Sound-Proof Central Granulator SG-5090


SG-50 series granulators are applicable to granulate various kinds of plastic materials from injection moulding, blow moulding or extrusion molding. This series feature compact design, easy operation and quick blade replacment. It is great in motor power, cutting chamber size, and output capacity. Gradually inclined cutting and integrated power design offer a better cutting effect and a lower noise level.


  • Rotating cutters adopt newly developed V-type cutting technology which can send the feeding material into the center of rotating cutters so to prevent the material from adhering onto the inner side of the cutting chamber while enhancing its wearability.
  • The cutters are made of imported high quality steel featuring wearability, high rigidity, long service life and reusable after sharpening.
  • Equipped presetting knife jig, simple cutter installation adjusting technology makes the rotating blades be adjusted within clamps outside machine, no longer needs to be adjusted from inside of machine as before.
  • Cutting chamber made of high rigidity material, after processing by CNC, machine, has the features like high intensity, super wearability, no contamination, long service life and easy for maintenance and repairing.
  • Optimized structure and hermetic double sound-proof layers keep noise level low.
  • Sound-proof feeding box reduces the noise level in operation, also equips a safety material checking curtain which ensures no material sprinkling during granulating.
  • V-type transmission belts help maintain a balanced operation mode, close contact, and also easy to disassemble and repair.
  • Feeding box which is opened by electrical handspike with self-lock function ensures safely operation.
  • Cooling pipe at rear plate of cutting chamber can effectively cool down and prevent the inside material from melting up.

Accessory option

  • Cyclone dust separator is available for choose and the height of its floor stand can be adjusted on different requirements.
  • For granulating thick or heavy material, extra fixed knives are available to increase the granulating capacity.
  • For fibre-added material, increase SG-50 fibre-added model for choose, Adopt surface-hardening treatment on the material contacting components blade material is V-4E joint with S50C.
  • Separate blower, conveyor and material side feed pipe are optional.