• Digital Rebound Hammers

Digital Rebound Hammers

ASTM C-805, BS-1881-202, ISO/DIS 8045, EN 12 504-2, ENV 206...

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For concrete compressive strength analysis in the field and material hardness testing.

Digital hammers for the quick and easy determination of the strength of concrete.

James Instruments digital test hammers are an advanced, completely automated system for estimating concrete compressive strength. Its calculation, memory and recording functions allow for quick, easy and accurate test results.

Discard values for multiple test results can be set; the mean, median and compressive strength can also be calculated. The addition of modern microprocessor technology allows the data to be stored, printed and transferred to a personal computer for further analysis, or inclusion in your reports.

The unit comes with an integrated alpha “ numeric digital display, and control panel. You can switch between standard or metric units.

The field printer mounts on the belt for ease of use. USB Connection to a personal computer is via the USB interface.

Digital Model W-D-2000 

Automatic calculation of mean rebound number, compressive strength and more; Field Printer, PC connection and software for downloading .

Digital Model W-D-1500 

Automatic calculation of mean rebound number, compressive strength and more; Application: Rapid estimate of concrete strength.


BS-1881-202 Grt. Brit. 
ISO/DIS 8045  Intl.
EN 12 504-2 Europe
ENV 206 Europe
NFP 18-417 France
B 15-225 Belgium
JGJ/T 23-2001 China
JJG 817-1993 China

Calibration Anvil Model W-C-7312

It is recommended that calibration of the test hammers be checked regularly - usually after about 2000 strokes. The James Calibration Anvil (W-C-7312) has been designed for just that purpose. The Calibration Anvil weighs approximately 35 lbs. (16kg) and should be ordered separately.

Item# Item Name
W-D-1500 Digital Rebound Hammer Basic System 
(Digital Rebound Hammer 1500, without Printer or Software)
W-D-1500-ext Digital Rebound Hammer Basic System 
extended warranty
W-D-2000 Digital Rebound Hammer Complete System 
(Digital Rebound Hammer 1500 With Printer And Software)
W-D-2000-ext Digital 2000 Rebound Hammer Extended Warranty

Display 2x16 Trans - reflective
Construction All Aluminum for rugged construction environment
Operating Temperature 0° to 50° C (32° to 122° F)
Batteries 2 x AA
Ap. Size 100mm x 100mm x 270mm ( 4 x 4 x 10 )
Ap. Weight 1.6 Kg ( 3.5 lbs.)
Printer Size 64mm x 49mm x 31mm ( 2.5 x 1.9 x 1.2 )
Weight up to 0.270 kg ( 0.6 lbs ) with paper
Battery Internal Lithium ion with 1 yr. approximate life
Charger 100VAC - 240VAC 5 VDC 3.0A
Operating Temperature 0° to 50° C (32° to 122° F)
Software Windows PC Compatible / USB interface required
Impact Energy 2.2 Nm