China best China High Torque Twin Screw Pelletizing Extruder Gear Box with high quality

Product Description

Polytek co-rotating twin-screw extruders are designed for maximum reliability, ease-of-use and flexibility. We offer turn-key solution for all types of material compounding applications.

we are proud to introduce our PTH series extruder which equiped with high torque and high speed gear box, desinged with specific torque of

12Nm/cm3 to achieve high screw filling rate, which results in a decrease of melt temperature, thus improving compound quality.

what is twin screw extruder 

Co-rotating twin-screw extruder : Due to the co-rotating twin-screw has the opposite speed at the meshing point, 1 screw pulls the material into the meshing gap, and the other screw pushes the material out of the gap, resulting in material from 1 screw turns to the other screw and advances in a “∞” shape. Since the gap of the meshing zone is small, the speed of the meshing screw and the groove are opposite in direction, so that the cutting speed is high, and the self-cleaning effect is good, that is, any accumulated material adhering to the screw can be scraped off, thereby The residence time of the material is very short, so the twin screw extruder is mainly used for compounding and pelletizing .

Polytek also have 2 stage extruder for PVC compound and high filler masterbatch extrusion.

Technical Data of PTH Extruder
 

Model Torque/Shaft(Nm) Screw Diameter(mm) Max.Screw Speed(RPM) Motor Power(Kw) Capacity(Kg)
PTH-20 40 22 600 5.5 15
PTH-25 110 25 900 22 90
PTH-35 320 36 900 75 280
PTH-50 890 51 900 200 800
PTH-65 1690 62 900 355 1400
PTH-75 2590 71 900 550 2200
PTH-96 5690 94 600 710 4000
PTH-135 7160 132 400 600 3500
PTH-165 14300 165 400 1200 5000

Construction :

The Applications of Co-rotating Twin Screw Extruder

1.Glass fiber reinforced, fuel barrier palletizing (For example PA6, PA66, PET, PBT, PP, and PC reinforced flame retardant)
2.Highly filled material granulation (For example PE, PP filled with 75%CaCo)
3.Granulation of heat-sensitive materials (For example PVC, XLPE cable material)
4.Intense color masterbatch (For example filled with 50% color powder)
5.Antistatic masterbatches, alloys, coloring, low-fill co-mingling granulation
6.Cable material granulation (For example sheathing material and insulation material)
7.XLPE pipe material granulation (For example masterbatches for hot water crosslinking)
8.Thermoset plastic compounding and extrusion (For example phenolic resin, epoxy resin, and powder coating)
9.Hot melt adhesive, PU reactive extrusion palletizing (For example EVA hot melt adhesive and polyurethane)
10.K resin, SBS de-volatile granulation
 

Spare parts and service, we are not only selling machine, but also our knowledge and service

Owe to rich theoretical knowledge and experience in compounding fifield, we can offer best solution to meet customer’s requirement, not only for local extruders. We can also provide standard parts of Coperion, Berstoff, JSW, Toshibar, Steer etc.

About Polytek
 

POLYTEK Intelligent Equipement Co., Ltd. is a committed in plastic extrusion and recycling technology R & D, to provide for customers compounding/plastic pipe/profile/sheet/board extrusion & waste plastic washing recycling machines, which will meet requirement of ISO 9001 and CE. With many patent technologies, we can provide customized solution for all kinds requirement, which will be stable, best performance, and competitive price .We have 3000m2 plant and over 30 employs, including a strong team of technical design and after sale service, which will insure the quick action to customer’s requirement.

Certification For PTH Extruders

More Equipment for various polymer compound

Air cooling conveyor Belt

twin screw extruder

Two stage extruder

Purchasing from CHINAMFG is only the beginning of our relationship. We are committed to the success of our customers

and we support you and your equipment throughout the life of your investment. We provide expertise with preventative

maintenance plans, health and wellness checks, and training services so that you can focus on what you do best: sell your product.

