I. 200-ton/2000KN Commercial Concrete Test Block Compression Testing MachineMain Technical Parameters

1.      Load:                  2000KN

2. Indication Accuracy:             Grade 1

3.          Resolution:        0.1KN

4. Distance Between       Plates:  320mm

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

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

7. Motor Power:             0.75KW

8. Input Voltage:               380V

9. Overall Dimensions:      880×480×1400㎜

10. Net Weight:                  600kg

II. 200-ton/2000KN Commercial Concrete Test Block Compression Testing MachineStructure Overview

The testing machine mainly consists of three parts: the body, the hydraulic tank, and the force measuring instrument.

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 testing machine. The lower end of the screw is equipped with a ball 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 ball seat of the upper pressure plate can self-adjust for balance, keeping the specimen 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 be aligned 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 seal. A sealing device is installed between the piston and the oil cylinder to prevent oil leakage. However, if a small amount of oil still leaks during use, it is collected by the annular oil groove in the cylinder and discharged through the oil drain channel back into the main oil tank.

2. Hydraulic Section

The hydraulic tank of this testing machine mainly consists of an oil tank, oil pump, oil filter, motor, speed valve, and return oil valve. The oil pump is a direct-rotation axial five-pillar pump. During loading, the loading speed valve should be manually controlled to regulate the piston’s rising speed (this valve is integrated with the safety valve). During unloading, the return oil valve can be turned to allow the oil cylinder to descend slowly. 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.