Twin screw extruder

High Capacity Twin Screw Extruder
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High Capacity Twin Screw Extruder

High Capacity Twin Screw Extruder

This high capacity parallel twin screw extruder is designed specifically for large-scale plastic granulation and modification, equipped with a high torque transmission system and precision temperature control technology, increasing production capacity by over 30%.
The equipment adopts a modular screw structure with excellent dispersion and mixing, which can stably process engineering plastics, masterbatch and recycled materials. It is widely used in high-capacity plastic granulation lines to provide customers with efficient, continuous and stable production guarantee.

Features

Product Overview

This machine is a high-capacity parallel twin screw extruder designed for large-scale plastic granulation production, specifically for continuous and high load industrial scenarios. The equipment is centered around excellent dispersion and mixing capabilities, precise temperature control systems, and stable high torque transmission, meeting the stringent requirements for efficient plastic granulation in fields such as engineering plastic modification, masterbatch preparation, and blending extrusion. It is an ideal choice for large-scale continuous production.

 

Core Features

·Ultra high production capacity design: adopting large free volume screw sleeves and high torque transmission system, the production capacity of the plastic granulation line is increased by more than 30% compared to conventional models, significantly reducing the single ton energy consumption and operating costs of the high production capacity plastic granulation line.
·Efficient screw combination: The modular screw components have optimized lead and self-cleaning thread profiles, which can achieve excellent dispersion and distribution mixing even at high speeds, ensuring that various fillers and additives are evenly distributed during the high-capacity twin screw extrusion process.
·Precision temperature control system: Multi zone cast aluminum heater combined with core shaft cooling technology, with a temperature control accuracy of ± 1 ℃, effectively avoiding material overheating and degradation at high speeds, ensuring long-term stable operation of high-capacity twin screw extruders.
·High torque gearbox: equipped with a dedicated high torque gearbox with forced lubrication and oil cooling system, it can withstand continuous high load operation, greatly improving the reliability and service life of twin screw extruders in plastic granulation production.
·Intelligent control: The PLC control system is combined with a remote monitoring module to achieve automated operation and real-time data tracing of the entire plastic granulation line, with convenient operation and high process stability.

 

Technical parameters

Model

Diameter
(mm)

L/D

Screw Speed
R/Min

Power
(KW)

Capacity
(kg/h)

KLWE-35D

35.6

44-52

400-600

37-50

90-160

KLWE-50D

50.5

44-52

400-600

90-120

180-300

KLWE-65D

62.4

48-60

400-600

132-175

400-700

KLWE-75D

71

52-64

400-600

220-300

700-1200

KLWE-95D

93

52-64

400-600

415-550

1500-3000

Noted: Details depend on your requirements and need.

 

Equipment advantages

By choosing the high-capacity parallel twin screw extruder from Nanjing Kelongwell Chemical Machinery Co., Ltd., you will gain comprehensive advantages specially designed for large-scale plastic granulation. Unlike traditional extruders, this machine not only increases production capacity, but also effectively controls the temperature rise of the melt through optimized screw components and cooling technology, avoiding the decrease in physical properties caused by shear overheating during high-capacity twin screw extrusion. Its modular barrel design supports multi-point lateral feeding, which can easily achieve high proportion filling of glass fiber and mineral fillers, ensuring that the high-capacity plastic granulation line maintains excellent product quality even under high-speed operation. At the same time, the equipment adopts high-strength wear-resistant alloy bushings, significantly extending the service life of key components, reducing maintenance costs, and providing solid guarantees for your continuous production.

 

Application Fields

This twin screw extruder can be widely used in the following high-capacity plastic granulation and modification fields:
·Engineering plastic modification: reinforcement, toughening, and flame retardant modification of materials such as PA6, PA66, PBT, PC/ABS, especially suitable for high glass fiber content filling.
·Preparation of masterbatch: Large scale plastic granulation production of high concentration carbon black masterbatch, white masterbatch, and functional masterbatch, requiring extremely high dispersibility.
·Recycling plastic granulation: High capacity recycling granulation of industrial recycled materials and post consumer plastics (PP, PE, PET) to achieve stable recycling and reuse.
·Reactive extrusion: Polymer grafting and chain extension reaction, used for preparing high value-added modified materials.
·Thermoplastic elastomers: mixing and high-capacity granulation of elastomers such as TPE and TPV.

 

Customized services

Nanjing Kelongwell Chemical Machinery Co., Ltd. provides comprehensive OEM/ODM customization services, tailored to your high-capacity twin screw extruder and plastic granulation line needs, to create exclusive solutions.
·OEM customization: Customize screw configuration, barrel length, lateral feeding port position, and downstream granulation equipment configuration based on specific material formulas and target production capacity.
·ODM whole line design: The complete plastic granulation line design and manufacturing from twin screw extruder to cooling water tank, granulator, and automatic packaging system, adapted to your factory layout and process requirements.
·Process support: Provide formula optimization, process debugging, and on-site start-up services to ensure that your twin screw extruder achieves design capacity in the shortest possible time.

 

Frequently Asked Questions (FAQ)

Q1: How to ensure material mixing uniformity at the highest output of a high-capacity twin screw extruder?
A: This machine adopts a combination of high torque gearbox and optimized screw components, which can maintain stable melt uniformity even when operating at high speeds above 1000 rpm. By using a precise temperature control system (± 1 ℃) and a unique arrangement of threaded components, uneven dispersion caused by increased production can be effectively avoided, ensuring consistent quality of particles produced by high-capacity plastic granulation lines.


Q2: What types of plastic pellets is this twin screw extruder suitable for?
A: This model has a wide range of applicability and can handle hygroscopic engineering plastics (such as nylon and PET), high filler masterbatch (with a filler content of up to 85%), fiberglass reinforced materials, and materials with strong abrasion resistance. The barrel can be made of wear-resistant and corrosion-resistant materials to meet the processing requirements of special materials such as PVC and chemical modification.


Q3: Can we customize a high-capacity plastic granulation line based on the existing workshop space?
A: Absolutely possible. Nanjing Kelongwell Chemical Machinery Co., Ltd. provides flexible ODM design, which can adjust the feeding height, barrel layout, screen changer direction, and downstream pelletizer and conveyor system layout of the twin screw extruder according to your workshop size, ensuring the optimal layout of the entire high-capacity plastic granulation line in a limited space.


Q4: What are the safety protection measures for equipment under overload or abnormal working conditions?
A: We have equipped the twin screw extruder with multiple safety protections: the screw shaft is equipped with a hydraulic safety nut, the melt pressure sensor is linked to the emergency stop, and the gearbox is equipped with an electronic torque limiter. When material blockage or torque exceeds the limit, the system automatically alarms and slows down or stops, effectively protecting the core components of the high-capacity twin screw extruder from damage.


Q5: How long does it usually take for a set of high-capacity twin screw extruders from order placement to delivery?
A: The delivery time for standard models of high-capacity twin screw extruders is generally 35-60 days. For ODM customized projects that include special screw configurations, automated integration, or complete plastic granulation lines, the delivery time needs to be confirmed according to the specific plan. We can provide urgent production scheduling services based on the urgency of customer expansion, and try our best to shorten the delivery cycle.

 

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