MAP Cup Filling Machine for Fresh Dips, Spreads and Dairy Cups
The SDH-R fills pre-formed cups at ±0.5% accuracy, flushes the headspace with nitrogen and heat-seals a membrane at up to 30 cups per minute, cutting residual oxygen to 0.3-0.4% for product-dependent refrigerated shelf life of 30-45+ days.
A MAP cup filling machine fills a cup, replaces the air in its headspace with nitrogen and heat-seals a barrier film before oxygen can return. Our SDH-R does this in one rotary pass at up to 30 cups per minute (18-25 real-world), fills 50-500 g at ±0.5% accuracy, and its optional MAP system cuts residual oxygen to 0.3-0.4%, which can extend refrigerated shelf life from about 7-10 days to 30-45+ days, depending on the product.
- MAP method
- Optional nitrogen flush of the cup headspace
- Residual oxygen
- 0.3-0.4% with the container MAP system
- Typical shelf life
- ~7-10 days to 30-45+ days refrigerated (product-dependent)
- Output
- Up to 30 CPM dry cycle (18-25 CPM real-world)
- Fill range & accuracy
- 50-500 g at ±0.5% (servo-driven volumetric piston)
- Closure
- Roll-film heat-sealed membrane (tamper-evident); optional plastic lid
- Price
- From $45,000 USD single-filler; MAP priced as an option
What Is a MAP Cup Filling Machine?
A MAP cup filling machine is a cup filler and sealer that replaces the oxygen-rich air above the product with an inert gas, usually nitrogen, before the lidding film is heat-sealed. Ordinary air is about 21% oxygen. Oxygen trapped in the headspace drives browning, rancid flavors and surface mold, so removing most of it at sealing slows the changes that end a fresh dip's shelf life.
Our SDH-R is a fully automatic rotary machine that denests pre-formed cups, fills up to three components, seals a roll-film membrane and adds nitrogen MAP flushing as an option, all in one pass. With MAP specified, it works as a modified atmosphere packaging machine for cups rather than a plain filler. This page covers the equipment and how to specify it. For the food-science background, read our guide to MAP nitrogen flushing and dip shelf life.
How Gas Flush Cup Filling Works Before the Seal
Gas flush cup filling is a timing problem. Nitrogen has to displace the air in the headspace and the film has to close over it before room air mixes back in. On a rotary machine the sequence is fixed and repeatable every cycle:
- The pneumatic denester places an empty pre-formed cup into the turret pocket.
- The servo-driven volumetric piston deposits the base fill at ±0.5% accuracy; optional second and third fillers add oil, garnish or a sauce layer.
- The cup indexes to the closing stage, where nitrogen is directed into the headspace to sweep out air.
- Roll-film is heat-sealed to the cup flange using controlled temperature, pressure and dwell, trapping a nitrogen-rich atmosphere under a tamper-evident membrane.
- An optional plastic lid is placed or snapped on, and the finished cup discharges to the conveyor.
Three variables decide how much oxygen is left: headspace volume, how much air is entrained in the product itself, and how cleanly the seal closes. A small, consistent headspace flushes more completely than a deep, variable one, which is one reason accurate fill weight matters on a MAP cup filling machine.
SDH-R Modified Atmosphere Cup Sealer: Stations and Options
The SDH-R is built on the same platform as our rotary cup filling machine, so a MAP configuration is the standard machine with the nitrogen module added and the closing system matched to your package. Typical MAP builds include:
- Servo-driven volumetric piston filler for pastes and liquids, 50-500 g per cup
- Suck-back nozzle that retracts the product tail to stop drips on the flange
- Large-bore valving for herbs, shredded cucumber or nut pieces without smearing
- Roll-film membrane sealing or pre-die-cut lids, heat-sealed and tamper-evident
- Optional nitrogen MAP flushing reaching 0.3-0.4% residual oxygen
- Optional plastic lid pick-and-place or a snapping device for over-top lids
- Optional weight checker with a feedback loop to the filler
Why flange cleanliness decides MAP results
On cup lines, most MAP failures are seal failures rather than gas failures. A smear of hummus, oil or herb on the flange creates a channel through the heat seal, and the headspace slowly re-oxygenates in the cold room. Cut-off and suck-back nozzle options, correct fill temperature and a consistent fill height keep the flange dry. A snap-on lid is a reclosure feature, not the gas barrier; the sealed membrane does that job. See how the full cup filling and sealing process fits together.
