CONCRETE RAILWAY SLEEPERS AND BEARERS STATIC TESTING MACHINE

Concrete Railway Sleepers, Bearers and LVT Blocks Static Testing Machine, has been designed basically to perform static tests according to EN 13230-2, EN 13230-3 and EN 13230-4 (Prestressed mono block sleepers, twin-block reinforced sleepers, bearers tests) and also Low vibrating track blocks tests.

The machine is mainly consist of testing frame and advanced servo controlled hydraulic power pack with P.I.D. closed loop control electronics and data acquisition system is also build in power pack unit. Main differences between static and dynamic test systems are loading actuator and power pack.

The capacity of the frame is 600 kN. Load cell is used for load measurements to have better accuracy.

They can perform tests under load and displacement controls. The frequency of the P.I.D controller and data acquisition is 1000 Hz. Power pack is designed to supply the required oil to the load frame for loading and unloading. All the operations of Data Acquisition and Controls System can be controlled from the touch screen front panel of a 7 inch LCD display or PC software.

There are total 4 analogue input channels. One is used for load cell and remaining three analogue channels can be used for other sensors such as LVDT’s, strain gauges, built in the system.

The maximum oil flow is 4,3 liters per minute, at 300 bar pressure. Accuracy of the system is 0.1 kN and minimum controllable load is around 10kN.

Control unit can be connected to the computer through USB for advanced test cycles, data acquisition and reporting. All the calibration values of the transducers and also all the test parameters for the last test is automatically stored on the control unit. Power pack incorporates a pressure safety valve and a cooling unit.

The Concrete Railway Sleepers, Bearers and LVT Blocks Static Testing Machine is supplied complete with;
•Test sample carrying and holding apparatus for easy test setup, upper and lower Articulated supports for static tests
•Resilient Pad Set, 2pcs (each set includes 3 pcs. resilent pad)

Test accessories for prestressed mono-block and twin-block reinforced sleepers or test accessories for bearers or test accessories for low vibration track (LVT) blocks should be ordered separately.
Moreover this testing system may perform three and four point flexure test on concrete beams with accessories to be ordered separately.

Data Acquisition & PC Software
Concrete Railway Sleepers and Bearers Static Testing Machine can be controlled by a computer with the software (given free of charge by PROFIXLAB). The advanced functions for data base management provide an easy navigation of all saved data. The test results certificate includes all descriptive information. Therefore, test parameters can be set and details about the test carried out such as client details, test type, specimen type, user info and other information required can be entered and printed out as well as test report and graph.

The software is developed for making test respect to EN 13230 standard. On the software there are submodules for making test on LVT samples, positive negative bending tests on sleepers. Loading rates, dwell times, delays and unloading are performed as in standard.

The software also includes an easy calibration check facility. Can do calibration easily from 10 points. The machine gives some constant load values and waits there for easy check mechanism. As standard requires the pace rate of 2kN/sec is suggested, but user can modify the test rate. For each type of different tests an easy report generation is available.

PX6 LCD Data Acquisition Control System
• Different menu languages can be selected via the device via language support. ( English, Spanish, Russian)
• 4 analog high-precision measuring capacities
• 2 analog output sockets (DAC)
• 5 digital outputs for general purpose (can pull relays and control different electrical units)
• Potentiometer input (reference signal input for calibration and remote control)
• 2 each RS 232 serial communication signal outputs (communicates with computers)
• USB communication signal output (communicates with computers)
• Connects to local networks and the Internet with Ethernet 10/100 network connection output (optional)
• Connects to portable devices via Bluetooth wireless connection (optional)
• 500 test results can be stored in internal memory
• Due to the SD (memory) card connection, a large number of test results can be stored in the device memory (40,000 test results).
• Color TFT display supports, 16M colors and supports 800x480 pixel screen resolution
• Resistive touch screen allows easy operation of device functions by touching the screen
• Access to frequently used functions with 6 membrane keypads
• The industrial standard operates with 24VDC supply voltage. Built-in voltage filter and regulator protects against input signal fluctuations
• Sensor modules are compatible with loadcell (load cell), pressure sensor (4-20 / 0-20 mA), potentiometric distance sensors, strain washers, thermocouples and all kinds of mV output sensors.
• Provides precise calibration with multi-point calibration (up to 10 points)
• Setting and calibration menus are password protected and prevent unauthorized use.
• Allows testing with a computer or device
• The device can switch between one-touch load and deformation control modes.
• Firmware updates can be made via USB input. In addition, via the computer allows remote or internet update.