Stick Packing Machine — FAQ

This is the big decision, and getting it wrong means living with a machine that doesn't fit your product or your margins.

Factor	Stick Pack	Sachet
Shape	Long and narrow (15-80mm wide, 60-200mm long)	Wider, more rectangular (30-100mm)
Seals	Top, bottom & back seal (3-side)	3-side seal + back seal (4-side)
Best for	Free-flowing powders, granules, thin liquids	Any granule, powder, or liquid.
Dosing accuracy	±0.05g (99.2%) (Subject to material properties and the filler's dosing accuracy.)	±0.15g (96.8%) (Subject to material properties and the filler's dosing accuracy.)
Material usage	30-40% less than sachets	Baseline
Speed potential	300-1,200/min (multi-lane)	200-600/min

Go stick pack if: your product flows freely, you need tight dosing for pharma or supplements, material cost is a major line item, or your brand targets premium positioning. The 30-40% material savings alone can be $50,000-75,000/year at 10 million units.

Go sachet if: your product is a paste, cream, or thick liquid with particulates. Stick pack filling tubes are narrow — anything that doesn't pour easily will clog them repeatedly.

The mistake we see most often: buyers choose sachet because it's what they've always used, missing out on the material savings and dosing precision of stick packs.

It comes down to flow characteristics, not just the product category. "Powder" isn't enough information — sugar flows like water, protein powder clumps, and flour creates dust clouds that ruin seals.

Free-flowing powders (sugar, salt, instant coffee, granulated sweeteners): These run beautifully. Auger fillers dose them precisely at high speed.

Sticky or hygroscopic powders (protein powder, milk powder): Need an auger with agitation in the hopper. Without agitation, the powder bridges above the auger and you get empty sticks.

Very fine powders (flour, cocoa, pharma blends): Dust is your enemy. Fine powders create airborne dust during filling that settles on the seal area. You need dust extraction — not optional, required.

Thin liquids (sauces, liquid sweeteners, energy drink concentrates): Piston pump filling handles these well. The key is drip-proof nozzles so liquid doesn't contaminate the seal area.

These products may need a customized machine: thick pastes (peanut butter, toothpaste), chunky products (salsa with visible pieces), and anything that doesn't flow under gravity through a narrow tube. These belong in a sachet or premade pouch machine.

Send us your product and film — we'll test it on our machine and send you video of the actual run. This is free and eliminates the gamble.

Cost Item	Typical Range	Notes
Machine (4-6 lane)	$15,000-30,000	Entry-level, 300-500/min
Machine (8 lane)	$30,000-70,000	Mid-range, 500-800/min
Machine (10-12 lane)	$70,000-200,000+	Industrial, 800-1,200/min
Shipping & import	$2,000-8,000	Sea freight + customs + duties
Installation	$1,500-5,000	Usually 2-3 days on-site
Operator training	Included or $500-2,000	1-2 days
Roll stock film (ongoing)	$0.01-0.08/stick	30-40% cheaper than sachet film
Dust extraction system	$1,000-3,000	Required for powder products
Spare parts kit	$800-2,000	Sealing jaws, Teflon tape, augers, belts
Annual maintenance	$1,000-3,000	Wear parts, calibration, service

The surprise savings most people miss: stick packs use 30-40% less film material than sachets. At 10 million units per year, that's $50,000-75,000 in annual material savings. The machine can literally pay for itself on material savings alone.

Labor advantage: 1-2 operators per shift for stick pack vs. 2-3 for sachet. That's $22,500-27,500/year in labor savings.

Lanes	Speed	Price Range	Best For
4-6	300-500/min	$15,000-30,000	Small-medium operations, startups, multiple daily changeovers
8	500-800/min	$30,000-70,000	Growing brands, mid-volume contract packaging
10-12	800-1,200/min	$70,000-200,000+	Large-scale production, high-demand SKUs

The right-sizing rule: Take your daily production target, divide by your available production hours, then add 20% buffer for changeovers and minor stops. That gives you your minimum sticks-per-minute requirement.

