China-Co-Rotating-Parallel-Twin-Screw-Extruder-Plastic-Extruder

Each machinery is made of high quality stainless steel with the  motor of Siemens.Special for waste plastic recycling, and convert to PP PE PET PS ABS PA PVC etc granules.

SPECIFICATION :
NR-II-46 Twin Screw Extruder
Screw Diameter: φ46.7mm
L/D: 40
Screw RPM : 500r/min
Quantity of barrel : 10 pcs
 
Barrel design :
1-10 barrel is made of Double metal  material ,hardness :HRC 60-62
Screw material is made of High speed tool steel, hardness: HRC 58-60
All the barrel are heated by electric heating;(Except the first barrel). All the barrel are cooled by water .

NR-II-46 Standard volume Type feeder:
The double screw feeder can process the powder or granule material ,It is through adjusting the screw speed to change the feeding ability, co-rotation and meshing of twin screw has strong self-cleaning capacity .  
 
Main Motor-AC Motor:
Main motor of extruder is Siemens AC motor, The cooling of the motor is by installing the fan on it. Air inlet of the cooling fan must be installed in a clean space,Workshop temperature should not exceed 40 ºC (degrees Celsius). Maximum installation height of Motor cannot more than 1000 m above Altitude elevation. Other environmental conditions will lead to different motor actual output power.

Main Gear Box:
Elaborately designed high speed gear box by Freesiamacross in Japanese.Speed reducer and torque distribution as a whole.The gear is made of high quality alloy material,According to international standard ISO6336-1996ME level control, ISO1328-1995 accuracy of cylindrical gear precision , adopted the teeth surfaces of gear after carburized and quenched .Exclusively  use grinding software  to trim the gear tooth profiles specially .
Ensure the gear strength,Uniform tooth load , High strength and low noise. After various improvements, which makes the new NR gearbox bearing capacity and power configuration significantly increased. Much advantage compare with the same equipment .

Screw shaft and screw element:
Special CNC forming grinding process for conveying components, 3D meshing curve high precision.
All the meshing components are processed by machining center, which has good uniformity and high process repeatability.
Co-rotation,double screw inter-meshing ,good  self-cleaning ability ,Narrow residence time distribution, improve the quality of material processing products.
The feature of Screw shaft and screw element as below:
Conveyor element : different lead, different length of conveyor components.
Meshing element:different angle , different length and thickness of the meshing components.
Special materials and processes by the particular components .
Between Screw elements and the shaft and using more suitable for extruder of involute spline connection: high load capacity, easy installation.


advantages :
Twin screw extrusion has become the standard over time in several industries because it offers numerous advantages over single screw extrusion:
More consistency in production and control of product quality
Increased productivity due to continuous processing, faster start up and shut down between product changes, quick changeover and advanced automation
Greater flexibility, with the capability to process a wide range of raw materials
Optimized footprint thanks to energy and water savings
Simple and easy to maintain and clean.
Application:
1.Fiber reinforcement: glass fiber, carbon fiber reinforced PP,PA,PBT,ABS,AS,PC,POM,PPS,PET,
PPO,PSF,LCP,etc.
2.Ploymer blending :bleding of PC+ABS, PA+ABS,CPE+ABS,PP+EPDM,PA+SBS,etc.
3.Incorporation of fillers :CaCO3,Tale,TiO2,carbon black filled PE,PP,or EVA etc.
4.Cable Compounds:cable sheath,cable insulation compounds of LDPE,HDPE,LLDPE,MDPE;radiation-crosslinkable compounds ,optical fiber protection compounds ,heat-shrinkable polymer compounds. 
5.Special Compounds :PPR pipe compounds,PE compounds for crosslinked pipes,tobacco filter 
compounds,etc
6.High Concentration Color Masterbatches: PE,ABS,PS,EVA,PET,PP etc. With high concentration of pigments and other procrssing aids.
7.Masterbatches with Flame Retardants:PP,PA,ABS,EVA,PBT etc.with flame retardants and other
 additives.
8.Special Functional Masterbatches :Masterbatches with anti-static,anti-abcteria ,or other 
special functional fillers.
9.Masterbatches for Degradable Polymers:PP,PE,PS etc. Blended with high concentration of 
starch and other processing aids.


Service :
1.Provide feasibility process experiment for customer.
2.Provide the unit layout and related technical conditions for customer after signed the contract .
3.Provide pre-acceptance ( Including Commissioning Test) to customers before the equipment send out from factory .
4.Provide detailed production plan and order status to customers . 
5.Provide equipment installation and commissioning after the machine reached customer's company . (If need technical engineer go to foreign country , the total cost should be in charge of buyer )
6.Provide training of operation and maintenance for the customer during equipment commissioning.
7.Provide one-year equipment warranty .
8.Provide customer's production line maintenance,new product development ,technical advisory services and spare parts for a long time .

Company culture :
Sincerity - Every machine is sold with honest and ethical representation.  This is supported us to being a trusted supplier . 
 
Support - We believe that family should be the reason to do business, not the cost of doing business.  That's why we support and train our employees constantly, ensuring that they maintain a competitive level of competency in a constantly-changing industry.
 
Service - We are committed, first and foremost, to serving our customers, which is why we have developed the best service organization in the business, complete with 24-hour guaranteed response if your machine is down.  We understand that our customer base is the life of our business and we strive to maintain long-term, meaningful relationships with every one.


FAQs
Q1. Which material can be used for the machinery ?
All the machinery produced by our company is made of stainless steel which eliminates rust corrosion and easy to clean, prevent your material from contamination of foreign substances. Also it makes a more beautiful look. 
 
 
Q2. How can I control the quality of the goods?
We have strict quality control in production process. 
And we also offer the time plan of the production state to you every time , you can see every step of your machinery to be made in detail . High quality is our stander to make sure that we could establish long -term business with our customers instead of Short-sighted benefit . 
 
Q3. Does your products has any guarantee  ? 
Longshi Machinery guarantees all new products and parts to the first owner-operator to be free defects in material and workmanship for a period of 12 months from B/L date, under normal use and service.
 
Q4. How about the lead time ?
This part is our strongest part , for meeting the customers big demands , we have some products in stock which will certainly help our customer to save their time and increase the production capacity . Also if the products is out of stock , we will try our best to meet make the products at earliest time , about 20 days . And each machinery will have a specific time schedule to ensure about the customer know all the detail and have good plan for preparation work . 
 
Q5. About Shipment.
If you have your own forwarder. We can deliver the goods to your forwarder's warehouse.  
We also have good cooperated forwarder, if you are not convenient at this part, we can arrange our forwarder to ship the goods to you.

 

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