Industrial Equipment Enclosures

Fabricated enclosures for PLC and SCADA control systems, variable frequency drives, servo drives, instrumentation, motor control, and power distribution equipment across the full range of industrial environments, standard, corrosive, washdown, hazardous area, and high-vibration. Enclosure material, wall construction, surface treatment, sealing system, and cable entry configuration are all specified against the installation environment, not selected from a catalogue. Manufactured to your design package or developed against your site and equipment specification.

Material Grades

CRCA steel IS 513 / EN 10130 CR4; ASTM A240 Grade 304; ASTM A240 Grade 316L; Glass-reinforced polyester; 6061-T6 / 5052-H32;

IP Rating Range

IP54; IP65; IP66; IP67; IP69K )

NEMA Rating

NEMA 12; NEMA 4; NEMA 4X; NEMA 7; NEMA 13

Gasket Material

EPDM; Silicone; FKM/Viton; Neoprene

IP69K Sealing Construction

Crevice-free 316L SS welded construction; continuous silicone perimeter seal; Ra ≤0.8 µm internal surface finish

*First-run lead times include environment review, material sourcing verification, and IP test at first article. Re-orders on established designs run on shorter lead times with retained specifications and process documentation.

Product Description

Industrial installation environments span a wider severity range than any other product category in Frigate’s portfolio. A standard factory floor PLC enclosure requires IP54, RAL powder coat, and DIN rail provisions. A chemical plant field enclosure requires 316L stainless steel, ISO 12944 CX corrosion-rated coating, IP66 sealing with chemical-resistant gasket material, and cable entries rated for the specific chemical atmosphere.

A food and beverage washdown enclosure requires IP69K with crevice-free 316L stainless construction and a surface finish that withstands 80°C steam jet cleaning without delamination. Each environment drives a distinct specification, Frigate’s environment review at the enquiry stage confirms the correct combination before fabrication begins.

Zone Classification

Zone 1 (Ex d flameproof, Ex e increased safety); Zone 2 (Ex n non-sparking, Ex e); Zone 21 and Zone 22 (explosive dust — Ex tb, Ex tc)

Ex d Flameproof Construction

Flame path gaps, thread engagement, and joint dimensions manufactured to certified drawing; verified by CMM at first article.

Surface Preparation

Sa 2.5 blast clean (ISO 8501-1) for C4/C5/CX coating systems; Sa 2.0 for C3; zinc phosphate for standard powder coat on CRCA steel

Back-Panel Thermal Interface

Machined flat back-panel seating surface (flatness ≤0.2 mm) for direct drive thermal contact;

Vibration Resistance

Structural review per IEC 60068-2-6; reinforced panel construction; captive M4 / M5 fasteners at all removable panels;

IK Impact Rating

IK08 standard; IK10 (20 J) for logistics, mining, and exposed field installations

Cable Gland Entry

Pre-punched and blank gland zones; M16–M63 metric glands standard; ATEX-certified cable glands for hazardous area;

Internal Mounting

35 mm DIN rail (EN 60715); mounting plate; back-panel sub-frame; component mounting rails per your equipment layout drawing

Earthing & Bonding

M6 / M8 earth studs; internal bonding bar; stainless earthing hardware for IP69K and corrosive environments

Environmental Compliance

RoHS 3; REACH SVHC <0.1% w/w; WEEE compliant; CE marking pathway for European market integration

Technical Advantages

VFD and servo drive enclosures introduce a thermal management requirement not present in most industrial enclosure types. High-power drives in sealed IP54+ enclosures generate heat loads that the enclosure body alone cannot dissipate. Frigate fabricates enclosures with integrated heatsink provisions, back-panel thermal interface surfaces, forced-air fan systems, and heat exchanger mounting provisions where the drive’s thermal model requires it.

These are fabricated into the enclosure structure at manufacture, not fitted as aftermarket additions. Where a sealed enclosure with internal climate control is required, Frigate fabricates the enclosure with the climate control unit mounting provisions, internal air circulation baffles, and condensate drainage provisions all integrated into the design.

Let's Get Started

Need reliable Enclosure for your next project? Get in touch with us today, and we’ll help you find exactly what you need!

Industry Application

Oil, Gas & Petrochemical

ATEX Zone 1 and Zone 2 enclosures for field-mounted instrumentation, PLC control panels, and junction boxes in explosive gas atmospheres. Ex d and Ex e certified construction; 316L stainless for sour gas and coastal offshore environments.

Food & Beverage Manufacturing

IP69K rated 316L stainless enclosures for high-pressure hot-water and steam washdown environments. Crevice-free construction; silicone gaskets; hygienic surface finish; EHEDG-compatible design for food contact zone installations.

Chemical & Water Treatment

GRP or 316L stainless enclosures with ISO 12944 CX coating systems for chemical plant, water treatment, and effluent processing environments. FKM/Viton gaskets for chemical-resistant sealing; cable entries rated for the specific chemical atmosphere.

VFD & Drive Control Panels

Enclosures with integrated heatsink profiles and forced-air provisions for VFD and servo drive panels across manufacturing, HVAC, and process control applications. Thermal provisions sized against your drive’s heat dissipation specification at DFM review.