Example: you need 200,000 sticks/day in a single 8-hour shift. That's 25,000/hour or about 420/minute. Add 20% buffer = 500/min. A 6-lane machine (up to 500/min) is your minimum. An 8-lane gives you room to grow.

Gotcha: a 10-lane machine running at half capacity is less efficient than a 6-lane running at full capacity. The overhead of managing more lanes adds complexity. Buy the lane count that matches your real volume, not your dream volume.

1. Your product — what is it? Send us a photo or video of the product being poured or scooped
2. Product characteristics — bulk density, particle size, moisture content, flowability (does it pour freely or clump?)
3. Fill weight per stick — target weight and acceptable tolerance
4. Stick dimensions — width and length you want (or send a competitor's stick pack as a sample)
5. Daily or monthly production target — so we can size the lane count correctly
6. Film requirements — barrier needs, sustainability goals (mono-material recyclable?), printing
7. Your current situation — are you outsourcing packaging? upgrading from sachet? new product launch?
8. Certification requirements — CE, FDA contact compliance, GMP, pharma validation

A 30-minute call with this information saves weeks of back-and-forth emails. We can usually give you a specific model recommendation and quotation within 24 hours.

Common complaints and how Lintyco is different:

• "The demo video looked great but the actual machine was terrible" — We run a 48-hour continuous test with YOUR product before shipping. You get video of the actual run, not a generic demo. We also do live video calls where you watch the machine in real-time.
• "After-sales support disappeared after I paid" — Dedicated support team. WhatsApp/WeChat response within 4 hours during business hours. Remote video support for troubleshooting. We don't ghost you.
• "Parts don't fit, tolerances are garbage" — Omron PLCs, Siemens contactors, SMC pneumatics, name-brand components. SS304 stainless steel frame, CNC laser-cut. Not hand-fabricated.
• "The manual was unreadable translated garbage" — English documentation with actual photos (not confusing diagrams), plus video tutorials for every maintenance procedure.

Our suggestion: ask for references in your region. Talk to our existing customers directly. That tells you more than any brochure.

This is the most misleading number in packaging machinery. The "up to" speed is a dry cycle rate — the machine running empty film with no product. Real-world speed depends on product type, fill weight, stick length, and film type.

Realistic production speeds we see in the field:

Product	Fill Weight	Lanes	Actual Speed
Instant coffee	2g	8	550-650/min
Protein powder	25g	6	280-380/min
Sugar substitute	1g	10	800-1,000/min
Liquid sauce	10ml	8	450-550/min
Spice blend	3g	6	350-450/min

Rule of thumb: expect 80-85% of the rated maximum in sustained production. If you need 600/min to hit your daily target, buy a machine rated for at least 720/min.

Always ask for a test run with your actual product. We do this for every serious inquiry — you see the real speed, not a theoretical number.

Different product requirements call for different-accuracy fillers.

Stick pack machines are the precision champions of single-serve packaging. Servo-driven auger fillers achieve ±0.05g accuracy, which is 99.2% accuracy on a typical 5g fill. Compare that to sachet machines at ±0.15g (96.8%).

Why the difference? Stick pack filling tubes are narrow and the drop distance is short. Product doesn't scatter on the way down — it goes exactly where it should.

For pharmaceutical customers: we can configure check-weigher feedback integration. The check-weigher samples stick packs continuously and sends correction signals to the auger servo. If the trend drifts heavy, the auger automatically reduces rotation. This gives you documented, auditable accuracy with full traceability.

What affects accuracy in practice:

• Hopper level below 30% — accuracy drops as product column weight decreases. Keep the hopper loaded.
• Auger wear — inspect quarterly. A worn auger with >0.5mm gap from the tube wall will drift.
• Product density changes — if your powder absorbs moisture overnight, same volume = more weight. Calibrate every shift start.

Stick pack machines range from 4 to 12 lanes. Each lane is essentially an independent filling station that shares the same film unwind roll and drive system.

4-6 lanes: The film roll is slit into 4-6 narrow strips, each passing through its own forming collar. Each lane has its own filling tube and auger or pump. The sealing jaws cut and seal all lanes simultaneously in a single stroke.

