
Switchgear & Electrical Enclosures
Electrical Enclosures Built for the Equipment Inside.
Custom metal enclosures, structural frames, and assemblies for switchgear and electrical equipment, fabricated, finished, and assembled under one roof.
From individual equipment housings to repeat production programs, Sintel helps electrical equipment manufacturers build the enclosure around the system without adding unnecessary fabrication partners.
USA manufacturing. Built for demanding electrical infrastructure.
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BUILT FOR SWITCHGEAR & ELECTRICAL EQUIPMENT
Enclosures Designed Around the Equipment
Every electrical system has its own footprint, configuration, access requirements, and manufacturing constraints.
Sintel builds the metal infrastructure around those requirements.
Switchgear Enclosures
Custom metal enclosures fabricated around switchgear equipment and associated components.
Electrical Equipment Housings
Protective metal housings for electrical and power equipment requiring custom dimensions and configurations.
Control & Electrical Cabinets
Fabricated cabinets and housings designed around equipment layout, access, mounting, and integration requirements.
Structural Frames
Welded tube and structural frames designed to support large electrical enclosures and equipment assemblies.
Equipment Supports
Custom brackets, supports, mounting structures, and internal components fabricated as part of the broader enclosure program.
Large Electrical Assemblies
Large-format fabricated structures where dimensions, weight, handling, finishing, and repeatability all matter.

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One Facility. One Owner. One Finished Electrical Enclosure.
Sintel integrates structural fabrication, sheet metal, finishing, and assembly into a single manufacturing environment.
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Design for Manufacturing
Sintel works with OEM teams to identify manufacturing considerations early, before fabrication issues become production problems.
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Structural Fabrication
Tube frames, structural weldments, supports, and large assemblies are fabricated in-house.
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Sheet Metal & Forming
Laser cutting, forming, and fit-up are integrated into the enclosure manufacturing process.
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Welding
Robotic, cobot, and manual welding capabilities support both repeat production and complex assemblies.
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Finishing
Powder coating and liquid paint capabilities allow large assemblies to remain within the Sintel manufacturing flow.
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Assembly
Finished components and supporting hardware can be assembled before shipment, reducing downstream work.
One connected process. Fewer handoffs. More control over the finished enclosure.
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From Electrical Frame to Finished Enclosure

Finished switchgear/electrical enclosure

Large electrical enclosure structure
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Tube frame welding

Sheet metal forming and fit-up

Powder coating

Finished assembly ready for shipment
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WHY SINTEL

A Manufacturing Partner for Electrical Equipment OEMs
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Large-Format Capability
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Vertical Integration
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40+ Years of Experience
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Automation + Skilled Fabrication
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Made in the USA
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Built for Volume
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A successful genset enclosure program is about more than getting the metal fabricated.
The design and manufacturing process have to work together.
The Enclosure Has to Work Before It Leaves the Factory
Designed Around Your Equipment
Enclosure dimensions, openings, mounting points, access areas, and structural elements can be developed around the equipment configuration.
Design for Manufacturability
DFM helps identify opportunities to simplify fabrication, welding, forming, finishing, and assembly before production begins.
Design for Installation
Large electrical assemblies need to be manufactured with transportation, handling, installation, and repeat deployment in mind.
Structural Integrity
Tube frames and welded structures provide the foundation for large and demanding enclosure assemblies.
Repeatable Production
Manufacturing processes can be developed around repeat programs rather than treating every enclosure as a one-off job.
Controlled Finishing
Large assemblies can move through Sintel's in-house powder coating and liquid paint capabilities.
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SWITCHGEAR & ELECTRICAL APPLICATIONS
Built Around the Equipment That Powers Critical Systems
Sintel can support enclosure and structural fabrication programs for:
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Switchgear
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Electrical distribution equipment
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Power distribution equipment
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Electrical control systems
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Control cabinets
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Power electronics
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Electrical equipment housings
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Industrial electrical systems
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Modular electrical equipment
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Supporting structural assemblies

