JENVISEN
JENVISEN
From raw tin-plate steel to a perfect finished cap — every stage of our manufacturing process is precision controlled.
Jenvisen Limited operates a complete, vertically integrated metallic bottle top manufacturing facility in the Luzira Industrial Area of Kampala, Uganda.
Every stage of production — from raw material inspection to printing, pressing, lining, quality control and packing — takes place inside our factory. This means full control over quality, lead times, and costs.
Our high-speed press lines run at 1,200 strokes per minute. Our in-house lithography plant prints on pre-cut steel sheets with up to 6-color precision. Our automated inspection systems guarantee zero defective caps reach our customers.
Request a QuoteEight precision-controlled stages turn raw steel into a perfect metallic bottle top.
Food-grade tin-plate steel coils arrive from certified suppliers. Each batch is inspected for coating weight, hardness, and dimensional accuracy before being accepted into the production store.
Steel coils are precision-cut into flat sheets of the exact size required for the lithography printing process. Sheet thickness is verified at this stage.
Flat steel sheets are fed through our offset lithography printing press. Up to 6 spot or process colors are applied in sequence. UV varnish is applied on the final pass and oven-cured for durability and gloss.
Every printed sheet is visually and optically inspected before proceeding to pressing. Any sheet with color misregistration, coating defects, or dimensional issues is removed from the batch.
Inspected printed sheets are fed into our high-speed rotary presses which stamp out individual bottle tops at 1,200 strokes per minute. The press simultaneously forms the flute (corrugated edge) of each cap.
Each pressed cap passes through our compound lining machine where a precise measured amount of food-safe PVC or PU compound is applied to the inner face. The compound forms the seal that prevents gas and liquid escape when the cap is applied to a bottle.
Lined caps pass through automated optical inspection equipment which checks for dimensional accuracy, lining integrity, printing consistency, and cap geometry. Any defective cap is ejected from the line automatically.
Approved caps are automatically counted and packed into export cartons in lots of 1,000, 2,500, or 5,000 caps. Cartons are sealed, labeled with batch codes, and palletized ready for dispatch.
Every incoming steel coil batch is tested for tin coating weight, base metal hardness, and dimensional tolerances before entering production.
Automated cameras inspect every cap for printing errors, flute geometry defects, and lining coverage. Defective caps are automatically rejected.
Sample caps from each production batch are tested on actual bottles using standard bottle cappers to verify seal integrity and closure torque.
Every dispatch is accompanied by a batch certificate confirming it has passed all internal quality standards and is compliant with EAC and UNBS specifications.