Mining & Heavy Industry

IK10-rated, vibration-resistant enclosures for underground mining, quarrying, and heavy industry control equipment. Reinforced panel construction; captive fasteners; anti-vibration mounting provisions; ISO 12944 C5 coating for high-humidity underground environments.

Marine & Offshore

316L stainless and ISO 12944 CX-coated steel enclosures for marine vessel control systems and offshore platform instrumentation. Salt spray ≥4,000 hrs; vibration resistance per DNV GL or Lloyd’s Register requirements; IP66 minimum for exposed deck and machinery space installations.

Frigate Approved Quality Management System

At Frigate, quality is built into every stage of manufacturing. Our approved Quality Management System ensures that every material component.

Incoming Material Checking

Before production begins, all incoming materials are checked against specifications, drawings, and supplier documents.

In-Process Inspection

Quality is monitored during manufacturing to prevent defects and maintain process consistency.

Final Dimensional Checking

Finished parts are inspected before dispatch to confirm compliance with customer drawings and tolerances.

Packaging Control

Finished components are packed safely to prevent damage during handling and transportation.

Incoming Material Checking

In-Process Inspection

Final Dimensional Checking

Packaging Control

Quality Document

To help buyers evaluate our quality systems, we provide sample documents that reflect our inspection and reporting standards.

How We Delivered

Complex geometries engineered solutions that move businesses forward.

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Having Doubts? Our FAQ

We have a site with both chemical exposure and IP69K washdown requirements. Can one enclosure satisfy both?

Yes — 316L stainless with crevice-free construction and FKM/Viton gaskets satisfies both requirements simultaneously. The enclosure material, gasket chemistry, and sealing construction are all confirmed against the combined environment specification at DFM review stage. Submit your site chemical exposure data alongside the IP69K requirement and the correct specification is confirmed in writing before fabrication is committed.

Our VFD enclosure runs too hot in the field. Can Frigate redesign the thermal provisions?

Submit your drive’s heat dissipation specification and the current enclosure drawing. Frigate’s review will assess whether the thermal provisions — heatsink profile, fan frame, back-panel interface, or climate control mounting — are adequately sized against your drive’s actual heat load and will recommend modifications. Thermal provision redesign is assessed as a DFM review at the drawing submission stage before any fabrication is committed.

We need ISO 12944 C5 compliance documentation for our project submission. What does Frigate provide?

Frigate supplies DFT measurement records per coat, coating system specification sheet identifying primer and topcoat products, salt spray test results where applicable, and a Certificate of Conformance confirming the coating system meets ISO 12944 C5 requirements. This documentation is compiled per shipment and formatted for direct submission to your project verification requirement.

We're not sure whether 304 or 316L stainless is required for our installation. Can Frigate advise?

Yes, provide your site environment data including the chemicals present, ambient humidity, proximity to coastline, and washdown regime. Frigate’s engineering team will return a written material recommendation with the technical justification within 3 working days. If the environment is borderline between 304 and 316L, the recommendation will state which factors drive the decision so your engineering team can make an informed sign-off.

Our installation site classification is Zone 2, does that change the enclosure construction requirements compared to Zone 1?

Zone 2 permits Ex e (increased safety) and Ex n (non-sparking) construction, which imposes different requirements from the Ex d (flameproof) construction required for Zone 1, specifically around IP rating minimums, cable entry device selection, and internal component clearance distances rather than flame path geometry. The enclosure construction appropriate for your zone classification is confirmed at the environment review stage against your area classification document and the specific equipment to be housed. Submit your zone classification, gas group, and temperature class alongside the enclosure specification and Frigate’s engineering team will confirm the correct construction requirements before fabrication is committed.

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LOCATIONS

Registered Office

10-A, First Floor, V.V Complex, Prakash Nagar, Thiruverumbur, Trichy-620013, Tamil Nadu, India.

Operations Office

9/1, Poonthottam Nagar, Ramanandha Nagar, Saravanampatti, Coimbatore-641035, Tamil Nadu, India. ㅤ

Other Locations

GENERAL ENQUIRIES

LOCATIONS

Registered Office

10-A, First Floor, V.V Complex, Prakash Nagar, Thiruverumbur, Trichy-620013, Tamil Nadu, India.

Operations Office

9/1, Poonthottam Nagar, Ramanandha Nagar, Saravanampatti, Coimbatore-641035, Tamil Nadu, India. ㅤ

Components Built for Critical Performance

Engineered Products for Critical Applications

Industrial Equipment Enclosures

Product Description

Zone Classification

Ex d Flameproof Construction

Surface Preparation

Back-Panel Thermal Interface

Vibration Resistance

IK Impact Rating

Cable Gland Entry

Internal Mounting

Earthing & Bonding

Environmental Compliance

Technical Advantages

Let's Get Started

Industry Application

Frigate Approved Quality Management System

Quality Document

How We Delivered

Having Doubts? Our FAQ

We'd love to Manufacture for you!

LOCATIONS

Registered Office

Operations Office

Other Locations

GENERAL ENQUIRIES

LOCATIONS

Registered Office

Operations Office

Other Locations

GENERAL ENQUIRIES

Get Your Quote Now

Industrial Equipment Enclosures

Get Latest Price

Industrial Equipment Enclosures

Get Latest Price