8 lanes: Same principle, more lanes. Requires wider film roll stock. This is the most popular configuration for mid-volume operations.

10-12 lanes: Maximum throughput. Requires significant floor space and wide film rolls. Individual lane monitoring becomes more important because a problem on one lane affects the entire sealing cycle.

Can you deactivate lanes? Yes. Most modern machines let you shut down individual lanes through the HMI. If you have an 8-lane machine but only need 500/min for a smaller run, you can run 4-6 lanes and save film.

Gotcha on film width: different lane counts require different film roll widths. If you switch from 8 lanes to 6 lanes for a smaller run, you need a different width film roll. Factor this into your film ordering.

Width: 15mm to 80mm  |  Length: 60mm to 200mm

Common sizes by application:

Application	Width	Length	Fill Weight
Sugar substitute / sweetener	15-20mm	60-90mm	0.5-2g
Instant coffee	22-30mm	80-120mm	1.5-5g
Protein powder	35-50mm	120-160mm	15-30g
Pharmaceutical dose	20-35mm	80-130mm	1-10g
Liquid sauce	30-45mm	100-150mm	5-15ml
Spice / seasoning	20-30mm	80-110mm	2-5g

Changing dimensions requires swapping forming collars and adjusting seal jaw positions — this is part of the 45-60 minute changeover process.

What most suppliers won't tell you: a machine performs best in the middle of its dimensional range. If you're running sticks at the extreme ends (15mm wide or 80mm wide), you may see more film tracking issues. Tell us your exact target dimensions so we confirm the right machine model.

Film Type	Seals Well?	Best For	Watch Out For
PET/PE laminate	Yes	General food, powders	Standard workhorse — hard to go wrong
Aluminum foil laminate	Yes	High-barrier pharma, moisture-sensitive	Requires precise temperature control
OPP/PE	Yes	Economical packaging	Lower barrier — not for moisture-sensitive products
Paper/foil/PE	Yes	Premium look, coffee, tea	Paper layer needs careful humidity control
Mono-material PE (recyclable)	Usually	Sustainability-focused brands	Narrower sealing window — temperature must be exact

Film thickness: 50-120 microns is the typical range. Thinner film runs faster but tears more easily. Thicker film is more robust but needs higher seal temperatures and longer dwell times.

Common film problem: switching film suppliers without recalibrating seal temperature. Different suppliers use slightly different resin blends, and a 10-degree difference in optimal seal temperature can be the difference between perfect seals and a rejected batch.

For powder products: make sure your film has adequate barrier properties. If the film allows moisture transmission, your product clumps inside the stick and the customer can't pour it out.

No. Each machine's filler and overall structure are customized to the specific material, so the filler cannot be switched out or reconfigured to a different product.

Changing stick dimensions requires physical tooling changes plus recipe updates:

1. Swap forming collars — each stick width needs its own set of collars. Loosen bolts, remove old collars, install new ones, tighten. (15-20 minutes)
2. Adjust or replace sealing jaws — if the cut length changes, jaw positions need adjustment. For significant length changes, different jaw sets may be required. (10-15 minutes)
3. Change filling tubes and augers — wider sticks need wider filling tubes. Small width changes may just need auger adjustment; large changes require different tube sets. (10-15 minutes)
4. Update the HMI recipe — fill weight, seal temperature, film feed length, and speed. If the recipe is already saved, just recall it. (2 minutes)
5. Run test samples — produce 20-30 sticks and check fill weight, seal quality, and dimensions. Adjust as needed. (10 minutes)

Total: 45-60 minutes for an experienced operator.

Pro tip: keep pre-assembled change parts kits for each product. All the collars, tubes, and augers for Product A go in a labeled bin. Swap the entire set instead of hunting for individual parts. This alone can shave 15 minutes off changeover.

