Information on the most widely used ASTM standards within the materials testing industry
Model: JBW-300B
JBW-B series impact tester is mainly used to determine the anti-impact capability of ferrous metal materials with high toughness, especially for steel and iron and their alloy, under dynamic load.
This series tester is operated semi-automatically, the pendulum of the machine can be raised or released automatically. Be applicable for continuing testing in different kinds of laboratories and other metallurgy industrial manufactories.
It is designed and developed according to standard of ISO148, ASTM E23.
General Introduction
JBW-B series impact tester is mainly used to determine the anti-impact capability of ferrous metal materials with high toughness, especially for steel and iron and their alloy, under dynamic load.
This series tester is operated semi-automatically, the pendulum of the machine can be raised or released automatically. Be applicable for continuing testing in different kinds of laboratories and other metallurgy industrial manufactories.
It is designed and developed according to standard of ISO148, ASTM E23.

According to ISO 148, standard specimen sizes are 10 mm × 10 mm × 55 mm. Subsize specimens are: 10 mm × 7.5 mm × 55 mm, 10 mm × 5 mm × 55 mm and 10 mm × 2.5 mm × 55mm.
ASTM E23 “Standard Test Methods for Notched Bar Impact Testing of Metallic Materials”
ISO 148 “Metallic materials -- Charpy pendulum impact test”
BS EN 10045 “Charpy impact test on metallic materials. Test method (V- and U-notches)”
GOST 9454 “Metals. Method for testing the impact strength at the low, room and high temperature”
Key Features
1), Pendulum rising, impact, free releasing etc. action can be controlled easily by PC mouse simple click, as well as the remote control box;
2), Safety pin guaranties the impact action, standard protection shell to avoid any accident
3), With two pendulums (big and small), digital display the energy loss, impact tenacity, rising angle, and test average value, meantime the dial scale show test result as well.
4), With two pendulums (big and small), PC software to display the energy loss, impact tenacity, rising angle, test average value etc. test data and result, also the curve display available; with calculation and report printing function. The dial scale can show test results too.
1, Windows version XP,Vista,7, 10, screen display, operation with Mouse & Keyboard;
2, Test result can export to MS Word, (2010, 2017), does not support MS Office Home Edition;
3, The software support two or more pendulums in a model, set the accurate Local Accelaration due to gravity, fall angle, pendulum length,pendulum mass or weight,to obtain a more accurate test performance;
4, Support Min,Max,Mean,Standard Deviation for batch test;
5, High precision swing period auto-detection;
6, High precision energy loss auto-detection,auto-compensation;

Main interface

Specimen Information Creating

Swing Period Detect

System parameter

Language selection
Main Technical Specification
| Model | JBW-300B (JBW-300Z) | JBW-500B (JBW-500Z) | JBW-750B (JBW-750Z) |
| Display mode | Computer | ||
| Impact energy | 300J/150J | 500J/250J | 750J |
| Distance between pendulum center to impact point | 750mm | 800mm | 750mm |
| Impact velocity | 5.2m/s | 5.4m/s | 5.24 m/s |
| Pendulum preparing angle | 150º | ||
| Span of specimen seat | 40+0.2mm | ||
| Round angle radius of Grips | R1-1.5mm | ||
| Round angle radius of striking edge | R2-2.5mm, R8±0.08mm | ||
| Angle of impact knife | 30° | ||
| Specimen size | 10 (7.5, 5, 2.5)mm*10mm*55mm | ||
| Power supply | 3 phases 4 lines, 50Hz, 380V | ||
| Weight | 600Kg | 900Kg | 2500Kg |
| *** JBW-Z series is fully automatic, with automatic sample feeding system. | |||
Main Accessories
| High Stiffness Frame | 1 set |
| Large pendulum 300J/500J | 1 set |
| Small pendulum 150J/250J | 1 set |
| Motor (on the loadframe) | 1 set |
| Rising pendulum driving device (on the loadframe) | 1 set |
| Automatic hitch pendulum device (on the loadframe) | 1 set |
| Safety pin (on the loadframe) | 1 set |
| Computer | 1 set |
| Printer | 1 set |
| Manual control box | 1 set |
| Supporting seat span adjusting device (L=40) | 1 set |
| Specimen center device ( L=40 V.U type) | 1 set |
| Safety cover | 1 set |
| Device to dismantle pendulum | 1 set |
| Terra anchor bolts (M16×300) | 1 set |
| Documents (Manual, packing list, certificate) | |
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