CONCRETE RAILWAYS SLEEPERS & BEARS STATIC TESTING MACHINE

Concrete Railway Sleepers and Bearers Static Testing Machine

EKE 0100:

EKE 0100 Concrete Railway Sleepers and Bearers Static Testing Machine, has been designed basically to perform static tests according to EN 13230-3 and EN 13230-4 (Prestressed monoblock and twin-block reinforced sleepers and bearers tests) and also Low vibrating track system (LVT-System) tests. The machine mainly consist of testing frame with accessories and Advanced servo controlled hydraulic power pack, control electronic and data acquisition system build in the power pack unit. Main difference between static and dynamic test systems are loading actuator and power pack.

The capacity of the frame is 1000 kN. Load cell is used for load measurements to have better accuracy. The frames is supplied complete with test sample carrying and holding apparatus for easy test setup, upper and lower Articulated supports for  static tests. Moreover this system may perform three and four point flexure on concrete beams.

EKE 4850 and EKE 4860 Automatic Power Packs with proportional valve, are advanced power packs with P.ID closed loop control. They can perform tests under load and displacement controls. The frequency of the P.I.D controller and  data acquisitions id 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 Control system can be controlled from the touch screen front panel of a 240 x 320 LCD display or computer. There are total 4 analogue input channels. One is used for load other sensors such as LVDT’s strain gauges, built in the system.

The maximum oil flow is 2 litters per minute , at 300 bar pressure. Accuracy of the system is 0.1 kN and minimum controllable load is around 10 kN. Control unit can be connected to the computer through Ethernet 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 pressure safety valve and cooling unit.

Features:
-    4 Analogue channels for load cell, LVDT’s , strain gauges, built in the system.
-    Instrumentation amplifiers for sensor excitation and amplification
-    1/65.500 resolution and 1,000 Hz control for each channel.
-    Ethernet port for connecting to computer.
-    240 x 320 pixel LCD Display
-    Touch screen operator panel
-    Can control 2 frames (EKE 4850) or 4 frames (EKE 4860)
-    Can execute load or displacement control tests.
-    PC software for test control and advanced report printout
-    Pace rate control from 0.01 kN/s to 100 kN/s (depend on the specimen stiffness)
-    Real Clock/Date

Data Acquisition & PC Software:
CONCRETE RAILWAY SLEEPERS & BEAREES STATIC TESTING MACHINE can be controlled by a computer with the software. The advanced functions for data base management provide and 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 sub-module for making test on LVT samples, positive and negative bending tests on sleepers. Loading rates, dwell times, delays and unloading are performed as in standards.

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

Power Pack:
•    Dimensions : 900 x 550 x 1050 mm
•    Weight (Approx.) : 170 kg
•    Power : 1500 W

Technical Specifications :
-    Capacity : 1000 kN static (UTSP-0100)
-    Load Measurement Accuracy : +/- % from 1 % of the capacity.
-    Piston Stroke : 400 mm
-    Dimensions : 2500 kg (Approx.)
-    Weight (Approx.) 990 x 7690 x 2550 mm ( Installed)