1、 Product Name: Microcomputer Controlled Electro Hydraulic Servo Universal Testing Machine
2、 Specification and model: WAW-1000E

3、 Applicable standard: GB/T 2611-2007 "General Technical Requirements for Testing Machines"
JB/T 7406.1-1994 "Terminology of Testing Machines - Material Testing Machines"
GB/T 16826-2008 "Electro hydraulic Servo Universal Testing Machine"
GB/T 16825.1-2008 "Inspection of static uniaxial testing machines - Part 1: Inspection and calibration of force measuring systems for tensile and/or compressive testing machines"
GB/T 22066-2008 "Evaluation of Computer Data Acquisition System for Static Uniaxial Testing Machine"
JJG 139-1999 "Tensile, compressive, and universal material testing machines"
JB/T 6146-2007 "Technical Conditions for Stretchers"
JB/T 6147-2007 "Technical Requirements for Packaging, Packaging Marking, Storage and Transportation of Testing Machines"
GB/T 228-2010 "Tensile Test Method for Metallic Materials"
GB/T 7314-2005 "Test Method for Room Temperature Compression of Metallic Materials"
GB/T 232-2010 "Bending Test Method for Metallic Materials"
4、 Product Introduction and Features:
◆ Product Introduction:
This testing machine is an important instrument and equipment for testing the physical properties, mechanical properties, process performance, structural seismic strength, and internal and external defects of various materials and their products in various environments and simulated states. It is possible to conduct tensile, compressive, bending, shear and other types of tests on metal or non-metal materials according to corresponding standards. Performance indicators such as tensile strength, yield strength, specified non proportional elongation strength, elastic modulus, etc. of the tested material can be obtained. It is possible to achieve closed-loop control such as constant rate loading, constant rate deformation, constant rate displacement, constant rate strain, etc. It is also possible to conduct process qualification performance verification tests on materials or products.
◆ Technical features and advantages:
This series of testing machines is designed and manufactured according to the national standard GB/T 16826-2008 "Electro hydraulic Servo Universal Testing Machine". It is a combination model of E-type host, servo control oil source, and microcomputer automatic control system. It consists of six parts: dual space testing machine host, servo oil source, chuck oil source, fully digital measuring and control device, manual control box, and computer system.
The host adopts a high stiffness design, and each load-bearing component undergoes finite element analysis, design, precision machining, and testing. The oil source system adopts a load adaptive throttling speed regulation system, which has undergone repeated pressure tests and maximum load holding tests. The controller adopts a new generation of high-performance, intelligent fully digital independent controller. The measurement and control software adopts advanced measurement and control algorithm combination, which can accurately control the entire experimental process and fully meet the requirements of domestic and international material testing methods.
1. The host adopts a streamlined appearance design, with the oil cylinder placed below. The strength distribution of each component is reasonable, and the overall combination is scientific, atmospheric, and beautiful. It has independent painting technology and can customize the painting effect and color according to customer needs to match the customer's on-site environment;
2. The workbench and upper crossbeam adopt a four column double screw structure to form a high stiffness test space;
3. The coaxiality between the centerline of the upper and lower clamping heads and the tensile axis of the testing machine is 8% (significantly better than the national standard requirement of less than 12%);
4. The adjustable connection structure between the screw and the base adopts a nut compression type, which is convenient for installation and debugging;
5. The lead screw is made of high-performance carbon structural steel precision machining, and the lead screw tension nut is made of QT500-7, with a low friction coefficient and high transmission efficiency; A clearance mechanism is installed between the tension nut and the lead screw to ensure a tight connection between the tension nut and the lead screw, ensuring the continuity of the test loading;
6. The upper and lower crossbeams are equipped with built-in clamping small oil cylinders, which are safer, more reliable, have a longer lifespan, do not leak oil, and have a beautiful appearance compared to external clamping oil cylinders;
7. The clamping of the sample is hydraulic automatic clamping, and the clamping force of the sample increases with the increase of the test force, ensuring a secure clamping of the sample; The chuck is a hydraulic follow-up structure, and its jaws move with the push rod throughout the stretching process. The two jaws move synchronously to maintain coaxiality and also buffer the impact force when the sample breaks;
