Introduction: Building a Stable Line for 100ml Travel Size Cosmetic Bottles
The global travel size cosmetics segment keeps expanding as airlines tighten liquid rules, hotels standardize amenity kits, and consumers adopt the “mini but premium” habit for serums, essences, toners, lotions, and facial mists. At the center of this demand sits the humble 100ml bottle: small enough to clear cabin restrictions, large enough to deliver a real routine, and produced in volumes that reward any improvement in consistency and cost. For brand owners and contract fillers, the question is no longer whether to make travel size bottles, but how to make them without sacrificing surface quality, wall thickness uniformity, or output stability.
This is where the accumulator free extrusion blow molding machine earns its place. An accumulator free EBM machine builds each parison directly from a continuous extrusion die head rather than from a storage cylinder, giving small containers a smoother, more controllable formation path. Apollo, a Wanplas factory, has spent more than 20 years building extrusion blow molding machines for exactly this kind of work, with over 4,000 sets running in more than 90 countries and an 8,000 square meter production base. This article explains what accumulator free EBM means, why it fits 50ml to 150ml cosmetic bottles, which Apollo models to specify, how to set them up for HDPE, PETG, and PP, and how to plan a stable, low cost travel size bottle line.
In the sections that follow we cover the die head principle, the parison control that stabilizes wall thickness, the ABLB 55 and the small fully electric series as concrete machine examples, material and cosmetic compliance routes through FDA, EU 10/2011, and ISO 22716, and a selection guide that maps output targets to the right configuration. The goal is practical: by the end you should be able to brief a supplier, size a cell, and avoid the common mistakes that turn a travel size project into a scrap heavy one.
What “Accumulator Free” Actually Means in Extrusion Blow Molding
An accumulator free EBM machine is an extrusion blow molding system whose die head extrudes the parison continuously from the melt stream, without a separate accumulator (storage cylinder) that buffers and then rapidly pushes a shot of melt into the head. The distinction matters because the accumulator is a feature designed for very large parts: drums, tanks, and industrial containers where you need a big volume of melt delivered fast. For a 100ml bottle, that rapid delivery is unnecessary and even counterproductive, because the part is small and the parison is short. Continuous, accumulator free extrusion keeps the melt moving at a steady rate and lets a servo parison programmer shape the wall along the length of the parison in real time.
The continuous extrusion die head is the heart of the accumulator free design. Melt from the screw and barrel passes through a breaker plate and a die head where a movable mandrel or a set of servo actuated deckles changes the annular gap, controlling how thick or thin the parison wall becomes at each point as it descends. Because there is no accumulator charging and dumping cycle, the timing is gentler, the shear history is shorter, and the surface of the parison is cleaner. For cosmetic bottles where the outside finish, labelability, and gloss all depend on a defect free parison surface, this is a direct quality advantage.
Control of the parison is handled by a servo programmer, in this category typically a MOOG style servo hydraulic parison control with many control points along the stroke. Each control point sets a wall thickness target, so the bottle can be thickened at the load bearing base and neck and thinned along the body to save material. The result is a stable wall profile from cavity to cavity and from shot to shot, which is the foundation of stable production for travel size bottles produced in high cavity counts.
From a process view, accumulator free EBM is the simpler, more repeatable route for small containers. There is less melt residence, fewer pressure spikes, and a more linear relationship between screw speed and parison rate. That linearity is what lets an operator tune output by adjusting extruder rpm, parison length, and blow timing rather than fighting the surge of an accumulator dump. For a 100ml lotion or mist bottle running in multi cavity molds, that controllability translates into fewer thin spots, fewer flashes, and a tighter weight band.
Why 50ml to 150ml Cosmetic Bottles Are a Perfect Fit
Travel size cosmetic bottles sit in a narrow, forgiving weight band that plays directly to the strengths of continuous extrusion. A 100ml HDPE bottle typically weighs between 8 and 14 grams depending on wall design, neck style, and whether it carries a handle or a dispenser collar. A 50ml sample weighs half that, and a 150ml version weighs a little more. None of these require the melt volume or the fast fill of an accumulator blow molding shot. They require precision, repeatability, and a clean surface, all of which are easier to hold with an accumulator free die head.
