Advanced Plastics Manufacturing & Multi-Process Capability
Roncelli Technologies delivers world-class plastics manufacturing and material solutions for mission-critical applications. From design support through production, we align the latest manufacturing technologies with stringent industry requirements to deliver precision components you can trust across aerospace, semiconductor, medical, defense, and space applications.
High-Performance Polymer Engineering
Precision Plastics at Production Scale
End-to-End Plastic Manufacturing
Comprehensive Plastics Capability Overview
Roncelli’s plastics division blends engineering expertise with advanced manufacturing processes to support each stage of the product lifecycle — from prototyping and material selection to high-precision production and assembly.
CNC Machining
Roncelli Technologies delivers precision CNC machining for engineered plastics requiring tight tolerances, repeatability, and exceptional surface finishes. Our machining capability supports both prototype development and high-volume production across complex geometries and demanding performance specifications.
We machine a wide range of high-performance polymers and composites, including PEEK, Ultem®, Torlon®, PTFE, PPS, PCTFE, Delrin®, PPSU, and glass- or carbon-reinforced compounds. Multi-axis CNC equipment enables intricate part features, tight concentricity, and high-precision surface control for critical functional interfaces.
Our machining processes are optimized for polymer-specific challenges such as thermal expansion, tool wear, and dimensional stability, ensuring consistent quality from first article through production runs.
Key CNC Machining Advantages
Tight-tolerance machining down to ±0.0001″
3-axis and 5-axis milling, turning, and Swiss machining
Large-format machining up to 30″ × 60″ envelopes
Common CNC-Machined Plastic Components
- Structural brackets and housings
- Precision bushings and bearings
- Seals, wear pads, and insulators
- Fixtures, tooling, and test components
CNC machining is ideal for industries requiring high precision and traceability, including aerospace, semiconductor equipment, medical devices, and defense systems.
Injection Molding
Roncelli’s injection molding capability provides scalable manufacturing for complex plastic parts requiring repeatability, dimensional accuracy, and consistent material performance. From low-volume pilot runs to high-volume production, our molding processes support intricate part geometries and tight functional tolerances.
Our team supports the full molding lifecycle including material selection, mold design optimization, process development, and quality validation. We work with engineering-grade thermoplastics and specialty polymers designed for high-temperature, structural, chemical-resistant, or electrically insulating applications.
Injection molding enables cost-effective manufacturing for production programs requiring consistent quality and long-term supply continuity.
Injection Molding Advantages
Design-for-manufacturing (DFM) engineering support
High repeatability for critical production programs
Multi-cavity tooling and automated production capability
Typical Injection-Molded Applications
- Enclosures and housings
- Structural connectors and brackets
- Precision clips and mechanical interfaces
- Medical device components
Injection molding is commonly used for aerospace interior components, medical assemblies, electronic enclosures, and industrial system parts requiring consistent quality at scale.
Welding & Assembly
Roncelli provides integrated welding and assembly services to transform individual machined or molded components into complete functional systems. Our assembly capabilities reduce supply chain complexity while ensuring dimensional alignment, structural integrity, and performance consistency.
Plastic welding processes allow permanent joining of thermoplastic components without mechanical fasteners, improving strength, sealing performance, and chemical resistance. Our technicians select the optimal joining method based on material type, geometry, and application requirements.
Assembly operations are supported by documented processes, custom fixturing, and inspection checkpoints to ensure repeatable quality across production runs.
Welding & Assembly Capabilities
Thermoplastic welding including hot gas, extrusion, and ultrasonic methods
Mechanical fastening, bonding, and hybrid joining solutions
Subassembly integration and final system build-out
Typical Assembly Applications
- Multi-part housings and enclosures
- Fluid system manifolds and welded tanks
- Structural frames and brackets
- Integrated functional modules
Welding and assembly services are especially valuable for semiconductor equipment, chemical processing components, aerospace assemblies, and medical device systems where precision alignment and leak-free performance are critical.
3D Printing (Additive Manufacturing)
Roncelli’s additive manufacturing capability accelerates design validation, prototyping, and low-volume production through high-precision 3D printing of engineering-grade materials. Our Rapid Production Manufacturing (RPM) cell supports fast turnaround times without sacrificing dimensional accuracy or functional performance.
3D printing enables complex internal geometries, lightweight structures, and rapid iteration without tooling investment. We support production-grade additive materials suitable for functional testing, structural evaluation, and limited-run manufacturing.
This capability bridges the gap between concept development and full-scale manufacturing, enabling faster innovation and reduced time-to-market.
3D Printing Capabilities
Fused Deposition Modeling (FDM) for engineered polymers
High-temperature materials such as Ultem® and Polycarbonate
Rapid turnaround — parts delivered in as little as 2 days
Common Additive Manufacturing Applications
- Functional prototypes and concept validation
- Jigs, fixtures, and tooling aids
- Low-volume production components
- Design verification models
Additive manufacturing is widely used in aerospace, medical, semiconductor, and industrial engineering workflows where rapid iteration and cost-efficient development are essential.
Industry Integration & Application Support
Roncelli’s plastics capability is deeply integrated with industries that demand reliability, precision, and compliance, including:
Aerospace & Defense
Space Systems
Semiconductor Capital Equipment
Medical & Life Sciences
Our teams understand each industry’s unique performance requirements — from cleanroom assembly for semiconductors to certified quality for medical devices.
Quality & Certifications
Precision manufacturing requires world-class quality systems. Roncelli maintains multiple certifications including:
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AS9100 Registered
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ISO 13485 Registered
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ISO 9001 Registered
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ISO27001 Registered
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ITAR/DDTC Registered
Compliance with NIST 800-171 and DFARS enhances our ability to support high-security programs.
Start Your Plastics Manufacturing Program
Whether you’re developing a prototype, optimizing a production design, or scaling a mission-critical manufacturing program, Roncelli provides the expertise and capability to deliver results.