Residual Oxygen and Shelf Life on a MAP Cup Filler
With the container MAP system, the SDH-R reduces residual headspace oxygen to 0.3-0.4%. For many refrigerated dips that is the difference between a typical shelf life of roughly 7-10 days and 30-45+ days. That range is product-dependent: recipe, acidity, water activity, raw-material quality, plant hygiene and cold-chain temperature all move the result.
Low oxygen slows enzymatic browning, fat oxidation and the growth of molds, which need oxygen. It does not sterilize the product, and it does not stop yeasts or lactic acid bacteria, many of which grow without oxygen. Air whipped into the product during mixing is not removed by the flush and migrates into the headspace over the first days, so gentle mixing and minimal aeration help a MAP cup filling machine deliver its full benefit.
Get a configured SDH-R quote for your productSend your product, cup size and target cups per minute — we reply within 24 hours.
Request a quoteWhich Products Benefit Most From a MAP Cup Filling Machine
Oxygen sensitivity varies widely. The table shows where nitrogen flushing tends to pay off and where other controls matter more.
Product vs oxidation risk vs MAP benefit
| Product | Main oxygen-driven risk | Typical MAP benefit | Watch-outs |
|---|---|---|---|
| Guacamole | Very high: enzymatic browning of avocado | High: slows surface browning | Often paired with acidulants and separate high-pressure processing |
| Basil pesto | High: color loss, oil and nut rancidity | High: protects color and flavor | Oil on the flange; low fill viscosity |
| Hummus | Moderate: tahini and oil flavor change, surface darkening | Moderate to high | Oil drizzle and garnish must stay off the flange |
| Baba ganoush | Moderate to high: eggplant browning | Moderate to high | Particulates and seeds near the seal area |
| Tzatziki, sour cream, dairy dips | Moderate: fat oxidation, mold | Moderate: slows mold and off-flavors | Syneresis (weeping) and wet flanges |
| Fresh salsa | Low to moderate: color fade | Lower: acidity and cold chain do more | High liquid content, splash during indexing |
Guacamole and pesto are the clearest cases, so we recommend evaluating the nitrogen option for guacamole cup filling lines and pesto cup fillers. Hummus producers use MAP to protect flavor through longer distribution, and it combines with the oil drizzle and garnish fillers in SDH-R hummus configurations. Dairy dips such as sour cream and tzatziki gain mainly from slower mold growth.
Barrier Cups and Films: MAP Only Works With Barrier Packaging
A nitrogen flush cup sealing machine can only set the starting atmosphere. Holding 0.3-0.4% oxygen for weeks depends on the cup and film. If the packaging lets oxygen through, the headspace drifts back toward air in storage. When specifying packaging with your supplier, check:
- Cup oxygen barrier: a single-layer cup may not hold a low-oxygen atmosphere for a 30-45 day life; multilayer cups with a barrier layer such as EVOH are common for MAP
- Lidding film barrier: ask for the oxygen transmission rate (OTR) at refrigerated, humid conditions, not just the dry lab figure
- Sealant compatibility: the film's sealant layer must match the cup material, for example polypropylene film on polypropylene cups
- Flange geometry: a flat, rigid flange of consistent width gives a reliable seal and matches the SDH-R tooling
- Food-contact compliance: packaging suitable for your markets, such as FDA food-contact requirements in the US and Regulation (EC) 1935/2004 in the EU
Send us samples of the cups and film you plan to use. Our engineering team builds the cup tooling for round, square or rectangular pre-formed cups (4, 8, 10 and 16 oz standard, 2-32 oz custom) and sets the sealing station for that material combination. Our fresh dip packaging guide covers cup and film choices in more depth.
