SAF ReLife PA12 on the H350: Turn Waste Powder into Parts

In the ever-evolving world of additive manufacturing, innovations like Selective Absorption Fusion (SAF) and ReLife™ PA12 is reshaping the landscape and unlocking new levels of efficiency and sustainability. By exploring SAF and ReLife™ PA12, you can directly impact your business with innovative technology that positions you ahead of industry trends. Join us as we dive into how adopting these solutions can lead to your success while being environmentally friendly.

What is Powder Bed Fusion and where does SAF fit?

Powder Bed Fusion 3D printing is an additive manufacturing process of creating 3 Dimensional printed parts, layer by layer from powder-based materials.

The Stratasys H350 powder bed fusion system backed by SAF technology is designed to produce function, end use parts at a high volume. The H350 is suitable for a wide range of applications such as end-of-arm tooling, fixtures and production parts. Want to learn more about its advancements and applications? Check out our H350 Tech Talk from Solutions Consultant Mario De Lio to learn the impact behind its capabilities.

What is SAF?

Selective Absorption Fusion (SAF) uses a binding fluid to fuse powder layers, enhancing part integrity and reducing the need for support structures. SAF 3D Printing is a unidirectional form of 3D printing where powder is rolled out from left to right. Every single layer absorption fluid is being admitted into selective areas, as well as Fusing lamps travel across the build area through each layer to optimize thermal management. Giving you the highest packing density available in the powder bed fusion space.

Want to learn more behind the benefits behind SAF compared to other processes like SLS and MJF? Watch our On-Demand Webinar where SAF Production Specialist, Tyler Shamas discusses technological differences behind each Powder Bed 3D printing Processes.

SAF 3D printer powder removal

Introducing SAF Relife PA12™

When utilizing other powder bed fusion processes, disposing of PA12 can be expensive and harmful to the environment. Globally more than 2,500 Tons of SLS/MJF PA12 waste powder is being generated annually. But what if you could repurpose your PA12 waste material and create high-quality parts while saving money and lowering your carbon footprint?  Stratasys ReLife™ PA12 is now available as a new capability on the Stratasys H350, as an industry-first solution that allows you to use your waste PA12 powder from SLS and Polymer PBF systems to print industrial grade parts. This sustainable solution can help you deliver precise, affordable parts, making it ideal for large-scale production without sacrificing quality.

Stratasys SAF PA12 end-use part

SAF ReLife™ Benefits

SAF ReLife™ PA12 requires no support structures at all. The surrounding powders essentially act as the support, allowing you to print intricate geometries without the need to waste additional materials. Its high packing density enables efficient nesting to maximize your part throughput on production builds, and its uniform thermal profile supports dimensional accuracy and consistent mechanical performance for consistent results.

Cost Savings:

Lower material spending: Reclaimed powder reduces reliance on virgin PA12 and smooths exposure to new-material pricing.

Benchmark result: Early adopters report up to 20% reduction in total production cost compared to standard PA12 usage.

Sustainability:

Reduced Waste:  Avoid landfill disposal. SAF Relife gives you the opportunity to transform your waste into usable parts. Thus, maximizing your return on investment.

Lower carbon footprint: Save up to 6.9 kg CO₂ per kg of PA12 reused; studies cited by adopters show up to 90% footprint reduction when powered by renewables.

Longer lifecycle: Powder can be reused across multiple cycles based on powder history, part requirements, and dosing strategy.

Unique Blending and Automation Features:

Versatility & Blending: Use fresh, reclaimed, or blended ratios to meet mechanical and cosmetic targets for different applications.

Automated Handling: Modern powder workflows make it easier to break out, sieving, and dosing. This improves ergonomics and reduces the time needed for manual work. Maintain powder reuse consistency with a variety of industrial-grade print modes (Aesthetic, Balanced, and Strong).

Where ReLife Adds Value

Service Bureau Adoption: SAF ReLife technology is particularly appealing to service bureaus that operate multiple machines and generate substantial waste powder. SAF ReLife™ PA12 offers a solution to where these bureaus can utilize their own waste, potentially transforming it into valuable parts that can help meet client standards.

Automotive and Industrial Industry: SAF ReLife™ PA12 lets teams turn qualified waste powder into functional housings, clips, ducts, fixtures, and jigs—shrinking material spend and waste while supporting ESG goals.

What to Watch For:

Powder Aging: As with any powder-bed process, repeated heat exposure can gradually age ReLife™ PA12 (e.g., thermal oxidation/chain scission), which may affect color and mechanical performance over time. ReLife workflows address this by tracking powder lot history and using blend ratios (reclaimed + fresh) to maintain target properties for different applications.

Mindful Manufacturing™

Stratasys contributes to sustainability by minimizing waste and promoting the reuse of materials. Guided by Stratasys’s Mindful Manufacturing™ strategy, Stratasys publishes ESG and Sustainability progress reports to enable more sustainable production across supply chains in hopes for a more environmentally friendly future in the additive manufacturing industry.

Stratasys PowderEase™ T1 System

The Powderease™ T1  is a 3-1 powder breakout, retrieval dosing station for SAF workflows. Allowing you to have a clean and controlled process that minimizes the need of having to physically break down your H350 powder cake.  Giving you a mess reduced, powder free dosing prepared to go back into your Stratasys H350 system.

The Process:

1. Load: Transfer the H350 powder cake into the enclosed station.
2. Breakout: Air + vibration loosens and breaks down the build – eliminating the need to manually break down powder with brushes and additional post-processing.
3. Recover: Freed powder is captured and contained for a cleaner workspace.
4. Sieve: Recovered powder is automatically sieved for consistent particle quality.
5. Store: Virgin powder is then kept in a bulk hopper, separate from recovered stock.
6. Dose: The system delivers clean, ready-to-load dosing back to the H350—ready for your next build.

Conclusion

SAF ReLife™ PA12 is a game changer recycling previously discarded PA12 into production-ready parts while lowering both cost and carbon footprint. Curious if Selective Absorption Fusion fits into your next workflow? Reach out to our team and consult through our Advanced Manufacturing Services. It is time to accelerate your sustainability!  Register here to learn how Wehl Green and Stratasys are continuing to strive towards a cleaner environment and thrive in the sustainable innovation space.