Pragya Precision Equipment



Expander & Extruder




We are specialize in manufacturing and supplying Expander / Extruder. These are used for oil extraction from oil seeds and making cakes for solvent extraction.

Application :

  • To process flakes to make porous cake good for solvent extraction.
  • To squeeze partial oil from highly oil content seeds like Rapeseed, Sunflower etc.
  • To process castor expeller cake to convert in to porus cake good for solvent extraction.


Details :

  • Type - Most modernized unit with updated features and improved metallurgy of worms and hardened sleeve provided throughout the barrel length to protect main barrel from wear and tear
  • Attachments - Most modernized hydraulic Auto run with Adiabatic Accumulator and Extra long squeezomatic supplied along with expander / extruder.
  • Capacity - Various models available with capacity range from 50TPD to1000TPD.
  • Made out of special metallurgy duly hardened for better performance i.e. low wear and tear


Construction :

  • Drive - Through single piece bearing housing fitted with set of Axial cum Radial Load bearing coupled to Electric motor through Gearbox / pulley.
  • Main Barrel  - Seamless cold drawn steel pipe duly machined internally & externally for accurate fitment of worms & scrapper bolts.
  • Worms - Set of staggered pitch worms provided for gradual loading and smooth advancement of material. Worms made out specially metallurgy material duly hardened for better life.
  • Body - Mandrel actuation in phosphorous bronze linear duly lubricated for higher sensitivity and proper action
  • Hydraulic Cylinder - Fitted with German polymer seals and hardchroned piston rods duly ground and seamless honned tubes.
  • Hydraulic Power Pack - Provided with pump, motor, control valves, pressure switch for Auto tripping to save electric energy.
  • Adiabatic Accumulator - Most modernized setting free, charging free, maintenance free unit highly active and sensitive in energy storage and releasing when required.