Repoly Smooth-20X - Steam Smoothing System

The Smooth-20X is an advanced 3D printing chemical post-processing system developed by Repoly to optimize the surface finish of parts produced using PBF, SLS, and MJF technologies. This professional equipment addresses key challenges in polymer post-processing, including high costs, uneven smoothing, part deformation, and operational complexity. The result is a solution designed to deliver uniform surfaces, structural improvement, and repeatable results in industrial, laboratory, and R&D additive manufacturing environments.

Chemical polishing technology at room temperature

Thanks to its innovative room-temperature processing technology, the Smooth-20X allows smoothing 3D printed parts without exceeding the material's glass transition temperature. This approach eliminates common issues such as uneven smoothing, dimensional deformation, cracking from over-treatment, and mechanical performance loss caused by high-temperature vapors. After processing, parts achieve a surface roughness Ra ≤ 2.0, significantly improving strength, durability, and aesthetic finish without compromising functional integrity.

Compatibility with 3D printing materials and technologies

The Smooth-20X offers high compatibility with commonly used professional 3D printing polymers, including PA12, PA11, PA6, TPU, Peba, and PLA. This versatility allows uniform treatment of SLS and MJF parts, avoiding common defects such as visible powder, delamination, surface peeling, or excessive adhesion caused by uncontrolled processes. Its applicability makes it effective for both functional prototyping and small- to medium-batch production.

Automated 3D post-processing system

The system integrates a cylindrical reaction chamber, intelligent control system, automatic feed unit, vacuum pump, and drying module, forming a fully automated workflow. This design simplifies the process and reduces reliance on material-specific technical knowledge, allowing post-processing to become a standard procedure in polymer additive manufacturing. Batch processing with one-click operation improves efficiency and reduces barriers in cost and complexity.

Performance, precision, and operational safety

The Smooth-20X incorporates temperature and vacuum pressure sensors, advanced control valves, and high-precision pumps to optimize every process phase. It is designed to minimize solvent residue and reduce chemical waste, addressing a key issue in conventional equipment. The touchscreen interface allows full system control, while gas evacuation and neutralization design ensures a safe, controlled environment. Polishing time is under 10 minutes, and the full cycle completes in approximately 90 minutes, combining speed, stability, and repeatability.

Optimizing finish and mechanical properties

Beyond surface finishing, the Smooth-20X contributes to the overall improvement of physical and mechanical properties of 3D printed parts. By avoiding over-treatment and thermal stress, defects such as brittleness, warping, and structural degradation are reduced. The result is components with greater strength, improved functionality, and surface quality suitable for industrial, technical, and end-use applications.

Strategic solution for R&D and additive production

The Smooth-20X supports both research and development departments and small- to medium-batch production environments. Its flexible approach allows customized solutions based on user needs, promoting adoption of advanced post-processing and contributing to the development and maturity of the polymer 3D printing market.

Professional standard in 3D printing post-processing

The Smooth-20X sets a new benchmark in 3D part post-processing, improving convenience, cost-efficiency, and applicability of chemical smoothing processes. Its combination of automation, precision, safety, and compatibility positions it as a key tool to maximize quality, productivity, and efficiency in high-performance professional additive manufacturing.

Photo 1: SEM microscope showing 3D part surface transformation after steam smoothing. Source: Repoly