Products3D Printing Filament Extrusion Lines
Standard-Speed
The RC-45 Standard-Speed 3D Filament Extrusion Line is a 3D printer filament production line for materials such as PLA, PLA+, PETG and ABS. It integrates extrusion, cooling, in-line diameter measurement, traction and automatic winding, with configuration options to match production targets, filament diameter and spool requirements.
Applicable materials
PETG, ABS, PLA, PLA+, etc.
Applicable filament diameter
φ1.75 mm ±0.03 mm
Extrusion output
≤25 kg/h, adjustable
Screw diameter and L/D
Single screw, L/D 30:1, nitrided
Screw speed
Up to 120 r/min, adjustable
Temperature control
6-stage independent PID, ±3 °C
Cooling method and length
Heating water tank group (4 m) + cooling water tank group (4 m), gradient pre-cooling
Traction speed
Up to 120 m/min, ±0.1%
The RC-45 is a standard-speed 3D filament extrusion line designed for integrated 3D printing filament production. Its 45-type single-screw extruder melts plastic pellets, while gradient water baths cool and shape the filament. A dual-axis laser gauge measures filament diameter in line, followed by traction and automatic winding under a linked control system.
This filament extrusion equipment is configured for 1.75 mm filament with a specified diameter tolerance of ±0.03 mm and adjustable output of up to 25 kg/h. Buyers can select either a tape-fixing or threading-hole winding configuration according to their spool specifications and production requirements.
Equipment name | 3D Printing Filament Extrusion and Winding Automatic Production Line (RC-45 Threading Hole Type) |
|---|---|
Working principle | Raw Material→Vacuum Feeding→Heated Extrusion→Hot Water Tank→Cold Water Tank→Pulling→Winding→Finished Product |
Description | |
Raw material | PETG, ABS, PLA, PLA+, etc. |
Production capacity | ≤ 25 kg/h with automatic winding |
3D filament diameter | 1.75 mm (Accept Customized) |
3D filament accuracy | ± 0.03 mm |
Extrusion speed | ≤ 120 m/min |
Spool storage capacity | 20+ |
Operating Conditions | |
Installation dimensions / weight | 16,000 mm (L) × 1,420 mm (W) × 2,750 mm (H), total weight ≤ 6,500 kg |
Operating temperature / humidity | ≤ 50 °C, ≤ 95% RH |
Power | 380 V, four line, max ≈ 69 kW |
Control wires / cables | The user is responsible for power supply to the equipment |
Cooling water hoses / pipes | Water supply provided by the customer. |
Air supply | 200 L/min ≥ 0.5 MPa |
Spool requirements | 1. Suitable for processing paper spools, plastic spools, etc. |
Supporting equipment | Screw-type Air Compressor |
Minimum Order Quantity
1 Unit
Low MOQ for B2B buyers
Lead Time
≤ 65 Working Days
After receipt of deposit
Installation & Commissioning
Available
Overseas on-site service available; additional charges apply
Warranty
1 Year
Factory warranty, subject to terms and exclusions
The layout drawing shows the RC-45 as a single straight run with an overall drawing dimension of 14,400 mm: the 45-type single-screw extruder at the feed end, followed by the hot-water and cold-water tank groups, traction with the in-line laser diameter gauge, and the threading-hole automatic winder with its spool storage rack at the winding end. The installed line occupies about 16.2 m including the online drying unit and the two 4 m tank sets, and the whole line runs under one linked control system from vacuum feeding to finished spool.
The 45-type extruder melts and meters the material with a single screw of 30:1 length-to-diameter ratio and wear-resistant nitriding treatment; screw speed reaches 120 r/min through variable-frequency or servo adjustment. The barrel uses six independently controlled heating zones with PID control at ±3 °C, and the main drive is an 11 kW permanent-magnet synchronous motor. A hot-air dryer (40–100 °C adjustable) and material loader feed dry pellets to the hopper, whose optional 25 L or 50 L vessel heats by circulating air with bottom auxiliary heating at 40–120 °C, with dust filtration, over-temperature power-off and material-shortage alarm. The extruder unit measures 2,600 × 940 × 2,800 mm at roughly 690 kg.
Freshly extruded melt passes a heating water tank group (4 m, double-tank constant-temperature control) and a 4 m cooling water tank for gradient pre-cooling: the warm baths relieve internal stress before main cooling, helping avoid warping, cracking or an off-round core from quenching, and each bath can sit near the glass-transition range of the material being run. Hot-water temperature adjusts continuously from 30 to 90 °C at ±3 °C; each tank heats with three 2 kW stainless-steel elements and reaches its set point in about 15 minutes. A built-in circulation pump (0.5–2 m³/h) with filtration keeps the bath even and protects the filament surface, while water make-up, level control and bottom drainage are automatic, with water-shortage, over-temperature and leakage protection. The cooling water tank cools through an external chilled-water connection.
Filament diameter is checked in line by a dual-axis laser gauge measuring the X and Y axes simultaneously at ±0.001 mm, monitoring roundness and ellipticity in real time; out-of-tolerance filament triggers an alarm and automatic feedback to line speed. Traction uses servo-driven double- or triple-roll clamping synchronized with winding at up to 120 m/min with ±0.1% speed accuracy. Between extruder and winder, a floor-standing storage rack (11,100 × 950 × 2,060 mm, 850 kg) buffers up to 330 m of filament to absorb speed differences between sections; its stainless guide wheels are dynamically balanced and fitted with adjustable silicone sleeves to protect the surface. Rack drives are Inovance servos — 1 kW storage adjustment, 750 W traction and 400 W metering — with photoelectric length detection linked to the winder for fixed-length winding and automatic roll change.
