S300X LIQ21 | LIQ11 Silicone and Elastomer 3D Printer
IDEX independent dual extrusion, no material cross-contamination
Supports medical-grade silicone and meets biocompatibility requirements.
Minimum layer thickness of 50 μm, with high printing accuracy.
15L large-capacity material hopper, enabling continuous unattended printing.
Water-soluble support; complex structures can be fabricated in a single step.
HEPA14 filtration, safe and environmentally friendly operating environment
Open-source materials and support for third-party consumable compatibility.
Automatic calibration, easy operation, and convenient maintenance.
Product Introduction
S300X LIQ21 | LIQ11 Silicone and Elastomer 3D Printer
General Introduction
The S300X LIQ21 | LIQ11 is a professional elastomer 3D printer designed for industrial and medical applications, specializing in high-precision additive manufacturing with liquid materials such as silicone and polyurethane. The system features an independent dual-extruder (IDEX) architecture, enabling simultaneous use of the LIQ21 two-component liquid toolhead and the LIQ11 single-component support toolhead. This configuration supports printing of complex structures with either no support or water-soluble support, enhancing design flexibility and molding freedom for flexible materials. With a compact, robust build, the machine is well-suited for laboratory R&D, small‑batch production, custom medical device fabrication, and rapid prototyping of industrial seals.
This device supports industrial‑grade RTV2 silicone, medical‑grade skin‑contact certified silicone, and a variety of polyurethane materials, covering a broad range from soft elastomers to higher‑hardness engineering elastomers. Paired with a large‑capacity material cartridge, it enables long‑duration continuous printing while minimizing manual intervention. Its enclosed chamber, combined with a filtration and purification system, ensures a safer, more environmentally friendly printing process, making it well suited for demanding applications in the medical and precision manufacturing sectors. In terms of build accuracy, the system achieves a minimum layer thickness of 50 μm, with nozzle extrusion volume precisely controlled by a volumetric metering pump, delivering stable, uniform material deposition—ideal for producing functional parts that require dimensional consistency and superior surface quality. Currently, this model is deployed worldwide across diverse applications, including medical orthotics, soft robotics, aerospace masks, and industrial gaskets, establishing itself as an industrial‑grade solution in the field of flexible‑material 3D printing.
Working principle
S300X LIQ21 | LIQ11 operates on the principle of Liquid Additive Manufacturing (LAM), integrating an independent dual-extrusion motion system to enable layer-by-layer deposition and precise shaping of elastomeric materials. The entire process is divided into five stages: material delivery, dynamic mixing, precision extrusion, layered printing, and support dissolution. The system uses pneumatic pressure to convey liquid silicone or polyurethane from a high-capacity reservoir to the print heads; the LIQ21 two-component module performs precise proportional mixing internally, ensuring stable crosslinking and curing performance. Meanwhile, the LIQ11 module handles the extrusion of water-soluble support material. The two print heads move independently, without interfering with each other.
During the printing process, the control system drives the print head and the build platform in three‑axis coordination based on the sliced data from the 3D model, depositing material layer by layer along a predefined path. A volumetric metering pump provides pulsation‑free, repeatable material flow control, ensuring uniform layer thickness and dimensional stability. The build platform maintains an optimal temperature according to the material requirements, minimizing shrinkage and deformation. For complex geometries such as overhangs, internal cavities, and undercuts, the system automatically generates water‑soluble supports that can be rapidly removed after printing via a water bath, eliminating the need for manual trimming and preserving the integrity of intricate structures.
The device features a built-in automatic calibration function that can automatically measure nozzle height, XY offset, and platform levelness, thereby reducing the complexity of manual adjustments. It also includes filament‑runout detection and power‑resume printing capabilities, helping to minimize print failures in unexpected situations. The entire build process does not rely on high‑temperature melting, preserving the material’s intrinsic properties, making it particularly well suited for temperature‑sensitive medical-grade silicones and flexible materials.
