The sand strength testing machine is mainly used to determine the type (core) sand, at room temperature (or hot) compressive, shear, bending, tensile and cleavage strength and the actual force value of the output, can also be used for ceramics, cement and other industries to determine the strength of other materials, manually loaded system, high-precision force transducer. Complete the test, microcomputer data processing, display, storage of the whole process, printing (optional). Can be widely used in scientific research, teaching, production.

I. the characteristics of the strength meter

1.Manual loading

Combined with domestic and foreign instruments as well as the characteristics of our SWG, SWX and SWY series of strength machine products, vertical loading is adopted when doing strength test of sand (foreign products are mostly vertical), which overcomes the static friction and the testing error caused by self-weight when the original horizontal machine is unloaded;

Wet sand low wet compression and wet shear strength test using vertical loading, because of the low strength of sand samples, it is not suitable for direct contact with the sand samples by hand, using SAC sample making machine equipped with a special opening and closing punch with a piece of tray to make samples, and directly placed on the vertical loading table, so as to avoid the damage of the sand samples in the course of the operation and the impact on the test results;

For high strength compression test (e.g. resin sand specimen), there is no need for other high pressure accessories and pressurizing equipment.

2. Cross-head fixture mechanism

The instrument adopts the crosshead displacement trimmer, which is convenient for placing the test samples and reduces the no-load time. The application of the crosshead fixture system improves the testing accuracy and makes the operation very convenient.

3. High Accuracy

The instrument adopts numerical control mechanical loading, avoiding the measurement error caused by the hydraulic loading method due to leakage and temperature difference caused by the viscosity change of hydraulic oil. The use of high-precision S-type force transducer and 4 ½ bit A/D data acquisition system can be applied to fast data acquisition rate, the true reflection of the peak data when the specimen damage. Further improve the accuracy of the system.

4. Data storage and power-down protection function

This instrument can be in the case of power off or power outage, the collected data will be completely saved in the computer system for further display and printout.

5. Storage and printing function (optional)

The instrument has strong printing function. It can output the collected and stored data in the form of data through the keyboard command. For two groups and more than two groups of data, the average value can be printed.

II. the main technical indicators of the strength meter

1. Compressive strength: 0~3Mpa (can be expanded to 6Mpa)

2. Tensile strength: 0 ~ 6 Mpa (can be expanded to 12Mpa)

3. Shear strength: 0 ~ 1.2 Mpa (can be expanded to 2.4Mpa)

4. Flexural strength: 0 ~ 60MPa (can be expanded to 120Mpa)

5. Display value accuracy: ±1.5%FS

6.Working voltage: AC 220V±10%,50Hz

7. Use of the environment: greenhouse, relative humidity ≤ 90%