Lab Extrusion Machines

HARDEN INDUSTRIES LTD is an industrial group specializes in the design and manufacturing of plastic processing equipments.

POTOP is one of their brands which focus on design and manufacturing laboratory extrusion machines. They are capable of providing various customized solution for rubber-plastic processing and property test. With more than 10 year’s experience, they have successively developed a lot of patent product such as "fish-eye” tester, master batch dispersion tester, lab precision cast film extrusion line, lab precision blow film extrusion line, polymer MDO/BO film stretching machine, triple screw compounding extruder, and 1.5 screw compounding extruder, etc.

The products are advanced designed, high precision and high stable with reliable and instant after-sales service. The customers range from international companies such as 3M, LABTECH, ZTE, European Plastic, Green Field, Heat Trap, Dongfang Steam Turbine, Yanshan Petrochemical, China Weapon Industry Group, etc. to lots of universities such as Sun Yat-sen University, South China University of Technology, Guangdong University of Technology, Shanxi University of Science and Technology, Xi’an Polytechnic University, East China University of Science and Technology, Changzhou University, etc.

Torque Rheometer
Product specifications

  • Measuring condition is close to actual production
  • High precision measurement can recognize subtle changes in structure and ingredients
  • Integrated frame saves much space
  • Easy to operate, disassemble and clean
  • Mechanical-electro double overload protection device


Extrusion Capillary Rheometer

Product specifications

  • High precision temperature and pressure transducers
  • Mechanical and electro double overload protection device
  • High precision electronic balance
  • Swift screen changer saves much time
  • Space saving integrated frame

 



Lab Banburying Module

Product specifications

  • Measuring condition is close to actual production
  • High precision measurement can recognize subtle changes in structure and ingredients
  • Modula design makes the unit easy to operate, load and clean
  • Mechanical and electro double overload protection device

 



Lab Single / Twin / Triple Screw Extruder

Product specifications

  • The structure of the gear transmission box is optimized by CAE software
  • By rearranging block barrel and screw combinations according to the processing characteristic of specific material, it is available to process various materials
  • Swift screen changer makes cleaning much easier
  • Import core parts are adopted in the vacuum exhaust and cooling device and guarantees the stable

 



Lab Precise Single Screw Extruder

Product specifications

  • Screws of high machining accuracy are made by the domestic famous professional screw manufacture Huaye
  • Nord variable frequency motor ensures accurate rotate speed of the screw
  • High strength aluminum alloy transmission gear box and cone small roll thrust bearing brings a stable operation
  • Independent temperature control funs
  • The euro aluminum alloy frame obtains light weight, high strength, excellent corrosion resistance and long service life
  • Removable stainless steel made hopper

 



Lab Precise Blow Film Unit

Product specifications

  • The electric lifting film carriage guide pillar makes high processing technique requirements possible
  • Membrane plane retractable unit makes it easy to load and transport
  • Chrome coated and mirror polished roll surface can produce a much fine sheet
  • The euro aluminum alloy frame obtains light weight, high strength, excellent corrosion resistance and long service life
  • 304 stainless steel made desktop

 



Lab Precise Cast Film Unit

Product specifications

  • Nord variable frequency driving motor ensures accurate rotate speed of the screw
  • Chrome coated and mirror polished roll surface produce a much fine sheet
  • The anticathode oxidation treated aluminum alloy flatten roll
  • The euro aluminum alloy frame obtains light weight, high strength, excellent corrosion resistance and long service life
  • 304 stainless steel made desktop

 



Lab Precise Three Roller Calendar

Product specifications

  • Three independent diving rolls enhance the adjustment flexibility
  • Nord variable frequency driving motor ensures accurate rotate speed of the screw
  • Chrome coated and mirror polished roll surface can produce a much fine sheet
  • The euro aluminum alloy frame obtains light weight, high strength, excellent corrosion resistance and long service life
  • 304 stainless steel made desktop

 



Lab Precise Film Stretching Machine

Product specifications

  • Preheat roll, drawing roll, annealing roll, chill roll are all controlled by independent servo motor
  • The space between drawing roll is adjustable, weakening the necking effect
  • The die machine and conduction oil are chosen for temperature control
  • The euro aluminum alloy frame obtains light weight, high strength, excellent corrosion resistance and long service life
  • 304 stainless steel made desktop

 



Lab Precise Multi-function Film Processing Machine

Product specifications

  • Integrating casting, drawing, traction, unwinder into one
  • Equipped with casting roll lifting mechanism and adjustable die lips
  • The die machine and conduction oil are chosen for temperature control
  • All rolls are driven independently by International brand servo motor
  • The space between stretch rolls is adjustable

 



Lab 1.5 Screw Compounder

Product specifications

  • The auxiliary screw exists along the feeding port only and the tablets on auxiliary screw pressure materials into the main screw channel
  • Nord variable frequency driving motor and reduction box ensure accurate rotate speed of the screw
  • High strength aluminum alloy transmission gear box and cone small roll thrust bearing brings a stable operation
  • The euro aluminum alloy frame obtains light weight, high strength, excellent corrosion resistance and long service life
  • 304 stainless steel made desktop

 



Lab Twin / Triple Screw Compounder

Product specifications

  • Parallel two/three axis type high speed and high sexual transmission box is adopted and the integrated main transmission and torque distribution makes a compact structure
  • Nord variable frequency motor and reduction box ensure accurate rotate speed of the screw
  • The euro aluminum alloy frame obtains light weight, high strength, excellent corrosion resistance and long service life
  • 304 stainless steel made desktop

 



Lab Granulator

Product specifications

  • The euro aluminum alloy frame obtains light weight, high strength, excellent corrosion resistance and long service life
  • Nord variable frequency motor and reduction box ensure accurate rotate speed of the screw and uniform granule size
  • High strength aluminum alloy granulator equipped with alloy tool steel cutter
  • Silicone material pressure roll
  • Via the visualized windows the whole granulating process can be observed
  • Stopping automatically when the door opens