Servo Hydraulic Universal Testing Machine, Servo Valve

UTEST-S Series Universal Testing Machines are high limit frameworks with single test space and appropriate for tensile, compression, flexure tests on a wide scope of various materials, for example, round, level and specimen examples for quality control, product development, research or procedure advancement. Testing frameworks for fragile materials such steel or fasteners requires high firmness load outlines that limit the measure of deformation energy that is put away in the edge.

Servo-Hydraulic Universal Testing Machines can be controlled by means of: Multifunctional Remote Control Hand Set that is situated on the frame, Digital Control Unit or Material Testing Program (MTP) programming that introduced on the PC associated with the Control Unit.

Servo-Hydraulic Universal Testing Machine can do tensile and yield, pressure, flexure tests with loads and displacement controls.

UTEST-S Series can be switched between load and displacement control during the test.

The main characteristics are;

• Rigid 4 columns construction providing superior axial and lateral stiffness and precision alignment,
• Closed-loop servo controlled hydraulic power pack for accurate test control,
• High speed electronic control and data acquisition unit for accurate test results,
• Multifunctional Remote Control Hand Set for fast test setup and testing,
• Single test space design with convenient vertical testing clearance,
• Double acting servo-actuator mounted on top of the crossbeam
• Actuator with anti-rotation system to prevent the natural tendency of the actuator to rotate.
• Long piston stroke for the most convenient and easy adjustment and testing of different sample lengths,
• Digital displacement transducer for the best positioning and measuring accuracy
• Easy calibration procedure,
• Material Test Program (MTP) Software for easy using,
• Chrome plated columns for easy cleaning and longest life.
• Hydraulic Wedge Actions Grips
• Grip control system mounted on the frame
• Compression platens or bending devices may be fixed directly into wedge grips,
• Limit switch on the piston as well as the safety limit valves on the hydraulic system,

Servo-Hydraulic Universal Testing Machine is consisting of a Load Frame, Advanced servo controlled automatic power pack, Electronic Control Unit and Material Testing Software as standard.

Pertaining to standards and requirements, Video extensometers, Automatic Extensometers, Clip-On Extensometers, Flexure, Compression Test Apparatus, High Temperature Cabinets and Multifunctional Remote Control Hand Set can be integrated on the Servo-Hydraulic Universal Testing Machines.

Frame

UTEST-S Series Servo-Hydraulic Universal Testing Machines are manufactured 600, 1000 and 2000 kN capacities. The double acting servo actuator, which is integrated on the upper crosshead, has a long piston stroke which makes vertical testing space accessible for easy and efficient testing of different samples lengths. Load cell for measuring the load is mounted between lower grip and base plate.

ADVANCED SERVO CONTROLLED AUTOMATIC POWER PACK WITH SERVO VALVE

The UTC-4870 Automatic Power Packs with Servo Valve, are advanced power packs can be used on any testing system ideal for R&D laboratories and Universities for advanced tests with P.I.D. Closed loop control. It can perform tests under load and displacement controls. The frequency of the P.I.D controller and data acquisition is 1000 Hz. UTC 4870 automatic power packs are designed to supply the required oil to the load frames for loading, unloading or low cycle dynamic testing. All the operations of Data Acquisition and Controls System can be controlled from the touch screen front panel of a 240x320 LCD display or computer.

The UTC-4870 can control up to 4 different. For each frame there is one load cell (or pressure transducer) input and one displacement transducer input for control. There are an extra three analogue channels for other sensors such as load cells, pressure transducers, displacement transducers etc. built in the system.

The power pack automatically controls and supplies oil to the frame which is chosen by the user via the touch screen LCD digital control unit or by choosing the test type from the computer software.

The type of displacement transducer can be TTL or analogue ( It must be same type for all frames ).

The main specifications of the UTC-4870 power packs are;

• Up to 5 litre/minute pump delivery (max) 280 bar 3 kW motor rate
• Loading-unloading with ± 0.5% rate accuracy
• Staying at constant load within 0.005% accuracy of the maximum load
• The control of the load starts from 0.3 % of the maximum load capacity of the system.

All power packs can be connected to the computer through Ethernet port for advanced test cycles, data acquisition and reporting. The modulus of elasticity, Poisson's Ratio and compressibility parameters is easily and properly evaluated by attaching LVDT or extensometers on to the sample. All the calibration values of the transducers and also all the test parameters for the last test is automatically stored on the control unit. All power packs incorporate a pressure safety valve for each frame separately and a cooling unit.

Main Features

• 3 analogue channels for displacement transducers, extensometers, etc. built in the system as an addition  to frame loadcells/pressure transducers
• Instrumentation amplifiers for sensor excitation and amplification
• 1/65.000 resolution and 1.000 Hz control for each channel
• Ethernet port for connecting to computer
• 240x320 pixel LCD display
• Touchscreen operator panel
• Can control 4 frames
• Can execute load, displacement or strain controlled tests. For post peak applications UTC-4870 must be  selected.
• Free of charge 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 stiffeness)
• Pace rate control from 0.01 mm/min to 100 mm/min (UTM-600S and 1000S) and 75 mm/min (UTM-2000S)
• Multiple language support
• Real time clock/date