Pendulum impact testing machine(750J)

2.     Front and rear columns are symmetrical. Pendulum arm is designed of cantilever beam support, with simple structure and high machined precision

3.     Apply high precision bearing with small friction. Absorbing energy without loading is less than 0.3%

4.     Double reduction gear system replaces old style drive system with high efficiency and avoiding transmission failure

5.     Round pendulum head design reduces windage losses to the most

6.     High rigid pendulum arm prevents axial and transverse vibrations

7.     Exchangeable pendulum is simple to change to satisfy impact energy of **0J, **0J, **0J, **0J, **0J

8.     Electromagnetic release of pendulum hammer

9.     Electromagnetic clutch for locking the pendulum and lifting to it to its initial position. A damper is equipped to prevent strong bump when clutching

*0.   Full-closed enclosure with high safety to prevent broken sample from splitting. Protective screening has interlock door. When the door opens, most operations can’t work to avoid any wrong operation.

*1.   Apply SIEMENS industrial PLC to control pendulum, and high precision Japanese made NEMICON rotary encoder to measure striker real time position. The whole system is stable, reliable and accurate

*2.   A big touch screen monitor may real-time displays striker angle, impact energy, toughness, and other parameters. User can specimen data and other information such as company information into this monitor. When connected to a printer, user information and test results will be printed

*3.   Optional computer with software control is available to realize semiautomatic operation. Operator only need charge specimens. Others can be controlled by software

*4.   Optional specimen feeding system is available. Combined with computer and software, fully automatic operation can be realized

*5.   Optional cooling system is available to satisfy cold specimen test down to ***0℃

Specimen collection and filtering device

 

1.     Motorized device is used for collecting broken specimens after impact, instead of manual cleaning, which fully prevents striker from getting stuck.

 

2.     Unique specimen filtering function. Automatically judge and transport qualified and unqualified specimens to different collecting box.

 

Specimen auto feeding system with cooling chamber

Functions:

1.    Feeding specimens into the cooling chamber

Specimen rack can accommodate *0 pieces specimen, U type or V type. Pneumatic cylinder B will push the specimen into the entrance of cooling chamber; pneumatic cylinder A will push the specimen inside the cooling chamber

2.    Cooling the specimen inside the chamber (must connect to cooling system)

The chamber will cool down the specimen to the preset temperature, then maintain.

The chamber is divided with upper and lower parts. The middle is space for specimen. Upper and lower parts are made of aluminum plate with good thermo conduction. There are snake-like grooves on the aluminum, that cooling medium flows through the grooves to absorb heat to realize cooling. The temperature sensor is located at the specimen outlet of cooling chamber, ensuring the specimen temperature is constant with the control temperature.

3.    Feeding specimens to anvil for striking

After reaching preset cooling time, pneumatic cylinder C will push out the specimen from the chamber to anvil for striking. Specimen centering on the anvil is automatic. After striking, the pendulum will automatically rise to the initial height for next impact and broken specimen will be carried out by the collection and filtering device. One cycle impact is finished then.

The duration between specimens pushed out from the chamber to finish striking, is around **5 seconds.

One specimen impact cycle takes around *0 seconds, which is mostly suitable for steel companies and test labs.

Remark:specimen is positioned on the anvil by the specimen end surface, to minimize effects on the notch temperature. But surface finish must be good. Specimen width should be ≤*0.1mm, the distance between notch to one end surface should be *7.5±0.1mm, free of burr.
Cooling system:

Model	PIT**2	PIT**2
Type	Type D
Maximum energy	**0J	**0J
Optional pendulum	**0J, **0J	**0J, **0J, **0J
Angle of striking	**0°±1°
Angle measurement resolution	0.**5°
Distance from the axis of support to the center of percussion	**0mm
Velocity of striking	5.*4m/s
Support span	*0mm
Radius of curvature of supports	1mm
Angle of taper of supports	*1°±1°
Radius of striking edge	2mm
Angle of striking tip	*0°
Thickness of striker	*6mm
Specimen dimension	*5mm×*0mm×*0mm *5mm×*0mm×7.5mm *5mm×*0mm×5mm
Weight	**0kg
Power requirements	*-phase, *-line, AC **0V±*0% *0Hz  **0W *0A