Steel Enclosure Containers for Generators, Compressors and Power Units

Steel Enclosure Containers for Generators, Compressors and Power Units

Generators, compressors and power units run best when they are protected from weather, dust and tampering, and when they get the air they need to stay cool. A purpose-built steel enclosure container does both. At Nika Steelworks we manufacture insulated, ventilated enclosure containers from S355 and S235 structural steel, built around your equipment and your drawing. Louvres, doors, hatches, handles, hinges and cut-outs are all made and fitted to your specification, so the enclosure fits your machine, not the other way round.

What Is an Equipment Enclosure Container?

An equipment enclosure is a welded steel housing that stands around a machine, either outdoors on a site or indoors in a plant. It keeps rain, dust and unauthorised access away from the equipment, gives service staff safe, lockable access, and lets air flow through for cooling. A good enclosure is strong enough to be moved and positioned, rigid enough that panels and doors stay square, and finished so that it lasts outdoors for years.

Typical equipment housed in our enclosures:

• Diesel and gas generator sets
• Compressors and compressed air units
• Power units and hydraulic power packs
• Electrical, switchgear and control equipment
• Pumps and other industrial machinery

Ventilation: Louvred Panels Sized for Your Equipment

Engines, compressors and electrical equipment generate heat, and an enclosure that traps it shortens equipment life. We build louvred ventilation panels into the walls, doors or roof, sized and positioned for the airflow your equipment needs. Louvres let air in and out while keeping rain and direct debris out. Send us the equipment’s data sheet or required airflow, and we will plan the louvre area and position around it.

Thermal Insulation and Protective Lining

Inside, the walls are fitted with thermal insulation and a protective inner lining. Insulation helps keep the interior temperature more stable in hot sun or cold weather, and the lining protects the insulation from damage during service and cleaning. The result is an enclosure that protects the equipment and is easy to maintain.

Doors, Hatches and Locking

Service access is designed in from the start. We fit hinged doors, smaller service hatches for controls and fill points, lockable handles and heavy-duty hinges, positioned for the way your technicians reach the equipment. Doors are checked at assembly so they close squarely against the frame and seal properly. Because all auxiliary parts are specified by the customer, we use the handles, locks, hinges and fittings that match your site standards.

Cut-outs and Auxiliary Parts to Your Specification

Every installation connects to the outside world: power cables, control cables, pipes and ducts. We cut openings for them exactly where your drawing places them, and fit the auxiliary parts you specify. Whatever your standard parts are, tell us up front and we will build around them. This is one of the main reasons customers order custom enclosures instead of buying a standard unit.

Materials and Construction

Our enclosures are welded from S355 and S235 structural steel: a rigid steel frame with steel panel walls and roof on a steel base frame. S355 is used where more strength is needed, such as in frames and load-bearing members, and S235 in less loaded panels, so the structure is strong without carrying more weight than it has to. Plate and tube sizes are chosen for the equipment weight and how the enclosure will be handled.

Example Sizes

We have built more than ten enclosures in a range of sizes. Two examples:

• 3700 × 2100 × 2500 mm (length × width × height): a large enclosure for bigger power units and generator sets.
• 2400 × 1400 × 2400 mm: a compact enclosure for smaller units and tight sites.

We also build smaller cabinet-style enclosures and other dimensions on request. Send us your equipment’s dimensions and clearance needs, and we will propose the size.

Industries and Applications

Equipment enclosures are used wherever power, compressed air or control equipment has to run reliably outdoors or in harsh conditions:

• Power generation and backup power: generator housings for sites, plants and remote locations.
• Compressed air systems: enclosures for compressors and associated equipment.
• Electrical and utilities: housings for switchgear, transformers and control gear.
• Construction and rental fleets: weatherproof housings for site power and equipment.
• Mining and quarrying: protective enclosures for equipment in dust and rough handling.
• Manufacturing and process plants: housings for machinery and auxiliary systems.
• Marine and ports: enclosures finished for exposed, salt-laden air.

If your use is not listed, tell us what the equipment is and where it will stand, and we will design the enclosure with you.

How We Manufacture Steel Enclosures

The whole job is planned as one route, which keeps quality and lead times in one place.

1. Cutting. Plate, tube and profiles are cut to size by laser or plasma cutting, including louvre openings and cut-outs, directly from your drawing or DXF file.
2. Bending and forming. Panels, flanges and door edges are formed on the press brake (bending and rolling).
3. Welding and fabrication. Frame, panels, roof and base are assembled and welded to the drawing (welding and fabrication).
4. Assembly. Doors, hatches, louvres, hinges and handles are fitted and checked for alignment.
5. Sandblasting and painting. The structure is blasted and painted (sandblasting and paint).
6. Insulation and final fitting. Thermal insulation and the inner lining are installed, and the enclosure is checked before dispatch.

Parts that need precise machined features can be made on our CNC machines. You can see our equipment on the machine park page.

Surface Protection: Paint and Coating

Enclosures stand outdoors, and bare steel rusts. After fabrication, the structure is sandblasted and painted in the colour you specify, so the enclosure leaves us ready for installation. For coastal sites, chemical areas or long-term outdoor use, we can arrange galvanizing and other protective coatings.

Quality and Inspection

Each enclosure is checked visually and dimensionally against the drawing, including overall size, door and hatch fit, louvre and cut-out positions and weld quality. Dye penetrant testing of welds is available when your specification calls for it. If you need specific inspection documents, mention it with your request. You can read more on our quality page.

Made to Drawing, From One Unit to a Series

We work from 2D drawings, DXF files and CAD data, or from a sketch with your equipment dimensions. We build one-off enclosures and small series, and for repeat orders we keep the setup identical so every unit matches the last.

What to Tell Us When You Ask for a Quote

• Equipment type and dimensions, including service clearances
• Required ventilation or airflow
• Door and hatch layout, handles and locking
• Cut-outs for cables, pipes and ducts
• Insulation and lining needs
• Paint colour or coating
• Quantity and delivery location

More from Nika Steelworks

If you need a plain storage or collection container, see our custom steel containers. Learn more about Nika Steelworks, see all our services, or browse finished work on the projects page.

Frequently Asked Questions

Can you build an enclosure around our generator or compressor?

Yes. Send us the equipment dimensions or drawing, and we will design the enclosure around it, including louvres, doors and cut-outs.

What steel do you use?

Structural steel S355 and S235.

Are the enclosures insulated?

Yes. They are fitted with thermal insulation and a protective inner lining.

How is the equipment ventilated?

Through louvred panels sized and positioned for your equipment’s airflow.

Can you fit our own handles, hinges and locks?

Yes. All auxiliary parts are fitted to your specification.

What sizes can you make?

Examples are 3700 × 2100 × 2500 mm and 2400 × 1400 × 2400 mm. We have built more than ten enclosures in a range of sizes, and other dimensions are made on request.

Do you paint the enclosures?

Yes. We sandblast and paint in the colour you specify, and can also galvanizing or other coatings.

Do you make single units or only series?

Both. We make one-off enclosures and small series.

Request a Quote for a Steel Enclosure Container

Send us your equipment dimensions or drawing, the quantity and the delivery location, and we will come back with a clear quote. Contact Nika Steelworks to get started.