Consider the product families inside this range. Lotion and emulsion bottles need a soft, squeezable wall and a stable shoulder that survives filling and capping. Essence and serum bottles need tight neck tolerances so a pump or dropper seats without leak. Toner and facial mist bottles need a glossy, uniform body because they are often clear or tinted and stand on a shelf where surface flaws are visible. Spray and mist small bottles need a consistent base so they stand upright on a vanity. The accumulator free approach serves all of these because the parison wall can be programmed to add material exactly where the bottle is stressed and remove it where it is not.
Cost is the other driver. An accumulator head, its hydraulic cylinder, and its rapid clamping logic add capital and maintenance load that a small bottle line does not need. By choosing accumulator free continuous extrusion, a filler keeps the machine footprint smaller, the hydraulic oil volume lower, and the energy per bottle lower, while still reaching the output a travel size program demands through multi cavity tooling. The saving is not only in purchase price but in the everyday cost of running, filtering, and heating hydraulic fluid that a continuous machine uses far less aggressively.
Stability is the quiet benefit that customers notice after the first week, not the first demo. Because there is no accumulator surge, the parison enters the mold at a steady temperature and rate, so the clamp and blow sequence can be timed tightly. With a servo parison programmer and good cooling, a 100ml bottle settles into a repeatable cycle where weight variation stays inside a narrow band. That band is what lets a filler promise a fixed fill volume to a cosmetics brand without over packing material “just to be safe.”
Another quiet advantage of the accumulator free route is how kindly it treats regrind. Travel size lines generate neck and tail scrap on every shot, and because the continuous head keeps melt residence short, that scrap can be reclaimed, ground, and fed back at a controlled ratio without noticeable property loss. A filler running HDPE can close the loop inside the plant, cutting material cost per bottle while keeping the wall program stable. The short residence also protects heat sensitive color masterbatches, so a tinted lotion bottle keeps its shade from the first cavity to the last rather than drifting as the run warms up. For a brand that changes colors by season, this consistency removes a whole class of customer complaints about mismatched batches on the same shelf.
The ABLB 55: A Compact Workhorse for 100ml Bottles
Apollo’s ABLB series covers containers from 200ml up to 20L across eight machine types, and the ABLB 55 is the compact member built for small to medium hollow parts. Although its nominal single cavity capacity reaches the multi liter range, the ABLB 55 is most productive for travel size work when run with multi cavity molds that split its output across several 50ml to 150ml cavities at once. This is the standard way to hit high bottles per hour on a small bottle without moving to a larger, more expensive platform.
The ABLB 55 uses a single screw extruder sized for the melt rate a 100ml program needs. Screw diameter falls in the 45mm to 55mm range with an L/D ratio of 22 to 25, a geometry tuned for steady plasticizing of HDPE, PP, and PETG at cosmetic grades. The die head is accumulator free and continuous, driven by a servo parison programmer for wall control. The clamp is sized for the modest clamping force a thin walled small bottle requires, which keeps the platens fast and the cycle short.
In practice, an ABLB 55 configured for 100ml HDPE lotion bottles in a multi cavity mold delivers a stable, economical cell. The table below lists a representative specification set. Exact values are confirmed against the factory quotation for a given mold and material, but the ranges reflect the machine family and are a sound basis for layout and utility planning.
