Nick Machinery's waste paper baler adopts hydraulic oil circuit power system, which improves the Bale Press efficiency. It has the characteristics of fast Bale Press speed, high efficiency, energy saving and electricity saving, and stable performance.
The property that the liquid of the waste paper baler may be reduced by pressure is called the compressibility of the liquid. The hydraulic oil is compressible, that is, the volume will change after being compressed. The hydraulic oil volume decreases when the common pressure of the waste paper baler liquid increases, and vice versa. For the bulk modulus of elasticity of petroleum-based hydraulic oil without mixing with air. Its rigidity is much greater than that of air, that is, its compression coefficient is very small. For this reason, in engineering, it can be considered that the hydraulic oil of the waste paper baler is incompressible. The reason why the actuator of hydraulic equipment works smoothly and has low noise is because its compression coefficient is extremely small and it has great rigidity.
If there is air dissolved in the hydraulic oil, when the oil flows through a narrow gap such as a throttle or a vacuum zone such as a suction port of a pump, the pressure of the oil decreases rapidly due to a sudden increase in flow rate or insufficient oil supply. The air that has been dissolved in the oil separates out to form bubbles; in addition, a certain amount of air is always mixed in the hydraulic system of the waste paper baler. Due to the high compressibility of the air, the bulk elastic modulus of the oil with air inside Will be significantly reduced, which will cause the actuator in the hydraulic system to crawl or tremble, and affect the smoothness of the actuator. For this reason, it is necessary to ensure good sealing performance of the hydraulic system of the waste paper baler, and set an exhaust device at the uppermost position of the hydraulic cylinder to remove air in time to avoid mixing a large amount of air in the oil and affecting the performance of the hydraulic system.