Medium interference design — exceptional wiping action along the cartridge's interior diameter. Conforms perfectly to cartridge contour — complete material utilization, eliminates waste. Consistent material flow until the final drop — manufactured to exacting specifications across aerospace, automotive, electronics, and precision manufacturing.

The flagship Semco® Black Plunger features medium interference design — providing exceptional wiping action along the cartridge's interior diameter. The medium interference design creates an optimized, precision-calibrated fit within the cartridge — delivering exceptional wiping action across the full interior diameter for complete material utilization and consistent material flow until the final drop. The flagship Black Plunger represents the pinnacle of dispensing technology — available in three distinct styles, each meticulously engineered with unique functional characteristics to meet your specific application requirements.

The medium interference design provides exceptional wiping action along the cartridge's interior diameter — a precision-calibrated performance advantage for 2.5 oz, 6 oz, 8 oz, and 12 oz Semco® cartridge dispensing. The exceptional wiping action maintains consistent contact across the full interior diameter — ensuring complete material utilization, eliminating waste, and delivering consistent material flow until the final drop. The medium interference design is specifically calibrated to deliver optimal wiping performance — balancing smooth operation with thorough interior contact for maximum dispensing efficiency.

The flagship Semco® Black Plunger conforms perfectly to the cartridge contour — ensuring complete material utilization by conforming perfectly to the cartridge contour, eliminating waste, and delivering consistent material flow until the final drop. Manufactured to exacting specifications ensuring a perfect fit with cartridge contours — the precision engineering guarantees complete material dispensing from every 2.5 oz, 6 oz, 8 oz, and 12 oz Semco® cartridge. The perfect contour conformance combined with medium interference design delivers consistent material flow until the final drop — maximizing yield and eliminating costly material waste.

Precision engineering translates to reduced waste, improved application consistency, and enhanced operational efficiency across aerospace, automotive, electronics, and other precision manufacturing environments. The perfect fit with cartridge contours for complete material dispensing — combined with exceptional wiping action along the interior diameter — guarantees consistent material flow until the final drop. In precision manufacturing environments, reduced waste and improved application consistency translate directly to significant measurable cost savings and enhanced operational efficiency across every production cycle.

All plunger variants are manufactured to exacting specifications — ensuring a perfect fit with cartridge contours for complete material dispensing. This precision engineering translates to reduced waste, improved application consistency, and enhanced operational efficiency across aerospace, automotive, electronics, and other precision manufacturing environments. The Semco® Black Plunger delivers the exacting standards required for critical applications — trusted by professionals demanding superior dispensing performance, consistent material flow, and complete material utilization in every operation.

Specifically engineered to seamlessly integrate with 2.5 oz, 6 oz, 8 oz, and 12 oz Semco® cartridges — guaranteeing optimal performance in your dispensing system: