Automatic Four Column Concrete Compression Testing Machines

Description

CONCRETE

Automatic Four Column Concrete Compression Testing Machines

STANDARS : EN 12390-3, 12390-4; BS 1881, ASTM C39

Table of Contents

• Overview
• Key Features
• System Components
• Heavy Duty Four Column Load Frame
• Upper and Lower Platens
• Distance Pieces
• Loading Cylinder Assembly & Limit Switch
• Hydraulic Power Pack and Control System
• Software and Data Management
• Main Features
• Safety Features

Overview

The Automatic Four Column Compression Testing Machines, available in 2000 kN, 3000 kN, 4000 kN, and 5000 kN capacities, are designed for consistent, precise testing of a wide range of concrete specimens.
They comply with EN, ASTM, and BS standards and meet CE safety requirements for operator protection.

Standard configurations include EN-compliant compression platens. Tests can be conducted using a digital readout unit or computer-based software.

Key Features

• Suitable for cylinders, cubes, and other block specimens.
• Simple operation for inexperienced users.
• Automatic test sequence from rapid approach to specimen failure.
• Real-time data acquisition and reporting.
• Multi-language software support (Turkish and English).

System Components

• Four Column Load Frame
• Automatic Hydraulic Power Pack
• Digital Data Acquisition & Control System
• Distance Pieces (Ø 200×30 mm, Ø 200×50 mm, Ø 200×80 mm)
• Ø 300 mm Upper and Lower Platens
• Loading Cylinder Assembly with Limit Switch
• Front and Rear Protective Doors

Heavy Duty Four Column Load Frame

Designed for long-term stability and accurate results, available in:

• 2000 kN
• 3000 kN
• 4000 kN
• 5000 kN

The robust frame ensures minimal deformation under load, providing precise and repeatable results.

Upper and Lower Platens

• Manufactured from high-quality, hardened steel.
• Surface roughness ≤ 3.2 µm for optimal testing.
• Centering rings for accurate sample alignment.

Upper Platen: Ø 300 mm (with ball seating assembly)
Lower Platen: Ø 300 mm

Distance Pieces

Distance pieces reduce vertical clearance between platens for optimal positioning. Standard sizes:

• Ø 200 mm (30 mm, 50 mm, 80 mm)

Loading Cylinder Assembly & Limit Switch

• Single-acting up-stroking ram.
• Maximum ram stroke: 50 mm.
• Integrated limit switch to prevent over-travel.
• Low friction PTFE seals for long service life.
• Automatic piston return after test completion.

Hydraulic Power Pack and Control System

Hydraulic Power Pack

• Dual-stage pump system:
  • Low-pressure gear pump for rapid approach.
  • High-pressure radial piston pump for testing.
• Very silent operation (1 kN/sec to 20 kN/sec loading rates).
• Maximum system pressure: 400 bar.
• Mobile design with four wheels for flexible installation.

Motor and Distribution Block

• AC motor with inverter-controlled variable speed.
• Distribution block controls oil flow and includes solenoid valves and pressure transducers.

High Precision Pressure Transducer

• Supplied with Class 1 precision from 50 kN.
• Optional upgrade for 1% full-range calibration.
• Suitable for early-age concrete, mortar, core, flexural, and splitting tests.

Oil Tank

• 25-liter hydraulic oil tank with level and temperature indicators.
• Hydraulic motor oil number 46 recommended.

Software and Data Management

Digital Data Acquisition System

• Real-time monitoring of load-time graphs.
• LCD display with intuitive menu options.
• RS-232 port for PC connectivity.

PC Software Features

• Free of charge.
• Real-time load-time graph plotting.
• Test management for compression, tensile, and splitting tests.
• Multi-language interface (Turkish and English).
• Ability to save and manage up to 24 specimen results per folder.
• Easy access and reuse of previous test data.

Main Features

• Pace rate control: 1 kN/sec to 20 kN/sec.
• Capable of controlling two frames (optional).
• Load control testing.
• Real-time graphical display of test results.
• Analog channels for multiple frame load cells.
• Multi-unit system (kN, kgf) and Metric/SI options.
• Real-time clock and date stamp.

Safety Features

• Maximum pressure valves to prevent overloading.
• Piston travel limit switch for enhanced protection.
• Emergency stop button.
• Software-controlled maximum load limits.
• Durable transparent Plexiglas safety guards at front and rear.

Conclusion

The Automatic Four Column Concrete Compression Testing Machines are the perfect choice for reliable, precise, and safe testing of concrete specimens. With intuitive software, robust construction, and full compliance with international standards, they ensure accurate results and maximum operator safety.