PVC compounds can be formulated,using mang different type of additives which makes PVC has been so successful as a commodity thermoplastic, from medical applications such as tubing and blood bags to long life applications such as window frames and rainwater goods.Flexible PVC compounds usually called PVC-P formulated with plasticizers which help give them “rubber like” properties.Rigid PVC compounds usually called PVC-U without plasticizer: high hardness, excellent mechanical properties, andhigh melting point.
PVC compounds contains other materials like stabilizers, additives, fillers, reinforcements, and flame retardants, must be intensively mixed in the compounding machinery.The dispersive and distributive mixing is critical, and all in compliance with well defined temperature limits.
Compounding PVC involves several processing challenges, requiring significant attentions to temperature sensitivity, filler levels, volume and volatile components.Efficient temperature control is particularly important because PVC degrades when exposed to higher mixing temperatures.Furthermore, precise temperature control not only enhances production rates but also reduces costs by reducing the reliance on heat stabilizers.Opertions involved in the process of pvc compounding and pelletizing
1.Feed the PVC material into the high-speed mixer, and the screw loader to transport the mixed powder into the first-stage parallel co rotating twin-screw extruder.
2.After efficent plasticization and homogenation on the twin-screw extruder at a temperature of 150-160°C,the melted compounds directly enters the large-diameter second-stage single-screw extruder, without compressed by the die head.
3.The single-screw extruder complete the extrusion granulation at low screw speed, high pressure, and cooling conditions. The temperature of melting pvc compounds should drop to 120-140°C before entering the air-cooled hot face pelletizing system.
4. After pelletizing, cooled by the secondary air-cooled cyclone separator,the granules temperature can be dropped to 35°C-40°C . After the air-cooled vibrating sieve, the granules temperature drops below room temperature to be sent to the final product silo for packaging.
Name: JY72-180 two stage extruder
Output：500-800kg per hour
Model | Twin-screw | Screw diameter (mm) | L/D | Main motor KW | Screw rpm | Output Kg/h |
Single-screw | ||||||
JY50/100 | SHJ-50 | 50.5 | 32-68 | 27-45-55 | 500-800 | 100-300 |
SJ-100 | 100 | 7-20 | 18.5 | 60-86 | ||
JY50/150 | HT-50 | 50.5 | 32-68 | 75-110 | 500-800 | 300-500 |
SJ-150 | 150 | 7-20 | 37-45 | 60-86 | ||
JY63/150 | SHJ-63 | 62.4 | 32-68 | 55-75-90 | 500-800 | 200-500 |
SJ-150 | 150 | 7-20 | 37-45 | 60-86 | ||
JY63/180 | HT-63 | 62.4 | 32-68 | 75-110 | 500-800 | 350-800 |
SJ-180 | 180 | 7-20 | 45-55 | 60-86 | ||
JY72/180 | SHJ-72 | 71 | 32-68 | 200-280 | 500-800 | 400-800 |
SJ-180 | 180 | 7-20 | 45-55 | 60-86 | ||
JY72/200 | HT-72 | 71 | 32-68 | 200-280 | 500-800 | 500-1200 |
SJ-200 | 200 | 7-20 | 55-75 | 60-86 | ||
JY92/200 | SHJ-92 | 91 | 32-68 | 250-315 | 500-600 | 600-1200 |
SJ-200 | 200 | 7-20 | 55-75 | 60-86 | ||
JY92/250 | HT-92 | 91 | 32-68 | 450-550 | 500-600 | 1500-2600 |
SJ250 | 250 | 7-20 | 110-132 | 60-86 |
Higher efficiency and capacity
Widely used in kinds of heat-sensitive materials and high powder filling operation system, such as: PVC, XLPE, halogen-free flame retardant cable, shielding material, carbon black master batch, etc.
Industry-leading machining centre
The most difference making us outstanding than other factories is our strong processing capability .
Equipped with more than 50 sets of various types of machining equipment,core parts of the twin screw extruder are all manufactured at our own factory which makes the production cost and quality controllable .
Twin screw extruders core components are all self-made to guarantee the machine quality.
Gear box-self made
Torque rating grade: T/A3≤8 domestic standard major parts
New structure design and high precision grinding of hardened gear teeth to ensure the gear box long time high efficiency working.
Screw-self made
Screw element is with closely intermeshed design, block type and can be easily exchanged to suit different material.
Barrel-self made
Precision grade can reach to IT 6. It is benefit for energy reduction and block type design makes it possible for various combination.
Customized Service
Each solution will depend on a case by case basis.Nanjing Jieya,with in-door manufacturing workshop,could provide customized service according to customer's special requirements ,such as design of barrel structure, screw elements, feeding hopper,etc .
Q1. What about the payment way?
By TT. 30% down payment should be paid after contract is valid, 70% balance should be paid before shipment.
Q2. Installation and stuff training available from you?
Yes, we have rich engineers around the world which can send to your factory and train your workers. Also we can online guide your members.
Q3. How long is the guarantee?
We offer you high quality machines with 12 months guarantee and reply you as soon as possible within 4 hours.
Q4. If the machine some parts is broken one day, how can we get help from you?
We will send you spare parts free of charge If they are in warranty, not including easy-broken parts. For easy-broken parts, we will only charge a cost fee.
Q5.How does your factory do regarding quality control?
We have passed the IS09001:2000 Quality Management System and CE certificate and we have a special QC department in charge of products' quality. If you also need other certificates, we also can help to apply.
Q6. What is your packaging?
Our conventional packaging is: After doing the anti-rust treatment, wrap the plastic film around the machine and then fix the machine on the wooden bracket.
Q7. How can we check the machines before delivery?
You're welcome to our factory for inspection .We also can provide online checking when testing the machine on site. We will take and prepare detailed testing videos for your checking before the delivery.