Two suppliers quote a liquid filling machine for the same product, the same bottle and the same target output. One quote is 40% lower. Nine times out of ten the cheaper machine is not a bargain and not a fraud — it is a different scope, and the difference only becomes visible when the line is installed and the missing items start arriving as change orders.
The cost of that discovery is not the price gap. It is the commissioning delay while a capping head, a CIP connection or an accumulation table is added to a line that was supposed to be producing. It is the changeover that takes four hours instead of twenty minutes because the change parts were never included, and the stainless grade that turns out to be inadequate for the product.
Sailwin has built filling systems for 500+ installations in 60+ countries over 15+ years, manufacturing under ISO 9001:2015 with CE marking, using SUS304 and SUS316L contact parts and running a 24-hour FAT on filling lines before shipment. This guide breaks a filling machine quotation into its actual cost components so you can compare offers on scope instead of on the bottom line.
Key Takeaways
- Filling head count and filling technology set the price band before any supplier discount applies. Everything else — conveyors, capping, CIP, coding — is scope that can be added or removed, which is exactly why quotes must be compared line by line.
- The stainless grade and hygienic scope are cost decisions, not details: SUS304 is sufficient for many water and general products, while SUS316L contact parts belong on corrosive, acidic or dairy-type products. Specifying the right grade first is cheaper than upgrading later.
- A 24-hour FAT and fast changeover are where a line earns back its cost: both protect the revenue the project was built around.
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1. Why Two Quotes for the Same Line Differ So Much
A filling line is a system, not a machine. The monobloc is the visible centre, but the delivered scope usually includes bottle handling, accumulation, capping, closure feeding, control architecture, CIP connections and commissioning. Two suppliers can both describe their offer as “a filling machine” while one quotes the monobloc alone and the other quotes a connect-and-run line.
The practical discipline is to force every quotation into the same structure before comparing numbers. Ask each supplier to list filling heads, filling technology, capping type, conveyor scope, control platform, stainless grade for all product-contact parts, change parts included, FAT duration and commissioning days. Once the two lists sit side by side, the price difference usually explains itself — and the remaining gap is the only part worth negotiating.
| Cost driver | What it changes | Relative weight in the quotation | How to verify it |
|---|---|---|---|
| Number of filling heads | Output at a given fill time, and the frame size and drive power that follow from it | High — the primary scaling factor | Require the head count and fill time to be stated together, since either alone is meaningless |
| Filling technology | Valve design, product handling and whether the line can run carbonated or hot products | High — changes valve cost, controls and hygiene design | Match the technology to your product and filling temperature, then confirm it in writing |
| Automation and control level | Recipe management, changeover speed, alarm and traceability scope | Medium to high | Ask which PLC platform is used and how many parameters are monitored in real time |
| Stainless grade and hygienic scope | Corrosion resistance, cleanability, CIP provision and surface finish | Medium — but a costly retrofit | Specify SUS304 or SUS316L per component, not as a general statement for the machine |
| Change parts and format range | Whether the line can actually run your full product and bottle range | Medium — and the most common hidden extra | List every SKU and every container, then count the change parts quoted per format |
| Line integration scope | Conveyors, accumulation, capping, closure feeding, coding, labelling interface | Medium — and highly variable between quotes | Request a scope boundary drawing showing exactly what is supplied and where the line ends |
2. Filling Head Count and Technology: The Two Decisions That Set the Price Band
Output is the product of head count and cycles per minute, so head count is the first cost lever. A supplier quoting a high head count at a low price has usually assumed a fill time your product will not allow, or a valve design that cannot hold your accuracy tolerance. Never accept an output figure without the fill time and accuracy behind it.
| Configuration | What it suits | Cost position | What to specify |
|---|---|---|---|
| 3-in-1 rinse, fill and cap monobloc | General bottling where bottle hygiene and cap application belong in one compact frame | Integrated value — fewer transfer points than separate machines | Rinse medium and recovery, gripper handling, and capping torque control method |
| Laminar flow filling valves | Still liquids where a controlled, low-turbulence fill reduces foaming | Baseline for still products | Fill accuracy and drip behaviour after the valve closes, which decides cap hygiene |
| Isobaric filling | Carbonated soft drinks, where pressure must be balanced to keep CO2 in solution | Higher than still filling, due to valve and pressure control complexity | Counter-pressure control, deaeration, and the filling temperature window |
| Hot filling | Products filled hot for microbiological control without a downstream sterilisation step | Higher, because thermal design affects valves, frame and container handling | Product temperature at the valve, cooling tunnel interface and container thermal stability |
| 5-gallon line | Large returnable or single-trip containers for water and bulk liquids | Separate cost band — handling and washing dominate, not filling speed | Bottle washing and sanitising sequence, cap handling, and manual versus automatic loading |
A filling machine price is only comparable when the head count, fill time, accuracy tolerance, capping method and stainless grade are stated together. Any quotation missing one of those five is not a lower price — it is an unfinished scope.
