Compression Testing Machine - 4 Columns

Product Overview

STANDARD SUPPLY :

• The Four Column Automatic Concrete Compression Testing Machines consist of:
• Heavy Duty Four Column Load Frame
• Automatic Hydraulic Power Pack
• Digital Data Acquisition & Control System
• Distance Pieces ( 200 30 mm, 200 50 mm and 200 80 mm)
• Upper Platen 300 mm (with ball seating assembly)
• Lower Platen 300 mm
• Loading Cylinder Assembly & Limit Switch for safety
• Front and Rear Protective Doors

HEAVY DUTY FOUR COLUMN LOAD FRAME :

Capacities available:

• 2000 kN
• 3000 kN
• 4000 kN
• 5000 kN
• The Four Column load frame provides the stability required for accurate and repeatable test results over years of operation.

UPPER / LOWER PLATENS :

• Upper Platen 300 mm (with ball seating assembly)
• Lower Platen 300 mm

Features:

• Manufactured from high quality hardened and finished steel
• Surface roughness 3.2 m
• Centering rings on lower platen for proper specimen positioning

DISTANCE PIECES :

• Distance pieces are used to reduce vertical clearance between upper and lower platens.

Supplied with 200 mm distance pieces.

LOADING CYLINDER ASSEMBLY & LIMIT SWITCH :

• Single-acting up-stroking ram
• Piston diameter varies according to capacity
• Maximum ram stroke: 50 mm
• Limit switch prevents over-travel and cuts pump power
• Automatic piston return after test
• Pressure transducer used for load measurement
• Low friction coaxial PTFE seal between piston and cylinder

HYDRAULIC POWER PACK :

• Automatic dual-stage hydraulic power pack controlled by digital readout unit.
• Loading rate: 1 kN/sec to 20 kN/sec
• Accuracy: 5%
• Rapid approach pump supplied as standard
• Maximum working pressure: 400 bar
• Safety valve prevents overloading
• Equipped with 4 wheels for easy movement

DUAL STAGE PUMP :

• Low pressure gear pump rapid approach
• High pressure radial piston pump test execution
• Rapid approach shortens total testing time.

MOTOR :

• AC motor controlled by inverter
• Oil flow adjusted via motor speed variation

DISTRIBUTION BLOCK :

Includes:

• Solenoid valve
• Safety valve (maximum pressure valve)
• Pressure transducer
• Low pressure gear pump
• High pressure radial piston pump

HIGH PRECISION PRESSURE TRANSDUCER :

All models supplied from 50 kN as standard according to :

• EN 12390-3
• EN 12390-4
• BS 1881
• ASTM C39

Enables:

• Early age compression strength tests
• Flexural and splitting tests (with accessories)
• Mortar compression tests
• Core testing

OIL TANK :

• Capacity: 25 L
• Oil level and temperature indicator

DIGITAL DATA ACQUISITION & CONTROL SYSTEM :

• Designed to control the machine and process data from load cells and pressure transducers.
• Front panel LCD display with function keys
• User-friendly menu options
• Monitoring of loading rate and load values
• Real-time Load vs Time graph

SOFTWARE :

• Entry of sample, company, laboratory and test data
• Load-time graphic display
• Test and sample report
• PC control (Start/Stop)
• Data acquisition for compression, tensile and splitting tensile tests
• Storage of results for 24 specimens per folder
• Review of old test folders
• Highlight 12 specimen curves in different colors
• Reuse stored information
• Access previous test data for new reports

MAIN FEATURES :

• Pace rate control: 1 kN/sec to 20 kN/sec
• Optional control of 2 frames
• Load-controlled testing
• Real-time graph display
• Analog channels for different load cells
• LCD display
• Unit systems: kN and kgf
• Unit systems: SI and Metric
• Multi-language support
• Real-time clock and date
• Free PC software

**SAFETY FEATURES

• Maximum pressure safety valve
• Piston travel limit switch
• Emergency stop button
• Software-controlled maximum load value
• Front and rear transparent durable Plexiglas guards

Applications

The Automatic range of 2000 kN, 3000 kN, 4000 kN and 5000 kN capacity four column compression testing machines have been designed for reliable and consistent testing of a wide range of specimens.

Machines confirm all EN, ASTM and BS standards written above. These also meet the requirements of CE norms for the safety and health of the operator.

Testing machines are supplied with EN compression platens as standard.

Tests can be performed either by Digital Readout Unit or on a computer using free Software.

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 with the centering apparatus, the only required operations are:

Setting test parameters, including pace rate (only required when specimen type is changed)

Pressing the START button on the control unit

The machine automatically starts rapid approach. When the specimen touches the upper platen, rapid approach ends and loading starts at the selected pace rate and stops once the specimen fails.

Test parameters and results are automatically saved.

Technical Specifications

Dimensions (cm) :

• AECE2042/A - 91 56 107
• AECE2042/B - 102 57 112
• AECE2042/C - 109 61 135
• AECE2042/D - 115 64 154

Weight (kg) :

• AECE2042/A - 1130
• AECE2042/B - 1900
• AECE2042/C - 2450
• AECE2042/D - 2450

Capacity (kN) :

• AECE2042/A - 2000
• AECE2042/B - 3000
• AECE2042/C - 4000
• AECE2042/D - 5000

Roughness ( m) :

• AECE2042/A - 3.2
• AECE2042/B - 3.2
• AECE2042/C - 3.2
• AECE2042/D - 3.2

Lower Platen (cm) :

• AECE2042/A - 300
• AECE2042/B - 300
• AECE2042/C - 300
• AECE2042/D - 300

Upper Platen (cm) :

• AECE2042/A - 300
• AECE2042/B - 300
• AECE2042/C - 300
• AECE2042/D - 300

Max. Vertical Clearance (cm) :

• AECE2042/A - 33
• AECE2042/B - 33
• AECE2042/C - 52
• AECE2042/D - 52

Piston Diameter (cm) :

• AECE2042/A - 25
• AECE2042/B - 32
• AECE2042/C - 37
• AECE2042/D - 41

Piston Stroke (cm) :

• AECE2042/A - 5
• AECE2042/B - 5
• AECE2042/C - 5
• AECE2042/D - 5

Horizontal Clearance (cm) :

• AECE2042/A - 35
• AECE2042/B - 44
• AECE2042/C - 49
• AECE2042/D - 53

Thickness of Platens (cm) :

• AECE2042/A - 5
• AECE2042/B - 5
• AECE2042/C - 5
• AECE2042/D - 5

Hardness of Platens (HRC) :

• AECE2042/A - 55 60
• AECE2042/B - 55 60
• AECE2042/C - 55 60
• AECE2042/D - 55 60

Oil Capacity (L) :

• AECE2042/A - 25
• AECE2042/B - 25
• AECE2042/C - 25
• AECE2042/D - 25

Max. Working Pressure (bar) :

• AECE2042/A - 400
• AECE2042/B - 400
• AECE2042/C - 400
• AECE2042/D - 400

Power (W) :

• AECE2042/A - 750
• AECE2042/B - 750
• AECE2042/C - 750
• AECE2042/D - 750