Effervescent Tube Manufacturer for Private Label Brands

EUPHM operates two effervescent tableting lines with 25–35 punches, running at 15,000–30,000 tablets per hour depending on diameter and compression force. Tube filling runs at 60–120 tubes per minute. We handle 20 mm to 120 mm tube diameters and fill weights from 2 g to 8 g per tablet. Desiccant caps or integrated desiccant liners are fitted in-line, which keeps moisture ingress below 0.5 g per day under 75% relative humidity at 40°C.

Tooling changes for a new tube diameter take 4–6 hours. That matters when a brand wants a 20-count trial SKU alongside a 60-count core SKU on the same order. We run both on the same shift, with separate hoppers and verified clean-down between formulations. Line capacity is reserved in 5,000-unit blocks, so a 1,000-unit MOQ does not wait for a full production day.

Effervescent tablets in tubes face a different moisture and headspace profile than blister strips. We formulate with citric acid, tartaric acid or a malic-citric blend, and sodium bicarbonate or potassium bicarbonate as the base. Typical acid-to-base ratios run 1:1.1 to 1:1.4 by weight. Tablet hardness sits between 60 N and 120 N; below 60 N, tube vibration during transport causes edge chipping. Above 120 N, dissolution time exceeds 120 seconds in 200 mL of water at 20°C.

Active ingredients are dosed at 5–40% w/w for vitamins such as vitamin C, B-complex and zinc. Electrolyte blends with 200–500 mg sodium and 100–300 mg potassium per tablet are common. Flavours are spray-dried or granulated, not liquid, to avoid premature reaction. Colourants must be water-soluble and acid-stable. We run a 72-hour accelerated stability check at 40°C and 75% RH before releasing a tube formulation to mass production.

Every batch is tested for weight variation (±3%), hardness, disintegration time, pH of the reconstituted solution, and microbial limits. We hold GMP, ISO 22000 and HACCP certification. Halal and certificates are available per SKU. Our facility is FDA-registered for dietary supplements. Certificates of analysis are issued per batch, and retain samples are kept for 24 months.

For export, tubes ship in 5-ply corrugated cartons with 24–48 tubes per carton. We palletise to 1,000–1,200 mm heights, stretch-wrap and desiccant-bag the pallet. FOB Shenzhen or Yantian port. Air freight samples leave within 3 working days of release. Documentation includes commercial invoice, packing list, certificate of origin, and health certificate where the destination requires it. Lead time from purchase order to port is 20–35 working days.

Every effervescent tube batch is tested against a written specification before release. Incoming raw materials are sampled for identity by FTIR or HPLC, and each active ingredient is assayed for potency. Tablets are checked for weight variation (target ±5%), hardness, thickness and disintegration time, which for effervescent tablets is typically under 5 minutes at 20°C in 200 ml water. Microbial limits follow the relevant pharmacopoeial or customer standard, with total aerobic count, yeast and mould, E. coli and Salmonella tested per batch. Heavy metals (lead, cadmium, arsenic, mercury) are screened on the finished tablet, not only on raw materials, because tube contact and processing can introduce trace contamination.

Testing happens at three points: incoming goods, in-process (granulation moisture, blend uniformity, compression weight) and finished product. In-process checks run every 30 minutes on the filling line, with tube fill weight, cap torque and desiccant presence verified. A batch is only released when the finished-product COA is signed by the QC manager. The COA lists batch number, production date, expiry date, active assay results, microbial results, heavy metals, disintegration, appearance, tube dimensions and desiccant type. It is issued in English as standard and can be translated for EU or Middle East importers on request.

Retention samples are kept for the full shelf life plus six months. For a 24-month shelf life, that means 30 months of retained tubes stored at 25°C/60% RH and, for stability batches, at 30°C/65% RH and 40°C/75% RH. The stability protocol covers 0, 3, 6, 9, 12, 18 and 24 months, testing assay, disintegration, moisture content, microbial limits and tube seal integrity. Accelerated data at 40°C/75% RH for six months is used to support the initial shelf-life claim before real-time data is complete. Customers receive the stability summary in the technical file, which is updated as new time points are added.

