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Automatic Cement Compression and Flexure Testing Machines

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The Automatic range of single testing chamber and double testing chamber compression and flexure testing machines have been designed for reliable and consistent testing of mortar samples. These compression and flexure testers are the results of continuous applications and research studies to upgrade the machines with the latest technologies and conform to the current standards EN 196-1, 459-2, 1015-11, 13454- 2; ASTM C 109, C348, C349 and BS 3892-1, 4551-1 in terms of its technical properties taking into account client requirements by using suitable accessories. These machines also meet the requirements of CE norms for health and safety of the operator.

Compression and flexure jigs, distance pieces, and also removable transparent front-rear safety doors (factory fitted) should be ordered separately.

The Automatic cement compression and flexure testing machines allow even less experienced operators to perform the tests. Once the machine has been switched on and the specimen is positioned and centred by the help of centring apparatus. The only required operations are:

  • Setting test parameters, including pace rate (only required when the specimen type is changed)
  • Choosing the compression or flexure frame by using the changeover valve
  • Pressing the START button on the control unit
  • The machine automatically starts the rapid approach; switches the test speed after 1% of the load capacity of the machine and stops once the specimen failure
  • Automatically saves the test parameters and test results
  • The Automatic cement compression and flexure testing machines consist of very rigid two column single or double chamber frames, automatic hydraulic power pack with data acquisition and control system BC 100

Power Pack

TC-4830 Automatic Hydraulic Power Pack, dual stage, controlled by BC 100 is designed to supply the required oil to the load frames for loading. Very silent power pack can load the specimen between 50 N/sec to 2.4 kN/sec with an accuracy of ±5%. A Rapid approach pump is supplied as standard. Safety valve (maximum pressure valve) is used to avoid machine overloading.

Motor

The motor which drives the dual pump is an AC motor, 380 V, 50-60 Hz, 3 phase, 1 hp and 0.75 kW and it is controlled by Omron J7 motor inverter. The variation in the oil flow is executed with the variation of the rotation speed of the motor.

Distribution Block

A distribution block is used to control the oil flow direction supplied by the dual stage pump; the following parts are fitted to the distribution block:

a) Solenoid valve

b) Safety valve (maximum pressure valve)

c) Transducer

d) Low pressure gear pump

e) High pressure radial piston pump

Dual Stage Pump

The dual stage pump comprises of:

  • Low pressure gear pump
  • High pressure radial piston pump

On the dual stage pump, a high delivery, low pressure gear pump is used for rapid approach, while a low delivery, high pressure radial piston pump is used for test execution. The Rapid approach facility shortens the time interval from piston start until the upper platen touches to the specimen. This excellent feature helps to save a lot of time when a large number of specimens are going to be tested.

Oil Tank

The tank includes enough oil to fill the mechanism which pushes the ram during the test. The level and oil temperature can be seen on the indicator fitted to the tank. It has 20 L capacity. Hydraulic motor oil, number 46, must be used.

Dimensions W x D x H 360 x 380 x 900 mm
Weight (approx.) 80 Kg
Power 750 W

Control Unit BC 100

BC100 TFT unit is designed to control the machine and processing of data from load-cells and pressure transducers which are fitted to the machine. All the operations of BC100 are controlled from the front panel consisting of a 800×480 pixel 65535 colour resistive touch screen display and function keys 2 analogue channels are provided for load-cells or pressure transducers.

BC100 TFT unit has easy to use menu options. It displays all menu option listings simultaneously, allowing the operator to access the required option in a seamless manner to activate the option or enter a numeric value to set the test parameters. The BC100 digital graphic display is able to draw real-time “Load vs. Time”, or “Stress vs. Time” graphics.

BC100 TFT unit offers many addition unique features. You can save more than 10000 test results in its internal memory. BC100 unit has support for various off-the-shelf USB printers, supporting both inkjet and laser printers. Thanks to its built-in internet protocol suite, every aspect of BC100 device can be controlled remotely from anywhere around the world.

Main Features

  • Pace rate control from 50 N/sec to 2,4 kN/sec depending on piston size
  • Can control 2 frames
  • Can make test with load control
  • Real time display of test graph
  • CPU card with 32-bit ARM RISC architecture
  • Permanent storage capacity up to 10000 test results
  • 2 analogue channels for different frame load cells
  • Programmable digital gain adjustment for load-cell
  • 1 / 256000 points resolution per channel
  • 10 data per second sample rate for each channel
  • Ethernet connecting for computer interface
  • 800×480 resolution 65535 colour TFT-LCD industrial touchscreen
  • 4 main function keys
  • Multi-language support
  • 3 different unit system selection; kN, Ton and lb
  • Real-time clock and date
  • Test result visualization and memory management interface
  • Remote connection through ethernet
  • USB flash disc for importing test results and for firmware
  • USB printer support for inkjet and laser printers (ask for compatible models)
  • Camera support for real-time video recording during test (ask for compatible models)
  • Free of charge PC software for the test control and advanced report generation

Specifications

Technical specifications are subject to change without notice.

Model TCM-6331 TCM-6431
Test Type Compression Flexure Compression
Capacity kN 250 15/td>

250
Class 1 Measuring Range 2.5 to 250 kN 0.5 to 15 kN 2.5 to 250 kN
The roughness value for texture of loading and auxiliary platens ≤3.2 μm ≤3.2 μm ≤3.2 μm
Lower Platen Dimensions 165 mm 165 mm 165 mm
Upper Platen Dimensions 165 mm 165 mm 165 mm
Maximum Vertical Clearance Between Platens 263 mm 263 mm 263 mm
Piston Diameter 160 mm 80 mm 160 mm
Maximum Piston Movement 50 mm 50 mm 50 mm
Horizontal Clearance 300 mm 200 mm 300 mm
Power 750 W 750 W
Oil Capacity 20 L 20 L
Maximum Working Pressure 125 bar 30 L 125 bar
Rapid Approach Rate 50 mm/min 80 mm/min 50 mm/min
Dimensions (WxLxH) 830x500x1650 mm 1050x500x1650
Weight Kg 265 410

Maximum horizontal clearance for placing sample is limited with the border of the platens. Sample must be placed such that its ends will not overlap the ends of platens and it must be centered perfectly. The suitable vertical clearance for specimen can be adjusted with distance pieces.

Safety Features

  • Maximum pressure valves to avoid machine overloading
  • Piston travel limit switch
  • Emergency stop button
  • Software controlled maximum load value