Intermittent vs Continuous Motion Cartoning: What You Can Specify Today, and What Only Vendors Can Tell You

Check your product and carton against the documented intermittent capability before you ask for a price

Cartoner suppliers select on product type, carton style and sealing method before speed is discussed, so an unstated format is the most expensive omission in an RFQ¹⁹.

The documented intermittent-motion capability gives you a concrete starting point: an intermittent auto-load cartoner is listed for flow-wrapped products, bag-in-box, frozen foods, baked goods, snack foods, dairy, frozen novelties, personal care, consumer goods, beverage and pharmaceutical products⁹. If your product and carton are not on that list, the format question is open, not answered.

• ✓Confirm your product form against the documented intermittent list: flow-wrapped products, bag-in-box, frozen foods, baked goods, snacks, dairy, frozen novelties, personal care, consumer goods, beverage, pharmaceutical
• ✓State product type in the questionnaire's own terms: blister pack, bottle, tube, pouch, sachet or tray, with a photo and dimensions
• ✓State carton style as reverse tuck, straight tuck, auto-lock bottom or glue seal, and send a sample blank
• ✓State sealing method as tuck-in, glue or combination
• ✓State certification requirements: CE, GMP, FDA contact materials, pharmaceutical serialization
• ✓Ask the vendor to confirm in writing whether your product and carton fall inside or outside the machine's documented range

Rule out quotes whose carton dimensions or closure fall outside the documented envelope

Carton opening length, width and depth are fixed machine limits, and the closure method is a separate mechanical option, so both have to be matched before price is worth comparing⁹.

The documented intermittent envelope is 25-240 mm opening length, 20-100 mm opening width and 100-305 mm carton depth, with glue or tablock tuck closure⁹. A second intermittent end-load cartoner is offered in 6", 9" or 12" pitch, which is a different way of expressing the same size constraint¹⁸.

Ask each vendor to state the continuous-motion envelope in the same three dimensions and the same closure terms, so the two quotes sit on one page. If a vendor answers in pitch only, ask for the millimetre opening range as well; the two units are not interchangeable without the carton blank in hand.

Set the speed you can hold the intermittent machine to, and treat continuous-motion speed as unverified

The only cartoning speed figure in this evidence set is an intermittent one: the Criterion CLI-100 is offered at production speeds up to 200 cartons per minute in 6", 9" or 12" pitch¹⁸.

That is one supplier's model specification, not a ceiling for intermittent cartoning generally, and the sources do not state how the rating varies with pitch or carton size¹⁸. No source states a continuous-motion cartoner speed at all, so you cannot compare the two motion types on speed from published data¹⁸.

Put the question in the RFQ in cartons per minute for your carton, and ask for the tested speed on your product rather than the rated maximum.

Demand a timed SKU switch, using tool-less changeover and parts commonality as the floor

The documented intermittent cartoner has repeatable, tool-less changeovers, and the Criterion line is stated to share 60-70% common parts across machines¹⁸. That commonality is where changeover cost actually lands: fewer spare parts to stock and less operator training when moving between machines¹⁸.

No source gives a changeover time for a cartoning machine, and the under-15-minute SKU switch figure in the evidence concerns case erecting machines, not cartoners¹⁰. Ask both vendors for a timed changeover on your own carton sizes, witnessed or video-recorded, and write the number into the acceptance criteria.

Build both quotes on the same five-year total cost of ownership, not two purchase prices

Purchase price is one line in packaging equipment total cost of ownership; a full picture includes upfront costs, consumables, spare parts, scheduled maintenance, energy, downtime cost, software and support, and end-of-life²³.

Ask each vendor for a five-year TCO estimate rather than a purchase quote, because two machines with similar sticker prices can diverge once consumables and service contracts are counted²³.

Automated, high-speed or multi-functional packaging machines are stated to cost 20-35% more than standard systems, which is the only capital-premium figure in this evidence set and it concerns food packaging machines generally, not cartoners¹¹.

No source splits cartoner capital, tooling, maintenance, energy or spare-parts cost by motion type, so the cost comparison has to be built from the vendors' own TCO submissions²³¹¹.

Treat the volume case as a vendor calculation, not a published breakeven

A cartoner supplier positions its mid-speed Alterion model for customers who could not justify the return on investment of the higher-speed Criterion machines at lower production volumes with different automation needs²⁹.

That establishes that a volume threshold exists in the supplier's own thinking, but no source gives its value, and no numeric breakeven between intermittent and continuous cartoning appears anywhere in this evidence set²⁹.

Ask each vendor to run the ROI at your actual annual volume and carton count, and to show the assumptions behind it. A threshold you cannot see the arithmetic for is not a threshold you can plan against.

Write the delivery and commissioning schedule with the custom-tooling lead time separated out

Standard packaging machine configurations typically take 4-12 weeks from order to delivery, with additional time for on-site installation, calibration and operator training. Heavily customized machines or those needing integration with existing lines can take considerably longer²¹.

That figure concerns form-fill-seal machines, not cartoners, so treat it as a planning reference rather than a cartoner lead time²¹. One cartoner supplier states that standard options lead to quick quotes and short delivery times, without giving a number²⁹.

Ask each vendor to quote three separate lead times in writing: standard build, custom format tooling, and line integration and commissioning.

Fix the certification and inspection requirements in the specification

Certification requirements are a buyer-specified input on the cartoner questionnaire, and no source ties any certification, validation or inspection requirement to the choice of motion type¹⁹. Put them in the specification once, so both vendors answer the same list.

• ✓Require the vendor to state which certifications the machine will carry: CE, GMP, FDA contact materials, pharmaceutical serialization
• ✓Ask for the validation documentation package you need, and confirm the vendor's scope for it
• ✓If you need in-line inspection, ask what detection performance the vendor guarantees on your carton and product
• ✓Confirm the format-part set and price for each carton size you will run

Where the sources disagree or fall silent on the figures the comparison turns on

The comparison you were asked to make cannot be completed from published data, because the continuous-motion side is absent from every source in this set. The table below shows each item the decision turns on, what is documented, and what to do about the gap before you sign.

What to confirm before you order

• Ask the supplier for model-specific evidence and record the condition that would change your buying decision.
• Ask the supplier for model-specific evidence and record the condition that would change your buying decision.
• Ask the supplier for model-specific evidence and record the condition that would change your buying decision.
• Ask the supplier for model-specific evidence and record the condition that would change your buying decision.
• Ask the supplier for model-specific evidence and record the condition that would change your buying decision.
• Ask the supplier for model-specific evidence and record the condition that would change your buying decision.
• Ask the supplier for model-specific evidence and record the condition that would change your buying decision.
• Ask the supplier for model-specific evidence and record the condition that would change your buying decision.