For private-label brands, the technical file also includes the master batch record, packaging specifications, a tube-to-tablet compatibility statement and a declaration of no prohibited substances. If the formula contains a novel ingredient or a high-dose active, additional assay method validation is performed and documented. Batch records are retained for five years, which meets most export market requirements. Buyers auditing the factory can request a batch record review during a site visit, and third-party audit reports (GMP, ISO 22000, HACCP) are shared under NDA.

Effervescent tubes are the primary pack, but the retail unit often includes a secondary carton, a shrink sleeve or a label applied to the tube body. Tube diameters from 30 mm to 120 mm allow tablet counts from 20 to 60. Caps can be plain, child-resistant or tamper-evident, and a desiccant plug or sachet is inserted during capping. For brands also selling other formats, the same line can output effervescent tablets into blisters, stick packs or sachets, but tube tooling is dedicated and should be specified at the quotation stage. Tube wall thickness and cap thread tolerance are matched to the filling head to avoid capping defects at speed.

Labelling for the US market must include the statement of identity, net quantity, ingredient list, supplement facts panel, directions for use, and the name and place of business of the manufacturer, packer or distributor. For EU retail, the label needs the nutrition declaration, allergens, lot number, best-before date and the food business operator address. Lot and expiry coding is applied by inkjet or laser on the tube body and, where required, on the carton. The code format is agreed with the customer before production; common formats are YYMMDD plus a line code. Cartons are specified with board grade, print colours and pallet configuration.

Pallet specifications are agreed per destination. A standard pallet is 1200 x 1000 mm or 1200 x 800 mm, with a maximum height of 1.8 m including the pallet, and stretch-wrapped with corner boards. Amazon sellers need FNSKU labels applied over the barcode, poly-bagged units where the tube is not shipper-ready, and carton weight under 22.7 kg for manual handling. Retail compliance for EU supermarkets often requires a specific barcode placement and a carton mark with the item number, quantity and batch. The factory can apply FNSKU labels and Amazon-compliant carton markings as a value-added service.

Retail-ready packaging also covers shelf-life claims and storage statements. Effervescent tubes are moisture-sensitive, so the label should state storage below 25°C and away from direct sunlight. If the brand makes a vegan, halal or organic claim, the relevant certificate number must appear on the label and match the certificate on file. Artwork proofs are checked by the factory against the approved formula and the destination regulation before printing. A pre-production proof is signed off by the customer, and any change to artwork after that point triggers a new proof cycle, typically adding three to five working days.

Sampling starts with a formula and tube specification review, which takes two to three working days. Prototype samples are produced in 7 to 10 working days for standard formulas and 12 to 15 working days if a new flavour or active blend needs development. Samples are sent by courier with a preliminary COA and a tube specification sheet. The customer approves the sample in writing, including artwork and tube dimensions, before a production slot is booked. A pilot run of 1,000 units per SKU is available for market testing, and the retail MOQ is 1,000 units per SKU depending on tube size and tablet count.

Mass production runs 20 to 35 working days after sample approval, depending on tube availability and whether labels are printed in-house or supplied. Tube shells are normally stocked in common diameters, but custom colours or printed tubes add 10 to 15 working days. The production window includes granulation, compression, tube filling, capping, labelling, cartoning and QC release. A pre-shipment inspection is carried out before dispatch, and the customer or a third-party inspector can attend. The final COA and packing list are issued with the shipping documents.

Delivery terms are quoted as EXW, FOB or DDP. FOB is from Shenzhen or Hong Kong, and sea freight to US west coast ports takes 18 to 25 days, to EU ports 28 to 35 days, and to Middle East ports 15 to 22 days. Air freight takes 5 to 8 days door to door but is only economic for samples or urgent pilot runs. DDP is available for Amazon FBA and for buyers who want a landed cost; the factory handles customs clearance and final-mile delivery through a freight forwarder. Incoterms and the named place are stated on the quotation and the sales contract.

Shipping documents include the commercial invoice, packing list, bill of lading or air waybill, COA, MSDS where the formula requires one, and a free-sale certificate for markets that request it. A phytosanitary certificate is not normally relevant for effervescent tubes, but a certificate of origin can be issued for preferential tariff treatment. Halal certificates are provided when the formula and line are certified. Documents are shared as PDFs before dispatch for buyer review, and originals are couriered with the shipment or sent by express courier, depending on the letter of credit terms.