Working Principle: 

JW Extruder Spheronizer / Marumerizer combines screw extruder and spheronizer into one machine, which is used to make wet powder mixture into spherical pellets of 0.3-3mm for lab formulation development or small-scale production. The process is well known and widely used in the pharmaceutical, nutraceutical, catalyst, petrochemical, materials science and other industries. 

Raw material (wet powders prepared in batch kneader or high shear mixer) is fed into the screw extruder via the feed tray, where the screw extrudes the raw material through a conic die to make cylindrical extrudate of required size. The extrudate then falls onto the spinning friction disc, which throws them against the inner wall of the cylindrical bowl. The extrudate quicky breaks into segments of 1-1.2 times their diameter in length. These segments repeatedly collide with the bowl wall and then are thrown back to the inside of the friction disc. This ongoing process creates a "rope movement" of product along the bowl wall and gradually convert the cylindrical segments into compacted spherical pellets. When the particles have reached the desired level of sphericity, they are then discharged from the spheronizer.

Technical Features: 

• Screw extruder and spheronizer are combined into one compact machine.
• All the extrusion parts and spheronization disc can be easily dismantled for cleaning.
• The hole size of conical die for extrusion can be 0.3-3mm
• Different types of friction plate (or spheronization disc) are available: smooth disc, groove pattern disc or inclined disc.
• Fines air is introduced into the spheronization bowl, which can not only prevents dust from getting between the rotating disc and the wall of the spheronization bowl, but also can remove the surface moisture of the granules to improve the friction forces and process efficiency.

Technical Parameters:

Note: JW Extruder Spheronizer is available in different sizes and configurations. The above models with typical design are indicative only. 

FAQ: 

Q: What information is needed in order to get a quote? 

A: Our JW Extruder Spheronizer is customized. The following information is needed to work out a detailed quote:

1)  What product you are going to make. Raw material sample might be needed for trial production or tests; 

2) Required spherical pellet size; 

3) Production capacity in kg/h; 

3) Power supply type: 220V/380V/415V/440V, 50/60Hz, Single/three phase 

Q: What is your normal lead time? 

A: All our machines are customized. The normal lead time is 30-40 days after receiving the advance payment.

Q: How the machine is packed?

A: The machine is packed in standard plywood box; 

Q: What kind of after-sale service can you provide? 

A: 1)  All our machines are fully tested before shipping. Detailed operation manual, which includes photos, installation & operation videos, layout drawings, electric drawings etc. is delivered with the machine. So the end-user can easily install and operate the machine. 

2) In response to cutomer's invitation, technicians can be sent to the end-user's workshop for installation, commissioning and training. 

3) Provide life-long technical consultation and favorable spare parts.