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Determines the Energy Required to Break a Sample

Test methods are Izod, Charpy and Tensile Impact. The choice of method relates to the way the specimen is mounted and how it is impacted.

The various methods measure the energy needed to break a specimen, with a known cross-section, then calculate resilience under the given conditions. The potential energy of the hammer is known and varies, depending on it’s shape, weight and release angle. The absorbed energy to break the specimen is then determined after measuring the ascent angle of the hammer after impact.

Charpy method – Specimen positioned horizontally and broken with x1 oscillation of the hammer. The impact line is centred between the two specimen supports.

Izod method – Specimen blocked at one end in the vertical position and broken with x1 oscillation of the hammer. The impact line is at a fixed distance from the blocking point of the specimen.

Tensile impact method – Dumb-bell shaped specimen inserted in x2 blocking brackets and broken with only x1 oscillation of the hammer. The specimen is stressed along its longitudinal axis.

Electronic crosswise levelling system Centering system for Charpy specimens
Safety double “PULL” type hammer release and side safety shield Hammer calibration control
energy and the resilience values displayed after the impact Auto-test functions & troubleshooting coding
Soft-touch keyboard & LCD display Serial and parallel outputs
4-language display Braking system to slow down the descent of the hammer after impact
SI or BU measuring units Store & print up to 50 tests
Automatic display of the ascent angle Automatic display of potential energy & speed of impact
230 V, single phase, 50/60 Hz; 0.1 kVA (WxDxH): mm 510x275x680 (without shields) – mm 900x275x870 (with shields)
125 kg (15J unit) without accessories

Hammers – a wide wide range of hammers is available, to meet the various standards. Correct positioning is guaranteed by a top mounted pin. Calibration is guaranteed by their design and manufacture, so no mounting adapters are necessary. Standard hammers for any test method cover a range of impact energy up to 25 Joules. Hammer calibration reports can be obtained interfacing the instrument with a printer.

The IMPats15 Pendulum design is based on a casting mainframe to work up to 15Joule energy. It can be extended to 25Joule by adding an optional additional base mass.

Shoulders and spacers for Charpy impact tests are positioned in their seats, with no possibility of assemby, or dimensional errors. The seats are designed in strict accordance with the standards and are part of the main structure to guarantee rigidity during the impact. The centring tool guarantees the exact positioning of the Charpy specimen.

Izod tests can be performed with standard or fast camping vice. The latter is equipped with a notch centring system, guaranteeing a constant pressure on the specimen.

Izod Charpy Pendulum

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Rycobel is the European hub for several internationally respected manufacturers of physical testing equipment, from pulp evaluation, to strength, tear and compression testing of finshed products. Rycobel also offers its own RYCOLAB labelled series of  instruments.

Their team of manufacturer trained service engineers provide service, calibration and repairs for the complete range of instruments, through return to base, or annual on site service tours, organised by Tendring Physical Testing.