NLD-3 type cement mortar fluidity tester electric jumping table wholesale price

Electric cement mortar flow tester wholesale price 》The fluidity test is the only instrument specified in this standard.
2. Main parameters of cement mortar fluidity tester
Total weight of vibration part: ..
Vibration drop distance.
Vibration frequency:
Number of vibrations: times< br/> Desktop parameters:
Material: Cast steel, working surface hard chromium plated
Diameter: +
3. Installation and debugging of cement mortar fluidity tester:
The instrument must be reliable Ground.
The instrument is fixed on the base with expansion bolts. The base of the instrument is made of poured concrete (or brick-concrete foundation), with the bottom dimensions being approximately and the height approximately. A washer should be filled between the base and the instrument frame (see Figure 8. Basic installation diagram). The level of the desktop can be adjusted by adjusting the height of the washer. After the instrument is installed, its desktop should be level when measured along two diameter directions at right angles to each other. After the jumping table is installed, use the fluidity standard sample (B) for verification. If the measured fluidity value differs from the given standard sample fluidity value within the specified range, the installation and use performance of the jumping table are qualified.
4. How to use the cement mortar fluidity tester:
The preparation and filling method of the sample shall be in accordance with the relevant provisions of B and B, and you may also refer to the appendix of this manual.
●Before use, please check the drop distance with a gauge.
●Insert the plug into the corresponding hole on the back of the counter and connect the counter to the power supply.
●If the jumping table has not been used within hours, it will be empty for one cycle.
5. Maintenance and maintenance of cement mortar fluidity tester:
●After use, the instrument should be wiped clean, the residual mortar around the instrument should be removed, and the push rod, tabletop and cam surface should be slightly lubricated with light oil . If not used for a long time, the instrument should be protected from dust and the controller should be placed in the packaging box.
●If the instrument does not count, please check whether the proximity switch is loose and whether the gap with the cam is ~. If there is deviation or looseness, please adjust the gap and tighten it.
6. Structure of cement mortar fluidity tester:
●Frame ●Proximity switch ●Motor ●Cam ●Bearing ●Push rod
●Disk table top ●Tam bar ●Mold set ●Cut Cone round mold ●Inspection regulations ●Controller
Appendix
●The preparation of mortar is carried out according to the relevant regulations of B (cement: standard sand: water.).
●Put the mixed cement mortar into the mold quickly in two layers. The first layer is installed to about two-thirds of the height of the truncated cone mold. Use a knife to mark the layers in two directions perpendicular to each other. Use a tamper to pound evenly from edge to center. Then install the second layer of mortar until it is approximately 10 inches higher than the truncated cone mold. Use a knife to divide the layers in two directions perpendicular to each other, and then use a tamping stick to tamp evenly from the edge to the center. The amount of tamping force should be just enough to fill the truncated cone mold with the mortar. For the tamping depth, the first layer should be tamped to half to one half of the height of the mortar, and the second layer should be tamped to no more than the compacted bottom surface. The sequence of tamping with tamping rods shall be as specified in Article B of "Method for Determination of Fluidity of Cement Mortar".
●After tamping, remove the mold cover, tilt the knife, and wipe off the glue sand above the truncated cone mold twice from the middle to the edge at a near-horizontal angle, and wipe off the glue that fell on the table sand. Lift the truncated cone mold vertically and gently remove it. Immediately press the start button of the counter to start the jumping table and complete a cycle of jumping.
●After the jump is completed, use a measuring caliper to measure the expanded diameter of the sand bottom surface in two directions that are perpendicular to each other, calculate the average value, take an integer, and express it in units. This average value is the fluidity of cement mortar.
●The test should be completed from the time when water is added to the mortar to the end of diameter measurement.