Integrated Assembly & High-Volume Plastic Manufacturing Solutions
High-Volume Plastic Manufacturing | Product Assembly | US–China Production Support
Precision Manufacturing at Scale
Haumann Group provides high-volume injection molding and custom product assembly for a wide range of industries, including startups, global brands, and established enterprises. Through every stage of production, from early stage prototypes to full-scale manufacturing we support OEM programs that require reliability, precision, and long-term scalability.
To support this growth, our dual-location manufacturing model offers local engineering and program support in Houston, USA, combined with cost-efficient mass production in Foshan, China. In addition, our German-engineered tooling and turnkey OEM manufacturing solutions help reduce risk while maintaining consistent quality at scale.
Equally important, our experienced engineering team works closely with customers to optimize designs, tooling strategies, and production processes. As a result, programs achieve strong repeatability, stable output, and smooth production ramp-ups. Whether refining an initial design or transitioning to high-volume production, Haumann provides the guidance and manufacturing discipline needed to move forward with confidence.
End-to-End OEM Manufacturing
- High-volume precision injection molding
- Automated product assembly at scale
- Dual-base manufacturing in USA & China
- German-engineered tooling for consistent quality
Haumann is a full-service OEM manufacturing partner supporting custom injection molding services, high-volume plastic parts manufacturing, and integrated assembly for production-focused OEM programs. Our capabilities include in-house tooling and mold fabrication, precision injection molding, CNC machining, secondary operations, and turnkey OEM manufacturing. Together, these services enable reliable, repeatable, and scalable production for global brands.
Our Manufacturing Capability Platform
Our manufacturing capability platform is built around integrated, production-ready processes that function as a single OEM system rather than disconnected services. This approach allows us to support custom injection molding, high-volume plastic manufacturing, and turnkey OEM programs with consistent quality and long-term reliability.
By combining in-house tooling, precision injection molding, CNC machining, and integrated assembly, we help OEM partners reduce supply-chain risk and move confidently from validated production to sustained mass manufacturing.
Core Manufacturing Capabilities
The following manufacturing capabilities are commonly applied across high-volume OEM production programs and scalable manufacturing partnerships:
Injection Molded Components
We provide high-volume injection molding for plastic parts manufacturing, supporting structural housings, functional components, and tight-tolerance parts. Our injection molding processes are engineered for repeatability, dimensional stability, and long-term production consistency.
Mass Production Plastic Parts
Our mass production plastic parts manufacturing is optimized for cycle-time efficiency, multi-cavity tooling, and consistent output. This capability supports OEMs that require reliable, high-volume production across domestic and global markets.
Tooling Engineering & Mold Fabrication
In-house mold design, tooling engineering, and mold fabrication are developed using DFM-driven processes. As a result, production risk is reduced while stable, repeatable injection molding performance is achieved from pilot builds through full production.
CNC Machining & Precision Processing
Precision CNC machining supports tooling components, molded-part interfaces, fixtures, and secondary machining operations. These capabilities ensure tight tolerances, accurate alignment, and consistent dimensional control throughout production.
Assembly & Integrated Manufacturing
Our assembly and integrated manufacturing services combine molded, machined, and secondary-processed components into production-ready sub-assemblies and finished OEM products. This integrated approach improves accountability and reduces supplier complexity.
Carbon Composite Components (Selective Applications)
Selective carbon composite manufacturing is used when lightweight performance, structural reinforcement, or material-specific advantages are required as part of an integrated OEM production strategy.
Footwear Injection Molding Components
We support precision injection molding for footwear components, including structural parts, overmolded assemblies, and engineered plastic components. These solutions are designed to meet the durability, fit, and performance requirements of high-performance footwear manufacturing.
Production & Assembly Services for Scalable Manufacturing
See how our custom manufacturing services empower brands to seamlessly scale from prototypes to mass production. With advanced injection molding capabilities, CNC machining, and global production facilities in both Houston, USA, and Foshan, China, we provide scalable and reliable solutions to ensure your products are ready for market.
The Haumann Advantage:
- Repeatable Precision – Injection molding processes engineered for dimensional stability and consistent quality.
- German-Engineered Tooling – Advanced mold design and process control to protect critical tolerances and part consistency.
- High-Volume Capacity – Multi-cavity tooling and stabilized cycle times for scalable production.
- Value-Added Assembly – Optional secondary operations for ready-to-ship OEM components.
End-to-End Manufacturing Capabilities
Automated Injection Molding & Assembly Line
✅ High-volume precision injection molding
✅ Automated product assembly at scale
✅ Dual-base manufacturing in USA & China
✅ German-engineered tooling for consistent quality
Injection Molding &Component Production:
✔️ Precision injection molding
✔️ Scalable mass production
✔️ Engineering-grade plastics
In-house Tooling &
Mold Engineering:
✔️Mold design & fabrication
✔️Rapid iteration
✔️German engineered tooling
Assembly & IntegratedManufacturing
✔️Product assembly
✔️Functional testing
✔️Pack-out ready delivery
Accurate by Design,Verified by CMM
✔️Precision machining
✔️Complex geometries
✔️Fast iteration & scaling
How Our Production Platform Works
At Haumann, we’ve developed a production platform that seamlessly integrates multiple capabilities, allowing us to reduce handoffs, minimize risks, and improve overall accountability. Our approach allows you to go from prototype to full-scale production with confidence.
Key Benefits of Our Integrated Approach:
Early Collaboration: Our engineering team works closely with yours from the beginning, ensuring tools, parts, and assembly processes are perfectly aligned.
Minimized Risk: Through streamlined feedback loops, we refine designs and production methods before moving to the next phase.
Faster Time-to-Market: By ensuring that each phase of the process is in sync, we reduce delays, helping you get your products to market faster.
Why OEM Partners Choose Haumann
We combine the best of both worlds by offering localized support in the USA and cost-efficient mass production in China. Our dual-base manufacturing model offers the perfect blend of high-quality products and scalable production.
Multi-Process Manufacturing: We integrate multiple manufacturing processes under one roof to optimize efficiency and reliability.
Engineering-Led Production: From design to production, our engineering team provides unmatched expertise in every step.
Dual-Base Support: With facilities in both the USA (Houston) and China, we offer global flexibility and scalable solutions.
Typical OEM Programs We Support
We work with leading brands across various industries, providing reliable solutions for product development and mass production.
Performance Footwear & Related Components: From initial design to market launch, we support high-performance footwear products.
Sports and Outdoor Products: Reliable and durable components for outdoor and sporting goods manufacturers.
Industrial & Mechanical Assemblies: Helping manufacturers transition from prototypes to full-scale production.
New Product Development & Production Ramp-Up Programs: Offering the expertise and resources you need to scale your product quickly and efficiently.
How It Works
We believe that clarity at every stage of production is essential. Here’s a breakdown of our process:
Concept Review & Manufacturing Feasibility: We analyze the product concept and ensure it’s feasible for mass production.
DFM & Tooling Strategy Alignment: We ensure that your design is optimized for manufacturability, cost-effectiveness, and functionality.
Prototyping, Validation, and Production: After building prototypes, we work with you to ensure each component meets the necessary standards before scaling to full production.
Production Ramp-Up: Once the product is validated, we handle the scaling process to ensure a smooth transition into full production.
Looking for an Integrated OEM Manufacturing Partner?
tart with a DFM review to help reduce risk and ensure your program is aligned for stable production.