Nitrogen Supply for a Nitrogen Flush Cup Sealing Machine
The machine needs a dependable source of clean, dry, food-grade nitrogen. In the US nitrogen is listed as generally recognized as safe (21 CFR 184.1540), and in the EU it is the approved packaging gas E941. Plants typically choose one of two supply routes:
- On-site nitrogen generator: separates nitrogen from compressed air using PSA or membrane technology. No deliveries, but it depends on a well-sized, oil-free, filtered compressed-air system.
- Bulk liquid nitrogen or cylinders: very high purity with low capital cost, but recurring gas charges, delivery logistics and storage space.
Purity matters more than many buyers expect. Generator nitrogen rated at 99.5% can contain up to 0.5% oxygen in the gas itself, which is already above a 0.3-0.4% residual target, so specify purity with the target in mind. Size flow and pressure for your cup size and speed with your gas supplier and our engineering team during quoting, and fit a regulator and filtration close to the machine.
Validating Shelf Life With Your Own Lab Testing
Plan how shelf life will be proven before a MAP cup filling machine goes into production. Shelf life belongs to your product, package and cold chain, so validate it with your own testing, ideally through an accredited food lab:
- Define the end-of-life criteria: color, odor, taste, pH, and microbial limits such as total aerobic count, yeasts and molds, and lactic acid bacteria.
- Pack test cups on production-representative settings with the final cups, film and fill weight, alongside air-packed controls.
- Measure headspace oxygen on day zero with a headspace gas analyzer to confirm the 0.3-0.4% target.
- Store samples at your labeled temperature and at a mild abuse temperature, then pull and test at set intervals.
- Track headspace oxygen over time; a steady rise points to a packaging barrier or seal leak, not the machine setting.
- Set the date code with a safety margin below the first failure point, and repeat the study when the recipe, cup or film changes.
Reduced-oxygen packaging also belongs in your hazard analysis. Under FDA FSMA Preventive Controls (21 CFR Part 117), and equally under HACCP plans for BRCGS or SQF audits or Canada's Safe Food for Canadians Regulations, consider organisms that tolerate low oxygen, such as Clostridium botulinum. The controls are typically pH, water activity, refrigeration and a defined shelf life, not the gas itself; consult a qualified process authority where needed.
Hygiene, Changeover and Daily Operation
Product-contact parts are food-grade 304 stainless steel with tool-free strip-down, and a CIP (clean-in-place) system is available as an option. That matters for hummus and tahini lines handling sesame, the ninth major US allergen since January 1, 2023 under the FASTER Act. The SDH-R is designed to support plants operating under HACCP, BRCGS and SQF programs; it is not itself certified to those schemes. The machine is CE marked, UL listed and uses FDA compliant food-contact materials.
The PLC and HMI store recipes, so each SKU's settings come back at changeover, and diagnostic alerts flag faults. Changeover between SKUs takes under about 15 minutes, so one MAP cup filling machine can run several flavors and cup sizes in a shift.
When a MAP Cup Filling Machine Like the SDH-R Is Not the Right Choice
We would rather tell you early if the SDH-R does not fit. Look elsewhere if:
- You need more than 30 cups per minute on a single SKU; an inline cup filling machine is the better route at that volume.
- The product must be shelf-stable at ambient temperature; the SDH-R is not aseptic or retort equipment.
- The product is frozen, or you need to thermoform cups from roll stock; the SDH-R fills pre-formed cups only.
- You are packing meat or poultry in trays; compare options on our tray sealing machine page.
- Your packaging has no oxygen barrier; MAP will add little until the cup and film are upgraded.
