Polymer Extrusion - Single Screw Extruder vs. Twin Screw Extruder

This video discusses difference between single and twin screw extruder. Role of different parts of screw and equipment.
Reference book : Polymer Extrusion by Chris Rauwendaal : a.co/d/ir06BOb
For queries contact us at [e-mail]

[@blarinat1]

Concise and clear presentation. Thanks a lot!

[@PolymerWorld]

Glad it was helpful!

[@anilverma-zj1of]

Excellent process 👍

[@sthembisoalvinxaba974]

this is so helpful - very insighttful

[@PolymerWorld]

Thanks for your feedback!

[@rskannan61]

very informative video. thanks

[@PolymerWorld]

Glad it was helpful!

[@tuanngocnguyen1262]

amazing! thank you very much!

[@PolymerWorld]

Thanks for feedback.

[@mohammedaliomer5653]

Good information.. But according to my practical experience.. Single screw is better for scrab material special if its pvc.. And twins screw for fresh material.. What do you think of that?

[@barancel11]

it was clear. thanks.

[@PolymerWorld]

Thanks for watching!

[@theloveandlightfamily6186]

Thank you, this was super helpful

[@luciajin77.hldextruder]

Hello, I'm Lucia.

[@toantran8665]

Thanks for the explaining. I totally understand.

[@PolymerWorld]

Glad it was helpful!

[@SachinChauhan-ng5wk]

wonderfull... superb.... good job...

[@PolymerWorld]

Thanks for the feedback.

[@ankitmehta7235]

Sirji mera machine mein him log direct pp bag fees karte hai no grinding no aglo..we make lumps but motor kaafi load leti hai kya isme heating ka koi roll hai aapke hisab se

[@rskannan61]

would love to see a short video for rubber extrusion using single screw with all features and functioning

[@PolymerWorld]

We will try...

[@jesseduncan1140]

instablaster...

[@sarwanms773]

Hello sir what is reason for unmelt in the extruder

[@ganeshmarathe9424]

Can we have a presentation on polyester fibre dope dyed extrusion..

[@arsend6951]

Please can you clarify to me, what does crystallization and dryer are used for? Are THOSE separate steps? Thank you very much.

[@PolymerWorld]

Crystallization and drying are separate process but certain polymers like PET, Nylon, PLA etc do crystallize during drying. The purpose of drying is to remove moisture to protect polymer during compounding from hydrolysis degradation. Whereas crystallization and annealing is process to enhance strength or reduce stress after product formation. Level of crystallization in final product is also controlled by controlling the drying condition during product solidification. So crystallization and drying are different steps but for some polymer they can happen at the same time.

[@arsend6951]

@@PolymerWorld thank you very much

[@hansonting6962]

I want to mix polymer with FR and UV additives but twin screw extruders are much to expensive. Would you recommend a single screw extruder? Or do you think it wouldn't be worth it.

[@PolymerWorld]

Hi, if additives are pre-mixed using some type of tumbler then single screw extruder can achieve good dispersion and performance.

[@Hartek-Extruder-Manufacturer]

Single screw is suitable for polymer plasticizing extrusion and granular material extrusion processing, the raw material is relatively pure or single; Twin screw have better mixing&plasticizing ability, can proceed different materials, add additives , liquid,or powder.

[@raviduggar1669]

Are u also having any presentation covering the combined details of extruder and pelletizer for PP application

[@PolymerWorld]

Sorry, currently we do not have presentation on combined system.

[@jiangtaojin9014]

hello，si please contact meow have your needs,
[phone]

[@navdeepsingh3101]

How to get the high extruder amp. On my machine after sometime amps decrease 😢. Hence the production

[@navdeepsingh3101]

Its single screw. And material is polyethylene natural or mix pallets.

[@user-nj1hx3yn1f]

Hello, can I have your request for a plastic injection machine?

[@nutchitajabprang6772]

Is the screw speed of the machine in Hz, and how to convert it to rpm?

