IMPACT pendulum impact tester for reliable impact bending tests up to 750 joules
Pendulum impact testers are used to measure the toughness and fracture energy of materials under simulated operating conditions. These devices perform the Notched bar impact test in which a standardized sample is broken in one blow by a pendulum hammer with a defined speed and energy. The energy absorbed by the material is a measure of its impact strength. The notched bar impact test with the pendulum impact tester is indispensable for material qualification and provides valuable data for the development and quality assurance of products in a wide range of industries. The method is used in the automotive industry, in container construction, in pipe production, in aerospace and in mechanical engineering. The materials tested with the pendulum impact tester include steel, structural steel, aluminum, gray cast iron, spheroidal cast iron and their alloys.
download brochure
Download the brochure directly here.
pendulum impact tester according to ISO 148
Pendulum impact testers with higher potential impact energy are required for testing modern materials with high toughness. To carry out impact bending tests, the machine body of the pendulum impact tester must be very robust and low-vibration. This is achieved primarily through the design and in particular through a high dead mass and a heavy foundation (> 20 times the hammer support weight).
When selecting a pendulum impact tester, it is important to note that according to ISO 148, it may only be used up to 80% of the possible energy. Even a single use of the full energy (100% of the potential kinetic impact energy) can lead to machine damage. Therefore, the pendulum impact tester must be recalibrated after such an overload (according to the standard).
When selecting your equipment, we recommend that you take into account both your future product planning and the constant development of materials. Until the 1990s, pendulum impact testers were generally designed for an impact energy of 150 joules, with the option of increasing this to 300 joules using additional weights. Today, devices with at least 450 joules are the main focus for testing steels, stainless steels and structural steels. A division into different measuring ranges (additional weights on the hammer head) is generally no longer necessary. The standards also allow testing of low toughnesses, e.g. 20 joules with a pendulum hammer of e.g. 450 joules, provided that the indirect calibration with reference samples is within the tolerance.
| GALDABINI MPACT | usable energy 80% | typical materials | companies / purposes |
| 150 Joule | 120 Joule | aluminum, gray cast iron, ductile iron | foundries, aluminum foundries, aluminum plants |
| 300 Joule | 240 Joule | steel, cast steel, sheet metal | steel and sheet metal industry, didactics at universities / vocational schools |
| 450 Joule | 360 Joule | tough steels, Stainless steel |
standard equipment |
| 600 Joule | 480 Joule | Stainless steel | stainless steel producers, stainless steel processing |
| 750 Joule | 600 Joule | Stainless steel | stainless steel producers, stainless steel processing |
Pendulum impact testers from GALDABINI
The IMPACT pendulum impact testers from GALDABINI are characterized by their design with C-pendulum hammer. They meet the calibration requirements according to Thank you and work reliably and trouble-free for years.
Pendulum impact tester IMPACT: Robust technology, precise electronics
The functional principle of a pendulum impact tester is relatively simple: A pendulum hammer strikes an impact test specimen from a defined drop height. During impact, different amounts of energy are used to break or bend (with tough materials). Depending on the energy used, the pendulum hammer continues to oscillate on the opposite side of the abutment at different heights (angle of rise). The maximum oscillation height is determined using a rotary encoder and electronics.
The electronic recording and storage of test results has become increasingly important in industry. The results can be read on the touchscreen immediately after the test or read out via an RS232 interface and automatically archived using the IMPACT test software.
Note: If you have an older pendulum impact tester, you can upgrade it with an angle encoder and counting electronics. This turns the software into an active calculation tool that accurately determines the energy consumed. This modernization increases the accuracy of your results, simplifies the reading and presentation of the results (including the pitch angle), and is quick to install. In addition, it ensures the compatibility of your system with the current DAkkS calibration and can be installed on any Windows PC.
Quality features of the IMPACT pendulum impact tester
GALDABINI pendulum impact testers are characterized by outstanding quality features that set them apart from the competition and make them particularly suitable for meeting the strict calibration and safety requirements. The combination of innovative technology and robust construction guarantees precision and reliability in material testing. The outstanding features include
- Immediately meets all tolerances according to ISO 148, ASTM, etc.
- Above-average rigidity of the machine body and vibration-optimized hammer prevent vibrations that absorb excessive amounts of energy (resulting in excessively high results).
- All-round protective housing made of transparent safety polycarbonate
- The locking of the access doors prevents access during all pendulum movements.
- Motorized pendulum hammer stroke in only 2 – 9 seconds (!)
- Suitable for modern materials with high strength
- Worldwide unique selling point: When opened, a solid tube swings into the pendulum path (redundant protection of the operator)
Pendulum impact tester IMPACT: Equipment
Although wearing parts such as the hammer fin and abutment inserts are made of high-quality powder metallurgical steel, a certain amount of wear is unavoidable over time. When testing highly tough materials that are pulled along the abutments rather than broken, high levels of wear are to be expected. It is therefore recommended that you order a replacement impact fin and replacement abutment inserts when you first purchase a pendulum impact tester. This recommendation applies in particular to devices with an impact energy > 450 joules. In models with an impact energy <300 joules, wear is generally lower due to the lower impact strength of the materials tested, so that long-term use is possible without replacing wearing parts.
Optional equipment of GALDABINI pendulum impact testers
* Cryostat for cooling of impact bending specimens to -100 ° C
* Insertion forceps for cooled samples
* Funnel-shaped sample slide for easier sample finding
* Conveyor belt for transporting the samples – important for lateral expansion measurements (who wants to open the doors 300 times a day)
* Display + archiving software LabTest-Impact
* Pendulum impact tester instrumentation with:
– Applied hammer fin
– High-performance electronics and transient recorders
– special evaluation software
* efficient notch clearing machine
* Calibration according to DAkkS and or ASTM / NIST
* Reference samples for DAkkS and/or ASTM NIST calibration
Pendulum impact testers from SCHÜTZ+LICHT
SCHÜTZ+LICHT is an accredited provider of DAkkS calibrations and, in addition to sales, also offers services such as standard-compliant DAkkS calibrations or repair services in the event of a defect. As a long-standing partner of GALDABINI, we only offer high-quality testing machines and pendulum impact testers.
pendulum impact tester IMPACT notched bar impact test
FAQ
Which materials can be tested with a pendulum impact tester?
Typical materials tested with the pendulum impact tester are steel, cast steel, tough steel, stainless steel, grey cast iron, ductile iron and aluminium. Depending on the material to be tested, the energy of the pendulum impact tester must be set accordingly. A maximum of 80% of the energy may be used.
Why can a pendulum impact tester only be used to a maximum of 80% of its capacity?
The reduction of the usable energy is required according to ISO148, since even a single use of the full energy can lead to machine damage. According to the standards, the pendulum impact tester must be recalibrated after excessive stress.
What do I have to pay attention to when choosing the right pendulum impact tester?
When selecting a pendulum impact tester, the following requirements must be taken into account:
- Stiff, vibration-optimized frame
- Vibration-optimized pendulum hammer
- Fast, motorized pendulum hammer stroke (<10 seconds)
- Automatic control including door monitoring
- protective housing with locking mechanism
- centering device
How many joules is the IMPACT pendulum impact tester designed for?
The GALDABINI pendulum impact tester series includes five different types with impact energies of 150 / 300 / 450 / 600 / 750, which are selected according to the metals to be tested, from low for grey cast iron to high-toughness nickel-chromium alloys. It should be noted that the maximum capacity of the pendulum impact tester can only be used to 80%.