Fill weight is adjusted through the HMI touchscreen — you're changing the number of auger rotations (for powders) or piston stroke volume (for liquids):

1. Enter the target fill weight in the recipe
2. Run 10 test sticks and weigh each on a calibrated scale
3. If the average is over/under target, adjust the rotation count or stroke volume by small increments
4. Re-test until every stick is within ±0.05g of target
5. Save the recipe with a clear name ("Coffee_2g_22mm")

Critical point: different products have different bulk densities. A 5g fill of instant coffee and a 5g fill of protein powder require different auger rotation counts because the powder packs differently. Every new product needs its own calibration.

If fill weight drifts over time: check auger wear (gap >0.5mm from tube wall = replace), hopper level (below 30% = inconsistent), and product moisture (absorbed moisture = higher density = heavier fills at same volume).

Some models have this function. On Lintyco machines, you can activate or deactivate individual lanes through the HMI. This is useful when:

• You're running a smaller batch and don't need full capacity
• One lane has a mechanical issue — shut it down and keep the others running
• You're transitioning between products and want to test on one lane before running all

To deactivate a lane: go to the lane configuration screen, tap the lane number to deactivate. That lane's filling tube stops dosing, but the film still runs through it (it just produces empty sticks on that lane).

To properly reduce lanes without waste: you need to change the film roll to a narrower width that matches the active lane count. If you just deactivate lanes but keep the full-width film, the inactive lanes still consume film and produce empty waste sticks. For short runs this might be acceptable. For longer reduced-lane production, change the film.

Same product, different fill weight: 15-20 minutes. Just recall the recipe, run test sticks, verify weight. No tooling changes.

Same product family, different flavor/color: 20-30 minutes. Recall recipe + quick cleaning of product contact surfaces to prevent cross-contamination.

Different stick size (width or length change): 45-60 minutes. Full tooling swap.

Different product type (powder to liquid or vice versa): 2-3 hours. Swap entire filling system plus thorough cleaning.

The gotcha: changeover time is only part of the equation. The real cost is the product and film wasted during test runs. Budget 50-100 test sticks per changeover for size changes, and 200+ for product type changes.

How to minimize changeover impact: group your production schedule so that similar products run back-to-back. Run all your 22mm-wide coffee flavors on Monday, then do one changeover to 30mm protein powder on Tuesday. Don't bounce between sizes and products every two hours.

On a standard stick pack machine, all lanes run the same product. They share one hopper and one film roll. This is by design — it's how the machine achieves such high throughput.

Advanced multi-product capability: some high-end models with independent servo-driven filling systems can run different fill weights on different lane groups. This requires divided hoppers with separate auger controls. But running genuinely different products on different lanes simultaneously is rare and complex — different products may need different seal temperatures, and downstream handling becomes a nightmare.

For most factories: sequential production is more practical. Run Product A on all 8 lanes for 4 hours, change over, run Product B on all 8 lanes for 4 hours. This is simpler to manage, easier to quality-control, and more cost-effective.

Stick pack machines have more sealing surfaces and filling tubes to maintain than a standard VFFS, because every lane is its own mini packaging system.

When	What	Time
Every shift	Clean seal bars on all lanes. Check film alignment. Inspect filling tubes for product buildup.	15-20 min
Weekly	Lubricate linear guides. Check forming collar surfaces for wear grooves. Inspect all auger screws. Drain air filters.	30-45 min
Monthly	Calibrate fill weight on each lane individually with test scale. Check seal bar alignment across all lanes. Full cleaning of all product contact surfaces.	1-2 hr
Quarterly	Replace Teflon tape on all seal bars. Check drive belt tension. Inspect all cutting blades. Verify temperature controller accuracy.	2-3 hr
Annually	Full inspection: bearings, servo motors, forming collar condition, auger-to-tube clearance. Replace all wear parts. PLC battery check.	Half day

What skipping maintenance actually costs:

• Skip daily seal cleaning → powder dust builds up → 5-10% seal failure rate → product returns
• Skip monthly calibration → fill weight drifts 3-5% per lane → regulatory audit failure
• Skip Teflon tape replacement → seal bars burn through → $500+ per lane for new bars vs. $20 for tape
• Skip auger inspection → worn auger overfills by 5-8% → product giveaway on expensive formulations

The math: a $20 Teflon tape replacement prevents a $500 seal bar destruction prevents thousands of rejected sticks prevents a customer complaint that costs you a contract. Maintenance is the cheapest thing you'll ever do.

