Microcomputer Servo Computer-Controlled Fully Automatic Cement Flexural and Compression Integrated Testing Machine

       I. Purpose

    This machine is manufactured in accordance with the test requirements of JC/T960-2022 "Automatic Pressure Testing Machine for Cement Mortar Strength". It adopts microcomputer control and features control modes such as constant test force, constant stress, and test force holding with a dual-station test space. The computer system enables functions including on-screen display of test data and curves, disk storage, and database management. When connected to a printer, it can output test data reports. The product is characterized by high precision, superior performance, high reliability, and ease of operation.

     II. Main Technical Parameters

Test Force Measurement Range: 0-300KN

Applied Test Force Error: ±0.5%

Input Voltage: 380V

Motor Power: 0.75KW

Overall Dimensions (mm): 1220*510*1280mm

Host Weight: 300kg

II. Installation of the Testing Machine

During installation, ensure the testing machine is level (levelness≤0.2/1000). Use a0.1/1000 frame level to measure the plane of the lower platen. If the horizontal or vertical level exceeds the specified value, correct it by adding shims under the base plate, then tighten the anchor bolts.

Then connect the power cord. The electrical system of this machine should have a grounding safety protection device. The power voltage fluctuation should not exceed ±10% of the rated value.

III. Maintenance and Care

1. The testing machine should be installed in a clean, dry, uniformly temperature-controlled environment, free from vibrations and corrosive gases.

2. Keep the testing machine clean. Unprotected parts should be regularly oiled to prevent rust.

3. Change the oil every six months to one year. When changing the oil, thoroughly clean the oil tank and oil filter. To clean the oil tank, pour kerosene into the tank, then drain it. Repeat this several times until clean, and wipe the bottom of the tank with a towel. Then add clean hydraulic oil. If the hydraulic oil is found to be severely contaminated and unusable during normal use, replace it immediately. Otherwise, it may accelerate wear of hydraulic components and even affect the accuracy of force values.

Recommended hydraulic oil specifications based on ambient temperature:

（1）When the ambient temperature is 10-20°C, use GB-443-84N46# (equivalent to 30# mechanical oil).

（2）When the ambient temperature is 20-30°C, use GB-443-84N86# (equivalent to 40# mechanical oil).

4. When not in use, cover the machine with a plastic cover.