Home | Modular Buildings | Equipment Enclosures

Modular Equipment Enclosures & Machine Enclosures

Prefabricated protective enclosures engineered to house, protect, and isolate industrial equipment — from electrical switchgear and compressors to CNC machines and robotic cells. Custom-built to your exact specs and delivered ready to install.

Call (800) 326-4403 or Email Sales@MH-USA.com

Get a Free Quote (800) 326-4403

Modular equipment enclosure for industrial machinery

Custom Sizes

Engineered to Fit

NEMA 3R/4/12

Enclosure Ratings

4–8 Weeks

Typical Lead Time

UL 508A

Panel Compliance

What Is a Modular Equipment Enclosure?

A modular equipment enclosure is a prefabricated, engineered structure designed to house, protect, and isolate industrial equipment from environmental conditions, physical damage, contamination, and unauthorized access. Unlike field-built enclosures that require on-site welding, framing, and finishing, modular enclosures are manufactured in a controlled factory environment to precise specifications — then delivered and installed at your facility in a fraction of the time.

Material Handling USA designs and delivers equipment enclosures for applications ranging from electrical switchgear and transformer housings to compressor buildings, pump stations, CNC machine enclosures, robotic workcell cages, and climate-controlled instrument shelters. Every enclosure is engineered to meet the specific environmental, electrical, and structural requirements of the equipment it protects — including NEMA ratings, temperature control, ventilation, fire suppression, and seismic specifications.

Interior of a modular equipment enclosure with electrical panels

Equipment Enclosure Types & Applications

We engineer enclosures for virtually any equipment protection requirement — from simple weather covers to fully climate-controlled, code-compliant structures.

Electrical Equipment Enclosures

Protect switchgear, transformers, motor control centers (MCCs), and distribution panels from weather, dust, and unauthorized access. Available with NEMA 3R, 4, or 12 ratings, UL 508A-compliant internal wiring, and arc-flash rated ventilation systems.

Compressor & Pump Houses

Sound-attenuating enclosures for air compressors, hydraulic power units, and pump stations. Designed with proper ventilation, noise reduction (up to STC 47), vibration isolation, and maintenance access panels for routine servicing without removing the enclosure.

CNC & Machine Enclosures

Protect precision machinery from airborne contaminants while containing coolant mist, chips, and noise. Enclosures include chip-tight sealing, integrated mist collection, LED lighting, and operator access doors with safety interlocks.

Robotic Workcell Enclosures

Safety-rated enclosures around robotic arms and automated systems with proper guarding, light curtains, access interlocks, and viewing windows. Designed to meet OSHA machine guarding standards and ANSI/RIA 15.06 robot safety requirements.

Climate-Controlled Instrument Shelters

Temperature and humidity-controlled enclosures for sensitive analytical instruments, process control equipment, and communication systems. Maintain ±2°F temperature stability with redundant HVAC and continuous environmental monitoring.

Construction & Engineering Standards

Steel-framed equipment enclosure under construction

Every equipment enclosure starts with a structural steel or aluminum frame designed to support the specific loads and environmental conditions of your application. Wall and roof panels use insulated metal panels (IMPs) with R-values from R-11 to R-38 depending on climate requirements. Panel skins are available in galvanized steel, stainless steel, aluminum, or fiberglass reinforced plastic (FRP) for corrosive environments.

Foundations range from simple concrete pads to engineered steel skid bases for relocatable installations. Every enclosure is designed to meet local building codes, IBC structural requirements, and any applicable electrical codes (NEC, UL 508A, NFPA 70). For hazardous locations, we engineer enclosures to meet NEC Class I Division 1 or 2, and Class II Division 1 or 2 requirements with appropriate explosion-proof components.

Why Choose Modular Equipment Enclosures?

✓Faster Installation — Factory-built enclosures arrive ready to set in place — 60–70% faster than field-built alternatives that require weeks of on-site construction.

✓Consistent Quality — Every component is manufactured in a controlled environment with documented quality checks — eliminating weather delays and on-site variable workmanship.

✓Relocatable — When equipment moves, the enclosure moves with it. Skid-mounted designs allow crane relocation without demolition or reconstruction.

✓Custom Engineered — Every enclosure is designed to fit your specific equipment dimensions, utility connections, access requirements, and environmental conditions.

✓Code Compliant — Engineered to meet IBC, NEC, NFPA, OSHA, and local building codes with stamped engineering drawings and full documentation packages.

✓Lower Total Cost — Reduced labor, shorter timelines, and minimal site disruption result in 25–40% lower total installed cost compared to stick-built construction.

Completed modular equipment enclosure at an industrial site

Need a Hazardous Location Enclosure?

We engineer equipment enclosures for NEC Class I and Class II hazardous locations — including Division 1 and Division 2 areas. Explosion-proof lighting, ventilation, electrical components, and gas detection systems are integrated into the enclosure design to meet NFPA 70 and local AHJ requirements.

Common Equipment Enclosure Configurations

Select the right configuration based on your equipment type and protection requirements.

Application	Typical Size	Key Features	NEMA Rating	Starting Price
Electrical Switchgear	10×20 to 12×40 ft	Climate control, arc-flash vent, bus duct entry	3R / 4	$45,000–$120,000
Compressor Building	10×12 to 16×24 ft	Sound attenuation, ventilation, vibration pads	3R	$30,000–$75,000
Instrument Shelter	8×10 to 10×16 ft	±2°F HVAC, UPS power, cable management	4 / 12	$25,000–$60,000
Pump Station	8×12 to 12×20 ft	Drainage, spill containment, maintenance access	3R / 4X	$20,000–$55,000
Generator Enclosure	10×20 to 14×30 ft	Sound reduction, exhaust routing, fuel system	3R	$35,000–$90,000
Robotic Workcell	Custom	Safety interlocks, guarding, viewing windows	12	$15,000–$50,000

Frequently Asked Questions

What NEMA ratings are available for equipment enclosures?

We offer enclosures rated NEMA 1 (indoor general purpose), NEMA 3R (outdoor rain/sleet protection), NEMA 4 (outdoor watertight), NEMA 4X (outdoor corrosion-resistant watertight), and NEMA 12 (indoor dust/drip tight). The required rating depends on your installation environment and the sensitivity of the enclosed equipment.

Can you build enclosures for hazardous locations?

Yes. We engineer enclosures for NEC Class I (flammable gases) and Class II (combustible dust) environments, including both Division 1 (normally present) and Division 2 (abnormal conditions). All components — lighting, HVAC, electrical, and ventilation — are selected and installed to meet the specific hazard classification.

How long does it take to get a custom equipment enclosure?

Typical lead times range from 4–8 weeks for standard configurations and 8–12 weeks for complex custom designs requiring specialized engineering. Engineering and approval drawings are typically delivered within 1–2 weeks of order confirmation.

Can equipment enclosures include climate control?

Absolutely. We integrate HVAC systems sized for your specific heat load — including equipment heat generation, solar load, ambient conditions, and desired interior temperature. Options range from simple ventilation fans to precision cooling systems maintaining ±2°F temperature stability.

Are equipment enclosures relocatable?

Yes. Most modular equipment enclosures are designed with structural steel skid bases that allow crane lifting and flatbed transport to new locations. Utility connections use quick-disconnect fittings where possible to simplify relocation and minimize downtime.