Molded Pulp Vacuum Pump & System Selection: Did You Pick the Right Dehydration Power Source?

Molded pulp wet-forming depends on vacuum filtration for dewatering, and vacuum system selection directly determines forming speed, wall-thickness uniformity, and energy consumption. The right selection both assures quality and cuts energy use.

Scenario: Three Misconceptions in Vacuum System Selection

Three misconceptions commonly arise in vacuum system selection:

Pain Points

• Insufficient vacuum leads to slow filtration and loose forming with uneven wall thickness;
• Oversized selection wastes energy and raises running costs;
• Poor piping design causes large vacuum losses and uneven suction across mold positions.

Solution: Three Key Points for Selection

Vacuum pump and system selection has three key points:

1. Select the pump by air-pumping volume. Calculate the required pumping volume from mold count and cavity area, then match the pump specification.

2. Match the vacuum level. Choose the right vacuum level for the forming process—too high wastes energy, too low gives poor forming.

3. Balanced piping design. Optimize main-pipe and branch layout to keep suction even across all mold positions.

Result: Both Quality and Energy Optimized

With selection done right, forming quality stays stable and consistent across mold positions, while vacuum energy is controlled and running costs fall.