Looking at the current state of the 3D printing market, you might have noticed that processes outside the realm of FDM are becoming more affordable and readily available. Selective laser sintering (SLS) is a quintessential example of this technological shift.

About five years ago, you’d be hard-pressed to find a desktop-sized SLS 3D printer, let alone at a low price point. But in 2014, a Swiss company called Sintratec helped transform the market with the Sintratec Kit, a compact SLS machine that was priced around $5,000. Since then, the manufacturer has continued on its mission to bring SLS 3D printing to the masses, releasing the professional-grade Sintratec S1 shortly after.

Read more: 6 Benchtop SLS Printers for Small Businesses

During Formnext 2018, one of the largest additive manufacturing trade shows on the planet, the Swiss manufacturer unveiled the Sintratec S2. Marketed as a compact and modular SLS 3D printer, the manufacturer has created a system that consists of all-in-one integrated and semi-automated processes starting from around $30,000.

In other words, the Sintratec S2 is much more than just a laser sintering machine, it’s also built to handle post-processing, material handling, and much more. With a keen focus on modularity, this system can be expanded to meet the demands of each user. Sintratec has also integrated an unprecedented level of automation into the S2, effectively reducing downtimes and making the entire process more cost-effective.

Needless to say, it seems possible that Sintratec has once again brought benchtop SLS 3D printing to a whole new level. Let’s review the features and specs of the Sintratec S2 to find out more about this all-encompassing additive manufacturing system.

Sintratec S2 SLS 3D Printer – Review the Specs & Price

Features

Image of Sintratec S2 SLS 3D Printer – Review the Specs & Price: Features

Similar to the Sintratec Kit and Sintratec S1 before it, the Sintratec S2 is a compact and affordable SLS 3D printer. However, unlike its predecessors, this new system is fully modular and includes automated processes that make it a true end-to-end solution. According to the manufacturer, the Sintratec S2 is engineered for functional prototypes and small-to-medium series production.

Sintratec believes that the S2 is a first for SLS 3D printing, as it includes all-in-one integrated and semi-automated processes that include laser sintering, de-powdering, material preparation, and surface treatment. Not only will this grant users with high-quality laser sintered parts, but it will also make the entire process more economically sound and eliminate the time-consuming cleaning process.

Starting at around $30,000, the stock offering of this modular system comes with the Laser Sintering Station (LSS), Material Handling Station (MHS), and Material Core Unit (MCU). Depending on the production needs, users can also tack on the Blasting Station, Polishing Station, and Vortex Unit to the ecosystem.

As you can tell, there’s a lot to unpack here, so let’s start with the heart and soul of this system: the SLS 3D printer itself.

The Laser Sintering Station features a cylindric printing area that includes a new heating and ventilation concept, optimizing the consistency and repeatability of the printing process. It also has a built-in 4K camera that allows the user to monitor each print job, and also evaluate the surface of every layer in real time.

In order to increase the print speed, Sintratec has integrated a precise laser scanning system into the machine. The Sintratec S2 is also equipped with an intuitive touchscreen that offers full control over the printer. The build chamber has a height of 400mm and diameter of 160mm, which is a major size increase over the S1 model.

There are some key specifications that the manufacturer has yet to release, particularly regarding the print speed and resolution. However, we will continue to monitor this printer and provide the details as they come to light. While all of these features are worth boasting about, the truly innovative aspect of the Sintratec S2 is the modularity of the entire system.

Inside of the Laser Sintering Station is a removable build chamber labeled as the Material Core Unit. This part of the Sintratec S2 includes a powder mixing function that automates the typically messy powder handling process. On top of that, users can add an additional Material Core Unit to process different materials without much manual effort.

Meanwhile, the Sintratec Material Handling Station is used to collect used printing material effectively and cleanly, automatically sieving the powder for reprocessing. You can also enhance the system by equipping the Sintratec S2 with a number of other modules, including the Sintratec Blasting Station, Sintratec Polishing Station, and even a Vortex Unit.

The Blasting Station can be utilized to improve the quality of the print surface, making the SLS parts more visually appealing. If you want to seal surface impurities and create a smooth, stainless steel-like finish, you can also equip the Polishing Station, which consists of a magnetic tumbler. Finally, the Vortex Unit acts as a single-motor wet and dry vacuum cleaner, helping users keep their workstation nice and tidy (and most importantly, powder free!).

Thanks to the modular and automated nature of the Sintratec S2, the manufacturer believes that its latest system is well-suited for nearly any type of engineering application. Sintratec boasts that its new SLS 3D printer is ideal for producing geometrically complex prototypes and end-use parts.

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Sintratec S2 SLS 3D Printer – Review the Specs & Price

Technical Specifications

The Sintratec S2 has just been unveiled, but the Swiss manufacturer has already released the technical specifications for the Laser Sintering Station, Material Handling Station, Material Core Unit, and other parts of this expansive modular system. Here’s what we know so far:

Laser Sintering Station (LSS)

  • X-Y laser scanning system for fast printing
  • High-resolution camera for real-time evaluation
  • Touchscreen for direct operation
  • Network connection for remote control and monitoring
  • Contactless point measurement for powder surface temperature control
  • Multi-zone heating
  • Physical Dimensions: 1,500 x 1,000 x 750 mm
  • Weight: Less than 100 kg
  • Power supply: 230 V | 2 kW max

Material Handling Station (MHS)

  • Air filtration system
  • High-resolution camera for real-time evaluation
  • Touchscreen for direct operation
  • Network connection for remote control and monitoring
  • Integrated screening function
  • Integrated mixing function
  • Integration with Sintratec Vortex Unit
  • Physical Dimensions: 1,650 x 1,000 x 750 mm
  • Weight: Less than 100 kg
  • Power supply: 230V |1.5 kW max

Material Core Unit (MCU)

  • High level of process reliability
  • Optimum mixing ratio
  • Automatic powder detection
  • Integrated multi-zone heating for build cylinders
  • Two internal powder tanks for quick layer changeover
  • Integrated re-coating system (coordinated to powder)
  • Build cylinder height: 400 mm
  • Build cylinder diameter: 160 mm
  • Physical Dimensions: 1,100 x 870 x 550 mm
  • Weight: Less than 100 kg

Blasting Station

  • Dust-free work thanks to full circumferential seals on the cover frame and door frame
  • 12 V fluorescent tubes with 230 V power supply unit and an external switch for excellent visibility
  • Suitable for different blasting materials such as quartz, glass beads, and plastic beads
  • Working pressure: 2.8–8 bar
  • Compressed air connection: 3/8”
  • Internal dimensions: 580 x 480 x 300 mm
  • External dimensions: 590 x 485 x 490 mm
  • Weight: 17.25 kg

Polishing Station

  • Autonomous and compact system
  • Sealing of surface impurities
  • Several components can be processed at the same time
  • External dimensions: 290 x 290 x 340 mm
  • Weight: 20 kg
  • Speed: 2,800 revolutions per minute (rpm)

Vortex Unit

  • Single-motor wet and dry vacuum cleaner
  • High-efficiency cyclone pre-separator
  • Anti-static industrial vacuum cleaner
  • Weight: Approx. 20 kg

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Sintratec S2 SLS 3D Printer – Review the Specs & Price

Where to Buy & Price

Prices for the S2 start at $30,000 for a Laser Sintering Station (LSS), Material Handling Station (MHS), and Material Core Unit (MCU). Depending on production needs, there’s a Blasting Station, Polishing Station, and Vortex Unit available.

You can request a quote for the Sintratec S2 3D printer system directly from the manufacturer:

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