Threading Hole TypeTape Fixing Type
This line uses the front-and-rear threading-hole winder: at the start of each wind the filament end is threaded into positioning holes at the front of the spool and locked, keeping the first layers in order; when the set length is reached the tail is threaded into the rear hole to finish — no manual taping or binding anywhere in the cycle. The winder takes up filament at up to 120 m/min (±0.1%) onto spools with a 53–58 mm core and up to 200 mm outside diameter, about 1 kg each, with servo screw or cam traverse for a flat roll face. Fourteen Inovance servo axes (about 6.55 kW) drive roll change; Omron proximity switches and Leuze photoelectric sensors stop the machine on filament break or full spool, and a laser sensor threads the holes precisely. AIRTAC pneumatic cylinders operate at 1 MPa, and the machine handles automatic roll change, fixed length, output statistics and remote monitoring for uninterrupted production. The unit measures 2,400 × 1,200 × 2,400 mm at 1,050 kg.
The threading-hole winder works with spools whose core inner diameter is 53–58 mm and whose threading holes are at least 5 mm wide with a hole spacing of 35 mm or more. Spools outside these dimensions are not suitable for this winder.
The winder takes the filament up at up to 200 m/min onto spools with a 52–56 mm core and up to 200 mm outside diameter, about 1 kg of filament per spool. At the start of each wind, an automatic glue station feeds, cuts and applies tape in one motion, fixing the filament end to the spool at an adjustable length and position so the first layers wind in order. A 1.5 kW vacuum pump holds the joint flat, and tape tension adapts to the filament so the surface is not damaged. Traverse runs on a servo screw or cam for a flat, even roll face. Seventeen Inovance servo axes (about 7.75 kW in total) drive roll change, and the machine stops itself on filament break detected by photoelectric and proximity sensors; a laser sensor handles precise hole threading. Fixed-length winding, output statistics and remote monitoring run continuously, so the line winds without an operator standing at the spool.
An Inovance 10-inch touch screen with an independent extruder PLC operates the line; the HMI stores temperature curves, manages recipes, runs fault diagnosis and logs output statistics, and the extruder, traction, diameter gauge and winder run in one closed loop. Communication uses RS485 and Ethernet with Modbus TCP/RTU, so the line can be integrated into an MES. Schneider breakers and contactors provide overload and short-circuit protection, and Taisong current-detection sensors monitor the temperature-control circuits in real time. The line runs on a three-phase 380 V / 50 Hz TN-S supply with a total installed power of 69 kW, including both hot-tank heating groups, rack traction and the hopper.
The first on-site commissioning is free of charge and includes operator training.
The machine carries a one-year warranty under the company's warranty policy (electrical components replaced); maintenance support continues for the equipment's service life, with the exact scope and cost defined in the warranty policy.
Delivery is scheduled within 65 working days after the deposit.
The RC-45 is designed to process materials such as PETG, ABS, PLA, PLA+, etc. for 3D printing filament production. Processing parameters should be adjusted according to the selected material grade and production requirements.
The standard filament diameter is 1.75 mm. Other diameters may be evaluated for customization. Please confirm your required filament diameter and production specifications with Rongcai before ordering.
The RC-45 is available in two winding configurations: Tape-Fixing Type and Threading-Hole Type. The appropriate configuration depends on your spool design and filament-end fixing requirements. Please provide your spool specifications when requesting a quotation.
Yes. The standard water tank configuration is 3+3+6 tanks. The tank arrangement can be customized according to your production process, cooling requirements, factory layout, and other project specifications. Please confirm the required configuration with Rongcai.
The minimum order quantity is 1 unit. The stated lead time is within 65 working days after receipt of the deposit. The production schedule and applicable delivery milestone should be confirmed in the order agreement.
Yes. Rongcai can arrange engineers for on-site installation and commissioning for overseas customers, subject to project arrangements. The buyer is responsible for the engineer service fee of USD 120 per person per day, applicable travel expenses, round-trip airfare, visa fees, meals, accommodation, and local transportation. Please contact Rongcai to confirm the service scope and estimated costs before arranging installation.
The RC-45 comes with a one-year factory warranty, subject to applicable terms and exclusions. Damage caused by improper operation or other customer-related factors may not be covered by the free warranty. Please refer to Rongcai's service and warranty terms for details.
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Next step
High-Speed
The RC-50 High-Speed 3D Filament Extrusion Line is a fully servo-controlled 3D printer filament production line designed to process materials such as PETG, ABS, PLA and PLA+ pellets into wound filament spools. It combines a 30:1 single-screw extruder with in-line laser diameter measurement, servo traction and automatic winding to support integrated filament production with reduced manual spool handling.
Tape Fixing Type
Automatic winding station that spools finished filament under controlled tension and fixes the filament end to the spool with tape, so the spool leaves the line ready for packing without manual handling.
Threading Hole Type
Automatic winding station that spools finished filament under controlled tension and locks the filament head and tail through holes in the spool core, so the spool leaves the line secure and tape-free without manual handling.
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