PWS Series Electric-hydraulic Servo Dynamic& Static Universal Testing Machine

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Product Description:

、Main functions
  WDS series are suitable for tensile, compression, bending,cutting shearing and tearing test of rubber peeling and tearing plastic, electrical wire and cable, composite, profiled bar, waterproof roll, etc. They are essential testing instruments for quality testing section, university and college, research institution and industrial and mining enterprise.
、Product features  
 This machine equips alternating servo motor for driving crossbeam and imported photoelectric encoder for displacement measure. The controller adopts flush type monolithic computer structure and is equipped multitask operating system and built-in powerful test control software, which includes the test system with measuring, controlling, calculating and saving functions.  This machine has the following performances: Automatically calculating stress, elongation rate, tensile strength and modulus of elasticity
;automatically preserving all of 16 groups testing data;automatically recording the value of extremal vertex, breakpoint, appointed value of force and elongation;testing result can be scanned by pages and printed;the third class purview management;real-time electronic clock, and automatically recording the testing date and time.
、Technical Specification:




Measuring range of force (kn)


Accuracy of testing force

±1% of indicated value

Resolution of crosshead displacement Measurement

0.01 mm

Speed range of crossbeam

0.1 mm/min~500 mm/min,step less speed regulation and arbitrary setting

Effective testing space (mm)


Power supply


Working environment


Main configuration

Imported servo motor and speed adjustment system, precision photoelectric encoder.

Overall dimension of host machine (mm)


Weight (kg)


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Q:What are the procedures for checking the pressure gauge in that department?.
The Bureau under the quality supervision bureau is a pressure room or a heating roomJust take the watchband and fill out the inspection form in the mail room
Q:Why should I add a plug valve before the pressure gauge?
The installation of plug valves in front of the pressure gauges is mainly for the convenience of disassembly and installation of pressure gauges.
Q:The gas pressure reducer has two measuring ranges, one big and one small pressure gauges. What's the function of each? What's the meaning of a red line on some pressure gauges?
Large display inlet pressure, small display outlet pressureThe red line is generally two or a thick, this is the user's own painting, said the pointer is the normal status in this area, especially for the frequent adjustment of the place, as long as the watch will know to what extent the regulation
Q:What do you think of the air conditioner liquid pressure gauge? How much pressure does it add?
You find a Fo and ask the not good.
Q:Band sawing machines sometimes fail to rise, sometimes very slowly, and sometimes pressure gauges have no pressure
For many reasons, there may be oil change or insert the owl problem, to find the best manufacturers see sawing machine.
Q:What is the actual size of the pressure gauge nozzle G1/2?
G stands for non threaded cylindrical pipe threadsTooth angle: 55 degrees: G1/2-LH (left, right, wrong)Size code, number of teeth per inch, diameter, middle diameter, path1/8 289.728, 9.147, 8.5661/4 1913.157, 12.301, 11.4453/8 1916.662, 15.806, 14.951/2 1420.955, 19.793, 18.6313/4 1426.441, 25.279, 24.11711133.249, 31.77, 30.29111/4 1141.91, 40.431, 38.95211/2 1147.803, 46.324, 44.845
Q:What do you think of this air conditioner Freon pressure gauge?
10Kg/cm - =1Mpa, a kilogram force is one kilogram role in 1CM - surface pressure.The red is the temperature, and the inner ring red is the R22 refrigerant, and the outer red is the R12 refrigerant.Now R12 basically eliminated, R22 shouted to be eliminated, but the cooling effect is good, currently using the mainstream
Q:Seismic pressure gauge how gas?
Generally do not recommend their refueling. First of all, to check that the oil leak there, only the oil spill point can be solved again, do not solve, plus the leak. Say you add what kind of oil, general manufacturers have silicone oil (silicone oil has a variety of specifications), some glycerin, if two kinds of oil mix is more trouble, affect observation pressure. It is recommended to be returned to the manufacturer for repair.
Q:The outlet flow of centrifugal pump to adjust the valve closed small, vacuum gauge and pressure gauge change?
The centrifugal pump is generally through adjusting the outlet flow control valve, outlet valve closed after the small pump flow becomes smaller, in accordance with the pump performance curve is due to the increased lift, outlet pressure gauge pressure will increase, the centrifugal pump is generally not set the vacuum meter, if in order to control cavitation vacuum is provided at the entrance the table, then because the flow rate decreases, the flow of small vacuum gauge instructions will become smaller, it is lower vacuum (absolute pressure)
Q:Pressure meter return error definition
According to JJG52-1999, Bourdon tube, general pressure gauge, pressure vacuum gauge and vacuum gauge,, return error:For the same test point, the difference between the indication value after tapping the watch case at the step-up (or step-down) and the buck (or boost) testThe return error is the absolute value

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