I. 200-ton Concrete Pressure Machine Constant Loading Pressure Test Block Pressure Testing MachineMain Purpose

   This testing machine is used to determine the compressive strength of building materials such as bricks, stones, and concrete.

   This testing machine complies with the standard "Standard for Test Methods of Mechanical Properties of Ordinary Concrete." It features computer-controlled loading speed, a loading speed indicator, peak hold, and overload protection functions. It is an essential testing and inspection equipment for construction, building materials, highway bridges, and other engineering units.

    II. 200-ton Concrete Pressure Machine Constant Loading Pressure Test Block Pressure Testing MachineMain Technical Parameters

1.    Load:                 2000 kN

2. Accuracy of Indication:            Grade 1

3.           Resolution:        0.1 kN

4. Distance Between Pressure Plates:   320 mm

5. Upper and Lower Pressure Plate Specifications:    220 × 250 mm

6. Piston Diameter *    Stroke: Diameter 250 × 40 mm

7. Motor Power:             0.75 kW

8. Input Voltage:               380 V

9. Overall Dimensions:          880 × 480 × 1400 mm

10. Net Weight:                  850 kg

III. 200-ton Concrete Pressure Machine Constant Loading Pressure Test Block Pressure Testing MachineStructure Overview

The testing machine mainly consists of three parts: the body, solenoid valves, and the computer control panel.

1. Body Section

The body of the testing machine is connected by four columns linking the cylinder and the upper beam.

On the upper beam of the testing machine, an adjustment screw, a large handwheel, and a nut screw are installed to adjust the no-load height of the machine. The lower end of the screw is equipped with a spherical seat and an upper pressure plate. The lower pressure plate is placed on the piston of the oil cylinder. When the specimen contacts the upper pressure plate, the spherical seat of the upper pressure plate can self-adjust for balance, ensuring the specimen remains level with the upper and lower pressure plates. The lower pressure plate is engraved with positioning lines for the specimen. During testing, the specimen must align with these lines. A dust cover is installed below the lower pressure plate to prevent or reduce dust from entering the oil cylinder during piston movement, which could damage the cylinder or oil seals. A sealing device is installed between the piston and the oil cylinder to prevent oil leakage. However, if a minimal amount of oil leaks during use, an annular oil groove at the top of the cylinder and an oil discharge channel will direct the oil back to the main tank.

2. Hydraulic Section

     The main components of the machine's hydraulic system include the oil tank, oil pump, oil filter, motor, and solenoid valves. The oil pump is a direct-drive axial five-piston pump. The safety valve has been pre-set to an appropriate position before leaving the factory. Under normal use, users should not adjust the safety valve.