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Metal Enclosure Manufacturers

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.

Reserve Enclosure Capacity

You get Captive Capacity and a Strategic Plan from Our President to achieve your Targets fast.

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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

Metal Enclosers Tube frames welded on cobot rails

Finished switchgear/electrical enclosure

Enclosures Powder Coated Up To 53' x 14' x 14'

Large electrical enclosure structure

30,000 lbs/hr of max capacity For Enclosers Manucturing

Tube frame welding

Cobots on rails with automated part scanning

Sheet metal forming and fit-up

Drive Thru Loading for finished enclosers

Powder coating

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Finished assembly ready for shipment

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WHY SINTEL

Sintel Advantages For Custom Metal Fabrication

A Manufacturing Partner for Electrical Equipment OEMs

  • Large-Format Capability

  • Vertical Integration

  • 40+ Years of Experience

  • Automation + Skilled Fabrication

  • Made in the USA

  • 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

  • Electrical distribution equipment

  • Power distribution equipment

  • Electrical control systems

  • Control cabinets

  • Power electronics

  • Electrical equipment housings

  • Industrial electrical systems

  • Modular electrical equipment

  • Supporting structural assemblies

Sheet metal enclosure fabrication

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MANUFACTURING CAPABILITIES

From Raw Material to Finished Electrical Enclosure

Engineering

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  • Design for Manufacturing

  • Design for Installation

  • CAD collaboration

  • Manufacturability reviews

  • Prototype-to-production planning

Fabrication

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  • Laser cutting

  • Press brake and forming

  • Tube frame fabrication

  • Sheet metal fabrication

  • Structural weldments

  • Large-format assemblies

Finishing

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  • Robotic welding

  • Cobot welding

  • Manual welding

  • Resistance welding

Assembly

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  • Automated powder coating

  • Large-format powder coating

  • Liquid paint

  • Surface protection

  • Controlled handling of oversized assemblies

Assembly

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  • Enclosure assembly

  • Component integration

  • Support structure assembly

  • Final fit-up

  • 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.

Custom enclosure manufacturer USA

Why Process Control Wins

Less movement, Less risk, Better results

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  • All processes under 1 roof

  • Automation and digital work instructions integrated to ERP

  • Experience scaling thousands of parts quickly

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Partner with sintel Robotic Welding Services

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.

large metal enclosure fabrication

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Enclosure fabrication

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.

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