
HVAC & Locomotive Enclosures
Built for the Equipment That Keeps Moving.
Large-format metal enclosures, housings, frames, and assemblies for industrial HVAC and locomotive applications - fabricated, finished, and assembled under one roof.
From complex equipment housings to repeat production programs, Sintel combines engineering, fabrication, finishing, and assembly in one manufacturing environment.
Large-format fabrication. Integrated finishing. Built for production.
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A successful HVAC or locomotive enclosure program requires more than accurate fabrication.
The design has to work with the equipment, manufacturing process, handling requirements, and final installation.
The Enclosure Has to Work Around the Equipment.
Designed Around Your Equipment
Enclosure geometry, openings, mounting points, panels, doors, and structural components can be developed around the equipment configuration.
Manufacturing-Aware Engineering
DFM considerations can be addressed early to identify opportunities to simplify fabrication, welding, forming, finishing, and assembly.
Access & Service Considerations
Doors, panels, openings, and removable components can be incorporated around maintenance and service requirements.
Large-Format Handling
Sintel's facility and equipment are designed for large, heavy assemblies, including controlled handling of oversized parts.
Material Flexibility
Sintel works with carbon steel, stainless steel, tube steel, and aluminum, allowing material selection to be based on the specific requirements of the application.
Repeatable Production
The objective is not simply to build the first assembly. It's to establish a manufacturing process that can consistently reproduce it as demand grows.
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BUILT FOR HVAC & LOCOMOTIVES
Different Applications. One Manufacturing Approach.
HVAC and locomotive systems have different operating environments and equipment configurations.
Sintel builds the metal infrastructure around the specific application.
Industrial HVAC Enclosures
Custom metal housings and structures for industrial HVAC equipment, designed around equipment dimensions, access, and manufacturing requirements.
HVAC Equipment Housings
Fabricated housings and covers for mechanical and supporting HVAC equipment.
Locomotive Equipment Enclosures
Custom fabricated structures designed around locomotive equipment and available installation space.
Locomotive Cooling Components
Large fabricated components and assemblies supporting locomotive cooling systems.
Structural Frames & Supports
Welded frames, bases, brackets, and structural components supporting equipment and enclosure assemblies.
Access Panels & Doors
Custom-fabricated access components designed for inspection, service, maintenance, and equipment integration.
Large Welded Assemblies
Oversized structures where dimensions, weight, handling, finishing, and repeatability all matter.

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MANUFACTURING CAPABILITIES
From Raw Material to Finished Machine Enclosure
Engineering
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Design for Manufacturing
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Design collaboration
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CAD and manufacturability reviews
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Prototype-to-production planning
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Assembly optimization
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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Hardware installation
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Final fit-up
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Shipment preparation
Tube to finished enclosure. All in-house.

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HVAC & LOCOMOTIVE APPLICATIONS
Built for Equipment That Has to Perform in the Field
Sintel can support enclosure and structural fabrication programs for:
HVAC
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Industrial HVAC systems
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HVAC equipment housings
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Cooling equipment
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Mechanical equipment enclosures
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Large HVAC assemblies
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Equipment access structures
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HVAC support frames
Locomotives
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Locomotive cooling systems
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Locomotive equipment enclosures
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Cooling system tanks
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Equipment housings
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Structural assemblies
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Access panels and doors
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Locomotive support structures
Sintel's published gallery specifically identifies locomotive cooling system tanks (aluminum) as an existing work category, so this is a stronger application to emphasize than making broad locomotive claims that are not demonstrated on the current site.

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THE PROBLEM
When the Equipment Is Large, the Enclosure Can't Be an Afterthought.
Industrial HVAC and locomotive equipment can involve large footprints, complex geometries, demanding handling requirements, and multiple components that have to work together.
The manufacturing challenge often starts when the enclosure program is split across too many suppliers.
Frame From One Vendor. Sheet Metal From Another.
Every additional supplier creates another schedule, shipment, inspection point, and handoff.
Large assemblies become harder to coordinate as the number of vendors increases.
Large Parts Need Large-Format Capability
Oversized HVAC and locomotive assemblies require the right floor space, welding equipment, cranes, finishing systems, and loading process.
A fabricator may be able to build the individual components without being equipped to handle the finished assembly.
Finishing Can Become the Bottleneck
Large fabricated assemblies need to be finished without breaking the manufacturing flow.
When coating is handled by another supplier, transportation and handling become part of the production schedule.
Repeat Programs Need Repeatable Manufacturing
A design that works for a prototype or small batch may not be optimized for a larger production program.
The manufacturing process needs to be designed around repeatability from the beginning.
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Frequently Asked Questions (FAQs)
Sintel manufactures custom metal enclosures, equipment housings, structural frames, covers, access components, and large fabricated assemblies for industrial HVAC applications.
Yes. Large-format fabrication is a core part of Sintel's enclosure positioning. The company publishes powder coating capability up to 53' × 14' × 14' and maximum capacity of 30,000 lbs/hr.
Sintel's published work includes aluminum locomotive cooling system tanks, along with its broader positioning around locomotive enclosures.
Yes. Aluminum is among the materials Sintel identifies within its fabrication capabilities, and its gallery specifically includes aluminum locomotive cooling system tanks.
Yes. Sintel works with OEM customers to optimize existing designs for manufacturability, cost, weight, complexity, and production scalability.
Yes. Sintel's enclosure operation combines structural fabrication, sheet metal forming, welding, powder coating, liquid paint, assembly, and handling of oversized assemblies within its manufacturing operation.
Sintel's enclosure operation is positioned around repeat production and publishes capability of 4,000+ enclosures per year. Actual capacity for a specific HVAC or locomotive program would depend on the design, materials, complexity, and production requirements.
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From Electrical Frame to Finished Enclosure

Finished industrial machine enclosure

Large equipment housing
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Structural frame welding

Sheet metal forming

Powder coating

Finished machine assembly

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 Machine Is Engineered to Perform. Your Enclosure Should Be Engineered to Scale.
Don't let enclosure fabrication become the bottleneck in your equipment program.
Sintel brings engineering, structural fabrication, sheet metal, welding, finishing, and assembly together under one roof, helping equipment manufacturers move from prototype to repeatable production.
Built in Michigan. Built around your machine.
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WHY SINTEL

A Manufacturing Partner for HVAC & Locomotive 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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Engineering + Manufacturing
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Built for Volume
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Large Enclosures for Equipment That Can't Be Built Small
Industrial HVAC systems and locomotive equipment place different demands on an enclosure - but both require fabrication capabilities that go beyond standard sheet metal work.
Sintel brings large-format fabrication, welding, forming, finishing, and assembly 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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One Facility. One Manufacturing Partner. One Finished Assembly.
Sintel connects structural fabrication, sheet metal, welding, finishing, and assembly into a single manufacturing environment.
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Design for Manufacturing
Sintel works with OEM teams early to identify opportunities to improve manufacturability, reduce unnecessary complexity, and prepare designs for repeat production.
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Large-Format Fabrication
Tube frames, structural weldments, sheet metal components, and large assemblies are fabricated in-house.
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Forming & Fit-Up
Laser cutting, forming, and fit-up are integrated into the manufacturing process rather than split across multiple suppliers.
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Welding
Robotic, cobot, and manual welding capabilities provide flexibility across large structures and repeat production programs. Sintel's current manufacturing operation lists 4 robotic weld cells, 40 manual weld cells, and 20 cobot weld cells.
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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
Components and supporting structures can be assembled and prepared for shipment before leaving the facility.