[@PolymerWorld]

screw speed is taken in rpm. 1 Hz is equal to 60 rpm.

[@alomaraa84]

Hi dear
For production color masterbatch which is better single screw or twin screw?

[@PolymerWorld]

Both types of extruders have their strengths and limitations. Twin screw extruder is generally preferred for color masterbatch production due to its excellent mixing efficiency as it gives better dispersion compared to single screw extruder.

[@alomaraa84]

@@PolymerWorld thank you very much 🌹🌸🌷

[@cpplast]

Excelent

[@PolymerWorld]

Thank you for the feedback.

[@lokadioministries9114]

I want simple extruder for making pellets of all plastics

[@owais.khan99]

sir please guide me, can single screw machine make cpvc pipe??

[@PolymerWorld]

To achieve better dispersion of additives mostly twin screw extruder are used for cpvc pipes. But specially designed single screw extruder can also be used.

[@owais.khan99]

@@PolymerWorld
How to design it specially??

[@plasticextrudermachinedesi8342]

@@owais.khan99 Hello, Dear friend ,this is Wendy comes from Nanjing GS-mach Extrusion Equipment Co.Ltd.Which is a professional machinery designer and manufacturer.please contact me if you are interested.Whatsapp/Wechat:[phone] Email:[e-mail]

[@pradeepkhoje4971]

Hello Sir ,
How can I contact you for my doubts. ?

[@PolymerWorld]

you can email us your questions at chemscholar18 at gmail.com.

[@jiangtaojin9014]

[phone]

[@suhaspatil1904]

Where can I get good used extruders. Sir

[@PolymerWorld]

Sorry. We are unable to help you.

[@plasticextrudermachinedesi8342]

Hello, Dear friend ,this is Wendy comes from Nanjing GS-mach Extrusion Equipment Co.Ltd.Which is a professional machinery designer and manufacturer.please contact me Whatsapp/Wechat:[phone] Email:[e-mail]

[@shamimkhan-bi1rv]

Please send me the best specification extruder machines for PVC Pipe manufacturing industry and also name of the company for purchasing.

[@arumugaperumalchelliah1729]

Sir,
Air bubble roll manufacturer,I was run color roll but color changing scrap highly, any other material available in screw cleaning
How to calculate output per/hrs

[@PolymerWorld]

Here is the link for purging material. Depending upon polymer type and temperature you can select one
www.asaclean.com/purging-procedures/extrusion/cleaning-of-screw-for-extrusion/

[@mohammedmukarram8694]

BY What parameter the channel of the screw is decided. By decreasing distance between two consecutive flight can back pressure is increased.

[@PolymerWorld]

By decreasing the distance between the flights which is also called pitch, we will increase the compression/shear thus can achieve better dispersion but it will also increase the back pressure so there has to be a balance between dispersion and throughput.

[@user-wi7ge3lk3h]

❤❤❤

[@ajaysinghlife1785]

Twins screw Extruder machines price sir
Pls reply me

[@PolymerWorld]

Price for twin screw extruder will depends on many factor especially throughput rate and l/d ratio. Basic one will be in the range of Rs10-50 lakhs and high end in the range of Rs 1- 5 cr. Some small low shear may be below Rs 5 lakhs too. There are several online platform where use can check the price for different types.

[@plasticextrudermachinedesi8342]

Hello, Dear friend ,this is Wendy comes from Nanjing GS-mach Extrusion Equipment Co.Ltd.Which is a professional machinery designer and manufacturer.please contact me if you are interested.Whatsapp/Wechat:[phone] Email:[e-mail]

[@e00.7]

دكتور وهام ذبحنا بهذا الجهاز

[@sureshbhai3127]

Hello

[@danieljia5452]

hello please contact 0086 18151621522

[@raviduggar1669]

good content covering the basics. Please share me your email id for clarification on above presentation.

[@PolymerWorld]

Thank you for watching our video. Please send your query to [e-mail]

[@johnnybuoy9551]

wtf is wrong with the audio !

[@materialsworld4gate]

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