8. Wear resistant lining plates are installed between the relative sliding parts of the clamp plate and the crossbeam to protect the crossbeam from damage and facilitate maintenance and replacement after long-term use;
9. The dovetail connection type is used between the clamp plate and the clamp, ensuring precise and reliable positioning;
10 . The oil cylinder is a one-way plunger type clearance sealed frictionless oil cylinder. The unique processing technology ensures precise clearance between the oil cylinder and the piston, which can achieve oil film sealing to maintain hydraulic load, and the piston lifting is not subject to any mechanical friction resistance, which is conducive to flexible and precise control. At the same time, the oil cylinder and piston never wear out (low-end products use the Steller seal method, which is prone to oil leakage and seepage during long-term high-pressure operation, and there is frictional resistance during operation, which is not suitable for demanding tests);
11. The hydraulic system adopts servo closed-loop control and is equipped with highly responsive imported servo valves. The directional valve, sequence valve, etc. all use imported component valve cores, which have fast response, high sensitivity, tracking, follow-up, adjustability and other functional characteristics, and can achieve fully automatic and precise control. It is currently an advanced, high-quality and high-end hydraulic servo system in testing machines;
The hydraulic system design fully considers energy conservation, reliability, safety, and environmental protection. Adopting a differential pressure throttling speed control servo servo system, the system's working pressure automatically adjusts with changes in load, reducing system heating and saving energy. All components are made of environmentally friendly components;
13. The imported internal meshing high-pressure gear pump is directly connected to the motor, with a compact structure, smooth operation, and noise level below 70dB;
14. The high-precision spoke load sensor used in the host has high comprehensive accuracy, high sensitivity, and good repeatability. After random calibration, the experiment is not affected by external forces, ensuring the accuracy of the experimental process and parameters. The force direction of the tension, compression and other test sensors is consistent. Calibration, simple and convenient;
15. Select high-quality high-pressure hoses and fittings to ensure no leakage occurs;
16. Configure a high-performance intelligent all digital controller, using all digital PID regulation, equipped with independent servo amplifiers, measurement and control software, and data acquisition and processing software, which can achieve multiple closed-loop control modes such as constant rate test force, constant rate cylinder displacement, and constant rate strain, and can smoothly switch between different control modes;
17. The measurement and control system is equipped with a multifunctional testing software package, which adopts high-speed data acquisition technology to achieve high-speed acquisition of multi-channel data; Can analyze and process test results according to different test method requirements, with human-machine interaction programming control function, convenient for adding new test standards; It has powerful graphic operation functions, which can display and draw experimental curves and display experimental data in real time. It has functions such as curve scaling, graphic enlargement, and clipping, as well as cursor following display. Capable of storing complete test curves and test data; Capable of outputting single test reports and printing batch test reports;
18. It has a network interface that enables data networking and remote control functions;
19. Safety protection device: It has protection functions such as test force overload, over setting, power-off, and piston reaching the limit position.
20 . This series of universal testing machines has passed inspections and certifications such as the National Steel Material Testing Center, JCSS, CNAS, etc;
◆ Chinese version of dedicated measurement and control software
The Chinese version of the (Hydraulic) specialized measurement and control software has a multifunctional software package that can select suitable testing software according to the requirements of different industry users, meet the testing standards of various industries, and has modular and open design. It not only provides basic test solution results commonly used in GB, ASTM, DIN, ISO, JIS and other standards, but also allows users to design different calculation formulas according to their own needs to solve the required results. It also provides a test report template that can be freely designed by users to meet their personalized needs and styles of test reports. The user interface supports Windows XP and previous versions of operating systems, as well as Windows 7, Linux, Windows 10, and other operating systems.