3. Capping, Handling and the Details Buyers Forget to Cost
Capping is the smallest mechanical system on a line and the largest source of customer complaints: cap torque that varies between bottles produces leaks in one direction and hard-to-open caps in the other. Sailwin filling lines use constant magnetic torque capping, which holds repeatability across a run instead of relying on friction settings that drift. Specify the torque target and band; a supplier who cannot discuss it in those terms is not engineering the station to a specification.
- Bottle handling as part of the line, not an accessory. Sailwin monoblocs use 180° turnover grippers, which handle the bottle positively through rinse, fill and cap instead of pushing it along a rail.
- Change parts priced per format. Fast changeover is a design promise that only survives if the change parts for each container are in the quotation and stored with the line.
- Contact-part grade stated per component. SUS304 covers many water and general products; SUS316L contact parts belong on corrosive and acidic products. Ambiguity here is the most expensive kind.
- Control platform named. Sailwin lines use Siemens or Mitsubishi PLCs with Schneider electricals and ABB components, and the PLC monitors 40+ parameters in real time — which is what makes a commissioning record meaningful.
4. What You Pay For After Delivery: FAT, Commissioning and Support
The part of a quotation buyers discount most heavily is the part that protects the investment. A 24-hour FAT is not a formality — it is where fill accuracy, capping torque, transfer reliability and changeover are proved on your product before the line ships. Correcting a torque problem at the supplier’s plant costs a shift; correcting it in yours costs production time you have already committed to customers.
Delivery terms matter for the same reason. Sailwin builds in 30–45 days, or 45–60 days for custom work, and commissions on site in 3–7 days. Compare those terms before comparing price: a line that arrives later or waits weeks for a change part costs more than the invoice suggests.
- Ask what the FAT will prove. Insist on fill accuracy, capping torque, changeover time and transfer reliability being measured and recorded, not just demonstrated.
- Ask who runs the commissioning. The engineers who built the line should be the ones who set it up on site during the 3–7 day window.
- Ask for a wear parts list with lead times. A 48-hour supply commitment on common wear parts is only meaningful if you know which parts are covered.
- Ask how remote support works. A 7×24 channel with engineers who can read the PLC data is worth more than a generic service hotline.
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5. Case Study: A Two-Format Automotive Care Fluid Filling Line
A manufacturer packing automotive care fluids needed one line to handle two bottle formats with different viscosities, and had been quoted by three suppliers at three different prices for what looked like the same machine.
- Two bottle formats and two product viscosities on one line, with frequent changeover between them
- Quotations that were not comparable: one excluded capping, another excluded conveyors and change parts
- Foaming during filling creating fill-weight variation and product on the bottle neck before capping
- Scope rebuilt into one comparison structure: filling heads, laminar flow valves, capping station, conveyors, change parts and stainless grades listed per component
- Constant magnetic torque capping specified to a torque target and band, so cap quality is repeatable across both formats
- 180° turnover grippers used through rinse, fill and cap to hold the bottle positively and reduce spillage onto the neck
- 24-hour FAT on the client’s own product before shipment, with change parts for both formats supplied and stored with the line
- Quote comparison became possible — the three offers were rebuilt to one scope structure, so the decision rested on specification rather than on price alone
- Changeover protected the product mix with change parts supplied per format and stored with the line
- Commissioning started from a verified baseline, because fill accuracy and capping torque were already proved during the 24-hour FAT
Scenario based on a Sailwin customer project; site-specific figures available on request during engineering review.
Frequently Asked Questions
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Related Reading:
• Filling Machines — monobloc, isobaric, hot fill and 5-gallon lines
• How to Choose a Liquid Filling Machine
• 5-Gallon PET Blow Molding Machine — upstream of a 5-gallon filling line
• Jerrycan Blow Molding Machines for industrial liquid packs
• Injection Molding Machines for closures and caps
• Utility Requirements for a Bottling Line
