Cost-effective compression testing machine

The compression testing device is a sturdy, autonomous machine, operating independently on other peripheral systems such as a PC. It is very easy to use, and aimed mainly towards operators with little to no experience when it comes to specimen testing. As a result, the errors that affect the results are nullified and the user’s operator is safeguarded.

Each machine consists of the following:

• 01Uniform, heavy-duty melded loading frame.
• 02Hydraulik power pack.
• 03Hydraulic cylinder equipped with safety limit switch.
• 04Upper platen Ø 300 mm diameter with self-adjusting ball seating assembly.
• 05Lower platen Ø 300 mm diameter with engraved concentric circles for easy specimen alignment.
• 06Distance pieces with a diameter of Ø 205x25 mm, Ø 205x50 mm and Ø 205x80 mm.
• 07Front and rear protective safety doors. Front door has a safety limit switch.
• 08Electronic control unit with touch screen display, force adjusting potentiometer, optional thermal printer.

• 0120 Lt oil tank with level and temperature indication.
• 02Two-stage oil pump inside the tank consisting of a) Low pressure gear pump b) High pressure radial piston pump. Thanks to the two-stroke pump, the time until the upper plate reaches the specimen is reduced, and so does the total duration of each test. The high-pressure pump’s revolutions are adjusted by an inverter accordingly to the desired rate of loading.
• 03The maximum operating pressure is 410 bar, which is the activation limit of the safety valve.
• 04The motor power of the pump is 380V / 50hz / 0.75Kw.

All operations are performed via a Touch screen display, located at the Electronic Unit and Hydraulic Power Pack’s front panel.

• 017’’ touch screen display, 800 x 480 pixel, with 65.535 available colors. Using the integrated PID software the loading speed is regulated automatically, based on user parameters.
• 02The compression test results can be printed using the optional thermal printer. Uses printing paper with a width of 58mm and a maximum diameter of Ø 50 mm.
• 03Option to export all compression testing results from the system’s database to a USB stick for transportation and import to a PC.
• 04The high-pressure pump’s revolutions are adjusted by an inverter accordingly to the desired pace rate.
• 05The system’s power requirements are 220 V, 50-60 Hz, 1 Ph.

The compression testing machines are very simple to use and allow even unexperienced operators to perform the tests very easily and without mistakes.

As soon as the specimen is aligned with the help of the concentric circles, engraved at the lower platen, the only required actions are:

• 01Selection of specimen type and rate of loading via the touch screen display (if these parameters have already been set once, this step can be omitted).
• 02Pressing the “START” button on the touch screen display. By doing so the machine automatically starts a rapid approach until the specimen touches the upper plate and then begins to load the specimen at the selected pace rate (charging speed) and stops when the specimen breaks.
• 03During each crushing test, the machine automatically adjusts the pace rate, trying to maintain it within the margins (set by the standards). The screen displays the loading chart in real-time along with two indicative curves which are automatically generated by the system signifying the allowed pace rate limits. This way it is clear to the operator if the test has been completed according to the applicable standards. The maximum load in kN and MPa are stored in the controller's memory and are accessible anytime. When the optional thermal printer is installed, the machine automatically prints the compression test results.
• 04Machine calibration is also made easier than ever before due to the force adjusting potentiometer and the detailed instructions found in the User’s Manual.

• 01Each press is delivered pre-calibrated and ready for the official calibration, as defined by the regulation which states it must be done at the final installation place.
• 02A second frame can be installed in the same unit in order to perform different kinds of tests.
• 03No special maintenance is required apart from preemptive checks and a periodic hydraulic oil replacement.
• 04Every single compression testing machine is delivered pre-calibrated, ready to operate at the final destination site.
• 05Detailed User’s operation and maintenance Manual.