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 utilizes microcomputer control and features control modes such as constant test force, constant stress, and a dual-station test space with test force holding. 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, high reliability, and user-friendly 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 a 0.1/1000 frame level to measure the plane of the lower platen. If the horizontal or vertical level exceeds the specified limit, correct it by adding shims under the base plate, then tighten the anchor bolts.

Next, connect the power cable. The machine's electrical system 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 environment with uniform temperature, free from vibrations and corrosive gases.

2. Keep the testing machine clean. Regularly oil parts without protective coatings to prevent rust.

3. Change the oil every six months to a year. During oil change, 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, wipe the tank bottom with a cloth, and then add clean hydraulic oil. If the hydraulic oil appears severely contaminated and unusable during regular use, replace it immediately to prevent accelerated wear of hydraulic components and potential impact on the accuracy of force values.

Hydraulic oil specifications are recommended as follows based on ambient temperature:

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

(2) When 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.