99mm Tomato Paste Can Bottom Ends: Specifications and Compatibility Guide
A 99mm tomato paste can bottom end is a metal closure intended for a can body with a compatible nominal 99 mm diameter. The size alone does not confirm fit: the end’s profile, curl, countersink, coating, sealing compound, and the can body’s flange and seaming setup also need to match. We recommend comparing a complete end drawing and physical samples with your can body and production process before placing a bulk order. This guide explains which specifications to request and how to assess compatibility for purchasing.
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Who This Guide Is For
This guide is for can manufacturers, food packers, packaging distributors, and sourcing teams evaluating bottom ends for tomato paste cans. It is especially useful when you are changing suppliers, developing a new can format, or checking whether an end described as “99mm” will run on existing equipment. The information is intended to support technical review, not replace confirmation by your packaging and seaming teams. Final suitability depends on the can design, filling and processing conditions, and the line setup.
What a 99mm Bottom End Does
A bottom end closes one end of a metal can body by joining its curled edge to the can body’s flange in a double seam. That seam helps form a closed package, but its performance depends on the matched end, body, seaming operation, and inspection controls. In a tomato paste application, the end is one part of the packaging system rather than a standalone component. Buyers should therefore confirm the end and body as a matched set.
Basic Size and Construction
“99mm” generally identifies the nominal diameter category, not every critical dimension of the component. The actual drawing may specify other measurements, including end height, curl dimensions, countersink depth, and profile. Materials may include tinplate or other canmaking metal formats, depending on the supplier’s product range and the packaging design. Ask the supplier to state the material and thickness on the product specification rather than inferring them from the nominal diameter.
Specifications to Confirm
When comparing offers, request a controlled drawing and specification sheet for the exact end being quoted. Check that the drawing identifies units, revision status, and the reference dimensions used for inspection. The table below lists items worth reviewing; it does not prescribe universal values because designs and seaming systems can differ. Ask your supplier to confirm the applicable values for your can body and line.
| Specification item | What to verify | Why it matters |
|---|---|---|
| Nominal diameter | 99 mm designation and the supplier’s drawing dimensions | Establishes the size category, but does not prove seam compatibility by itself. |
| End profile | Curl, countersink, and other profile dimensions in mm | Must correspond to the body flange and the seaming tooling. |
| Metal material and thickness | Material description and thickness in mm | Supports review of forming, handling, and application requirements. |
| Internal coating | Coating type and intended food-contact application | Needs to be assessed against the product, process, and applicable requirements. |
| Sealing compound | Compound specification and application details | Contributes to the sealing system and should suit the end and process. |
| Packaging and identification | Pack format, labels, batch identification, and handling guidance | Helps buyers manage receipt, storage, and traceability. |
How to Check Compatibility
Compatibility is a relationship between the end, can body, seaming equipment, and intended use. A 99 mm label is a useful first filter, but it is not a substitute for drawing review or a production trial. If you are replacing an existing item, compare the proposed end with the current approved specification and retain the current component for reference. If the package is new, involve the canmaker and equipment team early so that design and tooling questions can be resolved before production.
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Practical Selection Framework
- Confirm the package: Share the can body drawing, nominal diameter, body material details, and intended product application.
- Match the profile: Compare end dimensions and profile details with the body flange and seaming setup; do not rely on diameter alone.
- Review application requirements: Tell the supplier how the can will be filled, closed, stored, and processed, where applicable.
- Check materials and coatings: Request the specified metal, coating, and sealing compound information for technical and regulatory review.
- Evaluate samples: Conduct checks using your approved procedures and confirm seam results with the responsible packaging or quality team.
- Approve the controlled version: Record the drawing revision and agreed requirements before authorizing routine supply.
For an initial visual and dimensional screening, a buyer might inspect 10 ends from each of 3 sample packs, recording measurements in mm against the supplier’s drawing. This is a suggested purchasing check, not a universal sampling standard or proof of production capability. Your quality team should set acceptance criteria and any formal sampling plan. A production-line trial remains important when equipment compatibility or seam performance has not already been established.
Application Matching and Common Mistakes
Tomato paste packaging requirements can vary with the can format, product formulation, filling method, and any thermal or other processing steps. Share these conditions with the supplier so the proposed coating and sealing compound can be reviewed for the intended use. Do not assume that a coating suitable for one food product or process is automatically suitable for another. Where compliance documentation is required, identify the destination market and request documents applicable to the supplied material.
- Choosing by diameter only: Two ends with a 99 mm nominal designation may have different profiles or other dimensions.
- Overlooking seaming equipment: A component that appears to fit may still require review against the chuck, rolls, and operating setup.
- Leaving process details out of the inquiry: Without intended-use information, the supplier may not be able to assess coating and compound suitability.
- Skipping document control: Approving an obsolete drawing can create confusion during ordering or incoming inspection.
Pricing, MOQ, and Lead Time
Pricing for 99mm bottom ends depends on the confirmed specification, material, coating, order quantity, packing requirements, and delivery destination. Minimum order quantity and lead time are supplier- and project-specific, so they should be confirmed in a written quotation rather than assumed from the nominal size. If a new tool, profile, or qualification step is needed, ask whether it affects cost or schedule. For a useful comparison, request quotations against the same drawing revision and commercial terms.
Supplier Evaluation Checklist
A dependable sourcing decision should consider technical fit, communication, documentation, and order execution together. Ask whether the supplier can provide a drawing, identify the material and coating, explain sample availability, and clarify how product versions are controlled. Confirm how batches are identified and what information will accompany shipments. Evaluate answers against your own quality and purchasing requirements rather than relying on broad claims.
What to Include in Your RFQ
- Nominal 99 mm size and the current end or can body drawing, if available.
- Can body details, target application, and relevant filling or processing conditions.
- Required material, coating, sealing compound, and destination-market documentation.
- Estimated order quantity, preferred packing, delivery location, and requested schedule.
- Sample and trial requirements, inspection criteria, and drawing revision approval process.
How Wanhua Can Support Your Evaluation
Wanhua supplies packaging and printing products and can discuss 99mm tomato paste can bottom ends with B2B buyers. Share your drawing, application details, and target order information so our team can review the requested specification and identify points that need confirmation. Where necessary, ask about available samples, technical documents, customization options, MOQ, and lead time for your specific project. Product suitability should be confirmed against your can body, line, and applicable requirements before mass procurement.
Key Takeaways and Next Steps
- A 99 mm nominal diameter is a starting point, not a complete compatibility specification.
- Review the end profile, body flange, material, coating, sealing compound, and seaming setup together.
- Use the supplier’s controlled drawing and your own inspection criteria to assess samples; confirm suitability through the responsible technical team.
- Request a quotation against a shared specification to compare price, MOQ, lead time, and documentation accurately.
To evaluate a 99mm tomato paste can bottom end, begin by matching its drawing to your can body and production requirements, then review samples and confirm the proposed component through your normal approval process. Send Wanhua your specification, intended application, and purchasing requirements to start a focused technical and commercial discussion. This gives both sides a clear basis for confirming compatibility and preparing the next sourcing step.