PVC Twin Screw Extruder Saving High Speed Twin Screw Laboratory Plastic Extruder

• Customization: Available
• After-sales Service: a Lifetime of Service
• Warranty: 1 Years
• Model NO.: XH-433-25
• Raw Material: PVC
• Screw: Double-Screw
• Inverter: Inverter
• Electromagnetic Heater: Electromagnetic Heater
• Automation: Automatic
• Computerized: Computerized
• Customized: Non-Customized
• Certification: CE, ISO9001:2008
• Condition: New
• Applicable Materials: PVC
• Screw Diameters: 25mm
• Screw Speed: 0 - 300rpm
• Screw L/D Ratio: 30:1
• Output: 1 - 10kg/H (Decide by Formula)
• Cooling Device: Air/Water Cooling
• Cutting Device: Granulator
• Power Supply: 380V/50Hz/3 Phases or Customerized
• Control Mode: Siemens Touching Screen PLC Control
• Transport Package: Wooden Case
• Specification: 2300*650*1750mm
• Trademark: Xihua
• Origin: China
• Package Size: 235.00cm * 70.00cm * 180.00cm
• Package Gross Weight: 700.000kg

Product Description

Laboratory-Scale PVC Counter-Rotating Twin-Screw Extruder

The laboratory-scale PVC counter-rotating twin-screw extruder is a precision-engineered machine designed for research, development, and small-batch production of polyvinyl chloride (PVC) compounds. Its key feature is the counter-rotating screw configuration (where the two screws rotate in opposite directions), which ensures excellent mixing, controlled shear, and efficient thermal processing—critical for handling heat-sensitive PVC materials.

Specification

Applications

PVC Formulation Development:

Testing stabilizers, plasticizers, fillers (e.g., CaCO3, TiO2) for improved properties.

Process Optimization:

Studying effects of screw speed, temperature profile, and shear rate on PVC melt quality.

Prototype Production:

Manufacturing experimental PVC sheets, pipes, cables, or profiles for performance validation.

Key Configurations

Counter-Rotating Screws:

The screws rotate in opposite directions (typically inward), providing strong shear and positive conveying, reducing material stagnation, and preventing PVC degradation.
Precision Temperature Control:

Multi-zone PID-controlled heating (barrel, screws, die) ensures uniform thermal processing, crucial for PVC (decomposition starts above ~200°C).
Modular Screw Design:

Interchangeable screw elements (kneading blocks, conveying elements, mixing sections) allow customization for different PVC formulations (rigid/flexible PVC).
Lab-Scale Processing:

Throughput: 0.5–10 kg/h, ideal for R&D trials, formulation testing, and pilot production.
Advanced Monitoring:

Optional real-time sensors (melt pressure, torque, temperature) for process optimization.

right elevation

left elevation

front elevation

Technical Specifications

(Custom configurations available upon request.)

Model	XH-433-25
Screw diameter	Ø25mm or customized
L/D	30:1
Screw rotation direction	counter rotation
Heating mode	electric heating, cast aluminum heater, max temperature is 300℃
Output shaft speed	MAX300 rpm
Control system	Germany Siemens PLC (using Siemens touch screen, control the work state, data acquisition, processing, etc. Full automation of process control)
Output	Around 0.5~10kg/H
Power Supply	3∮, AC380V, 50HZ

Advantages & Challenges

1.Superior Mixing: Ensures uniform dispersion of additives in PVC.
2.Low Thermal Degradation: Controlled shear minimizes overheating risks.
3.Flexibility: Quick screw/parameter changes for diverse experiments.

After Sales Service

Standard Warranty: 12 months or 2,000 operating hours (whichever comes first).
Extended Warranty: Optional coverage up to 36 months.
Global Support: 24/7 technical assistance and spare parts supply.
Training: On-site or remote operation/maintenance training.

Company Profile

Guangdong Xihua Machinery Co.,Ltd

Guangdong Xihua Machinery Co., Ltd. is a research and development, manufacturing, sales, service in one of the laboratory equipment high-tech enterprises. Products are widely used in plastics, rubber, silicone, petrochemical, wire and cable, environmental protection, new energy, medical, automotive and other industries. Has a number of domestic advanced fully automated production equipment, with a trial production testing laboratory in line with national standards, equipped with advanced testing and analysis instruments.
Xihua has been working closely with many top 500 enterprises, well-known domestic enterprises and scientific research institutions for many years, and the international market covers Russia, Germany, Australia, the United States, Canada and Mexico. Brazil, India, Saudi Arabia, Singapore, Malaysia, South Korea, Thailand, Turkey, Philippines, Vietnam, etc.

Why Choose Us?

Other Products

OEM/ODM capabilities
Competitive pricing & bulk discounts
Fast shipping & customs clearance support
Turnkey project solutions

Lab two roll mill
Plate vulcanizing press
Lab casting film machine
Lab blown film machine
Filter testing machine(FPV)
Injection molding machine

FAQ

Q: What’s the lead time for orders?
A: Standard models ship in 15–30 days; customized units require 30–45 days.

Q: Do you provide after-sales service overseas?
A: Yes, we have partnered service centers in key regions.

Q: Can I request a customized bucket size?
A: Absolutely! We offer tailored attachments.

Q: What documents do you provide for export?
A: Full export package (Commercial Invoice, Packing List, Bill of Lading, COC, etc.).

Q: How do I place an order?
A: Contact us via email/phone for a quote, then confirm with a PO.