Electromechanical Assembly

Wire Harness Assembly

High-quality, long-lasting wire harness assembly and custom cabling is performed in-house. Additional, comprehensive electromechanical assembly services available to speed up project timelines and ensure end-to-end quality control.

Durable • Reliable • High-caliber

Custom Cable & Wire Harness Assembly

Although cable and wire harness assembly play a critical role in contract manufacturing, the vast majority of sheet metal fabrication facilities are not equipped to support those services. GTR Manufacturing has the machinery, materials, and expertise to meet all your cable and wiring needs in-house — without depending on another supplier.

In electromechanical assembly, cable and wire harnesses are the connecting elements needed to safely and effectively transfer information to inaccessible components within a machine. As a trusted innovator in the precision sheet metal manufacturing industry, GTR goes above and beyond to provide cable and wire harness assembly services in addition to box build assembly and sub assembly for clients nationwide. From the medical sphere to renewable energy to security and robotics, wire harnesses and cables play a crucial role in today’s ever-expanding technological industries.

Staff certified to IPC/WHMA-A-620.

Wire Harness & Cabling Features

Wire Harness & Cabling Features

Engineering Support
Inventory Control
Are We A Fit?

Cable & Wiring Applications

GTR Manufacturing is proud to manufacture essential products across diverse industries:

  • Life Sciences
  • Medical
  • Test and Analytical
  • Semiconductor
  • Robotics
  • Renewable Energy

Wire Harnesses & Cabling Equipment

We carry a versatile selection of custom wire harnesses and cables:

  • Everything from ribbons to coaxial cables to complex harness assemblies
  • Gauges ranging from 30awg to 500mcm
  • A wide range of automated & manual tooling
  • Wire process equipment
  • Calibrated test equipment

Product Testing

GTR Manufacturing can perform hi-pot, continuity, capacitance, resistance, and point-to-point tests. We also have the capability to configure and manufacture interface cables for our Cable Eye test stations.

We use various test equipment, including oscilloscopes, signal generators, variable power supplies, current and voltage meters, variacs, and isolation transformers. We make custom test fixtures to the specific needs of our customers’ products and provide test reports when requested.


Engineering Support

GTR Manufacturing’s experienced engineering department can quickly support your concepts and design changes while maintaining revision control. We will work with your team to deliver quality parts at competitive costs.

Our sales, management, and engineering teams have experience in a wide range of industries and understand the changing needs of all of them. We work in close partnership with our clients in developing and refining products and production process planning to simplify manufacturing and create cost savings for your end product.

We have the capability to import and unfold your 3D models ( .dwg, .step, .iges, .sldasm, .ldprt, .dxf) built in Solid Works, Pro/E, and other modeling software. The model is unfolded and downloaded directly into the CAM process, reducing errors and assisting in short lead times for your sheet metal parts.



By using the Just-In-Time (JIT) inventory strategy, GTR Manufacturing schedules production to meet your ordering needs. We reduce costs by carrying less idle inventory, resulting in a quality product that is delivered on time at a lower price.

We pair JIT with the Kanban technique to manage our highly-efficient development process. We establish minimum and maximum quantities, fulfilling customer needs on a pull system. This method empowers us to reduce inventory for customers and suppliers and use lean production practices. In addition, we have full insight into your pipeline through an online portal, ensuring it’s always full.

Is GTR’s Wire Harness Assembly Service Right For Your Next Project?

  • Is your business in need of electromechanical assembly that meets strict industry requirements?
  • Have other manufacturers looked at your blueprints and ruled that your systems are “too difficult” or complicated to create?
  • Are you looking for a straightforward cable assembly but are surprised at how long the lead times are?

We are proud to simplify the precision sheet metal manufacturing processes by offering electromechanical assembly under the same roof as our other premium services.

Our end-to-end capabilities speed up project timelines by lowering the risk associated with relying on external supply chains and give us complete oversight and control over the entire production process—ensuring uncompromising quality.


Our Promise

Wire Harness Assembly Guarantee

We haven’t built a semi-centennial (50-year-old) business by just making parts alone; our success is equally measured by the trust our clients continually place in us generation after generation.

Leading the industry with the widest range of world-class precision sheet metal fabrication capabilities under one roof is only one of the many benefits of choosing GTR Manufacturing for your next Wire Harness Assembly or other fabrication project.

One Crew

The Industry's Only Single-source Sheet Metal Manufacturer

Manage one vendor, write one P.O., and hold only one party accountable to your project's timeline. Only thing left is to decide what to do with all that extra free time.

One-Stop Pit Stop

End-to-end Services, Limitless Capabilities

We've got the widest range of world-class precision sheet metal fabrication services under one roof. Got a need for speed? Having autonomy over the entire production process means you get the best of both shorter lead times and uncompromising quality.

One Leader

Setting the Pace Since 1973

Leading the industry for 50 years, we have earned an equal-parts reputation for time-tested reliability and forward-thinking ingenuity. We're meticulous engineers and expert craftsmen with a set of unmatched tools and experiences under our belt.

Yeah, we do that, too...


Assembly Capabilities


Box Build Assembly


Cable & Wire Harness Assembly


Sub Assembly


GTR Services


Sheet Metal Prototyping


Precision Sheet Metal Fabrication


CNC Milling & Turning


Metal Finishing


Electromechanical Assembly


Manufacturing Support


About Us


Meet Our Crew


Metal Fabrication Jobs


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GTR Answers the Call for Excellence

We understand that our clients build innovative products that are used to save lives, withstand extreme conditions, or perform highly specialized functions. We pride ourselves on doing everything right to deliver on time the first time. We honor our critical role in your project’s overall success and promise to do our part to help you reach the finish line on time.

Quality • Reliability • Capability