Cleaning the filling system is critical for dosing accuracy and preventing cross-contamination. Powder residue inside a tube changes the effective volume, which changes your fill weight.

After every production run:

1. Empty the hopper completely — run the augers until no more product comes out
2. Remove auger assemblies (most modern machines have tool-free removal — loosen one clamp and pull)
3. Remove filling tubes from the forming collars
4. Wash all components with warm water and food-grade cleaning solution
5. Use a bottle brush or compressed air to clear residue from inside the tubes
6. Dry thoroughly before reassembly — residual moisture will cause powder to clump on the next run

Weekly deep clean:

• Disassemble auger from housing and clean all surfaces
• Inspect auger flighting for wear — if the gap between auger and tube wall exceeds 0.5mm, replace the auger
• Clean inside the hopper thoroughly, especially corners where powder can accumulate

For allergen changeover: full disassembly and wash of ALL product contact surfaces. 1-2 hours. Document it in your allergen control log.

Common mistake: reassembling wet augers and tubes. Even small amounts of moisture cause powder to stick, which creates inconsistent fills and eventually blocks the tube. Dry everything completely.

A stick pack machine has multiple sealing jaw pairs (one per lane or shared across lane groups). More sealing surfaces = more maintenance points, but the principles are the same:

Daily:

• Inspect all seal bars for product residue. Clean with soft cloth and isopropyl alcohol.
• Check that all sealing surfaces are clean — a single contaminated seal bar produces leaking sticks on that lane.

Weekly:

• Verify seal temperature accuracy using a contact thermometer. Compare actual temperature to the HMI set point for each lane. A 10-degree difference between lanes means one lane is under-sealing while another is burning film.
• Check seal bar alignment — upper and lower bars must be parallel.

Monthly:

• Inspect Teflon tape or coating on all seal bars. Replace any that show scoring, peeling, or discoloration.

Quarterly:

• Replace all Teflon tape preventively, even if it looks okay. It degrades gradually and you won't notice the slow decline in seal quality.
• Check seal bar pressure springs or pneumatic cylinders. Uneven pressure across lanes is a sneaky cause of inconsistent seal quality.

The multi-lane challenge: when one lane has a seal problem, operators sometimes increase the global seal temperature to compensate. This over-seals the good lanes while potentially fixing the problem lane. Always troubleshoot the individual lane first.

Dust in the seal area is the single biggest production killer on stick pack machines running powders. Powder dust floats up during filling, settles on the film edges where the seal forms, and prevents proper film fusion.

Prevention stack (in order of effectiveness):

1. Dust extraction system — not optional for powder products. A vacuum system positioned near the filling point captures airborne dust before it reaches the seal area. Clean the filters weekly — clogged filters kill suction.

2. Filling tube design — use anti-dust funnel attachments that direct powder flow inward and downward, away from the film edges.

3. Fill timing adjustment — set the filling to complete with enough pause time before the sealing jaws close. This lets the dust settle inside the stick instead of being trapped in the seal area. Yes, this slows you down slightly. Leaking sticks slow you down more.

4. Fill level control — don't overfill. When the product level in the stick is too close to the top seal, any settling or shifting pushes product into the seal zone. Leave adequate headspace.

5. Ambient humidity control — in very dry environments, powders create more airborne dust. Maintaining 40-60% relative humidity in the packaging area can reduce dust significantly.

Part	Quantity	Cost	Why You Need It
Teflon tape (all seal bars)	3-5 sets	$15-25/set	Replace every 2-4 weeks; the #1 wear item
Sealing jaws	1 set per 4 lanes	$200-400/set	Replace annually or if damaged
Auger screws	1 per lane	$80-150 each	Wear affects dosing accuracy
Forming collar inserts	1 set	$100-200/set	Grooves from film friction cause tracking issues
Cutting blades	2-4	$30-60 each	Dull blades = ragged cuts
Air filters	5-10	$8-15 each	Clogged filters cause pneumatic failures
Solenoid valves	2-3	$30-80 each	Control pneumatic operations
Drive belts	2	$30-60 each	Stretch and wear over time
Photoelectric sensors	2	$40-80 each	Film registration and position detection
HMI fuses	5	$2 each	Cheap insurance

Total recommended kit: $1,000-2,000 — covers 95% of the failures that cause unplanned downtime.

