Cangzhou Xinglong Engineering Instrument Co

Electro-hydraulic cement flexural and compressive testing machine, press testing machine wholesale price
Product Introduction Electro-hydraulic digital display cement flexural and compressive testing machine is used in conjunction with the concrete pressure testing machine, cement flexural testing machine The compression testing machine complies with the B standard for compressive and flexural testing of cement mortar strength. It adopts the integration of electricity and hydraulics. It has the advantages of one machine for single use, space saving, and simple operation.
Technical parameters:
Maximum test force ()
Test force accuracy (%)
Maximum distance between upper and lower pressure plates ()
Pressure plate size ()
/> Maximum stroke of piston ()
Overall dimensions of main machine ()
3. Structure of fully automatic cement flexural and compressive testing machine
The flexural and compressive testing machine adopts hydraulic transmission and the pressure sensor measures Power, electricity and hydraulic integrated action. It mainly consists of the main machine.
The main machine is composed of upper beam, sensor, pressure block, upper standard seat, column, movable standard seat, clamp seat, guide seat plate, table plate, upper and lower limit switches, frame, etc.
The hydraulic part consists of an oil cylinder (placed inside the frame), a fuel tank, an oil circuit board, an electromagnetic reversing valve, an oil delivery valve, a relief valve, a gear pump, an electric motor, etc.
4. Inspection before use of the CNC fully automatic cement flexural and compressive testing machine
Check whether the top surface of the pressure block is in contact with the spherical surface at the bottom of the sensor. If there is no contact, the user can adjust only the pressure on the pressure block. bolt.
. Check whether the hydraulic oil in the tank reaches the height of the oil mark hole mirror.
. Turn on the power, press the pump start button, and check whether the motor is rotating. The electrical connection should be reliably grounded.
5. Operating Procedures for Folding and Compression Testing Machine
Folding Test: During the bending test, pull out the pin on the upper pressing block and remove the upper pressing block.
The flexural strength is calculated according to the formula Rb
The flexural strength
The flexural strength (read on the digital display window)
The span between the supports ()
b Specimen width
Specimen height
Compression test: Loosen the butterfly screws, move the lower movable standard seat to both sides of the clamp seat, and then tighten the butterfly screws. Insert the bottom hole of the ball seat into the pin on the fixture seat, and then place the lower pressure block on the concave surface of the ball seat. Then, remove the upper standard seat and install it into the upper pressure block.
The compressive strength is calculated according to the formula R
Compressive strength
Pressure resistance (read on the digital display window)
Pressure area of the specimen
, bending resistance The test process of the compression testing machine is as follows:
Turn on the power of the bending and compression testing machine, press the pump start button and the rise button, and after opening the oil delivery valve, if the motor rotates but the piston does not rise, confirm other actions and wiring If correct, adjust the power supplies to each other.
, press the clear button, turn the oil delivery valve knob clockwise, and close the oil delivery valve.
Press the pump button of the flexural and compressive testing machine.
.. Press the upward button of the flexural and compressive testing machine (just click once). Then slowly turn the oil delivery valve knob counterclockwise, and the piston will rise slowly. The rising speed of the piston can be determined by the opening of the oil delivery valve. When approaching the test block, the piston rising speed should be adjusted to the required speed. After the test block is broken, quickly press the lowering button to lower the piston to the required position and close the oil delivery valve.
, record the test block breaking data (displayed in the force value window of the display).
Repeat the steps and continue to the next test.
Press the pump off button to turn off the main power supply and the test is over.
Pay attention to the following two points for the flexural and compressive testing machine:
In case of emergency, press the pump off button to stop the piston lifting action.
.During testing, calibration or debugging, it is strictly prohibited to place hands or other parts of the body between any moving parts to prevent accidents.
6. Inspection and calibration of CNC fully-automatic cement flexural and compressive testing machines
Inspection of flexural and compressive testing machines
The flexural and compressive testing machines are calibrated once a year, and are carried out by the local The legal metrology department designated by the Bureau of Economic Planning and Inspection shall be responsible for the measurement. When the machine is in use, except for the legal metrology department, users are not allowed to enter the calibration state at will, otherwise the internal data will be confused and the machine will not be able to be used normally.
7. Maintenance of the bending and compression testing machine
. Check regularly whether the oil content in the oil tank of the bending and compression testing machine reaches the height of the oil mark hole mirror (the oil mark hole mirror is on the back of the testing machine). Change the hydraulic oil once a year. When changing the oil, open the right cover. When the ambient temperature is ℃, use B (equivalent to #) mechanical oil. When the ambient temperature is ℃, use B (equivalent to #) mechanical oil.
. Regularly check whether the connections of all parts of the oil circuit system of the anti-flexion and compression testing machine are firm to prevent oil leakage. Pay attention to keeping the hydraulic system clean and preventing debris from being mixed in.
. The pressure of the relief valve of the bending and compression testing machine has been set before leaving the factory, and the user is not allowed to change it at will.
. If the force value accuracy is out of tolerance, you can debug it according to Seven.
. The upper and lower limit switches of the bending and compression testing machine have been adjusted before leaving the factory. Please do not change the positions at will.
. If there is abnormal noise or the readings are obviously out of tolerance and cannot be debugged, please contact our company in time.
. Non-professionals are not allowed to disassemble the mechanical parts and electrical boxes.