After-sales Service: 24 Hours on Call
Warranty: 12 Months
Type: Twin Screw Extruder for Compouding
Plastic Processed: PP PE Pet PC ABS TPR TPE TPU TPV PVC
Product Type: Granulating Extruder
Feeding Mode: Multiple Feed

plastic gearbox

Design Considerations for Plastic Gearboxes vs. Metal Gearboxes

Designing plastic gearboxes involves unique considerations compared to metal gearboxes:

  • Material Properties: Plastic materials have different mechanical properties than metals, affecting factors like strength, wear resistance, and temperature stability.
  • Load Distribution: Plastic gear teeth may have different load distribution characteristics, influencing gear profile design and tooth thickness.
  • Lubrication: Plastic materials may require specialized lubrication or self-lubricating additives to reduce friction and wear.
  • Clearances and Tolerances: Clearances between plastic gear teeth may differ from those in metal gears due to variations in thermal expansion and material properties.
  • Heat Dissipation: Plastics have lower heat conductivity than metals, requiring efficient heat dissipation designs to prevent overheating.
  • Noise and Vibration: Plastic gearboxes may produce different noise and vibration levels, necessitating damping measures or gear profile adjustments.
  • Environmental Factors: Plastic gearboxes may be more susceptible to degradation from UV exposure, chemicals, or moisture, influencing material selection and housing design.

Considering these factors ensures that the design of plastic gearboxes meets the specific requirements and challenges posed by the material, enhancing their overall performance and reliability.

plastic gearbox

Suitability of Plastic Gearboxes for Medical Equipment and Sterilization Requirements

Plastic gearboxes are increasingly being considered for medical equipment due to their unique characteristics that align with sterilization requirements. Here’s how plastic gearboxes are suitable for medical applications:

  • Chemical Resistance: Many plastics used in gearboxes are chemically resistant, making them suitable for exposure to various sterilization methods, such as autoclaving or chemical disinfection.
  • Non-Corrosive: Plastic gearboxes do not corrode or rust, which is crucial for maintaining the integrity and cleanliness of medical equipment during repeated sterilization cycles.
  • Weight and Compactness: Plastic gearboxes are lightweight and compact, making them ideal for portable and handheld medical devices that require easy maneuverability.
  • Design Flexibility: Plastic gearboxes can be designed with intricate shapes and features, allowing for integration into complex medical equipment designs.
  • Low Friction and Noise: Plastic gearboxes often exhibit low friction and noise levels, which is beneficial for medical devices that require smooth and quiet operation.
  • Ease of Cleaning: The smooth surfaces of plastic gearboxes are easy to clean and sterilize, reducing the risk of contamination.

Due to these advantages, plastic gearboxes can play a vital role in medical equipment that requires frequent sterilization, such as surgical tools, diagnostic devices, and patient monitoring equipment.

plastic gearbox

Impact of Plastic Material Choice on Gearbox Performance

The choice of plastic material plays a crucial role in determining the performance of a gearbox, affecting factors such as durability, strength, friction, and operating conditions:

  • Strength and Durability: Different plastic materials offer varying levels of strength and durability. High-performance engineering plastics, such as reinforced nylon, acetal, and PEEK, can provide excellent mechanical properties, allowing the gearbox to withstand higher loads and torque.
  • Friction and Wear: The coefficient of friction and wear resistance of plastic materials influence the efficiency and lifespan of the gearbox. Proper material selection can minimize friction, reduce wear, and extend the operational life of the gearbox.
  • Temperature and Chemical Resistance: The operating environment’s temperature and exposure to chemicals can affect plastic material performance. Choosing materials with suitable temperature and chemical resistance ensures the gearbox’s reliability and longevity.
  • Noise and Vibration: Certain plastic materials have inherent noise and vibration damping properties, contributing to quieter and smoother gearbox operation. These materials are beneficial in applications where noise reduction is important.
  • Weight: The density of the plastic material affects the gearbox’s weight. Lighter materials can lead to overall weight reduction in the system, which is desirable for applications requiring portability or reduced inertia.
  • Cost and Manufacturing: The cost of plastic materials varies based on their properties and availability. Additionally, different plastic materials may require specific manufacturing processes or tooling considerations.

Therefore, the careful selection of plastic materials is essential to ensure the desired gearbox performance, longevity, and efficiency for a specific application.

China best China High Torque Twin Screw Pelletizing Extruder Gear Box   with high quality China best China High Torque Twin Screw Pelletizing Extruder Gear Box   with high quality
editor by CX 2023-09-28