Precision OEM Assembly Services & Integrated Manufacturing Solutions

Precision OEM Assembly Services | Integrated Manufacturing & Fulfillment | USA–China Production Scale

Integrated OEM Assembly for Scalable Production Programs

At HAUMANN Group, our Precision OEM Assembly Services are designed for brands and manufacturers that require more than basic product assembly. We deliver integrated manufacturing solutions that transform injection-molded components, CNC-machined parts, and sourced materials into fully assembled, quality-verified products ready for distribution.

With engineering oversight from our German-led team and operational strength in Houston, USA and Foshan, China, we provide scalable assembly programs built for high-volume production and long-term OEM partnerships.

From manual precision fitting and ultrasonic welding to robotic-assisted assembly and final quality assurance (FQA) testing, every process is controlled under unified quality standards. Our integrated approach reduces supply chain complexity, shortens lead times, and ensures consistent product performance across global markets.

Whether you are launching a new product, scaling production, or consolidating multiple suppliers into one trusted partner, HAUMANN delivers assembly solutions engineered for reliability, efficiency, and production growth. Our quality systems align with internationally recognized standards such as ISO 9001 quality management guidelines.

Precision OEM Assembly Built for Scale:

Assembly Capabilities

Our Precision OEM Assembly Services are engineered to support functional integration, dimensional accuracy, and scalable production programs. We assemble complex multi-component products under controlled processes designed for repeatability, durability, and performance consistency. Assembly validation procedures follow industry best practices outlined by ASTM International.

Assembly services include:

Mechanical assembly of multi-component plastic and hybrid parts
Integration of injection molded, CNC machined, and sourced components
Ultrasonic welding, fastening, bonding, and fixture-based joining
Functional sub-assemblies and complete product builds
Custom kitting, labeling, and packaging for retail or industrial delivery
Low-to-high volume production with structured ramp-up support

Integrated Manufacturing Approach

At HAUMANN Group, assembly is not treated as a standalone operation. It is engineered as part of a fully integrated OEM manufacturing system.

By aligning tooling, molding, machining, and assembly from the earliest development stages, we reduce production risk and ensure seamless scalability.

Early assembly input during DFM and tooling design
Alignment between part tolerances and final assembly requirements
Reduced rework and improved first-pass yield
Coordinated workflow from component production to finished assemblies
Unified quality standards across USA and China facilities

This integrated structure allows customers to consolidate suppliers, shorten lead times, and maintain consistent quality across global production programs.

Process Control & Quality Assurance

Consistent assembly output requires disciplined process control. Our assembly operations follow defined work instructions, inspection protocols, and traceability systems aligned with OEM quality expectations.

Process controls include:

Standardized work instructions and validated assembly sequences
Fixture and jig support to ensure repeatable precision
In-process inspection and final quality verification (FQA)
Functional and cosmetic testing based on product requirements
Traceability aligned with customer compliance standards
Closed feedback loops to tooling, machining, and molding teams

With USA-based project oversight and global production execution, HAUMANN ensures every assembled unit meets defined performance, fit, and durability standards.

End-to-End Precision OEM Assembly Services

Our assembly operations are designed to bridge component manufacturing and finished product delivery under one controlled system. By integrating injection molding, CNC machining, and precision assembly into a unified workflow, HAUMANN ensures repeatable output, reduced production risk, and scalable OEM manufacturing performance.

From sub-assembly integration to fully packaged product builds, we support programs ranging from new product launches to high-volume global production.

The Haumann Advantage:

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

Consumer Product Assembly Build:

✔️Precision snap-fit parts

✔️Multi-piece assembly control

✔️Retail-ready finish

Rugged Case System Assembly:

✔️Structural component integration

✔️Fastening & fixture support

✔️Pack-out ready builds

Exploded Light Housing Assembly:

✔️Multi-part fit & alignment

✔️Electronics integration ready

✔️Clean cosmetic finish

Appliance Sub-Assembly Integration:

✔️Tubing & component routing

✔️Secure joining points

✔️Repeatable assembly flow

Role in OEM Production Programs

Integrated assembly at HAUMANN Group enables OEMs to consolidate multiple production stages under one controlled manufacturing partner. By aligning tooling, molding, machining, and final assembly within a unified system, we reduce operational complexity and improve program stability.

This integrated structure:

Simplifies multi-vendor management
Reduces handoff risk between production stages
Improves accountability and engineering communication
Accelerates overall production timelines
Enhances cost visibility and scalability

How It Works

Our assembly programs follow a structured engineering-driven workflow to ensure stable production and repeatable output.
- Assembly feasibility review during DFM and tooling stages
- Alignment between molding, machining, and assembly tolerances
- Pilot builds and process validation before volume ramp-up
- Controlled production release with documented work instructions
- Ongoing monitoring, feedback loops, and yield optimization
This process ensures smooth transition from prototype to scalable OEM production.

Why OEM Partners Choose HAUMANN for Precision OEM Assembly Services

HAUMANN is not a standalone assembly shop — we are an integrated manufacturing partner built for long-term OEM programs.

Deep integration across tooling, injection molding, CNC machining, and composites
Engineering-led assembly planning for risk mitigation
Focus on repeatability, traceability, and production stability
Structured ramp-up support for high-volume programs
Dual-base manufacturing strength (USA + China) with unified quality standards

Our USA-led oversight combined with global production scale provides flexibility without sacrificing control.

Internal Capability

Our internal capabilities allow us to manage complex OEM programs under one system, reducing supply chain fragmentation.

This vertical integration improves lead times, cost efficiency, and quality consistency.

Looking for a Single Partner to Deliver Complete Assemblies?

Consolidate your production stages with HAUMANN’s Precision OEM Assembly & Integrated Manufacturing Solutions. From component production to final packaged assemblies, we deliver scalable programs engineered for reliability and growth.