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MANUFACTURING CAPABILITIES
From Raw Material to Finished Electrical Enclosure
Engineering
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Design for Manufacturing
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Design for Installation
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CAD collaboration
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Manufacturability reviews
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Prototype-to-production planning
Fabrication
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Laser cutting
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Press brake and forming
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Tube frame fabrication
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Sheet metal fabrication
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Structural weldments
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Large-format assemblies
Finishing
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Robotic welding
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Cobot welding
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Manual welding
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Resistance welding
Assembly
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Automated powder coating
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Large-format powder coating
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Liquid paint
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Surface protection
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Controlled handling of oversized assemblies
Assembly
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Enclosure assembly
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Component integration
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Support structure assembly
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Final fit-up
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Shipment preparation
Tube to finished enclosure. All in-house.

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Built for Electrical Equipment. Manufactured for Repeatability.
Switchgear and electrical equipment enclosures must do more than just surround the equipment.
They have to accommodate the equipment footprint, internal components, access requirements, cable routing, structural loads, environmental requirements, finishing, and installation process.
Sintel brings the major manufacturing stages together under one roof.
40+ years
Metal fabrication experience
53' × 14' × 14'
Powder coating capability for oversized structures
30,000 lbs/hr
Maximum capacity
In-House
Fabrication, finishing & assembly
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Frequently Asked Questions (FAQs)
Sintel manufactures custom metal enclosures and structural assemblies for switchgear, electrical equipment, control systems, power electronics, and related industrial applications.
Yes. Sintel's enclosure manufacturing capabilities are designed around large-format fabrication, including oversized structural assemblies and large-format powder coating.
Yes. Sintel's enclosure manufacturing model is designed to support both custom programs and repeat production at volume. The current enclosure positioning cites capacity of 4,000+ enclosures per year.
Yes. DFM is part of Sintel's broader engineering and manufacturing approach. The company works with OEM customers to optimize designs for fabrication, welding, finishing, assembly, and repeat production.
Sintel works with materials including carbon steel, stainless steel, tube steel, and aluminum. Material selection should be based on the specific enclosure's structural, environmental, weight, and performance requirements.
Yes. Sintel integrates structural and sheet metal fabrication, welding, powder coating, liquid painting, and assembly into its manufacturing operations.
Sintel provides full assembly and integration services, allowing enclosure components and supporting structures to be prepared before shipment.

Why Process Control Wins
Less movement, Less risk, Better results
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All processes under 1 roof
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Automation and digital work instructions integrated to ERP
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Experience scaling thousands of parts quickly

Your Electrical Equipment Deserves a Manufacturing Partner That Can Keep Up.
Switchgear and electrical equipment programs demand more than a fabricator that can build the first enclosure.
They need a partner that can manufacture, finish, assemble, and repeat the design as the program grows.
Sintel brings engineering, fabrication, welding, finishing, and assembly together under one roof.
Built in Michigan. Built for electrical infrastructure.

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THE PROBLEM
The Electrical Equipment Is Only One Part of the Build.
A switchgear or electrical equipment program can involve multiple fabrication processes, suppliers, finishes, and assembly requirements.
Frame From One Vendor. Sheet Metal From Another.
Structural fabrication, sheet metal forming, welding, and finishing may happen in different facilities.
Every handoff adds another schedule to manage.
Large Enclosures Create Manufacturing Constraints
Oversized electrical enclosures require the right equipment, floor space, handling systems, finishing capability, and shipping process.
Not every fabricator is equipped for the complete assembly.
Finishing Can Become the Bottleneck
A supplier may be able to fabricate the enclosure but lack the capacity to powder coat or finish the complete assembly at the required size.
Volume Changes the Process
A design that works for a handful of units may not be optimized for hundreds or thousands.
The manufacturing process needs to be considered before production ramps.