WASP 4070 HDP — Technical data

The WASP 4070 HDP is the pellet version of the 4070 family and was presented at formnext 2021. Instead of filament it processes granules, which are conveyed pneumatically to the HDP extruder; WASP quotes up to 350 g/h with a 1 mm nozzle and hotend temperatures up to 280 °C. The machine therefore targets standard and recycled plastics such as PLA, ABS, PP, TPU or recycled PET. According to the specification table, the build volume is Ø 400 × 600 mm; the chamber heats to 50 °C and the bed to 120 °C. Frame, dimensions and the 95 kg weight match the filament models 4070 ZX and FX.

Before buying a used 4070 HDP, let the pellet feed run for a while without stalling. Granule residue and dust in the feed path, discoloured deposits in the screw or an uneven material flow point to neglected maintenance. A compressor with 8 bar and a 10 l receiver is not included. Ask which granules have been processed: switching between PP, TPU and recycled material requires thorough purging. Check nozzle wear, bed surface and delta arms. Print profiles in Simplify3D are helpful; WASP includes a licence, provided it is transferred.