SZ SUNLIT INDUSTRIAL SOLUTIONS
Precision Engineered Components
Precision-engineered pelletizing knives and magnetic drive pumps for demanding polymer processing and fluid handling applications.
Two Specialized Engineering Solutions
SZSUNLIT develops precision-engineered solutions across two specialized fields — polymer pelletizing and precision fluid handling.
Pelletizing Solutions
Precision components engineered for consistent cutting, wear resistance and reliable pelletizing performance.
Magnetic Drive Pump Solutions
Sealless fluid handling solutions engineered for precise flow, demanding pressure and specialized operating conditions.
Solutions for Every Application
From polymer pelletizing to precision fluid transfer, our technologies deliver performance, reliability and value in demanding industrial applications.
Proven Performance
Real-world performance backed by application results and engineering data.
PP Compounding Tool Life
Extended from 3 months to 12+ months.
50% Glass Fiber Reinforced PA66
Tool life increased by up to 20×.
High-Purity PET Production
Ceramic bedknives eliminate metallic contamination from the cutting edge.
Long Service Life
Magnetic drive pumps engineered for long-term continuous operation.
Pro Series Pressure Capability
Working pressure differential up to 40 Bar, with system pressure up to 50 Bar.
Leak-Free Fluid Handling
No dynamic shaft seal for reliable fluid handling under recommended operating conditions.
Pelletizing Knives Engineered for
Demanding Polymer Processing
Precision-manufactured pelletizing knives for underwater, water-ring and strand pelletizing systems—designed for extended tool life and consistent cutting performance.
Stationary Bedknives
High precision, long life
Rotor Blades
Smooth cutting, low wear
Water Ring Blades
For underwater pelletizing
Engineered for OEM Replacement
& Extended Tool Life
OEM-Compatible Geometry
Replacement solutions for MAAG®, BKG® and other pelletizing systems with drop-in compatibility.
Material-Specific Solutions
Ceramic, carbide and wear-resistant materials selected for different polymers and operating conditions.
Precision Manufacturing
Tight dimensional control and strict tolerances for reliable installation and consistent cutting performance.
Application-Proven Performance
Solutions validated in PP compounding, glass-fiber-reinforced polymers and high-purity PET production.
Mini Magnetic Drive Pumps Engineered for Precision Fluid Handling
Sealless magnetic drive gear pumps engineered for precise, reliable fluid transfer across chemical processing, thermal management, battery manufacturing and specialized equipment.
Sealless Magnetic Drive
Static sealing design eliminates dynamic shaft seals for reliable leak-free fluid handling.
High-Pressure Capability
Pro Series supports working pressure differential up to 40 Bar, with customized system pressure configurations up to 50 Bar.
Wide Operating Temperature
Pro Series standard operating range from −80°C to +140°C, with specialized configurations available for more demanding conditions.
Long Service Life
Engineered for long-term continuous operation, with 20,000+ hours service life under suitable operating conditions.
Applications
- Chemical dosing and corrosive fluid transfer
- Laboratory and analytical instrument fluid circuits
- Precision fluid handling in semiconductor and coating equipment
- High-pressure or high-viscosity fluid systems requiring leak-free operation
- New energy battery manufacturing: separator coating and precursor metering systems
- Cooling systems for radar, servers and EV fast-charging stations
- Aerospace cooling and thermal circulation systems
PRO SERIES
High Pressure · Wide Temperature
Demanding Applications
LITE SERIES
Compact · Cost-Effective
General Fluid Handling
Engineering Capabilities That Support Your Application
OEM Replacement Expertise
We develop OEM-compatible pelletizing knife solutions for MAAG®, BKG® and other major systems, while our magnetic drive pumps are engineered for demanding precision fluid-handling applications.
Precision Manufacturing & Inspection
Critical dimensions are controlled through precision machining and 100% inspection. From pelletizing knives to pump components, each key dimension is verified before shipment to ensure consistent fit, accuracy and performance.
Application Engineering
We help customers optimize pelletizing and fluid handling systems through application-driven engineering. From component selection to customized solutions, we support every project with practical industry experience.
Proven in Industrial Production
Our pelletizing knives and magnetic drive pumps are in active use across major industrial facilities in China — including polymer compounders, petrochemical processors, engineering plastics manufacturers, and precision equipment makers. Our products have earned recognition from some of China’s largest industrial groups through consistent performance in demanding production environments.
Our goal is not to offer the widest range of products, but to deliver dependable components that can integrate smoothly into existing industrial systems.
Let’s Discuss Your Application Needs
If you are looking for polymer pelletizing knives or mini magnetic drive pumps that prioritize stability, compatibility, and long-term value, we welcome a technical discussion with you.
MAAG® and BKG® are registered trademarks of their respective owners.
Reference to these trademarks is for identification purposes only and does not imply any affiliation or endorsement.
