filament spool winder
Worth a lookShows beatable incumbent ratings (3.3★), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Quality gap
Incredible3.3★avg incumbent rating — lower means beatable quality
Review moat
Incredible97.53avg incumbent reviews — the moat a new listing must climb
Brand share
Great43%top-5 brand share — no brand owns this niche
Competition
Great31%top-5 click share — an open shelf
Avg price
Good$115.96avg listing price — sweet spot $15–$100
Price range
Good$9.36–$176.13cheapest to priciest tracked listing — scored on the share inside $15–$100
Returns
Okay3.0%return rate — above 5% kills the launch gate
Market size
Okay$250K$250K/yr · 127K searches
Conversion
Bad1.7%search→purchase rate — share of searches ending in a sale
Growth
Bad-18.9%90-day search growth — must beat 0% to launch
According to Flapen's Amazon United States niche tracking, filament spool winder is a $250K/yr Amazon United States market (127K searches/yr). The top 5 brands hold 43% of demand. Verdict: Worth a look — 59/100.
Data updated Aug 6, 2026 · scored weekly · How we score niches
filament spool winder market data
- Units sold / yr
- 1K–2K
- avg 0–100/product
- Revenue / yr
- $145K–$174K
- units × avg price
- Conversion rate
- 1.7%
- Avg BSR
- #1,825
- Page quality
- 0%
- Prime
- 62%
- Sponsored
- 84%
- Out of stock
- 13.7%
- Avg brand age
- 19 months
- Avg seller age
- 203 days
Competition & brand share
Clicks spread well past the top 5 (31% combined) — an open shelf where new products get seen.Brands
29 falling
Sellers
55
Top-5 brand share
43%
Top 20: 93%
Top-5 click share
31%
Top 20: 73%
Open market
51%
- GOWENIC11%
- Zelvoro9%
- Morzhunis8%
- YUEHOUGYUSHOP8%
- Generic7%
- SUNLU6%
Demand
Weekly Amazon search volume, last 36 weeks — -18.9% search growth over the last 90 days.Top filament spool winder search terms
- filament respooler38K/yr
- filament spool winder28K/yr
- filament spool rewinder7K/yr
- filament winder17K/yr
- filament spooler7K/yr
- filament respooler machine6K/yr
- filament rewinder5K/yr
- respooler 3d filament5K/yr
- respooler3K/yr
- 3d filament respooler4K/yr
Top filament spool winder products on Amazon
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
GOWENIC 3D Printer Filament Respooler Hand Cranked 1kg Filament Rewinder 3D Printer Spool Rewinder Welding Thread Winder with Smart Tension Control Manual Spool Winder
GOWENIC$62.273.8★5 rev
SUNLU Official Filament Connector Fast Heating Filament Splicer for 3D Printer Filament 1.75mm Up to 240C Compatible with PLA PETG TPU ABS PA Nylon Easy to Use Pack with 200PCS PTFE Sleeve
SUNLU$37.384.1★1,518 rev
Zelvoro 3D Industrial Filament Respooler Machine 3D Printer Winder Machine
Zelvoro$147.633.5★9 rev
MarsWork Quick-Swap Reusable Spool for Refill Filament Two-Finger Press Design Compatible with Bambu Lab 3D Printers
MarsWork$15.374.8★363 rev
3D Industrial Filament Respooler Machine 3D Printer Winder Machine
Morzhunis$128.081.0★2 rev
Newest
by launch date
Smart Filament Respooler Automatic Start Stop Spool Winder with Sensor Detection Belt Gear Drive Rewinds PLA ABS PETG TPU Nylon & Welding Wire Tangle-Free Fully Assembled (White)
Generic$137.731 rev
Electric 3D Industrial Filament Respooler Machine 3DPrinter Winder Machine
Zelvoro$154.282 rev
3D Industrial Filament Respooler Machine 3D Printer Winder Machine
Morzhunis$128.082 rev
3D Industrial Filament Respooler Machine Electric 3D Printer Winder Machine for 20cm Spools Wrap Neatly Without Tangling Less 2mm Wire/Welding Filament Spooler Winder
Zelvoro$157.792 rev
Electric 3D Filament Respooler Manual & Motorized Filament Spool Winder for Rewinding 3D Printer Filament Fits Up to 20cm Spools
Siftary$157.831 rev
Trending
90-day click momentumElectric 3D Industrial Filament Respooler Machine 3DPrinter Winder Machine
Morzhunis$155.582.3★
Smart Filament Respooler Automatic Start Stop Spool Winder with Sensor Detection Belt Gear Drive Rewinds PLA ABS PETG TPU Nylon & Welding Wire Tangle-Free Fully Assembled (White)
Generic$137.735.0★
3D Filament Rewinder Spool Respooler Smart Auto Start Stop Design Tangle-Free Winding Compatible with PLA ABS PETG TPU 3D Printer Filament(Yellow red Gray)(Gray)
YUEHOUGYUSHOP$136.892.9★
Electric 3D Industrial Filament Respooler Machine 3DPrinter Winder Machine
Zelvoro$154.281.0★
Electric 3D Filament Respooler 3D Industrial Filament Respooler Machine Automatic Spool Winder Machine with Smart Start & Stop Adjustable Tension Control Wrap Neatly Without Tangling
Generic$135.821.0★
What buyers say about filament spool winder
What buyers praise and complain about, mined from review topics.What buyers love
“Easy to use”
“Excellent quality”
“Great price”
“Works as advertised”
“it is doing quite well for my use”
“it heats evenly”
“Fits great”
“Sturdy”
“Winding is even, no loose layers, no tangles on reprinting”
“I recognized the colors”
What buyers complain about
“barely works”
“Cheaply made”
“It heats up”
“Difficult to use”
“Not as pictured”
“Easily broken”
“frustrating for the price”
“Broke after first use not very sturdy”
“do not fit”
“instructions are poor at best”
Top return reasons
Common questions
- Is filament spool winder profitable to sell on Amazon United States?
- The niche generates $250K/yr across 45 tracked products. 3 of 40 products launched in the last 360 days are still selling. 90-day search growth is -18.9%. Flapen's verdict: Worth a look (59/100).
- How competitive is the filament spool winder niche?
- 29 brands and 55 sellers compete. The top 5 products take 31% of clicks and top 5 brands hold 43% of demand.
- What do buyers complain about in filament spool winder?
- Top complaints mined from reviews: Functionality-Overall, Quality-Overall, Heating. The return rate is 3.0%.
- What does it cost to enter the filament spool winder niche?
- Listings span $9.36–$176.13; the average listing price is $115.96 (sweet spot $15–$100). The average incumbent carries 98 reviews — the moat a new listing must climb.