Notching Machine
Motorised device for producing precise Type A notches on plastic specimens for Charpy and Izod impact testing. Micrometer-adjustable notch depth with potentiometer speed control.
Consistent notches for Charpy and Izod tests
Impact results depend heavily on the notch: a slightly deeper or blunter notch changes the measured energy. The notching machine cuts a precise Type A notch into plastic impact specimens using a 4 kW motor-driven cutter, with notch depth set by micrometer and cutter speed adjusted by potentiometer. It handles specimens from 4 mm thickness and is used together with Charpy and Izod pendulum testers to ISO 179, ISO 180 and ASTM D256.
- 4 kW motor
- Type A blade
- Micrometer-adjustable notch depth
- Potentiometer speed control
- Min. 4 mm sample thickness
- Stock available
Standards
- ISO 179 — Plastics — Charpy impact properties
- ISO 180 — Plastics — Izod impact properties
- ASTM D 256 — Izod impact resistance of plastics
Frequently Asked Questions
Why does the notch matter so much?
The notch concentrates stress where the specimen breaks; small differences in its depth or radius change the impact energy measured, so notches must be identical.
Which notch type does it cut?
A standard Type A notch, as used in ISO 179, ISO 180 and ASTM D256 impact tests.
How is the depth set?
With a micrometer adjustment; the cutter speed is set with a potentiometer.
What is the minimum specimen thickness?
4 mm.
| Motor | 4 kW |
|---|---|
| Min. Notched Sample Thickness | 4 mm |
| Blade Type | Type A |
| Notch Depth | Micrometer-adjustable |
| Cutter Speed | Potentiometer-adjustable |