Automatic Concrete Compression Testing Machine, Welded Wall, Touch Screen

Application :

• The Automatic Compression Testing Machines allow inexperienced operators to perform the tests. Once the machine has been switched on and the specimen is positioned and centered by the help of centering apparatus, the only required operations are;
  Setting test parameters, including pace rate (only required when the specimen type is changed).
• Pressing the START button on the control unit.
  The machine automatically starts the rapid approach, when the specimen touches the upper platen the rapid approach is ended and starts loading at the pace rate that selected by user and stops once the specimen fails.
  Automatically saves the test parameters and test results.

Standard Supply :

• The Automatic Concrete Compression Testing Machines consist of;
• Load Frame,
• Automatic Hydraulic Power Pack,
• Digital data acquisition & control system,
• Distance Pieces, 30 mm, 50 mm and 80 mm,
• Upper Platen (with ball seating assembly),
• Lower Platen,
• Loading Cylinder Assembly & Limit Switch for safety,
• Front and Rear Protective Doors for safety,
• Software and Ethernet Cable.

Concrete Compression Load Frame :

• Capacities of 1500 kN, 2000 kN and 3000 kN Load Frames are most popular and available models for welded type frames.
• The load frame provides the stability needed for accurate and repeatable test results over the years of operation.
• The frames are supplied with factory calibration certificate for force transfer stability and the self-alignment of the upper loading platen conforming to EN 12390-4.

Upper Platens / Lower Platens :

• The platens enable the testing of a wide variety of cylinder, cube blocks or similar samples.
• Manufactured from high quality steel, which is then hardened, smoothed and finished.
• The roughness value for the surface texture of the auxiliary platens is – 3.2 °m.
• °165 mm and °300 mm Upper Platen (with ball seating assembly) and Lower Platen have centering rings on the lower platens for proper centering of 100 mm and 150 mm cube, 100 mm and 150 mm cylinder samples.

Block Platens with Sliding Rail Assembly :

• Block Platens with Sliding Rail Assembly are installed on the compression testing machines for testing concrete blocks and other structural materials. The Sliding Rail Assembly allows the platens to be easily installed without removing the existing °300 mm compression platens. This assembly should be factory installed.
• It should be noted that after installing, the vertical clearance between the platens decreases by 50 mm.
• Block Platens Lifting Assembly is used for easy removal of the lower platen of Block Platens and easy replacement of the distance pieces between the piston and the lower platen.

Distance Pieces :

• Distance pieces are used to reduce the amount of vertical clearance between the upper platen and the lower platen.

Loading Cylinder Assembly & Limit Switch :

• All frames have a single acting up stroking ram. The diameter of piston changes with regard to the capacity.
• The maximum ram stroke is 50 mm, a limit switch is fitted to prevent over travel of the ram which cuts the power to the pump for safety.
• At the end of the test process to start a new test the piston returns to default position.
• The pressure transducer is used for load measurements.
• There is a low friction coaxial PTFE seal between the cylinder and the piston fitted to the cylinder.

Hydraulic Power Pack :

• Automatic Hydraulic Power Pack, dual stage, controlled by is designed to supply the required oil to the load frames for loading.
• Controller unit has a simple and compact configuration. The Hydraulic Power Pack, Control and Read out Units are positioned on the right-hand side of the load frame for easier accessibility, increased productivity and for safer operations.
• Very silent power pack can load the specimen between 1 kN/sec. to 20 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.
• Maximum working pressure of the system is 400 bar.

Dual Stage Pump :

• The dual stage pump is formed by two groups;
• 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.

Motor :

• The motor which drives the dual pumps is an AC motor and it is controlled by 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; Solenoid valve, Safety valve (max. pressure valve), Transducer, Low pressure gear pump and High pressure radial piston pump.

High Precision Pressure Transducer (Optional) :

• The range of Automatic Machines can be upgraded with option High Precision Pressure Transducer special calibration Class 1 starting from 1% of the full range.
• This unique performance enables the machines to be used for;
• Early age compression strength tests
• Flexural and splitting tests by using proper accessories
• Mortar (Cement) compression tests by using proper accessories
• Core Testing

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.
• Capacity: 25 L
• Hydraulic motor oil number 46 must be used.

