YJS-600 Digital Display Type Well Cover Hydraulic Compression Testing Machine

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Loading Port:: China Main Port

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Ⅰ、Main functions
This machine adopts hydraulic load, manual control, electronic measurement and digital display and has the function of force peak value preserving and manual eliminating force peak value. It is applicable for compressive strength test of well covers, which are made of steel fiber reinforced concrete and cast iron.
Ⅱ、Products catalogue
YJS-600A Standards:CJ/T121-2000、CJ/T3012-93
YJS-600B Standards:JC889-2001、JC/T948-2005
Ⅲ、Main Technical Specifications

Tyoe Parameters	YJS-600A	YJS-600B
Maximum testing force	600kN
Accuracy of testing force	±2%
Testing space(㎜)	1250×300	1280×260
Pressure plate size(㎜)	Ф356	Ф356（Manhole）；500×200、250×200（Water cover grate）
Piston stroke(㎜)	250
Power supply	380V±10%，50Hz
Overall dimension(L×W×H)(㎜)	1600×1000×1730	1600×1000×1800
Weight(kg)	2500	4000

Q: What kind of oil is it in the oil filled pressure gauge?: Pressure meter which is filled with glycerin or silicone oil, and other can not, the general manufacturers are full of glycerol, because glycerol is cheaper, but the temperature of glycerol is relatively large, good point is filled with silicone oil.

Q: What does "MPa" on the pressure gauge mean?: Commonly used in engineering is MPa (MPa): 1MPa=1000000Pa.

Q: Cutting acetylene bottles on how there are 2 pressure gauges, the general number of suitable adjustment: One is the pressure in the bottle and the other is the pressure that comes out. It depends on the thickness of the material you cut

Q: The difference between yn and YTN pressure gauges: But each company provides the model is not the same, the functions are the same.

Q: What is the maximum working pressure 6Mpa? How much do you want to fit the pressure gauge?: ~15mpa, according to the use of pressure 2~3 times the range, the use of reliable.

Q: How about the model of seismic pressure gauge?: There is a general proof letter "N"

Q: The working principle of the Bourdon tube pressure gauge: Bourdon tube pressure gauge is spring tube pressure gauge.Its working principle is that:The working principle of the spring tube type pressure gauge is spring tube; under the action of pressure, the free end displacement, the displacement of the rod drives the transmission amplification mechanism, the pointer deflection, and indicate the pressure value on the scale.Bourdon tube pressure gauge is mainly composed of a threaded joint holder, spring tube, rod, screw, gear sector, small gear, hairspring, pointer, upper and lower clamping plate, dial, case, shell etc..The function of each component in the drive amplifier mechanism:(L) pull rod - transfer the displacement of the free end of the spring tube to the sector gear;(2) the sector gear converts the line displacement to angular displacement and then passes it to the pinion and has an amplification effect;(3) the pinion drives the coaxial pointer to rotate, indicating the measured pressure on the dial;(4) - the gossamer fan gear and small gear tooth profile keep one-way contact clearance contact two gear, in order to reduce the return difference;(5) adjusting the screw - changing the position of the adjusting screw can change the length of the short arm of the sector gear, so as to change the drive ratio;(6) the upper and lower clamping plates fix the components together to form a set of transmission mechanisms.The drive mechanism, also known as the movement, is the heart of the pressure gauge. Its function is to enlarge the displacement of the free end of the spring tube so as to achieve the purpose of easy reading.

Q: How to use the car fuel pressure gauge?: A three - way connection must be made. The two heads are connected to the tubing, and the third head is attached to the pressure gauge so that the pressure in the tubing can be measured

Q: Please show the hydraulic gauge is what pressure? Know the hydraulic piston area with hydraulic products area, how to calculate the pressure?: Hydraulic gauge display is connected with the hydraulic oil pressure oil chamberGenerally international standards MPa, readings, if converted to our national standard pressure value multiplied by 10, for example, the pressure gauge shows 2MPa, converted to GB is 20 kilograms of pressure, that is, the 20 standard atmospheric pressureBar is a unit of pressure 1bar=100000, Pascal, and another one of our common KGF is almost 1:1.In China, we usually use the "kilogram" to describe the pressure of the gas (not the "Jin"). The unit of body is "kg/cm2", and a kilogram of pressure is one kilogram of force acting on one square.While in a foreign country commonly used unit is "Psi", the unit is "lb/in2", is "psi", this unit like Fahrenheit (F).In addition, there are pressure units such as Pa (Pascal, Newton, one square meter), KPa, Mpa, Bar, millimeter water column, millimeter mercury column, etc..1 bar (bar) =0.1 MPa (MPa) =100 kPa (KPa) =1.0197 kg / cm21 standard atmospheric pressure (ATM) =0.101325 MPa (MPa) =1.0333 bar (bar)Because the unit is very small difference, you are not engineering staff. So, you can remember that:1 bar (bar) =1 standard atmospheric pressure (ATM) =1 kg / cm2 =100 kPa (KPa) =0.1 MPa (MPa)

Q: Excuse me, where can I check the pressure gauge in Chongqing?: The local quality and Technical Supervision Bureau will be fine. You can also go to your district level Technical Supervision Bureau to do the verification, they are all legal measurement accreditation institutions.The price depends on what kind of pressure gauge you have, the vacuum meter or not, the range, the accuracy level, the medium, and so onIn fact, the test is more expensive than buying a new watch, but there is no way that the state has to check the mandatory measuring instruments, the new table should also be checked again, half a year.

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