Precision Assembly & Functional Testing Services

At Paramount Industrial, we go beyond machining by offering in-house mechanical assembly and precision testing services for customers who need ready-to-use components and subassemblies. By combining high-tolerance CNC machining with detailed final assembly and inspection, we help you streamline your supply chain, reduce handling and shipping risks, and improve quality at every step. From pump housings to engine brackets, we build assemblies that are fit-for-function, verified to spec, and production-ready.

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Design. Simulate. Manufacture.

đź“‹ Documentation & Traceability

Whether you supply the full BOM or we source the subcomponents, our team handles the final build and quality checks under one roof.

Custom build sheets

Work instruction follow-through

Lot traceability and part serialization (if required)

Pack-out to customer specifications

Our Assembly Services

Fully Machined. Fully Assembled. Ready to Install. We provide mechanical assembly and component integration for a variety of machined parts, castings, and engineered systems.
🔧 Mechanical Assembly

Subcomponent integration (brackets, hubs, pulleys, etc.)

Bushing installation

Press-fit operations

Fastening & torque application

Gasket placement & sealant application

Alignment & fixture-based assembly

Assembly validation via testing

🔩 Part Finishing & Prep

Deburring and final cleanup

Cleaning of mating surfaces

Visual quality checks

Greasing or oiling when specified

Packaging and labelling for end use

Pump Housings and Mounts

Engine Bracket Assemblies

Hub and Bearing Assemblies

Flex Plates with Inserts

Structural Frames and Support Plates

Pulley Subassemblies

Multi-Part Covers and Cases

Component Types Commonly Assembled

Each assembly is processed through climate-controlled machining and grinding departments before moving into final build and testing — minimizing thermal distortion and ensuring dimensional accuracy.

Functional Testing Capabilities

Every part must perform — so we don’t ship it unless it does. We offer tailored inspection and functional test procedures based on customer requirements, part function, and end use.
Testing Services Include:

Dimensional verification (RS-150 CMM, digital mics, height gauges)

Fitment and alignment testing

Seal & pressure checks (if required)

Visual and functional validation per drawing

Tolerance and surface condition confirmation

Customer-specific testing protocols

All inspection is performed in our ISO 9001:2015-certified facility with full documentation available.

Why Choose Paramount for Assembly & Testing?

Eliminate need for second vendors or rework

Reduce packaging/transport risks between operations

Save time by shipping completed assemblies — not parts

 Ensure dimensional, functional, and visual compliance

Speed up new program launches and pilot builds

Lower total cost of ownership with fewer touchpoints

Supported by our expert machinists, engineers, and inspectors

Integrated Machining + Assembly

Our machining tolerances of ±0.0005” and grinding tolerances of ±0.0006” are preserved throughout final build and testing, giving you complete control from billet to box. Because we machine, inspect, and assemble on-site, you benefit from:

Tighter scheduling and faster turnarounds

No tolerance loss between operations

Consistent inspection at each stage

Ready-to-ship, production-grade assemblies

Certifications & Shop Capabilities

All assembly and testing services operate under our company-wide ISO certification and lean production principles.

ISO 9001:2015 Registered

WBE (Women’s Business Enterprise) Certified

Climate-Controlled Shop

Custom Pack-Out & Logistics Support

Build Sheets, Work Instructions, & Inspection Reports Available

Let’s Build It — Together

If you’re looking for a machining partner who can deliver a complete part — built, inspected, and tested — Paramount Industrial is ready.

Travis Watson

Travis Watson is a results-driven business executive with a strong background in strategic growth, operational excellence, and servant leadership. He has led engineering and manufacturing teams across industries such as aerospace, clean energy, and high-performance vehicles, delivering significant improvements in performance, sales, and quality systems. With experience in roles ranging from Account Manager, Plant Manager to Director of Sales and Operations, Travis has overseen ERP implementations, contract negotiations, and cross-functional team development. His leadership has consistently driven efficiency, employee engagement, and profitability. Travis holds dual Bachelor of Science degrees in Marketing and Distribution Management from Indiana University’s Kelley School of Business. He is a Six Sigma Green Belt, CAPM certified, and holds a CPIM designation. Known for developing people and driving strategic execution, he has been a key contributor to multiple high-performing teams.

Joe Johnson

Joe is a highly accomplished engineering and business leader with decades of experience in mechanical engineering, manufacturing, aerospace, and business development. His career began at Delta Faucet Co., where he honed his skills before moving on to Cummins Engine Co. as a Fuel Systems Product Engineer. He further advanced his expertise as an afterburner specialist for Pratt & Whitney Aircraft.

As a seasoned entrepreneur, Joe co-founded ReGin Manufacturing, successfully growing the company into a $10 million enterprise before its acquisition. He later served as the Engineering Manager at Advance Aero Inc..

Recently, Joe transitioned from his role as Director of Operations at Paramount Industrial and Paramount Industries to become the Director of Business Development and Engineering. In this role he is focused on supporting strategic growth and leveraging his extensive background to drive innovation and success in the industry.

Joe Hetzer

Joe Hetzer brings over three decades of extensive experience in the manufacturing sector, with a specialized focus on the aerospace and automotive industries. Throughout his career, Joe has demonstrated a profound commitment to engineering and manufacturing excellence, making significant contributions to various projects and initiatives.

As a team builder, Joe employs a servant leadership approach, fostering an environment where collaboration and growth are paramount. His ability to inspire and empower teams has made him a respected leader in his field, driving innovation and operational improvements.
A recognized change agent, Joe is dedicated to maximizing productivity and efficiency within organizations. His strategic mindset and hands-on experience enable him to implement effective processes that not only enhance performance but also promote sustainability in manufacturing practices.

With a passion for developing talent and a keen eye for industry trends, Joe Hetzer continues to make a meaningful impact in the manufacturing landscape, ensuring that teams are well-equipped to meet the challenges of today and tomorrow.

Peter C. Ariens

Peter C. Ariens is the Chief Executive Officer of NuMA Group, Inc., a private holding company engaged in the automotive, aerospace, defense, recreational, and heavy-duty industries. Under his leadership, NuMA encompasses several companies that manufacture and distribute critical components for some of the world's largest enterprises, with four manufacturing facilities located in Indiana.Before his role at NuMA Group, Peter served as President of Stens Corporation for 18 years, where he led the international parts manufacturing and distribution company until its acquisition by private equity in 2016.In addition to his executive role at NuMA, Peter actively contributes to various for-profit and non-profit boards, including:Two Ladders, Tell City, Indiana
South Central Inc., Evansville, Indiana
Toolsey, Inc., Indianapolis
He is also a member of professional organizations such as Vistage International and the Alliance of Indiana, affiliated with the IU Kelley School of Business. Previously, Peter held the position of Treasurer on the Trieste board.

Shelia Rossmann

Shelia Rossmann is the Owner and President of Paramount Industries, Inc. and Paramount Industrial, Inc., where she has established herself as an accomplished and results-oriented businesswoman in the manufacturing sector. As a Senior Manufacturing Executive, Shelia leads her woman-owned businesses with a commitment to excellence and innovation.
Her remarkable achievements in the industry were recognized when she won the prestigious Entrepreneur of the Year award in 2013 for Manufacturing in Michigan and North West Ohio, presented by Ernst & Young. This accolade highlights her dedication to driving growth and operational success in her companies, making significant contributions to the manufacturing landscape.
Shelia’s leadership continues to inspire others in the industry, showcasing the impact of women in business and the importance of resilience and strategic vision in achieving success.