Precision Plastic Molding Solutions
High-performance Injection & Extrusion Screw Barrels, Shut Off Nozzles, and Industrial Spare Parts engineered for durability and efficiency.
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High-performance Injection & Extrusion Screw Barrels, Shut Off Nozzles, and Industrial Spare Parts engineered for durability and efficiency.
Ningbo Rootier Industry and Trade Co., Ltd. is dedicated to delivering advanced system solutions for the global plastic processing industry. We specialize in high-end components such as Shut Off Nozzles, Plasticizing Screw Barrels, Tip Assemblies, and Injection Tie Bars.
With extensive ready stock of commonly used machine parts, we ensure fast delivery and reliable support for OEMs and manufacturers worldwide. Our commitment to innovation, quality control, and customer service has positioned us as a trusted partner across diverse industrial sectors.
Engineered for performance, longevity, and precision — our comprehensive lineup serves injection molding, extrusion, and industrial plastic processing needs.
High-speed plasticizing units for injection molding machines. Available in various diameters (12–250mm) and materials.
Single and twin-screw systems for extrusion equipment. Designed for high wear resistance and thermal stability.
T-200 Fe-Based and T-300 Ni-Based bimetallic barrels ideal for general-purpose processing below 40% glass fiber content.
Spring-type piston shut-off nozzles prevent drooling and ensure precise material control during injection cycles.
R-600 Series screws with Physical Vapor Deposition coating for extreme wear and corrosion resistance.
Heat-resistant torpedo tips for optimal melt homogenization and pressure distribution.
Precision-engineered for co-rotating conical twin-screw extruders used in compounding and recycling.
Durable tie bars and stainless steel mica band heaters for stable clamping and heating performance.
Engineered for extreme conditions and long service life
Our T-series bimetallic barrels (T-200, T-300, T-400) offer superior wear resistance, especially in abrasive or corrosive environments. Ideal for processing filled polymers and recycled materials.
R-400 Series screws made from high-alloy powder metallurgical steel provide exceptional hardness and uniform microstructure for maximum durability.
R-500 (HVOF) and R-600 (PVD) coated screws deliver extreme surface hardness and corrosion resistance, extending component life in aggressive processing conditions.
T-100 Nitrided Barrels and R-100 Series Screws offer cost-effective performance enhancement with improved surface hardness and fatigue resistance.
R-300 Series fully hardened screws are ideal for high-pressure applications requiring dimensional stability and resistance to deformation.
We support OEMs with custom screw designs, material selection, and performance optimization based on specific resin types and processing parameters.
We offer T-200 (Fe-based), T-300 (Ni-based), and T-400 (High Tungsten) bimetallic barrels, each tailored for different wear and corrosion resistance requirements.
Yes, we offer full customization including geometry, material selection, and surface treatments based on your processing needs and resin types.
PVD (Physical Vapor Deposition) coatings like TiN and CrN significantly increase surface hardness and reduce friction, improving wear life and melt flow.
Spring-type piston shut-off nozzles prevent drooling, ensure precise shot control, and reduce material waste during the injection cycle.
Our components are used in automotive, packaging, electronics, medical devices, and recycling industries where high-performance plastic processing is critical.
For product inquiries, technical support, or custom solutions, visit our official website to connect with our team.
No.11, Xiangzhou Xiaozhu, Gaoxin, Ningbo, China
+86-574-87011824
info@rootier.cn
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