| Parameter | ABLB 55 (representative) | Notes for 100ml travel bottles |
|---|---|---|
| Machine series | ABLB series, continuous EBM | Apollo, a Wanplas factory |
| Max container volume (single cavity) | Up to 3L | Multi cavity used for 50-150ml |
| Screw diameter | 50mm (range 45-55mm) | Steady melt rate for small bottles |
| L/D ratio | 22-25 | Good plasticizing, low shear |
| Number of cavities (100ml) | 2 to 8 cavities | Depends on neck and body shape |
| Parison control | MOOG servo programmer, 20-32 points | Programs wall along parison |
| Die head type | Accumulator free continuous head | Clean surface, low surge |
| Neck specification | 24/410, 20/410, 18/415, custom | Match pump or cap finish |
| Cycle time (100ml, 4 cavity) | Approximately 10-14 seconds | Mold cooling dependent |
| Output (100ml HDPE) | Up to 1,000-1,500 BPH | Higher cavity count raises BPH |
| Wall thickness tolerance | Plus or minus 0.03-0.05mm | Stable from cavity to cavity |
| Extruder drive | Variable frequency or servo | Energy tuned to output |
| Heating zones | 4-5 barrel zones plus head | Closed loop temperature control |
| Installed power | Approximately 22-35kW | Confirm with final config |
| Air requirement | Clean dry compressed air, 6-10 bar | Blow and pneumatic valves |
The ABLB 55 is the right answer when the priority is a proven, serviceable hydraulic clamp platform that can run long shifts making cosmetic bottles at a controlled cost. It is also flexible: the same machine can switch from a 100ml lotion bottle to a 150ml mist bottle by changing the mold and the parison program, so a contract filler with several SKUs can consolidate on one platform.
The Small Fully Electric Series: Cleaner, Quieter, Lower Energy
Apollo also builds a fully electric extrusion blow molding series covering 200ml to 20L, and at the small end it is a strong match for cosmetic grade bottles where the cleanest possible environment and the lowest energy per bottle matter. A fully electric machine removes the hydraulic power unit and replaces clamp, platen, and parison actuation with servo electric axes. For travel size cosmetics this brings three concrete gains: no hydraulic oil in the production area, lower noise, and a measurable drop in energy per thousand bottles.
From a compliance angle, the electric machine supports the cosmetic GMP mindset behind ISO 22716. Less oil means less risk of contamination pathways, easier housekeeping, and a calmer thermal environment around the mold. From a cost angle, the electric axis draws power only when it moves, so idle and holding periods cost almost nothing, which suits lines that run varied batches rather than one nonstop SKU.
| Parameter | Small Fully Electric series (representative) | Why it helps cosmetic bottles |
|---|---|---|
| Drive architecture | Fully electric, servo axes | No hydraulic oil in cell |
| Screw diameter | 45-55mm | Matched to small bottle melt rate |
| L/D ratio | 22-25 | Stable plasticizing |
| Cavities (100ml) | 2 to 6 cavities typical | Clean room friendly batches |
| Parison control | Servo parison programmer | Tight wall control |
| Energy per bottle | Lower than hydraulic baseline | Power only on motion |
| Noise level | Reduced versus hydraulic | Better shop floor |
| Contamination risk | Minimal oil exposure | सहायताs GMP practice |
| Output (100ml) | Comparable BPH to ABLB 55 | Slightly lower cavity max |
The choice between ABLB 55 and the small fully electric series is not about which makes a better bottle but about the operating model. A high volume, cost driven filler leans to the ABLB 55 for its cavity headroom and lower entry cost. A premium cosmetic brand or a clean room oriented filler leans to the fully electric series for oil free operation and lower energy. Both are accumulator free continuous machines, so the parison quality story is the same.
Materials: HDPE, PETG, and PP for Cosmetic Grade Bottles
Travel size cosmetic bottles are made from a short list of polyolefins and clear amorphous resins, each with a different behavior on an accumulator free die head. HDPE is the default for squeezable lotion and emulsion bottles: it is tough, chemical resistant, low cost, and easy to process. PP is chosen when a bottle needs higher temperature resistance for hot fill or autoclave style cleaning, and when a slightly stiffer wall is wanted. PETG is the clear, glossy option for serums, essences, and premium mists where see through presentation sells the product, though it needs careful drying and a cleaner parison surface to avoid hazing.