Lintyco ships common spare parts from our warehouse within 24 hours via DHL Express (3-5 days to most countries). For critical production lines, we also offer a consignment program where we pre-ship parts to your facility at no charge — you only pay when you use them.

Leaking sticks are almost always a seal problem. Here's the systematic approach:

1. Identify which lanes are leaking — if it's all lanes, the problem is global (temperature, film, or product). If it's specific lanes, the problem is local (seal bar contamination or alignment on those lanes).

2. Run empty film test — seal empty film with no product at your current temperature settings. If the empty seals hold, the problem is product contamination in the seal area. If empty seals also leak, the problem is temperature, pressure, or seal bar condition.

3. Check seal area contamination — the #1 cause. Product dust on the film where the seal forms prevents proper bonding. Look at the film edge under good light. See powder? Your dust extraction isn't doing its job, or your fill level is too high.

4. Check seal temperature — too low = weak seal, too high = film distortion that looks like a seal but fails under pressure. Adjust in 5-degree increments.

5. Check seal bar condition — remove Teflon tape and inspect the bar surface. Pitted, discolored, or uneven bars create inconsistent pressure. Replace worn tape.

6. Check dwell time — if you increased speed recently, the sealing jaws may not be in contact long enough. Slower speed or longer dwell time fixes this.

Quick diagnostic: hold a leaking stick under gentle pressure (squeeze it). If the seal opens at a specific point, that's where the contamination or damage is. If the whole seal gives way, the temperature or dwell time is the issue.

This is a common multi-lane problem. Each lane is essentially its own filling station, and small differences compound:

1. Check for clogged filling tubes — even a thin layer of product residue inside one tube reduces the effective volume. Clean all tubes and retest.

2. Inspect auger screws for uneven wear — if Lane 3's auger has 0.8mm clearance to the tube wall and Lane 5's has 0.3mm, Lane 3 is underfilling. Replace worn augers.

3. Verify hopper product level — if product feeds from a central hopper, the lanes closest to the feed point get more consistent product flow. Lanes at the far ends may see slight starvation. Keep the hopper above 30% full.

4. Check forming shoulder alignment — a misaligned forming shoulder on one lane changes how product drops into the stick, causing scatter that looks like weight variation.

5. Individual lane calibration — on machines with independent servo fillers, calibrate each lane separately. Don't assume one global setting is perfect for all lanes — there's always slight mechanical variation.

The fix for persistent drift: if one lane consistently reads high or low after all the above checks, adjust that lane's individual servo setting in the HMI. Most machines allow per-lane trim adjustments. Save the corrected recipe.

Wrinkled seals that still hold are usually a cosmetic issue, but on premium stick packs (pharma, high-end coffee brands), cosmetic IS a quality issue:

Temperature too high: the most common cause. The film shrinks around the seal line when overheated. Lower temperature in 5-degree steps until the wrinkles disappear but the seal still passes the pull test.

Seal pressure too high: the bars squeeze the film too hard, causing material displacement that shows as wrinkling. Reduce pneumatic pressure slightly.

Film tension: if the film is stretched too tight as it feeds through the forming collars, it relaxes after sealing and creates wrinkles. Reduce film unwind tension.

Uneven seal bar surfaces: worn or contaminated seal bars create uneven pressure. One side of the seal gets squeezed more than the other, causing a wrinkled appearance. Clean and inspect the bars.

Film type mismatch: some films (especially recycled-content and mono-material recyclable films) have a narrower sealing window. They wrinkle if you're even 10 degrees outside their optimal range. Ask your film supplier for the exact temperature range and stick to it.

