SUNLU PLA+ Refill 4KG Review: Specs, Pros and Cons
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This sunlu pla refill filament 1 75mm review covers the SUNLU PLA+ Refill 4KG. You get 4KG of PLA+ material in a refill format. The spool measures 10 inches high and fits most FDM printers. It includes four colors: Black, Sunny Orange, Lavender Purple, and Olive Green. The filament diameter is 1.75mm. This product is designed for users who want less plastic waste. It offers a sustainable alternative to traditional spools. The refill design helps lower your carbon footprint while printing.
What stands out
- PLA+ material is three times stronger than standard PLA.
- Refill format reduces plastic waste and environmental impact.
- Compatible with Bambu Lab spool, AMS, and AMS Lite.
- Neatly wound filament prevents knots and tangles.
- Nozzle temperature range is 210°C to 235°C.
Who it fits
Good fit for
You should choose this if you own a Bambu Lab printer or a standard FDM machine. The refill design suits users who want to reduce plastic waste. It works well for beginners because the spool is easy to install. The stronger PLA+ material is good for durable prints. The recommended bed temperature of 55°C to 65°C makes it easy to use. You get four distinct colors in one package.
Who should skip it
Skip this if you need a complete spool system. This product is a refill only. It does not include a spool frame. It is not compatible with the SUNLU 2nd detachable spool. You must confirm your spool type before buying. If you need a ready-to-print spool with a built-in holder, look elsewhere. This item is for those who already have compatible spools.
Verdict: This refill offers strong PLA+ filament in a sustainable format. It is a practical choice for users with compatible spools.
Key specs explained for this refill
Material Type: PLA+
This filament is a reinforced version of standard PLA. The listing states it is three times stronger than regular PLA. This added durability helps prints resist breaking during use. You get brighter colors and better layer adhesion. It is also free from clogs, bubbles, tangles, warping, and stringing. This makes it easier to use for detailed models that need to hold up.
Filament Diameter: 1.75mm
This is the standard thickness for most FDM 3D printers. A consistent 1.75mm diameter ensures smooth feeding through your extruder. It works with most machines, including Bambu Lab spools and AMS systems. This standard size allows you to swap brands easily. Check your printer manual to confirm it accepts this diameter before buying.
Net Weight: 4KG
You receive four kilograms of material in this package. This is a large amount suitable for long projects or bulk printing. The listing calls it a refill format, which means it reduces plastic waste from traditional spools. This value helps you calculate how many prints you can make. It offers a sustainable alternative to standard packaging.
Recommended Nozzle Temperature: 210°C - 235°C
The manufacturer suggests this temperature range for the extruder. Staying within 210 to 235 degrees ensures proper melting and flow. If the temperature is too low, you may see under-extrusion. If it is too high, you might get stringing. Start at 210 degrees and adjust based on your print quality and ambient conditions.
Design and Build Analysis
The SUNLU PLA+ Refill uses a reusable spool design. According to the listing, this format reduces plastic waste by eliminating the traditional outer shell. You align and snap the filament into place using clear internal markings. The spool is compatible with SUNLU 2025 new spools, Bambu Lab spools, AMS, and AMS Lite systems. It is not compatible with the SUNLU 2nd detachable spool. You must verify your existing spool type before purchase. This design targets users who want to minimize environmental impact while maintaining ease of installation.
The product dimensions are 7.28 inches wide, 10 inches high, and 7.28 inches deep. The total weight is 8.82 pounds, containing 4KG of material. The filament diameter is 1.75mm. The listing claims the R&D team uses advanced winding technology to prevent knots and tangles. This neat winding aims to improve printing efficiency and reduce clogs. You get four colors in this pack: Black, Sunny Orange, Lavender Purple, and Olive Green. The PLA+ material is described as three times stronger than standard PLA. It offers brighter colors and better layer adhesion. You should print between 210°C and 235°C nozzle temperature. The bed temperature should be set between 55°C and 65°C. This build suits users seeking a sustainable, high-volume refill option for compatible FDM printers.
Setup And Everyday Use Guide
Loading this refill requires aligning the filament with the clear internal markings on the SUNLU 3rd generation reusable spool. You snap the material into place for a secure fit. The listing notes this design is newbie friendly and simplifies installation. You must confirm your spool type before purchasing, as this refill is not compatible with the SUNLU 2nd detachable spool. It works with SUNLU 2025 new spools, Bambu Lab spools, and other well-known brands. It also fits most FDM printers, AMS, and AMS Lite systems. Once loaded, the neatly wound filament aims to prevent knots and tangles. The listing claims this winding technology improves printing efficiency by eliminating common issues like clogs, bubbles, warping, and stringing. For daily printing, the recommended nozzle and extrusion temperatures range from 210°C to 235°C. You should set your bed or platform temperature between 55°C and 65°C. These settings support the PLA+ material’s improved layer adhesion and strength. The 1.75mm diameter ensures consistent feeding through standard extruders. You benefit from brighter colors and reduced environmental impact due to the reusable spool design. This format allows you to swap filament without discarding the entire spool structure. The process remains straightforward if you follow the alignment guides. You get a reliable printing experience when the filament is wound correctly and the printer settings match the recommended ranges. The material properties suggest durability for functional prints.