Advantages and Key Features
The core advantages of the S300X LIQ21 | LIQ11 are concentrated in four key areas: material compatibility, design flexibility, industrial reliability, and operational safety. First, the system supports a comprehensive range of elastomeric materials, enabling stable printing of everything from soft medical-grade silicone to high-hardness polyurethane. Medical-grade silicone can be used directly in medical devices that come into contact with the human body, fully meeting biocompatibility requirements.
The independent dual-extrusion IDEX architecture is a key technical feature, enabling separate printing of primary and support materials to prevent cross-contamination while significantly enhancing the ability to fabricate complex structures. Internal cavities, lattice patterns, and porous architectures—features that are difficult to achieve with conventional silicone casting—can all be produced in a single build, substantially shortening the development cycle. Paired with water-soluble supports, post-processing is simple and efficient, eliminating the need for chemical solvents or mechanical polishing and minimizing damage to the part.
In terms of production practicality, the large-capacity material cartridge enables continuous, long‑term unattended printing, making it well suited for small‑batch component manufacturing. The enclosed chamber and filtration system effectively minimize volatile emissions and dust, enhancing the work environment and meeting health and safety requirements for industrial and medical settings. The equipment features a robust overall structure and a highly precise motion system, ensuring high dimensional consistency even during prolonged, continuous operation.
In addition, the device features a streamlined operating logic, highly automated calibration, and easily removable and replaceable maintenance modules, making it ideal for R&D teams, medical institutions, and production facilities to get up and running quickly. With open, adjustable parameters, users can optimize printing settings based on material properties, thereby enhancing print success rates and component performance.
Application Areas and Case Studies
The S300X is primarily used in fields such as healthcare, industrial manufacturing, soft robotics, and aerospace surface treatment. In the medical domain, the device can produce customized orthotics, prosthetic liners, anatomical simulation models, ostomy care accessories, and more. Its silicone materials are soft and conformable, with excellent biocompatibility, enabling precise fabrication based on individual patient data to enhance comfort and therapeutic outcomes.
In the industrial sector, this equipment is commonly used to produce custom seals, vibration‑damping components, non‑standard gaskets, waterproof connectors, and masking masks. For example, aerospace companies employ it to 3D‑print high‑precision masks for coating and electroplating protection of parts, offering faster turnaround and superior conformity to complex curved surfaces compared with traditional machining methods. The automotive, electronics, and hydraulic industries also leverage it to rapidly manufacture small batches of seals, replacing mold‑making processes and shortening maintenance and R&D cycles.
In the field of soft robotics, this device can fabricate flexible grippers, bio-inspired hands, pneumatic soft actuators, and more. Its intricate internal pneumatic circuitry can be integrally molded in a single step, eliminating the need for assembly and enhancing the reliability and longevity of soft‑robotic structures. Moreover, it finds broad applications in consumer‑product design, cultural‑creative goods, and scientific research apparatuses, enabling users to rapidly validate innovative soft‑structured designs.
Equipment Parameters
| Build Volume (XYZ) |
300 x 250 x 200 mm |
| Layer thickness range | 50um-1mm |
| Calibration | Automatic |
| Nozzle diameter | 0.23 mm-1.04 mm |
| Equipment dimensions | Length 1000 × Width 629 × Height 887 mm |
| Support | Soluble material |
| Tool Head Configuration | LIQ21 two-component + LIQ11 single-component |
| Health and Safety | Closed filtration environment |
| Heating chamber temperature | Up to 40°C |
Printed materials
|
Silicone: RTV2 medical grade (5, 10, 25, 40 Shore A) (ISO 10993-05 certified), RTV2 industrial grade (45 Shore A) Polyurethane: Industrial Standard (50–80 Shore A) Liquid silicone rubber Epoxy resin |
Download Materials
Silicone 3D Printer S300X Color Brochure
Software size:
1.9MB
File type:
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Beijing Yunshang Intelligent Manufacturing Technology Co., Ltd.
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