Digital Data Acquisition & Control System :

• The automatic compressive, flexural and splitting tensile strength tests of construction materials such as concrete, cement mortar, masonry units, paving blocks, roofing tiles by processing of data from load-cells, pressure transducers or displacement transducers which are fitted to the machine.
• All the operations of are controlled from the front panel color resistive TFT-LCD touchscreen display and function keys.
• The unit has easy to use menu options and displays all menu options simultaneously.
  enables simultaneous display of machine status, test values, warnings during operation and test graphs such as load-time or load-displacement curves in real time.
• Digital graphic display of the unit is able to draw real-time –Load vs. Time– or –Stress vs. Time– graphics.

Main Features :

• 2 analog channels for load cell or pressure sensors or displacement sensors
• Can control 2 frames
• Provides load control of two separate testing frames with Closed-loop PID
• Optional integrated thermal printer
• Real-time numeric display of load, loading rate and curves
• Up to 8-point calibration support
• User-customizable limits and test termination conditions
• Storage capacity up to 10,000 test results
• Configurable graph axes
• Three unit systems selection
• Multi-language support
• LAN connection for transfer of test data
• USB port for flash drive data transfer
• Password protection
• Record of test results in txt and MS Excel format
• Customizable IP

Hardware :

• 2 fully customizable analog channels with 24-bit ADC and PGA-FPGA circuit
• 800°480 pixel and 65535 color TFT-LCD touchscreen
• 33 Hz control loop
• ARM Cortex M3 processors for data acquisition and display
• Additional memory support up to 32 GB via USB flash drive
• Optional integrated thermal printer
• LAN and USB connectivity

Software :

• Software has been designed for data acquisition, processing, controlling, presentation and reporting compressive, flexural and splitting tensile strength tests of construction materials.
• The Automatic Compression Machine can be controlled by a computer with Software free of charge.
• The advanced functions for database management provide easy navigation of all saved data.
• Test parameters and details such as test type, sample type, customer details and report details can be entered and printed.
• Load vs. Time or Stress vs. Time graphs can be seen and printed in reports.

Tests Performed :

• Compressive strength of concrete cylinders/cubes
• Flexural strength of concrete beams
• Compressive and flexural strength of cement mortars
• Splitting tensile strength of paving blocks and cylinders
• Flexural strength of roofing tiles and kerbs
• Compressive strength of masonry units

Capacity (kN) :

• AECE2236/A - 1500
• AECE2236/B - 2000
• AECE2236/C - 3000

Roughness (°m) :

• AECE2236/A - – 3.2
• AECE2236/B - – 3.2
• AECE2236/C - – 3.2

° Lower Platen (mm) :

• AECE2236/A - 300
• AECE2236/B - 300
• AECE2236/C - 300

° Upper Platen (mm) :

• AECE2236/A - 300
• AECE2236/B - 300
• AECE2236/C - 300

Max. Vertical Clearance (mm) :

• AECE2236/A - 340
• AECE2236/B - 340
• AECE2236/C - 340

Piston Diameter (mm) :

• AECE2236/A - 230
• AECE2236/B - 250
• AECE2236/C - 320

Piston Stroke (mm) :

• AECE2236/A - 50
• AECE2236/B - 50
• AECE2236/C - 50

Horizontal Clearance (mm) :

• AECE2236/A - 320
• AECE2236/B - 350
• AECE2236/C - 440

Thickness of Platens (mm) :

• AECE2236/A - 50
• AECE2236/B - 50
• AECE2236/C - 50

Hardness of Platens (HRC) :

• AECE2236/A - 55–60
• AECE2236/B - 55–60
• AECE2236/C - 55–60

Oil Capacity (L) :

• AECE2236/A - 25
• AECE2236/B - 25
• AECE2236/C - 25

Max. Working Pressure (bar) :

• AECE2236/A - 400
• AECE2236/B - 400
• AECE2236/C - 400

Power (W) :

• AECE2236/A - 750
• AECE2236/B - 750
• AECE2236/C - 750

• Multi-language support and customizable interface
• Storage of 30 test results in one file
• Exporting test results to database
• Advanced graphical interface
• Save and recall test information
• Modification of machine parameters
• Exporting reports and graphs
• Flexible report formats
• Help and user manual display
• Pace rate control from 1 kN/sec to 20 kN/sec
• Accuracy Class 1 acc. to EN 12390-4
• Factory calibration certificate
• Closed-loop automatic testing
• Control via touchscreen unit or PC software
• Load measurement with pressure transducer
• Dual stage hydraulic pump
• Welded steel frame with single acting piston
• Automatic piston return
• Multi-point calibration
• Optional thermal printer
• Ethernet port for computer interface
• Maximum pressure valves to avoid machine overloading
• Piston travel limit switch
• Emergency stop button
• Software controlled maximum load value
• Front and rear transparent durable Plexiglas guards