On an accumulator free continuous head, material choice drives the setpoints. HDPE runs at a moderate melt temperature with a wide processing window, which is why it is the friendliest for a new travel size line. PP needs a higher and tighter temperature band and a drier feed, and it shrinks a bit more, so the mold and cooling must account for post mold shrinkage. PETG demands pre drying to keep moisture out of the melt, a clean head, and a slower parison drop so the surface sets glossy rather than frosted.
Compliance is where cosmetics differ from general packaging. A bottle that touches skin care must meet food contact and cosmetics rules even when the contents are not eaten. In the United States that route runs through FDA requirements for food contact materials; in the European Union it runs through EU 10/2011 for plastic materials and articles intended to come into contact with food, which cosmetics packages reference for their base resins. Good manufacturing practice for the whole filling environment is structured by ISO 22716, the cosmetics GMP standard, which shapes how the bottle is made, handled, stored, and traced. Apollo machines are set up to support these routes by keeping the melt path clean, the head design simple to purge, and the process documented.
| Material | Typical bottle use | Melt temp band | Drying need | Machine setting focus |
|---|---|---|---|---|
| HDPE | Lotion, emulsion, shampoo | 190-230C | None required | Wide window, fast cycle |
| PP | Hot fill, stiff wall | 210-250C | Light, dry feed | Tighter temp, shrinkage |
| PETG | Serum, essence, mist | 220-250C | Required, 4+ hours | Clean head, slow drop |
The table above is a starting point, not a recipe. Exact setpoints come from the resin datasheet and a short trial on the target mold, because colorant, regrind ratio, and neck insert all shift the optimum. The point for a travel size program is that an accumulator free head makes these trials easier: with no accumulator to purge and a short, steady parison, a material change is a few setpoint moves rather than a long, wasteful restart.
Accumulator vs Continuous Die Head: A Direct Comparison
Buyers sometimes ask why not just add an accumulator to a small bottle machine “for power.” The honest answer is that for 50ml to 150ml bottles the accumulator adds cost and risk without adding value. The comparison below is technology versus technology, which is the only fair way to judge it. Both are legitimate; they serve different part sizes.
| Aspect | Accumulator (storage cylinder) head | Accumulator free continuous head |
|---|---|---|
| Best part size | Large: 5L to 1500L+ | Small to medium: 50ml to 20L |
| Parison delivery | Charged then dumped fast | Steady continuous extrusion |
| Surface quality | Good on large parts | Excellent on small cosmetic bottles |
| Melt residence time | Longer in cylinder | Shorter, lower degradation risk |
| दीवार नियंत्रण | Coarse on small parts | Fine, servo programmed |
| Capital cost | Higher for small bottle use | Lower for small bottle use |
| Hydraulic load | High during dump | Low and steady |
| Energy per bottle | Higher at small sizes | Lower at small sizes |
| Changeover speed | धीमी पर्ज | Faster purge |
For travel size cosmetic bottles, every row points the same way. The continuous, accumulator free head gives better surface, finer wall control, lower cost, and faster changeover. The accumulator only wins when the part is so large that a single screw cannot deliver melt fast enough, which is never the case at 100ml.
Mapping 50ml, 100ml, and 150ml Bottles to Machine Configuration
Within the travel size band, the three common volumes call for slightly different mold and cavity plans. A 50ml bottle can run in more cavities because each shot is light, so a single parison drop can feed more cavities. A 100ml bottle is the balance point most lines standardize on. A 150ml bottle needs a bit more melt per cavity, so cavity count drops a little unless the machine has more screw capacity. The table below maps the three volumes to a sensible Apollo configuration.
| Bottle volume | Suggested model | Cavities | Output (BPH, HDPE) | Typical cycle |
|---|---|---|---|---|
| 50ml | ABLB 55 or small electric | 4 to 8 | 1,500-2,500 | 8-11 seconds |
| 100ml | ABLB 55 or small electric | 2 to 6 | 1,000-1,800 | 10-14 seconds |
| 150ml | ABLB 55 (or ABLD for large) | 2 to 4 | 700-1,300 | 12-16 seconds |
These numbers assume good cooling, a neck insert that does not bottleneck the cycle, and a parison program already optimized. They are planning figures, not guarantees; the factory confirms output against the actual mold and resin. The key takeaway is that one ABLB 55 platform covers the whole 50ml to 150ml travel band by swapping molds and cavity count, which is exactly what a contract filler with several SKUs wants.
