CreatBot PEEK-250 

The PEEK 250 is an Ultra High Temp desktop 3D Printer that is capable of printing a huge range
of filaments including High Performance Engineering-grade materials such as PEI (ULTEM™Full line),
PEEK, PEEK-CF(Carbon fiber), PEEK-GF(glass fiber), PEKK etc.

• Printing size：250*250*300mm
• NozzleMax Temp 480°C
• Build Plate Max Temp 200°C
• Internal Chamber Max Temp 200°C
• Water cooling/ Heat isolation system

Ultra-high temperature extruder system

Equipped with a double-tooth silicon carbide extruder, it has the characteristics of large torque,
super wear resistance, and no step loss. It can print all filaments below 500°C, especially carbon fiber
and glass fiber materials.

Water cooling device is necessary, which is the key to smooth printing of high-temperature filament.
The hot-end is an Integrated die-casting wear-resistant nozzle, which can be replaced within
30 seconds without removing other parts or screws.

Wärmedämmung/Sicherheit der Kammer

Zum ersten Mal wird eine wärmeisolierende Sportschutzhülle in Luftfahrtqualität in
einem professionellen 3D-Drucker verwendet.

Durch cleveres Design, Mehrweg-Wärmeableitung, kundenspezifische hochtemperaturbeständige Teile
und die Verwendung von mehrschichtigen wärmeisolierenden Materialien steigt die Temperatur der Vordertür,
der oberen Tür und des Bildschirmbereichs, wenn die Kammertemperatur 180 °C erreicht Die Temperatur im Gehäuse,
am Gehäuse und an den Seitenwänden der Maschine darf maximal 40 °C betragen,
um die Sicherheit der Benutzer zu gewährleisten.

200°C thermally uniform chamber

High temperature platform 200°C

• Aviation-grade ultra-flat platform + polymer-based coating
• Natural flatness 0.05mm
• High temperature flatness 0.1mm (cavity temperature 180°C)
• No manual or automatic leveling required, avoiding manual leveling or sensor failure in high temperature environments

One-stop annealing function

After the model is printed, there is no need to peel the model from the platform, cool it naturally,
or anneal it in the annealing furnace.

You can select the “direct annealing after printing” function for the corresponding material such as PEEK, PEI,
etc. on the screen in advance. You can also modify the built-in annealing temperature
and time in the settings to achieve one-click annealing.

Why is a 180°C and above heated chamber important?

①180°C ambient temperature is the required temperature for PEEK material to anneal.

Therefore, after the device prints the PEEK model, it can be annealed directly in the device.

• The advantages of doing so are:

• (1)There is no need to remove the model from the platform to avoid the bottom of the model losing platform adhesion, resulting in the internal stress of the bottom model losing platform restraint, causing the bottom of the model to deform after post-processing.
• (2)Avoid shutting down and cooling the model to take out the model. There is no exchange of hot and cold environments, which causes the model to have a large temperature difference in a short period of time, and the internal stress is fixed, and it cannot be effectively post-heat treated.
• (3)After printing, the annealing treatment can be set directly inside the printer without any time delay. For example, it is set in advance to stand in a 180°C environment for 5 hours after printing, and then stand in a 120°C environment for 5 hours to fully anneal the PEEK parts.

②180°C is the temperature at which PEI material can be perfectly printed.

• (1)Printing environment temperature requirements: Usually set between 160°C and 200°C to ensure that the material can be fully extruded and bonded and reduce the internal stress after molding to prevent cracking. The recommended ambient temperature is 180°C to improve fluidity, obtain higher combined line strength, and improve heat resistance and chemical corrosion resistance by reducing molding internal stress.
• (2)PEI has hygroscopic properties and can cause material degradation. The humidity value is required to be less than 0.02%. The drying conditions are 150°C and 4 hours of drying treatment, and the drying treatment can be carried out directly in the cavity.
• (3)PEI materials also usually need to be annealed after molding to eliminate the internal stress generated during the molding process. The advantages of direct annealing are the same as PEEK.

Why has it previously been so difficult for 3D printers
to raise the internal build chamber temperature to 180°C and above?

Through the previous knowledge popularization, we know that a high-temperature build chamber
is a necessary condition for good molding of polymer materials such as PEEK and PEI,
but why can’t the build chamber temperature of many other large industrial-grade 3d printers reach 180°C+?

70-80°C is the temperature limit of most circuit boards, motors, belts and other parts.
Exceeding this ambient temperature will cause these parts to break down.
Therefore, the temperature of ordinary printers with cavity temperature is at this level.

120°C is the temperature limit of high-temperature motors and belts. At the same time,
they need to be well cooled, shielded and heat-insulated or heat-dissipated for circuit parts, and heat-insulated for the cavity.

150°C requires a completely independent cavity closure design and heat-insulation design.
In addition to the heat screen and heat-dissipation design for all heat-resistant parts, the long-term durability
and heat uniformity of the heating device is also required and the multi-layer heat insulation design of the equipment shell.

For an ambient temperature of 180°C-200°C, an aviation-grade heat-insulating sports protective cover is also required.

The excellent sports heat-insulating material can completely isolate the air below and above the nozzle,
and circulate and replace the hot air gathered in the upper cavity with the hot air in the shell under balanced pressure.
Ensure that the external temperature of the shell meets the safety standards for human use.

Specification