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header-product Filament Dryer Sunlu S4 by Sunlu – filament moisture dryer for 3D printing spools
126.49 €

Filament Dryer Sunlu S4 by Sunlu – filament moisture dryer for 3D printing spools

Filament Dryer Sunlu S4 Photo 1
Filament Dryer Sunlu S4 Photo 2
Filament Dryer Sunlu S4 Photo 3
Filament Dryer Sunlu S4 Photo 4
Filament Dryer Sunlu S4 Photo 5
Filament Dryer Sunlu S4 Photo 1
Filament Dryer Sunlu S4 Photo 2
Filament Dryer Sunlu S4 Photo 3
Filament Dryer Sunlu S4 Photo 4
Filament Dryer Sunlu S4 Photo 5
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Filament Dryer Sunlu S4 by Sunlu – filament moisture dryer for 3D printing spools

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Filament Dryer Sunlu S4 by Sunlu – filament moisture dryer for 3D printing spools

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Short description

Sunlu S4 Filament Dryer is a dedicated filament moisture dryer designed for 3D printing spools. Manufactured by Sunlu (MPN: Fila Dryer S4), it removes and prevents moisture in filament to improve print quality and reduce defects like bubbling or poor layer adhesion. Suitable for storage and pre-print drying of common filament spools to ensure consistent extrusion and reliable prints.
Available for order: 45 pcs.
Warranty: 1 Year
SKU: 12394538
Manufacturer: Sunlu
free shipment

Cheapest delivery:

Venipak Pickup LV, Venipak Locker LV

Pick-up points

Venipak Pickup LV

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Cost

1.89 €

Deliver

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
24.07.2026 {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
29.07.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 €
Parcel couriers
Venipak Pickup LV / Venipak Locker LV / Latvijas Pasts pakomāts / Unisend LV / DPD Paku skapis / Omniva LV / Latvijas Pasts nodaļa
29.07.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.89 €
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3 mth. х 42.16 €

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All payment Methods:
Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment
36 months installment: from 3.51 euros per month
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Product information

Description

The Sunlu S4 Filament Dryer is a dedicated filament moisture dryer designed for 3D printing spools. It can dry up to four 1 kg spools at once and supports simultaneous feeding to multiple printers. With a PTC heater rated at 320–330 W, fast warm-up (about 30 minutes to 50°C) and a maximum temperature of 70°C, the unit delivers uniform drying for hygroscopic materials including PA and PC. The built-in humidity control, touchscreen interface, eight filament outlets and predefined material profiles simplify preparation and storage of filaments.

Advantages

The Sunlu S4 combines high capacity and fast heating to reduce filament preparation time while maintaining stable internal temperature within ±3°C thanks to a three-fan circulation system. Automatic humidity control starts and stops drying based on set ranges, ensuring filaments are kept at optimal moisture levels without constant supervision. Broad material and diameter support plus multiple outlets allow flexible use in multi-printer or multicolor workflows.

Suitable for

  • Preparation and storage of standard 3D printing filaments (PLA, ABS, PETG, TPU, PA, PC)
  • Workflows with multiple printers or multicolor printing requiring several spools ready simultaneously
  • Users needing automated humidity control for consistent extrusion and fewer print defects

When it may not be suitable

The S4 is optimized for spool drying and may be oversized for users who only print occasionally with a single spool. It’s not intended as a general-purpose oven and should not be used to dry objects or materials not specified by the manufacturer. Also, maximum temperature is 70°C, so it may not reach the higher temperatures some specialty materials require.

Key specifications

  • Capacity: up to 4 spools (1 kg each)
  • Internal dimensions: 450 × 210 × 211 mm
  • Device dimensions: 516 × 278 × 350 mm
  • Rated power: 320–330 W (PTC heater)
  • Power supply: AC 100–240 V, 50–60 Hz
  • Maximum temperature: 70°C; heating to 50°C in approx. 30 minutes
  • Temperature stability: ±3°C with three-fan circulation
  • Automatic humidity control (starts at 30–50%, stops at approx. 25%)
  • Supported filament diameters: 1.75 mm, 2.85 mm, 3.00 mm
  • Supported materials: PLA, ABS, PETG, TPU, PA, PC
  • Number of filament outlets: 8 (compatible with PTFE tubes)
  • Display: touchscreen LCD
  • Net weight: 4.8 kg; gross weight: 5.5 kg

How to use

Place up to four filament spools inside the chamber and route filament through the PTFE tubes to the required outlets if feeding printers directly. Set the desired material profile or temperature and humidity thresholds on the touchscreen. The automatic humidity control will start drying when humidity rises above the configured range and stop when conditions reach approximately 25% relative humidity. Monitor the touchscreen for real-time temperature and status; the device provides safety monitoring via temperature sensors and software protection.

What to consider before purchase

  • Confirm the maximum spool diameter fits within the internal dimensions (450 × 210 × 211 mm).
  • Ensure the maximum temperature of 70°C meets the drying requirements of the filament types you use.
  • Plan for power compatibility: AC 100–240 V, 50–60 Hz.
  • Decide whether eight outlets and multi-printer feeding are required for your workflow.

Usage recommendations

For consistent results, use the predefined material profiles when available, check that PTFE tubes are properly connected for direct printer feeding, and avoid opening the chamber during active drying cycles to maintain temperature and humidity stability.

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Customer reviews

Customer questions

FAQ

How much does the Filament Dryer Sunlu S4 cost, and is it available for purchase?

The price is 126.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 45 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 24.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

Can Filament Dryer Sunlu S4 be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. We work with leading banks and leasing companies in Latvia, allowing you to make your purchase on convenient terms — with a minimal down payment and a repayment period from 3 to 36 months. You can apply for credit or installments for the Filament Dryer Sunlu S4 online, and the application process is as simple as possible:
  • Select the product on the website and add it to your cart;
  • When placing your order, choose the payment method “Installments”;
  • Fill in the required details for the lending partner;
  • Receive a decision within a few minutes.
For more information about available payment options, interest-free installment terms, and credit conditions in Latvia, please visit the Payment page.

Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

What is the warranty period?

All Sunlu products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Sunlu service centers and through AiO.lv

Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. We will assist with consultation, warranty claim processing, and coordination with certified service centers.
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14-Day Return Policy We are confident in our quality, but if the purchase doesn’t fit — you have 14 days to return the product with peace of mind.
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