Curve management and analysis:
During the experimental run, display the experimental process in real-time through single or multiple graph curves;
Display single or multiple test curves through query method in non experimental operation state;
The curve coordinates can be preset or set online;
The experimental data can be traversed through curves;
Can perform operations such as translation and scaling on curves;
It can display feature points on the curve and modify and save them;
The curve can be printed and output independently or embedded in the test report.

Main technical parameters:
（1） Host parameters:
1.1. Number of columns: 6 columns (4 columns, 2 lead screws);
1.2. Maximum distance between stretching clamps: 1400mm;
1.3. Maximum compression space: 650mm;
1.4. Effective distance between columns: 450mm;
1.5. Maximum stroke of piston: 250mm;
1.6. Piston loading speed range: 0.5~90mm/min;
1.7. Maximum speed for adjusting the crossbeam: approximately 300 mm/min;
（2） Measurement parameters:
2.1. Maximum test force: 1000kN;
2.2. Testing machine level: Level 0.5;
2.3. Effective measurement range of test force: 1% -100% FS;
2.4 Test resolution: 1/500000 of the full range (there is only one resolution for the full range, without grading);
2.5. Measurement accuracy of test force: ± 0.5%;
2.6. Linearity of load cell: 0.2% F;
2.7 Displacement measurement range: 0~250mm;
2.8 Displacement measurement resolution: 0.01mm;
2.9. Displacement measurement accuracy: ± 0.5%;
2.10. Deformation measurement range: 1% -100% FS;
2.11. Deformation measurement resolution: 0.01mm;
2.12. Deformation measurement accuracy: ± 0.5%;
（3） Control parameters:
3.1. Force control speed range: 0.001% to 5% FS/s;
3.2. Force controlled speed control accuracy: ± 0.2% when 0.001% to 1% FS/s; ± 0.5% at 1% to 5% FS/s;
3.3. Force control accuracy: ± 0.002% FS;
3.4. Deformation control speed range: 0.001% to 5% FS/s;
3.5. Deformation control speed control accuracy: ± 0.2% at 0.001% to 1% FS/s; ± 0.5% at 1% to 5% FS/s.
3.6. Deformation control accuracy: ± 0.002% FS;
3.7. Displacement control speed range: 0.5-50mm/min;
3.8. Displacement control speed control accuracy: ± 0.2%;
3.9. Displacement control maintains accuracy: no error;
3.10. Strain control+strain control+displacement control, automatic yield determination, suitable for GB228-2010 A method;
3.11. Strain control+displacement control+displacement control, automatic yield determination, suitable for GB228-2010 A method;
3.12. Stress control+strain control+displacement control, automatic yield determination, suitable for GB228-2010 B method;
3.13 Stress control+displacement control, automatic determination of non elastic segments, suitable for force controlled tensile fracture;
（4） Attached parameters:
4.1. Clamping range of circular specimens: Φ 13- Φ 26, Φ 26- Φ 40, Φ 40- Φ 55;
4.2. Plate specimen clamping thickness: 2-20mm, 20-40mm;
4.3. Maximum clamping width of the plate specimen: 120mm;
4.4. Clamping method: hydraulic clamping;
4.5. Size of upper and lower pressure plates: Φ 200;
（5） Machine parameters:
5.1. Overall dimensions of the host: approximately 880 × 760 × 2660mm;
5.2. Oil source dimensions: 1200 × 870 × 900mm;
5.3 Weight: The main engine weighs about 3500kg, and the oil source weighs about 300kg;
5.4. Oil pump motor power: 2.2kW;
5.5. Power of crossbeam moving motor: 0.4KW;
5.6. Total power: 2.2kW (380V)+0.4kW (380V);
5.7 Power supply: three-phase five wire system, 380V, 50HZ.
5.8. Operating environment: no vibration, no dust; Room temperature (15-35 ℃); Humidity<70%.