1、Mechanical Structure Principle

The main part of this equipment consists of a height-adjustable support frame [composed of a base, lead screws, and a moving crossbeam (lower jaw holder)] and a working frame [composed of a working cylinder, piston, table plate, support frame, and upper crossbeam (upper jaw holder)]. Its working principle is as follows: high-pressure oil is supplied by a high-pressure oil pump to the working cylinder, and through the movement of the piston, the table plate and upper crossbeam (upper jaw holder) are pushed upward to perform tensile or compression tests on the specimen. Tensile tests are conducted between the upper crossbeam and the moving crossbeam of the main unit, while compression tests are carried out between the table plate and the moving crossbeam of the main unit. The adjustment of the test space is achieved by driving the dual lead screws to rotate synchronously via the drive mechanism (lifting motor, sprocket, chain, etc.), which moves the crossbeam up or down.

    2. Electrical Principle

This equipment operates on a three-phase 380V or two-phase 220V, 50Hz AC power supply. The main circuit includes the oil pump motor and the lifting motor. Fuses are installed in both the main circuit and the control circuit to prevent excessive current, and thermal relays are connected in series before the oil pump motor and lifting motor to protect against motor overload.

    3. Unpacking and Acceptance

After unpacking, please check the quantity and completeness of the equipment and accessories according to the order contract and packing list. If any shortages or damages are found, please notify our company as soon as possible for timely resolution.

   4、Pre-installation Preparation

The testing machine should be installed in a clean, dry, vibration-free room with an ambient temperature of 10°C to 35°C. Sufficient space (≥0.7m) should be left around the testing machine for testing and maintenance purposes.

The main body of the testing machine and the control cabinet should be installed on a concrete foundation. The foundation dimensions should comply with the outline and foundation diagram, with provisions for anchor screws and other electrical installation conduits. The upper surface of the foundation should be leveled using a spirit level.