accuracy effectively controls our product defect rate. What impresses us most is their responsive after-sale service; technical staff reply our troubleshooting requests within 24 hours even for time zone differences. Compared with expensive European brands, Laibote’s equipment balances quality and price excellently, we plan to expand procurement of auxiliary testing instruments next quarter.”

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Keywords:

ZC20-D Digital Mortar Rebound Hammer

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Mobile:+86-15102211717

Whatsapp:+86-15102211717
E-mail:lbt@lbt.ltd

Address:Tianjin Jinghai Economic Development Zone

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