The pull test: grab both sides of the seal and pull hard. If the film tears (not at the seal line, but elsewhere), the seal is good regardless of appearance. If the seal opens, it's not just cosmetic — it's a functional failure.

Film breaks stop all lanes simultaneously and create a mess. Common causes:

1. Excessive film tension — the unwind system is pulling too hard. Check the tension setting and reduce it. The film should feed smoothly without stretching.

2. Misaligned forming collars — if the collars aren't perfectly aligned, the film scrapes against edges instead of gliding through. This creates stress points that tear. Check collar alignment with a straightedge.

3. Sharp edges or burrs — inspect the entire film path (rollers, guides, collar entry points) for sharp edges. Even a small burr on a forming collar will slice through film at production speeds. Deburr with fine sandpaper.

4. Film quality issues — cheap or improperly stored film has weak spots, especially at the edges. If your film roll has edge damage from shipping or storage, those tears propagate during production. Inspect each roll before loading.

5. Static electricity — in dry environments, static builds up and causes the film strips to stick together or attract to machine components. Anti-static bars on the film path solve this.

6. Wrong film specification — thin film (under 60 microns) on a high-speed 10+ lane machine generates more stress than it can handle. Match film thickness to machine speed.

Emergency fix: if breaks happen repeatedly, slow the machine by 20%. This reduces film stress and buys you time to diagnose the root cause without stopping production entirely.

Length variation between lanes means the film isn't feeding evenly across all lanes:

1. Uneven film slitting — the master film roll is slit into individual lane strips by knives. If the knives aren't perfectly aligned, some strips are wider than others. Wider strips have more friction through the forming collars and feed slower = shorter sticks. Check and adjust slitting knife alignment.

2. Roller tension differences — film guide rollers across the width of the machine may have different friction levels. A worn roller on one side creates more resistance. Clean and inspect all rollers.

3. Servo calibration drift — on machines with independent lane servo motors, the calibration can drift over time. Recalibrate each lane's servo to ensure equal pull-down distances.

4. Film thickness variation — film isn't always perfectly uniform across its width. Edge lanes may see slightly different material characteristics than center lanes. This is a film supplier quality issue.

5. Seal jaw timing — if the sealing jaws don't close simultaneously on all lanes, some lanes get sealed at a different film position. Check jaw timing and adjust.

Quick check: measure 10 sticks from each lane with a ruler. If the variation is consistent (Lane 1 is always 2mm short, Lane 4 is always 1mm long), it's a calibration or mechanical adjustment. If it's random, it's more likely film quality or intermittent mechanical drag.

When standard dust extraction isn't enough, here's the escalation path:

Level 1 — Verify your dust extraction is actually working:

• Check that the vacuum pump is running at rated capacity
• Clean or replace clogged filters — this is the most common cause of "my dust extraction stopped working"
• Verify suction nozzle positioning — they should be within 20-30mm of the filling point

Level 2 — Reduce dust at the source:

• Lower the drop distance between filling tube outlet and the bottom of the stick (less falling distance = less dust)
• Reduce fill speed slightly — faster filling creates more airborne dust
• Use an anti-dust funnel collar that directs powder flow inward
• Don't overfill — product near the top of the stick creates more dust during settling

Level 3 — Add a pre-seal cleaning step:

• Some machines offer an air-knife system that blows residual dust off the film edges immediately before the sealing jaws close
• A mechanical dust wiper (felt or brush) positioned just above the seal point can catch residual particles

Level 4 — Adjust the product or environment:

• If your powder is extremely fine, a slight moisture increase (within product specs) can reduce dustiness
• Control ambient humidity to 40-60% — very dry air makes powders dustier
• Consider a different grade or granulation of the product if dust is inherent to the material

The last resort: if nothing works, the product may simply not be suited to stick pack format. Extremely dusty powders sometimes need a sachet format with its wider seal area and greater tolerance for contamination.