Check Compatibility And Settings
Before you buy this SUNLU PLA+ Refill 4KG, verify your spool hardware. The listing states it is fully compatible with SUNLU 2025 new spools, Bambu Lab spools, and AMS Lite systems. It is not compatible with the SUNLU 2nd detachable spool. Confirm your current spool model to avoid fitting issues. You will need an FDM printer that accepts 1.75mm filament. Standard bed temperatures of 55°C to 65°C work well. Nozzle temperatures between 210°C and 235°C are recommended for optimal results. This refill format reduces plastic waste by eliminating traditional outer shells. You align the filament using clear internal markings and snap it into place. The neatly wound design aims to prevent knots and tangles. This product fits alongside other 3D printers and making tools as a sustainable, high-strength material option. It offers brighter colors and better layer adhesion than standard PLA. Ensure your printer’s extruder can handle the 4KG load comfortably.
Check before you buy
- Verify you own a SUNLU 2025 new spool or Bambu Lab spool.
- Confirm your printer accepts 1.75mm filament and 4KG spool weight.
- Check that you do not have a SUNLU 2nd detachable spool.
- Ensure your printer bed reaches at least 55°C for PLA+.
- Set nozzle temperature between 210°C and 235°C for best results.
The product at a glance
SUNLU PLA+ Refill 4KG
Best for: sustainable printing with reusable spools
- Material Type
- PLA+
- Filament Diameter
- 1.75mm
- Net Weight
- 4KG
- Dimensions
- 7.28 × 7.28 × 10 inches
- Weight
- 8.82 pounds
View on Amazon: SUNLU PLA+ Refill 4KG Affiliate link
This SUNLU PLA+ refill offers 4KG of 1.75mm filament in a multi-color pack. It uses reusable spools to reduce plastic waste. The material is three times stronger than standard PLA and resists clogs, bubbles, and warping. It fits most FDM printers and AMS systems. You get neat winding for reliable printing. Recommended temperatures are 210–235°C for the nozzle and 55–65°C for the bed.
Pros
- 4KG net weight of PLA+ filament
- Reusable spool design reduces plastic waste
- Three times stronger than standard PLA
- Compatible with Bambu Lab and AMS systems
- Neatly wound filament prevents tangles
Cons
- Not compatible with the SUNLU 2nd detachable spool
- Single spool size limits simultaneous multi-color printing
- Requires separate spool holder for installation
Good fit if
- You want to reduce plastic waste with reusable spools
- You need strong filament for durable prints
- You use Bambu Lab or AMS systems
Skip if
- You own a SUNLU 2nd detachable spool
- You prefer single-color filament packs
- You need pre-loaded spools for instant use
Verdict: SUNLU PLA+ Refill Filament 4KG is a sustainable, high-strength option for users with reusable spools and AMS systems. It suits those prioritizing durability and reduced waste over convenience.
Specifications side by side
| Spec | SUNLU PLA+ Refill 4KG |
|---|---|
| Material Type | PLA+ |
| Filament Diameter | 1.75mm |
| Net Weight | 4KG |
| Compatible Material | PLA |
| Dimensions | 7.28 × 7.28 × 10 inches |
| Weight | 8.82 pounds |
| Size | Pla+ Refill |
| Color | Black+sunny Orange+lavender Purple+olive Green |
| Model | PLA+ Filament Refill |
Frequently asked questions
Is the SUNLU PLA+ Refill 4KG compatible with Bambu Lab AMS systems?
Yes, this filament works with Bambu Lab AMS systems. The listing confirms compatibility with SUNLU 2025 new spools, Bambu Lab spools, and AMS Lite systems. You must ensure your hardware matches these specific models. It is not compatible with the older SUNLU 2nd detachable spool. Check your spool type before loading.
What colors are included in the 4KG refill pack?
The pack includes four distinct colors. You receive Black, Sunny Orange, Lavender Purple, and Olive Green. This variety allows for multi-color prints without buying separate spools. The total weight is 8.82 pounds, providing ample material for various project sizes.
Does the SUNLU PLA+ Refill use a reusable spool?
Yes, it uses a reusable spool design. This format eliminates the traditional outer shell to reduce plastic waste. You align and snap the filament into place using clear internal markings. This design is intended to be newbie friendly and simplifies the installation process for users.
How strong is the SUNLU PLA+ filament compared to standard PLA?
The listing states it is three times stronger than regular PLA. This reinforced material helps prints resist breaking during use. You get brighter colors and better layer adhesion. This added durability makes it suitable for functional parts that require more strength than standard PLA offers.
What are the physical dimensions of the refill spool?
The spool measures 10 inches high. The width and length are both 7.28 inches. These dimensions allow it to fit most FDM printers. The total weight of the 4KG package is 8.82 pounds. This size ensures it integrates well with standard printer setups.
Is this filament suitable for sustainable printing?
Yes, it is designed for sustainable printing. The reusable spool format reduces plastic waste by removing the disposable outer shell. This option suits users who prioritize durability and reduced waste. It is a practical choice for those looking to minimize environmental impact while maintaining print quality.