Class H – Servo-Motor Dual Column Charpy Impact Tester – 300J, 450J, 600J or 750J
Metal Testing Equipment
Standards
ISO 148, EN10045, ASTM E23, ASTM E1820, ASTM E2298
Metals Impact Tester - Class H 750J - Dual Column Charpy Impact Tester
Impact Energy
300J, 450J, 600J or 750J
Description
The Class H Metals Impact Tester is a dual column impact testing system designed for Charpy Impact testing according to ASTM E23, ASTM E1820, ASTM E2298, ISO 148 and EN10045 industry standards. Class H is designed for high volume and especially hard materials. This unit has the highest accuracy and can be equipped with a force transducer for precise data sampling and complete measurement system. The Class H has a peak capacity of 750J with optional pendulums for 300J, 450J, 600J and 750J. Class Hcomes standard as a fully enclosed system and allows for impact testing at any pre-set angle.This system comes standard with an analog and digital readout for higher accuracy along with the option to add the ability to connectthe system to a computer for use with our analysis software. Class H-4 is an instrumented type meaning there is a force transducer inside the strikerwhich enables the determination of characteristic force, energy and displacement parameters such as pre-maximum force energy (Wm), the post maximum force energy, the general yield force (Fgy), the force at brittle fracture initiation (Fbf) and the arrest force (Fa). Lear more about Pendulum Impact Testers and Testing.
Main Features
- The heavy cast iron base is mechanically designed to avoid any vibrations having an effect on impact testing results.
- Dual column impact frame
- Standard touch screen display and optional connectivity to a PC for software analysis
- Motor-driven raising of the hammer with auto-return after completion of a test
- Electromagnet locks the pendulum securely
- Fully enclosed testing area for the highest safety while undergoing impact testing
- The pendulum height and weight are precisely designed to ensure high accuracy
- Simple and easy design to exchange the striking knife to meet ISO or ASTM standards
- Designed with a high precision bearing for the most accurate impact results
- Quality PLC controller for precision pendulum testing
- Optional computer with software control is available for a semi-automatic operation. The operator must only change the specimens while the rest is controlled by the PC.
- Optional instrumented version with force transducer within the pendulum for detailed software analysis - enables the user to determine the highest amount of data on their specimens
Technical Specifications
| NG-Impact Class H | |
|---|---|
| Model | NG752 Class H and Class G |
| Maximum Impact Energy | 750J |
| Optional Pendulum | 300J, 450J, 600J and 750J |
| Angle Resolution | 0.025° |
| Angle of Striking | 30°-150° ±1° - Adjustable |
| Distance from Axis of Support to Center of Percussion | 29.5" 750 mm |
| Velocity of Striker | 5.24 m/s |
| Support Span | 1.58" 40 mm |
| Radius of Curvature of Supports | 1 mm |
| Angle of Taper of Supports | 11° ± 1° |
| Radius of Striking Edge | 2 mm (R2) and 8 mm (R8) |
| Angle of Striking Tip | 30° |
| Thickness of Striking | 0.63" 16 mm |
| Force Transducer | 30kN, 50kN |
| A/D Sampling Resolution | 16bits |
| Maximum Sampling Frequency | 1.25MHz |
| Frequency Band Width | 500kHz |
| Specimen Dimensions | 2.16x0.4x0.4", 2.16x0.4x0.3", 2.16x0.4x0.2" 55x10x10 mm, 55x10x7.5 mm, 55x10x5mm |
| Overall Dimensions | 7.72 x 2.7 x 7.88" 196 x 68 x 200 cm |
| Weight | 1765lbs 800 kg |
| Power | AC220V±10%, 50Hz, 100W |
Configurations
| Name | Description | Model | ||
|---|---|---|---|---|
| Machine Frame | NG752 Class H | NG752 H-2 | NG752 H-3 | NG752 H-4 |
| Framework | Frame | X | X | X |
| Pendulum Lock/Release System | X | X | X | |
| Driving System | X | X | X | |
| Angle Measurement | X | X | X | |
| PLC | X | X | X | |
| Dial Gauge Display | X | X | X | |
| Touch Screen | X | X | X | |
| Full Protection Shield | X | X | X | |
| Servo Motor | X | X | X | |
| Software | TestPilot | X | X | |
| Accessories | Span Block Specimen Centering Block Centering Tongs Standard Tools Anchor Bolts Wedge Block |
X | X | X |
| PC Connection | RS232 | X | X | |
| Instrumented Impact System | Force Transducer in Pendulum for quick plotting of the force-time graph Access to more testing parameters on TestPilot software |
X | ||
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