Lanes	Speed	Price Range	Sweet Spot For
4 lanes	300-400/min	$15,000-25,000	Startups, small brands, low-volume premium products
6 lanes	400-500/min	$20,000-30,000	Growing brands, contract packagers running multiple SKUs
8 lanes	500-800/min	$30,000-70,000	Mid-to-high volume, established brands
10 lanes	800-1,000/min	$70,000-120,000	High-volume production, single-SKU long runs
12 lanes	1,000-1,200/min	$120,000-200,000+	Maximum throughput, industrial-scale operations

What drives price within each range:

• Servo vs. mechanical drives (servo adds $5,000-15,000 but gives better accuracy and recipe management)
• Filling system type (auger for powders is standard; liquid piston pumps add cost)
• Brand-name components (Omron, Siemens, SMC vs. generic)
• Custom engineering for non-standard products or film types
• Integration requirements (check-weigher feedback, upstream/downstream equipment)

What to watch out for: some suppliers quote a low base price and charge extra for things that should be standard — safety guards, dust extraction, HMI touchscreen, even the filling system. Always ask for an all-inclusive quote.

This is where stick packs really win. The narrower 3-side-seal format uses significantly less material per unit:

Factor	Stick Pack	Sachet	Difference
Material per unit (5g powder)	~0.8g film	~1.2g film	30-40% less
Film cost per 10M units	$80,000-120,000	$120,000-170,000	$40,000-50,000 saved
Annual material savings (10M units)	—	—	$50,000-75,000
Energy consumption	Baseline	15-20% higher	Lower utility costs
Operators per shift	1-2	2-3	1 fewer worker

At 10 million units per year, stick packs save $50,000-75,000 on material alone. That's before counting the labor savings ($22,500-27,500/year) and energy savings (15-20% lower).

For a 6-lane machine at $25,000: the material savings alone pay for the machine in 4-6 months.

For an 8-lane machine at $50,000: material + labor savings pay for the machine in 7-10 months.

Hidden savings: tighter dosing accuracy (99.2% vs. 96.8%) means less product giveaway. On expensive pharmaceutical or supplement formulations ($50-200/kg of active ingredient), that 2.4% accuracy improvement prevents thousands of dollars in product giveaway per year.

Scenario: Protein powder, 25g stick, 5 million units/year, switching from sachet to stick pack

Factor	Annual Amount
Material savings (35% less film)	$30,000-40,000
Labor savings (1 fewer operator/shift)	$22,500-27,500
Product giveaway reduction (tighter accuracy)	$8,000-15,000
Energy savings	$2,000-4,000
Total annual savings	$62,500-86,500

Machine investment: 8-lane stick pack machine at $45,000 (mid-range)
ROI: 6-9 months

Even with conservative estimates, most operations achieve full ROI within 12-18 months. The more units you produce, the faster the payback — material savings scale linearly with volume.

The intangible ROI: stick packs command premium positioning on the shelf. Brands consistently report 10-15% price premium acceptance for stick pack vs. sachet format in consumer testing. If that translates to even $0.01 more per unit at retail on 5 million units, that's $50,000 in additional revenue.

Included with purchase:

• Installation and commissioning (2-3 days on-site)
• Operator training (1-2 days)
• English documentation with step-by-step photos
• Video tutorials for maintenance procedures
• 1-year warranty on manufacturing defects

When something goes wrong:

• Phone/WhatsApp: +86 138 6882 7095
• Email: info@lintyco.com
• Remote video diagnosis: schedule a video call, point your phone at the machine, our technician walks your operator through the fix. This resolves 70-80% of issues without a site visit.
• On-site technician: for issues that can't be fixed remotely. Within China: 1-3 days. Internationally: 5-10 days depending on logistics.
• Emergency spare parts: shipped from our warehouse within 24 hours via DHL Express.

Preventive maintenance packages: Lintyco offers three levels of service plans — whether you have one machine or a hundred. Each includes onsite visits from a certified technician, comprehensive inspection, and a wear parts report. The goal: predictable maintenance costs instead of surprise breakdowns.

Genuine spare parts: we use high-quality German and Japanese materials. Genuine parts ship within 24 hours. Don't risk your machine with aftermarket parts that don't match our tolerances.