Class H – Servo-Motor Dual Column Charpy Impact Tester – 300J, 450J, 600J or 750J

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