3D Printing Filament Manufacturer in China
Wanzhoutong (万舟通) manufactures 3D printing filament — PLA, ABS, PETG, and TPU — and color masterbatch in Shenzhen, China. With automated extrusion lines, in-line diameter control, and an in-house color lab, we supply B2B buyers across Southeast Asia and Europe with factory-direct, export-ready material.
A Filament Factory Built for B2B Supply
Wanzhoutong is a manufacturer of 3D printing filament and color masterbatch based in Shenzhen, China. We produce PLA, ABS, PETG, and TPU filament in 1.75mm and 2.85mm, alongside universal and additive color masterbatch concentrates for filament producers and compounders.
Our production combines automated extrusion lines with in-line laser diameter measurement, batch-level color control, and test printing before shipment. Whether you need standard SKUs by the pallet or a private-label program in your own branding, the same production and QC process applies.
We work with distributors, wholesalers, and brand owners across Southeast Asia and Europe, shipping under EXW, FOB Shenzhen, CIF, and DDP terms with complete export documentation.
Inside the Wanzhoutong Factory
Extrusion Lines & Capacity
Our Shenzhen facility operates dedicated extrusion lines for rigid filament (PLA, ABS, PETG) and separate lines for flexible TPU, so elastic materials never contaminate rigid production. Masterbatch compounding runs on its own line with high-shear mixing for stable pigment dispersion.
Capacity is scaled for B2B orders: pallet-quantity standard SKUs ship from stock or short production runs, while custom colors are scheduled after sample approval. In-line laser gauges and batch retained samples keep quality repeatable at volume.
Filament Manufacturing by Material
PLA Filament Manufacturing
Our PLA lines run standard, matte, silk, marble, and rainbow grades. Pigment and additive dosing is controlled per batch, and every spool is checked for diameter consistency before packing. PLA is available in 1.75mm and 2.85mm with ±0.02mm tolerance.
- ✓Standard / Matte / Silk / Marble / Rainbow grades
- ✓Custom Pantone and RAL color matching
- ✓1.75mm and 2.85mm, ±0.02mm tolerance
ABS Filament Manufacturing
ABS production focuses on impact strength and low-warp performance. Raw material lots are dried before extrusion, and in-line gauges track diameter so each spool prints predictably on open-frame machines.
- ✓High-impact, low-warp formulation
- ✓Pre-dried raw material lots
- ✓Bulk supply with OEM packaging
PETG Filament Manufacturing
Our PETG lines produce clear and colored grades with high strength and good layer adhesion. Drying and moisture control during extrusion keep transparency stable across batches.
- ✓Clear transparent and colored grades
- ✓Moisture-controlled extrusion
- ✓Consistent batch-to-batch clarity
TPU Filament Manufacturing
Flexible TPU in the 85A–95A Shore hardness range is extruded on dedicated lines with slow cooling to preserve elasticity and layer adhesion for flexible prints.
- ✓Shore 85A–95A hardness range
- ✓Dedicated flexible-filament lines
- ✓Strong layer adhesion and abrasion resistance
Diameter Control, Color Matching & QC
Diameter Control
Laser diameter gauges monitor every extrusion line in real time. Out-of-tolerance filament is automatically flagged, and spool samples are re-measured with a micrometer before packing. Standard tolerance is ±0.02mm.
Color Matching
Our color lab matches customer references against Pantone and RAL standards using our in-house color masterbatch. Target color difference is Delta-E < 1.0, and approved color chips are archived so repeat orders stay consistent.
Quality Control
QC covers incoming raw material, in-process diameter and color checks, and final spool inspection. Each production batch keeps a retained sample so any customer feedback can be traced back to its run.
Testing
Spools are test-printed on FDM machines to verify flow, adhesion, and surface finish before shipment. Diameter roundness, tensile performance, and moisture content are checked per batch, and test reports ship with orders on request.
Packaging
Filament is wound, vacuum-sealed with desiccant, and boxed in branded or neutral cartons. Masterbatch is packed in 25kg paper bags or 500kg/1000kg bulk options. Custom private-label packaging is available.
Working With Wanzhoutong
OEM / ODM
We manufacture filament and masterbatch to your specification: material grade, diameter, color, spool size, and packaging. Send a spec sheet or a physical color reference and our team will develop a sample for approval.
Private Label
Private-label programs cover custom spool design, printed labels, branded boxes, and barcode requirements. MOQ starts from 50 kg per color, making it practical for regional distributors building their own brand.
Certifications
RoHS and REACH compliance documentation ships with every order, and ISO 9001 quality management governs production. Third-party inspection (SGS, TUV, or your nominated agency) is welcome before shipment.
Export Markets
We export to Southeast Asia and Europe as our core markets, with regular shipments to Vietnam, Thailand, Malaysia, Germany, the Netherlands, and beyond. Documentation includes commercial invoice, packing list, B/L, and certificate of origin.
MOQ
MOQ is 50 kg per SKU or color for both filament and masterbatch, covering standard and custom colors. Mixed-SKU trial orders are available for new partners.
Lead Time
Standard production lead time is 7–15 days after deposit and color confirmation, depending on order volume. Custom color development adds 3–7 days for sampling and approval. We quote FOB Shenzhen, CIF, EXW, and DDP terms.
Certifications & Standards
Export file controlManufacturer FAQ
What is your MOQ for OEM filament orders?+
MOQ is 50 kg per SKU or color for both filament and masterbatch, covering standard and custom colors.
Can you match a specific color?+
Yes. Send a Pantone or RAL reference, or a physical sample. Our color lab develops a sample filament or masterbatch for your approval before mass production, targeting Delta-E < 1.0.
What diameter tolerance do you guarantee?+
Standard tolerance is ±0.02mm for 1.75mm and 2.85mm filament, verified by in-line laser gauges and micrometer sampling on every batch.
Do you provide test reports and compliance documents?+
Yes. RoHS and REACH documentation ships with every order, and batch test reports (diameter, moisture, tensile) are available on request. Third-party inspection before shipment is welcome.
What are your shipping terms?+
We quote EXW, FOB Shenzhen, CIF, and DDP. Typical production lead time is 7–15 days after deposit and color confirmation; custom color development adds 3–7 days.
Can I visit the factory or arrange an inspection?+
Yes. Factory visits in Shenzhen are welcome by appointment, and we support third-party inspections (SGS, TUV, or your nominated agency) before shipment.
Request a Factory Quote
Send us your spec sheet — material grade, diameter, color reference, and target quantity — and our team will reply with pricing, lead time, and sample options.
Request Factory Quote →