Key Parameters That Stabilize a 100ml Travel Bottle Run
Stable production is the product of a few well controlled parameters, not a single magic setting. The first is screw and barrel condition: with a 45mm to 55mm screw at L/D 22 to 25, plasticizing must be uniform so the parison has no unmelt streaks. The second is melt temperature stability, held by closed loop zone control so the parison does not swell or sag between shots. The third is parison programming, where the MOOG servo assigns wall thickness along the drop to put material at the base and neck and trim it from the body.
Wall thickness tolerance is the metric that proves stability. A well tuned accumulator free cell holds the local wall within plus or minus 0.03 to 0.05mm from cavity to cavity, which keeps bottle weight in a tight band and prevents the thin shoulder that cracks at the cap or the thin base that leaks on a shelf. Neck specification matters just as much: a 24/410 or 20/410 finish must seat a pump or cap without cross thread, so the neck insert and the parison pinch at the head must be set with care. Apollo configures neck tooling to the customer’s cap or pump drawing so the bottle arrives fill ready.
Cycle and bottles per hour are where the business case lives. At 100ml with a four cavity mold, a 10 to 14 second cycle yields well over 1,000 bottles per hour, and an eight cavity 50ml mold pushes toward 2,500 bottles per hour. Output scales with cavity count and cooling efficiency, so the limiting factor is usually mold cooling and not the extruder. That is why Apollo pairs the machine with sound cooling advice: balanced water lines, adequate chiller capacity, and a mold designed for fast, even heat removal. A few seconds saved on cooling is more output than a bigger screw would give.
Utilities and footprint round out the plan. A 100ml cell needs clean dry compressed air at 6 to 10 bar for blowing and pneumatics, a chiller sized to the cooling load, and three phase power in the 22kW to 35kW installed range for the ABLB 55. The fully electric series trims the installed power and removes the oil cooler. None of this is unusual for a blow molding cell, which is part of the appeal: a travel size line slots into an existing cosmetics filling plant without special infrastructure.
Stable output also depends on what happens after the bottle leaves the mold. A well designed cell adds in mold cooling, a calibrated leak or vision check, and a neat trim path so the finished bottle needs no secondary finishing before filling. Because the accumulator free parison is uniform, the flash and tail at the parting line are predictable, which lets a simple rotary cutter or a deflasher remove them cleanly without nicking the body. When scrap is caught early by an in line check, a drift in wall or neck shows up as a trend rather than a pallet of rejects, and the operator corrects the parison program before material is wasted. This closed loop from extrusion to inspection is what separates a demo that looks good from a line that stays good across a million bottle run.
Selection Guide: Matching Output Target to the Right Apollo Model
The fastest way to choose is to start from the monthly volume and the bottle mix, then work back to cavities and model. A brand launching one 100ml SKU at a few hundred thousand bottles per year can run a single ABLB 55 with a two to four cavity mold and have room to grow. A contract filler serving many brands with mixed 50ml to 150ml volumes should standardize on ABLB 55 cells for throughput and add a small fully electric cell where oil free, premium runs are specified. The table below gives a plain recommendation map.
