Model reference

3D Systems EXT 220 MED — Technical data

The EXT 220 MED, formerly known as the Kumovis R1, is a 3D Systems filament printer for medical high-performance polymers. It processes PEEK, PEKK, PPSU and resorbable polymers into patient-specific implants, surgical instruments and devices. To do so it heats the chamber to up to 250 °C and the nozzle to up to 500 °C; HEPA filtration in the build chamber meets ISO 14644 Class 7, so the system can run in a cleanroom. According to the product page, the cylindrical build volume measures Ø 180 × 150 mm, driven by delta kinematics.

For a used purchase, documentation matters as much as the hardware: validation and maintenance records, filter changes and calibration logs determine whether the system can continue in a regulated environment. Also check hotend and nozzles, chamber heating and the condition of the HEPA filters. The machine needs 400 V three-phase and compressed air. Whether medical materials and process parameters transfer with the system belongs in the contract.

Specifications

Weight450 kg
Dimensions823 × 985 × 1950 mm
Druckgeschwindigkeit100–3500 mm/min
Druckluft5–10 bar, 40 l/min
Düse0,4 mm (optional 0,2 und 0,6 mm), bis 500 °C
Filament1,75 mm
KinematikDelta-Kinematik
KonnektivitätEthernet (RJ45)
MaterialienMedizinische Hochleistungskunststoffe: PEEK (u. a. VESTAKEEP i4 3DF für Langzeitimplantate, VESTAKEEP Fusion mit Calciumphosphat, kohlefaserverstärkt), PEKK, Radel PPSU sowie resorbierbare RESOMER-Polymere (PDO, PCL, PLLA, PLGA)
Reinraumintegrierte HEPA-Filterung im Bauraum, ISO 14644 Klasse 7
Layer Resolution50–400 µm
TemperaturenBauplatte bis 300 °C, Bauraum bis 250 °C
Build Envelope in mm (x/y/z)Ø 180 × 150 mm (zylindrisch)
Precision100 µm (X/Y/Z)
Power Supply380–400 V AC, dreiphasig, 15 A, 50–60 Hz

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All information according to manufacturer specifications, errors excepted.