- Fills are below 50 g; 2 oz portion cups sit at the low end of the range and need confirmation.
MAP Cup Filling Machine Price, Lead Time and Quote
The SDH-R starts at $45,000 USD for the single-filler configuration. Nitrogen MAP is priced as an option, and the total also scales with additional fillers, lidding, labeling and coding integration, the weight checker and custom tooling. Real-world output of 18-25 cups per minute depends on product, cup size, fill weight and options, and we confirm a realistic rate for your MAP configuration in the quote. See the full specification on the SDH-R product page.
Machines are designed and built in Calgary, Alberta, delivered 8-12 weeks from order confirmation and covered by a 12-month warranty, with service centres in Alberta, New Jersey and California. To get an accurate quote, send us your application details:
- Product and recipe characteristics, including viscosity, particulates and fill temperature
- Cup size, shape and material, plus the lidding film you intend to use
- Target cups per minute and fill weight
- Options: MAP, extra fillers, lids, labeling, coding, weight checker, CIP
We reply within about 24 hours and may reach out to learn more about your shelf-life goals before quoting. You can also call +1 (888) 922-7271 or request a MAP cup filler quote online.
MAP Cup Filling Machine — Frequently Asked Questions
The Hummus Pack SDH-R starts at $45,000 USD for the single-filler configuration. Nitrogen MAP flushing is an added option, and price also scales with extra fillers, lid placement, labeling and coding, a weight checker and custom cup tooling. Send your product, cup size, target cups per minute and options for a configured quote, usually within about 24 hours.
With the optional container MAP system, the SDH-R reduces residual headspace oxygen to 0.3-0.4%. The actual figure on your line depends on headspace volume, air entrained in the product, nitrogen purity and seal integrity, so measure it with a headspace gas analyzer at start-up and as a routine verification check.
For many refrigerated dips, nitrogen MAP on the SDH-R extends typical shelf life from roughly 7-10 days to 30-45+ days. The result is product-dependent: recipe, pH, water activity, hygiene, barrier packaging and cold-chain temperature all matter. Validate the final date code with your own lab testing before printing it on the label.
Yes. MAP only works with barrier packaging. Single-layer cups and films can let oxygen back in during storage, undoing the nitrogen flush. Most MAP programs use multilayer cups with a barrier layer such as EVOH and a low-OTR lidding film whose sealant layer matches the cup material. Send samples so our team can set tooling and sealing for them.
Both work with the SDH-R MAP option. An on-site PSA or membrane generator avoids deliveries but needs oil-free, filtered compressed air and enough purity for a 0.3-0.4% residual oxygen target. Bulk liquid nitrogen or cylinders give very high purity with recurring gas costs. Size flow and purity with your gas supplier.
The SDH-R runs up to 30 cups per minute on a dry cycle and typically 18-25 cups per minute in production, depending on product, cup size, fill weight and options such as nitrogen MAP and lid placement. For more than 30 cups per minute on one SKU, an inline line is usually the better fit.
Oxygen-sensitive products gain the most: guacamole, which browns quickly, basil pesto, which loses color and turns rancid, and hummus and baba ganoush, which lose fresh flavor. Dairy dips such as tzatziki and sour cream benefit mainly from slower mold growth. High-acid fresh salsa usually gains less from nitrogen flushing on the SDH-R.
No. Nitrogen MAP on the SDH-R slows oxidation and mold growth, but it does not sterilize the product or stop organisms that tolerate low oxygen. Products still need refrigeration, and reduced-oxygen packaging should be addressed in your hazard analysis under FSMA Preventive Controls (21 CFR Part 117), HACCP or Canada's SFCR, using controls such as pH and shelf-life limits.
The SDH-R is designed and built in Calgary, Alberta, and is delivered 8-12 weeks from order confirmation with a 12-month warranty. Support comes from our service centres in Alberta, New Jersey and California. Contact our team with your product and cup details to confirm timing for your configuration.
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