YAW-300C fully automatic flexural and compressive testing machine

YAW-300C fully automatic flexural and compressive testing machineThis testing machine is used for compressive and flexural strength testing of cement mortar in accordance with the GB/T17671-1999 standard. It adopts a dual station testing space and has the advantages of dual-use, space saving, and simple operation.

YAW-300C fully automatic flexural and compressive testing machine

Scheme description:

2. Hydraulic system

The hydraulic oil in the oil tank is driven by a motor to enter the oil circuit through a high-pressure pump, and flows through a one-way valve, a high-pressure oil filter, a differential pressure valve group, and a servo valve before entering the oil cylinder. The computer sends control signals to the servo valve to control the opening and direction of the servo valve, thereby controlling the flow into the oil cylinder and achieving control of the constant velocity test force.

3. Control system

The system includes digital servo valves, high-precision sensors, controllers and software, with high control accuracy and good reliability. Meet the testing requirements of GB, ISO, ASTM and other standards for materials such as cement, mortar, concrete, etc.

The system has the following functions:

Equipped with force closed-loop control function;

Capable of achieving equal load rate loading or equal stress rate loading;

Using microcomputers to achieve electronic measurement and automatic completion of experiments;

The computer automatically calculates the results and prints a report.

The test report can be designed and exported to Excel by oneself

Figure 3: Test Report Interface

4 Safety protection devices

When the test force exceeds 3% of the test force, overload protection is activated and the oil pump motor is shut down.

3、 Main performance and technical indicators

3.1 Test force kN 300KN/10kN

3.2 Test force measurement range kN4% -100% FS

3.3 Relative error of test force indication ≤ ± 1% of indication

3.4 Test force resolution 0.01kN

3.5 Hydraulic pump rated pressure 25MPa

3.6 Loading rate 0.3KN/S to 10KN/S (compressive strength)

50N/s (flexural strength)

3.7 Loading speed error ± 5%

3.8 Rated flow rate of oil pump 1.52L/min

3.9 Dimensions of upper and lower pressure plates with a diameter of 155mm (compressive strength)

80X150mm (anti bending)

3.10 The distance between the upper and lower pressure plates is 260mm

3.11 Piston diameter φ 130mm (compressive strength)

Φ 50mm (anti bending)

3.12 Piston stroke 60mm

3.13 Motor power Three phase 0.75 kW

3.14 Overall dimensions of the host mm 820 × 450 × 1300mm

3.15 Weight500Kg