I. DYE-3000 Electro-hydraulic Concrete Pressure Testing MachineMain Purpose

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

   The machine employs electric hydraulic loading, force measurement via sensors, digital force value display, and a printer for recording force data, with automatic conversion to compressive strength. It complies with the standard "Standard for Test Method of Mechanical Properties of Ordinary Concrete," featuring manual control of loading speed, a loading speed indicator, peak hold function, and overload protection. It is an essential testing and inspection device for construction, building materials, highway and bridge engineering units.

II. DYE-3000 Electro-hydraulic Concrete Pressure Testing MachineMain Technical Parameters

1.      Load:                  3000 kN

2. Accuracy of Indication:            Grade 1

3.          Resolution:        0.1 kN

4. Distance Between Compression Plates:        350 mm

5. Upper and Lower Pressure Plate Specifications:    300×250 mm

6. Piston Diameter*Stroke: Diameter 290×80 mm

7. Motor Power:             0.75 kW

8. Input Voltage:               380 V

9. Overall Dimensions:          880×480×1400 mm

10. Net Weight:                  950 kg

III. DYE-3000 Electro-hydraulic Concrete Pressure Testing MachineStructural Overview

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

1. Main Body Section

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

An adjustment screw is mounted on the upper beam, allowing the handwheel and nut screw to adjust the no-load height of the machine. The lower end of the screw is equipped with a spherical seat and the 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 self-adjusts for balance, ensuring the specimen remains level with both plates. The lower pressure plate has engraved lines for specimen positioning; specimens must align with these lines during testing. A dust cover is installed below the lower pressure plate to prevent or reduce dust entry into the oil cylinder during piston movement, which could damage the cylinder or oil seals. A sealing device between the piston and cylinder prevents oil leakage, though minor leakage may occur. An annular oil groove at the top of the cylinder, along with a drain channel, directs any leaked oil back to the main tank.