| Requirement | Recommended Apollo model | Configuration | Why |
|---|---|---|---|
| One 100ml SKU, entry volume | ABLB 55 | 2-4 cavities | Lowest cost, room to grow |
| Mixed 50-150ml, high volume | ABLB 55 (multiple cells) | 4-8 cavities | Best cavity headroom |
| Premium, oil free, GMP focus | Small fully electric series | 2-6 cavities | No oil, lower energy |
| Clear PETG serum bottles | ABLB 55 or small electric | Dried PETG, clean head | Glossy surface control |
| Hot fill PP bottles | ABLB 55 | PP setting, shrinkage mold | Temp stable platform |
| Future scale to 1L+ | ABLB 55 now, ABLD later | Shared tooling know how | Growth path in family |
This map keeps the decision simple: ABLB 55 for cost and volume, small fully electric for clean and premium, both accumulator free. Apollo, as a Wanplas factory, can also coordinate adjacent capabilities through the Wanplas group when a project needs more than the blow molder itself, so a filler can plan a complete line without sourcing mismatched equipment from unrelated suppliers.
Application Industries and End Products
Apollo extrusion blow molding machines serve food and beverage, daily chemical products, the chemical industry, building material, medical and pharmaceutical, automobile production, transportation, and cultural and sports goods. For the travel size cosmetic bottle project the most relevant of these are daily chemical products and medical and pharmaceutical, because both make small, presentation sensitive, compliance aware bottles. Daily chemical covers the lotions, shampoos, body washes, and toners that dominate hotel and airline amenity programs. Medical and pharmaceutical covers sample tubes, single use skincare, and small diagnostic containers where traceability and clean processing matter.
Concrete end products on an accumulator free 100ml cell include travel lotion bottles, facial emulsion bottles, essence and serum bottles, toner bottles, facial mist and spray bottles, sample shampoo and conditioner bottles, and small hand sanitizer bottles. Each of these benefits from the clean parison surface and tight wall control of continuous extrusion. Food and beverage appears when a brand extends into small sauce, honey, or drink shot bottles, where FDA and EU 10/2011 routes become central. The same machine that makes a cosmetic bottle can make a compliant food contact bottle with a material and setting change, which is useful for a filler serving both categories.
The travel size trend also overlaps with building material and automobile production in the form of small detailing, care, and cleaner bottles, though these are a smaller share. The point is that a 100ml accumulator free cell is not a one trick machine; it is a flexible small bottle platform that a filling plant can load with many SKUs across several industries, protecting the investment as demand shifts between product lines.
Service and सहायता for a Stable Production Start
Buying the machine is the easy part; running it stably for years is the real test. Apollo, as a Wanplas factory, backs its extrusion blow molding machines with the Wanplas group service promises, which are shared across the brand network. Before shipment, each machine is inspected and tested at the factory, with a running trial on the agreed mold and material so the buyer sees bottles before the machine leaves. This factory acceptance step catches mold, neck, and parison issues while they are cheap to fix.
On arrival, Apollo engineers support installation and commissioning on site, setting the machine to the local voltage, water, and air, and training the operators on parison programming, mold change, and daily maintenance. The Wanplas group policy includes USD 500 free parts every year, which covers the wear items a small bottle line consumes, and warranty replacement for damaged parts within the coverage period. Remote support lets the factory check PLC data and guide fault finding between visits, which shortens downtime when a setting drifts or a sensor faults.
Apollo also runs an open factory policy: customers are welcome to visit, watch a trial, and audit the production base before committing. For a travel size cosmetics program where the bottle touches a brand’s name, that transparency matters. The combination of factory testing, on site commissioning, free annual parts, training, and remote monitoring is what turns a specification sheet into a stable, low risk production line.
Frequently Asked Questions
What does “accumulator free” mean on a 100ml EBM machine?
It means the machine forms each parison by continuous extrusion from the die head without a storage cylinder that charges and dumps melt. For a 100ml bottle this gives a cleaner surface, finer wall control, and lower cost than an accumulator head, which is built for much larger parts.
Can the ABLB 55 really make a 100ml bottle, or is it too big?
