Do wall refractory and non-ceramic application presses consume a lot of air?

Clarify the drive method of the press.

The mainstream forming presses for wall refractory materials (such as sintered bricks and firebricks) and non-ceramic materials (such as carbon products and composite powders) useHydraulic driveSuch equipment primarily consumes electrical energy rather than compressed air directly. When “air consumption” is mentioned, it typically refers to two scenarios: first, light-load or small specialized devices that use pneumatic presses; and second, the air circuits relied upon by auxiliary cylinders, directional control valves, fixtures, and automatic control systems in hydraulic main units.

Core Factors Affecting Air Consumption of Pneumatic Presses

• Bore and Stroke DisplacementThe higher the forming pressure required, the larger the piston area needed; consequently, the volume of air displaced per stroke increases, and air consumption is directly proportional to the square of the cylinder bore and the stroke length.
• Work Stress and Cycle FrequencyTypical forming air pressure is usually maintained between 0.6 and 0.8 MPa. The more frequent the pressing cycles, the more linearly the total air consumption per unit time increases; high‑frequency continuous operation significantly amplifies overall air usage.
• Sealed Condition and Piping LossesWorn guide sleeves or minor leaks at joints can cause continuous gas leakage. In equipment that lacks regular inspections, hidden leaks often account for 10% to 20% of total gas consumption.

The impact of system configuration on actual gas consumption performance

The stability of the air supply at the industrial site directly determines the compressor’s operational efficiency. Large molding units typically require adequately sized air receivers to smooth out instantaneous peak demand, and should be equipped with refrigerated or desiccant dryers to prevent condensate from entering precision valve assemblies and causing jamming. Some mature models employDouble-acting cylinder differential circuit or exhaust-reuse design, by diverting the residual high-pressure gas from the return stroke to other workstations, the effective air intake requirement can be directly reduced.

Assessment and Optimization Recommendations

When calculating the gas consumption of a single piece of equipment, perform a theoretical calculation based on the cylinder’s geometric dimensions and operating pressure, then add the actual cycle time to determine the hourly gas consumption. During the selection phase, it is advisable to allow for a reasonable margin to accommodate load fluctuations. Daily management should focus on three areas: conduct regular leak‑tightness tests and seal any leaks, prioritize low‑resistance fast exhaust valves, and precisely adjust the pressure regulator setpoints according to actual process requirements. For high‑throughput production lines with multiple machines operating in parallel, using variable‑frequency air compressor units together with intelligent coordinated control strategies can significantly reduce overall energy consumption caused by ineffective loading.