Pendulum Impact Model IT 406

​Tinius Olsen’s popular model IT406 is a pendulum impact tester that can be easily changed from a Charpy configuration to an Izod configuration. These testers are designed primarily for determining the impact resistance of metals and are designed to fully comply with the specifications outlined in ASTM E23, BS EN ISO 148-3 and BS EN ISO 148-2.
The Model IT406 provides maximum testing versatility. Easy insertion of interchangeable strikers in the pendulum head quickly adapts the machine for either Charpy or Izod testing. Two studs on the rear of the pendulum head allow optional tooling to be attached for performing tension impact tests.
A latch with a safety lock holds the pendulum in its raised position and assures a vibration-free release when activated. Once released, the pendulum quickly reaches the impact velocity of 5.47 m/s (17.0 ft/s) and has a maximum available energy of 406 J (300 ft•lbf) to impact the specimen
The superior design and construction of the Model IT406 ensures maximum testing accuracy and repeatability. When the machine is properly installed and leveled, the total frictional and windage losses during the pendulum swing are guaranteed not to exceed 0.5% of the energy range.
Tinius Olsen offers a number of options to make the operation of the impact tester easier—from a simple electric brake to slow the swinging pendulum to a stop, to an automatic motorized return, eliminating the need for any operator involvement other than releasing the pendulum. The digital display is included in this last option and provides the trigger to energize the motor, which catches the swinging pendulum at the optimal position and returns it to the latched starting point.



Precision, friction compensated, robust test frames.

Digital display option allows test set-up and result display.

Safety features ensure repetitive secure testing

Digital display option allows simple connection to PC for full test SPC analysis.

Pendulum capacity






Drop height






Pendulum weight






Impact velocitym/s5.5

Precision, friction compensated, robust test frames.
Digital display option allows test set-up and result display.
Digital display option allows simple connection to PC for full test SPC analysis.
Safety features ensure repetitive secure testing
Dimensions* (WxDxH)2108 x 508 x 1854 mm
83 x 20 x 73 in
Weight736 kg
1620 lb

In forging industry, the Charpy impact test can be used to determine the malleability and ductility of a material that is being forged.

Charpy configuration
The specimen rests horizontally on the Charpy supports. Centering tongs can be seen in front .
Replaceable shrouds prevent the specimen from rebounding against the pendulum. The striker is bolted to the pendulum and available in 8mm (ASTM E23) or 2mm (BS, DIN, JIS, EN, and ISO) nose radius sizes. An optional set of selfcentering tongs is useful for accurately centering specimens, especially those subjected to temperature extremes before the test

Izod configuration
The specimen is clamped vertically at one end, using the front screw/vise. Left: The striker.
The Izod striker is easily secured in the pendulum while the specimen is clamped in the close clearance slots in the vise. This ensures the specimen has the correct vertical alignment while the setting gage ensures the specimen is at correct height. A wrench is provided for tightening and loosening the specimen in the vise.

Tension impact
The tension impact specimen is threaded into the specimen holder in the pendulum head. Tension is instantaneously applied to the specimen when the holding bar strikes the anvils. This method of support provides uniform distribution of the impact energy over the cross-section of the test specimen. This configuration is not available on the Model IT800.

Horizon Software
Computer assisted data acquisition and machine control system which can be supplied with most Tinius Olsen testing equipment. The Horizon software package allows data to be collected, analyzed, graphed (where appropriate), and stored. If the testing machine allows, it can also provide control over testing operations.
Horizon has a comprehensive selection of pre-defined testing programs which includes powerful analysis of testing data, complex control, and sophisticated reporting. These programs can be modified and further enhanced to fit a customer’s particular requirements. The testing data collected by these programs may be exported to an outside source then later transferred to other data analysis systems. The Horizon databases may also be configured to be shared across several computers on a company’s network thereby allowing the testing programs and testing data to be utilized by multiple systems.
Using Horizon will make easy work of your materials testing, whether it’s designed for the demanding rigors of R&D or the charting and analysis functions of QC testing.

Key Features Overview

Advanced Machine Segment Control
Customizable Report Layout
Data Archiving and Backup
Data Exporting (Results/Limits/Statistics/Points)
Data Importing (Result Entries/Limits)
Data Stored with SQL Server Express
Formula Generation
Library of Pre-Defined Testing Programs
Method/Output Editor
Multiple Graphs/Reports for Output
Multiple Machine Controlled by one Horizon
Multiple Users
Networking Databases
Report Consolidation
RS232 Device Communication
Security Lockout Capability
Touchscreen Capability
Video Extensometer Capability

Test & Recall
The testing area allows for the viewing of live data from the machine while the test is being performed. Multiple tabs showcase the recalling of previous testing data as well as each testing machine connected to the software. Once a testing tab is created, it never has to be destroyed. When a new testing program needs to be run, simply change the Tab Options and load a new program. Each testing tab can be configured to display custom results, multiple graphs, multiple plots on a single graph, and live data (including custom formulas). Each tab may be customized to suite a user’s preferences.

Method/Output Editor
The testing program transferred from the Library may be customized for the customer in the Method and Output Editors. Create custom batch/sample identifiers for reporting and recalling purposes. Enhance the control of the machine with advanced machine segments. Automatically accept tests then print or email the report based on pre-defined limits. Customize multiple reports for various recipients. Import specimen data (such as dimensions or limits) from an outside file based on an identifier. Export results, limits, statistics, and/or curve points to an external file.

Custom Results
Methods transferred from the Library contain a number of results which have been standardized. In the Result Editor, however, custom result can be created. Such results can might be defined as entry type, a single point along a curve, a calculation between two points along a curve, a live source, or even a calculated formula. Depending upon how the result is created, it can be added to a testing panel to be viewed during the test or added to a report.

Library of Methods
A searchable database containing a variety of pre-defined testing routines. These methods are based on Standards from ASTM, ISO, EN, BS, DIN and many more. These routines include testing in tension, compression, flexure, torsion, melt index, heat distortion, hardness, impact, and more. Each method may be transferred into the user’s main database and customized with their own identifiers, units, report layouts, etc. With each new version update of Horizon, more and more routines are added to the Library.

Help Desk
Access to the tutorials which guide a user is various activities in the software.Displays details of the Software Key including items purchased. System Information displays valuable data regarding the software as well as the computer which it is installed upon. This guides the Tinius Olsen support staff when there are questions regarding system functionality. Please also note this page offers quick access to the Horizon QS program which will allow our Tinius Olsen support staff to take control of the computer when assistance is requested.

Additional information


Tinius Olsen





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