Yes. The ABLB 55 is a compact member of the ABLB series and reaches its best economics on small bottles when run with multi cavity molds. A 100ml HDPE bottle runs comfortably in two to six cavities, and a 50ml bottle can run in up to eight cavities on the same platform.
Which material is best for travel size cosmetic bottles?
HDPE is the default for squeezable lotion and emulsion bottles because it is tough, low cost, and easy to process. PP suits hot fill or stiff wall needs, and PETG gives a clear, glossy premium look for serums and mists but needs drying and a clean head.
How many bottles per hour can a 100ml cell produce?
With a four cavity mold and good cooling, a 100ml HDPE bottle runs at about 1,000 to 1,800 bottles per hour on an ABLB 55 or small fully electric machine. An eight cavity 50ml mold can approach 2,500 bottles per hour. Cooling efficiency, not screw size, is usually the limit.
Do these bottles meet FDA and EU cosmetics rules?
The machine supports the routes. Resin choice follows FDA food contact requirements in the United States and EU 10/2011 in the European Union, while ISO 22716 structures good manufacturing practice in the filling environment. Bottles must be validated against the specific contents and market with the resin datasheet and test reports.
Is a fully electric machine worth the premium over the ABLB 55?
For a premium or clean room oriented cosmetic filler, yes: the fully electric series removes hydraulic oil, lowers energy per bottle, and runs quieter, which fits a GMP mindset. For a high volume, cost driven program, the ABLB 55 delivers the same parison quality with more cavity headroom and a lower entry cost.
What wall thickness tolerance can I expect?
A well tuned accumulator free cell holds local wall thickness within plus or minus 0.03 to 0.05mm from cavity to cavity. That tight band keeps bottle weight stable and prevents thin shoulders or bases that fail at the cap or on the shelf.
How fast can I change from a 100ml lotion bottle to a 150ml mist bottle?
Because the head is accumulator free and easy to purge, a changeover is mostly a mold swap plus a parison program and a few setpoint moves. With matched neck tooling and a prepared program, a trained operator can switch SKUs in a short stop, which suits fillers running many travel size variants.
Conclusion: A Stable, Low Cost Path to Travel Size Bottles
A 100ml accumulator free EBM machine is the natural choice for travel size cosmetic bottles because it matches the part size. Continuous extrusion from an accumulator free die head gives the clean surface, fine wall control, and steady cycle that small bottles demand, while avoiding the cost and surge of an accumulator built for drums and tanks. Apollo, a Wanplas factory with more than 20 years in extrusion blow molding and over 4,000 machines running in more than 90 countries, offers the ABLB 55 and the small fully electric series as proven platforms for this work.
The practical plan is straightforward. Standardize on the ABLB 55 for cost and cavity headroom, choose the small fully electric series where oil free, lower energy operation fits a premium or GMP oriented program, set the machine for HDPE, PP, or PETG with the right drying and temperature window, and use the MOOG servo parison programmer to lock wall thickness at the base and neck while trimming the body. Map your monthly volume to cavities with the selection guide, confirm output on a factory trial, and rely on the Wanplas group support of USD 500 free parts per year, on site commissioning, training, and remote monitoring to keep the line stable.
If you are planning a travel size cosmetic bottle line, send us your bottle volume, neck finish, target output, and material, and we will propose a tailored ABLB 55 or fully electric configuration with a confirmed specification and a factory trial. You are also welcome to visit our plant, watch a run on your mold, and review the process before you commit. Our team is ready to help you build a stable, cost effective travel size bottle production cell.
Beyond the machine itself, the success of a travel size program rests on the partnership around it. A bottle that looks right on the bench but drifts on the thousandth shot costs more than a slightly higher priced platform that stays in control. By choosing an accumulator free continuous extrusion machine, setting it with the right material window, and leaning on the Wanplas group’s testing, parts, and remote support, a cosmetics brand or filler gets a line that protects margin, meets compliance, and scales from a single 100ml SKU to a full 50ml to 150ml travel range without relearning the process each time.
