USA, HOUSTON-BASED ENGINEERING WITH CHINA MANUFACTURING SCALE
Custom Injection Molding Services for High-Volume Plastic Parts

From DFM and tooling to high-volume injection molding and assembly, Haumann Group helps OEMs reduce production risk, improve quality, and scale plastic parts manufacturing—led by our Houston-based engineering team.

  • Houston-based communication & project management.

  • German-engineered tooling for tight tolerances and repeatability.

  • Scalable production from samples to mass production.

Certified Quality Systems for Production Ready Manufacturing

Global Production

USA First Production with Global Scalability: Houston supports responsive engineering, CNC, and local project leadership while Foshan enables cost-efficient capacity for high-volume injection molding and mass production plastic parts when needed.

Engineered Quality

German-Engineered Tooling + Unified QC: We build repeatable tooling and validate output with CMM, 3D scanning, and first-article inspection so your injection molded components meet spec from pilot runs to full production.

Complete Manufacturing

One Partner for OEM Plastic Parts Manufacturing: End-to-end workflow: DFM → Design → CNC → Tooling → Molding → Volume Production → Assembly. Reduce supplier handoffs, shorten ramp-up time, and protect part quality at scale.

Why Choose Haumann for your Manufacturing?

USA, Houston + China, Foshan Dual Production

Work with a Houston-based team for fast communication, engineering alignment, and predictable execution. When programs scale, our global capacity supports efficient plastic parts manufacturing with one quality standard and one accountable partner.

  • U.S.-based project ownership from start to production

  • Scalable output for high-volume injection molding program

What Sets Us Apart

German Engineering + Precision Tooling

Our team designs tooling and molding processes to reduce risk early improving accuracy, stability, and cycle performance for custom injection molding services and high-volume production.

Precision Injection Molded Components

From micro features to larger housings, we deliver consistent results across complex geometries, tight tolerances, and engineering-grade materials.

Houston-Based Communication

Get quick responses, clear updates, and engineering-to-engineering communication especially valuable for U.S. OEM teams managing timelines and quality.

Contract Manufacturing for Plastic Parts

We manage the full path from design review through tooling, molding, and assembly reducing supplier complexity and improving on-time production.

Our Capabilities

Injection Molding Solutions

High-volume quick-turn molding delivered from U.S. and China sites.

Expert molding with engineering-grade high-temperature materials.

Scientific molding and automation ensure consistent production quality.

Scalable production from 

samples to millions of parts.

Tooling & Mold Solutions
LED composite manufacturing solutions

German-engineered tool and mold design for tight tolerances.

Multi-cavity, insert, and overmold tooling for complex plastic parts.

Complete mold repair, refurbishment, and preventive maintenance services.

Fast tooling programs with local and global manufacturing support.

DFM & Engineering Solutions

Design for manufacturability reviews to reduce cost and production risk.

Detailed tolerance and stack-up analysis for critical plastic components.

Material and resin selection support based on performance requirements.

Gate, flow, and cooling analysis to optimize cycle time and quality.

Prototyping & Sampling Solutions

Functional prototype parts for early design and fit evaluation.

Pre-production sample runs for mold and manufacturing verification.

Rapid iteration cycles to refine part design before full tooling.

Consistent sample testing to confirm production-ready performance.

Advanced Manufacturing Operations

See how our custom injection molding services transition from precision tooling to high-volume production. With Houston-based engineering and scalable manufacturing infrastructure, we deliver consistent, production-ready plastic parts for global OEM programs.

The Haumann Advantage:

Featured Products:

Automotive injection molded plastic component manufactured for OEM high-volume production
Automotive Plastic Components

|Automotive

Functional Plastic Component

|Marine

OEM plastic injection molding by industry using high-volume manufacturing equipment
Footwear Plastic Components

|Footwear

Precision injection molded plastic housing for home appliance and consumer product assemblies
Home Appliance Plastic Housings

|Housings

Extended Capability

Carbon Composite

Lightweight carbon composite parts that complement our injection molding programs ideal for sports products and performance components where stiffness-to-weight matters.

Assembly & Manufacturing

Turnkey assembly for ready-to-ship products, including functional checks, quality validation, and packaging so you can reduce vendors and accelerate launches.

Quality Assurance for High-Accuracy Production

Measurement and inspection built into our process to protect dimensional accuracy and batch-to-batch consistency.

CMM Measurement for High Accuracy

3D Dimensional Scanning

Verify full geometry on complex surfaces and tight tolerance features to confirm parts match CAD.

CMM Quality Measurement

First Article
Inspection

Confirm critical dimensions before production begins aligning tooling output to your engineering requirements.

Precision Measurement Control

Repeatable probing and reporting for high-precision programs ideal for automotive and performance components.

INSIGHTFUL

What’s New at Haumann

Insights on injection molding, tooling, and OEM manufacturing plus project updates from Houston.

1758+
Trusted for Custom Injection Molding Services Built for Scale in the USA

Precision tooling, reliable production, and end-to-end manufacturing support backed by certified systems and proven engineering.

IATF 16949

Certified
Customers
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Patents
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High-Volume Injection Molding for OEM Production Programs

If you’re ramping to volume, we help stabilize tooling, reduce scrap, and protect critical dimensions so your team can hit production targets with confidence.

  • Multi-cavity tooling and repeatable cycle control

  • Tight tolerance validation with inspection reporting

  • Secondary operations and assembly available

  • Houston-led project management

Avoid Costly Tooling & Production Mistakes

Share your part design for an engineering feasibility review focused on manufacturability, risk reduction, and cost-saving opportunities.

Industries We Support

We manufacture injection molded components for OEMs in high-demand markets—especially where quality and repeatability matter.

Priority order for tiles:

  1. Sports & Outdoor Products ( “performance components” / wakeboarding)

  2. Home Appliances & Lifestyle

  3. Automotive Components
    Then the rest.

Home & Lifestyle Products
High-quality plastic parts that enhance everyday living with style and functionality.
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Sports & Outdoor Equipment
Precision-molded components built for durability, performance, and extreme conditions.
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Automotive Accessories
Reliable, engineering-grade components designed for strength, safety, and long term use.
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Consumer Products
Custom-molded solutions for brands needing consistent quality, fast production, and modern designs.
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Industrial Components
Performance driven parts engineered to handle heavy duty use and demanding environments.
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Electronics & Smart Devices
Tight-tolerance components ideal for compact assemblies, smart gadgets, and electronic housings.
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Medical (Non Critical Plastic Parts)
Clean, consistent, and safe plastic molding for non-critical medical and laboratory applications.
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Startups & New Product Launches
Rapid prototyping to full-scale production—helping innovators bring new ideas to market faster.
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Trusted by Global Innovators

Experience supporting global OEM programs brands shown where permitted.

NISSAN
BOS
BMW LOGO
PORSCHE
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