Sunlu Refill PLA

Artno.: SN5-325-P
Manufacturers: Sunlu

SUNLU PLA Refill is a spoolless PLA refill filament for compatible reusable spools. It is ideal for regular PLA printing, print farms, maker spaces, schools, workshops and users who want to reduce spool waste and store filament more efficiently. The 1.75 mm PLA is easy to print, has low warping tendency and is suitable for models, figurines, decorative objects, prototypes, accessories and standard prints. A compatible SUNLU 3rd-generation reusable spool or Bambu Lab reusable spool is required.

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10,71 €

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(9,00 € excl. VAT)

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SUNLU PLA REFILL

SUNLU PLA Refill

Spoolless PLA refill filament for reusable spools – ideal for regular 3D printing workflows, less spool waste, space-saving storage and reliable PLA prints with easy processing. Compatible with suitable SUNLU 3rd-generation reusable spools and Bambu Lab reusable spools.

PLA without a disposable spool

SUNLU PLA Refill is a practical refill solution for users who print PLA regularly and want to reuse existing reusable spools. Instead of a complete disposable spool, the filament is supplied as a refill coil and mounted onto a compatible reusable spool. This reduces spool waste, saves storage space and fits especially well into print farms, high-volume users, maker spaces, schools, workshops and regular prototyping workflows.

Same PLA workflow, less spool waste

The refill format is made for users who want to store and use SUNLU PLA more efficiently. PLA remains a beginner-friendly standard material for clean models, decorative objects, figurines, prototypes, accessories and simple functional parts. It is important to mount the refill correctly onto a compatible spool so the filament feeds smoothly and does not tangle.

Spoolless refill

1 kg / 1.75 mm

SUNLU 3rd-gen spool

Bambu reusable spool

Less waste

Easy PLA printing

1 kg

Refill filament without fixed disposable spool

330 m

Approx. length for 1 kg / 1.75 mm PLA

200–240 °C

Nozzle temperature depending on speed

50–60 °C

Recommended bed temperature

REFILL FORMAT

For reusable spools and efficient material workflows

SUNLU PLA Refill is especially useful when many rolls are consumed and empty plastic or cardboard spools should be avoided. The filament is mounted onto a suitable reusable spool and can then be used like regular PLA. This makes it suitable for standard prints, prototypes, models, decorations, training prints and recurring FDM jobs.

Print farms

Maker spaces

Schools

Workshops

Prototyping

IMPORTANT FOR REFILL

Secure and open the refill only after installation

The refill must not be released before it is installed. The zip tie keeps the filament coil together and prevents tangling. First place the refill filament correctly onto the compatible reusable spool and lock it in place. Only then remove the tie and secure the filament end properly in the spool. This keeps the winding stable and supports reliable feeding to the printer or AMS system.

COLOR DEPENDS ON VARIANT

One description for all SUNLU PLA Refill colors

This product description is intentionally written without a specific color and can be used for all SUNLU PLA Refill color variants. The selected color is managed through the article title, product images, variant logic and item data. This keeps the technical description consistent while each color remains selectable separately in the shop.

Highlights

Spoolless refill format

For compatible reusable spools, less spool waste and more space-saving storage.

Easy PLA printing

Ideal for models, prototypes, decorations, accessories and regular standard prints.

Compatible reusable spools

Designed for SUNLU 3rd-gen reusable spool and Bambu Lab reusable spool, depending on variant.

Low warping tendency

PLA is suitable for uncomplicated printing without high chamber or bed temperature requirements.

Good for high-volume users

Especially practical for recurring print jobs and multiple reusable spools already in use.

Dry storage

After opening, store in a dry box, sealed bag or dry storage with desiccant.

Technical Data

Product	SUNLU PLA Refill
Material Type	PLA filament / spoolless refill filament
Format	Refill without fixed disposable spool, for installation on compatible reusable spool
Compatible Spools	SUNLU 2025 3rd-generation reusable spool and Bambu Lab reusable spool according to SUNLU product information
Color	Depends on selected color variant
Diameter	1.75 mm
Diameter Tolerance	1.75 ±0.02 mm according to SUNLU PLA data
Content	1000 g filament, unless otherwise specified by variant
Length	Approx. 330 m for 1 kg / 1.75 mm PLA
Nozzle Temperature	200–210 °C at 50–100 mm/s; 210–240 °C at 100–200 mm/s according to SUNLU PLA parameters
Bed Temperature	50–60 °C; unheated bed only with suitable adhesive
Drying	50–55 °C for 6–8 h according to SUNLU filament guide; store dry
Storage	Store cool, dry and away from direct sunlight; seal with desiccant after opening
Retraction Distance	0.8–1.2 mm according to SUNLU PLA data, depending on extruder
Retraction Speed	30–40 mm/s according to SUNLU PLA data, depending on extruder
Density	1.23 g/cm³ according to SUNLU PLA data
Tensile Strength	40±6 MPa according to SUNLU PLA data
Flexural Strength	65±6 MPa according to SUNLU PLA data
HDT	55±5 °C according to SUNLU PLA data
Note	Reusable spool may not be included depending on item and must be available separately.

Print Parameter Orientation

50–100 mm/s	Approx. 200–210 °C according to SUNLU PLA parameters
100–200 mm/s	Approx. 210–240 °C according to SUNLU PLA parameters
Bed temperature	50–60 °C; use suitable adhesive on an unheated bed
Refill installation	Mount and lock onto a compatible spool first, then remove the securing tie
Note	The optimal setting depends on printer, hotend, build plate, cooling, color, part geometry and slicer profile.

Typical Applications

SUNLU PLA Refill is suitable for applications where easy processing, clean surface finish, color variety and reliable printability are the main focus. For parts exposed to high heat, permanent UV/outdoor use or strong mechanical stress, PETG, ASA, ABS, PA, PC or fiber-reinforced materials should be considered.

Decorative objects

Figurines

Models

Prototypes

Accessories

Training prints

Print farm workflows

Standard prints

For regular PLA prints with less spool waste

SUNLU PLA Refill is especially useful when PLA is consumed regularly and suitable reusable spools are already available. The format saves storage space, reduces waste and delivers familiar easy PLA processing for models, prototypes, accessories and creative projects.

Note on PLA Refill

PLA Refill requires a compatible reusable spool. If the filament coil is released before installation or inserted incorrectly, it can tangle. PLA is easy to print but has limited temperature resistance. For parts used in cars, direct sunlight, near heat sources or under high long-term load, an engineering filament should be considered.

SUNLU AT WELECTRON

Welectron provides advice, fast shipping and suitable support for SUNLU filaments, filament dryers, accessories, refill workflows and clean material processes in 3D printing.

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