Hood Body/Enclosure for Fume Extraction Hoods

Product Specifications

Technical details and manufacturing context for Hood Body/Enclosure

Definition

The hood body or enclosure is the primary structural component of a fume extraction hood, forming the physical chamber that captures, contains, and channels contaminated air, fumes, or particulates away from the work area. It provides the necessary geometry to ensure efficient airflow and containment. The body is typically fabricated from sheet metal such as stainless steel, galvanized steel, or aluminum, with material selection based on corrosion resistance, cost, and application requirements. Common material grades include Q235B carbon steel, 304 and 316L stainless steel, referenced against standards like GB/T 700, GB/T 3280, and ASTM A240. Sheet thickness typically ranges from 1.5 to 3.0 mm, with thicker material used for larger hoods or higher pressure applications. Standard dimensions vary from 600×600×800 mm to 2000×1500×2000 mm, with custom sizes available. The inlet diameter matches the duct size and ranges from 100 to 400 mm. Airflow capacity is typically 500 to 5000 m³/h, and static pressure ranges from 500 to 2000 Pa, ensuring compatibility with exhaust fans. Operating temperature is rated from -20°C to 80°C, with higher ratings possible for special coatings. Sealing class ranges from IP54 to IP65 per IEC 60529, with IP65 suitable for washdown environments. Surface treatments include powder coating or galvanizing for corrosion protection. Weight varies from 50 to 500 kg depending on size and material. Dimensional tolerances are ±1.0 mm per ISO 2768-m. Pressure rating is 1.0 to 1.6 MPa. These values are reference ranges and must be verified for the specific model and application with the legal manufacturer or supplier.

Working Principle

The hood body acts as a physical barrier and conduit. Contaminated air is drawn into the enclosure through its open face or capture points by negative pressure created by an exhaust fan. The body's shape and internal surfaces guide this airflow towards the duct connection, minimizing turbulence and preventing the escape of contaminants back into the workspace. The enclosure's geometry, including its dimensions and inlet configuration, is designed to optimize capture efficiency and maintain a safe working environment. Proper sealing and material integrity are essential to prevent leaks and ensure consistent performance.

Common Materials

Stainless Steel, Galvanized Steel, Aluminum

Technical Parameters

Parameter	Typical range	Notes & selection driver
Material	Q235B / 304 / 316L	Carbon steel for cost, stainless for corrosion resistanceGB/T 700, GB/T 3280, ASTM A240
Thickness	1.5–3.0 mm	Thicker for larger hoods or higher pressure
Dimensions (L×W×H)	600×600×800 – 2000×1500×2000 mm	Custom sizes available
Inlet Diameter	100–400 mm	Matches duct size
Airflow Capacity	500–5000 m³/h	Higher for larger hoods
Static Pressure	500–2000 Pa	Ensure fan compatibility
Operating Temperature	-20–80 °C	Higher for special coatings
Sealing Class	IP54–IP65	IP65 for washdown environmentsIEC 60529
Surface Treatment	Powder coating / Galvanized	Corrosion protection
Weight	50–500 kg	Depends on size and material
Tolerance	±1.0 mm	For critical mounting dimensionsISO 2768-m

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Duct Collar/Flange Part
Connection point for attaching the exhaust ductwork to the hood body.

Material: Steel
Baffles/Deflectors Part
Internal plates or vanes that help distribute airflow evenly and prevent backflow within the hood.

Material: Steel
Access Panel/Door Part
Removable section for maintenance, inspection, or cleaning of the interior and filters.

Material: Steel with gasket
Enclosure Body
The formed shell itself — the barrier that contains the contaminated air and steers it toward the duct.

Material: Sheet steel or stainless steel

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Fume Extraction Hood

View system integration details

Manufacturers of Hood Body/Enclosure

Manufacturer profiles associated with Hood Body/Enclosure.

Sourcing Hood Body/Enclosure from China?

Tell us your specification and target quantity — we will match it against manufacturer records and come back with the factories that fit.

Request manufacturers We manufacture this

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Frequently Asked Questions

What materials are commonly used for hood bodies?

Common materials include stainless steel (grades 304 and 316L), galvanized steel, and aluminum. Carbon steel (Q235B) is also used for cost-sensitive applications. Material selection depends on corrosion resistance, temperature, and chemical exposure. Always verify material suitability with the manufacturer for your specific process.

How do I determine the correct airflow capacity for my hood?

Airflow capacity depends on the hood size, capture velocity required, and the type of contaminants. The reference range is 500 to 5000 m³/h. Consult an engineer or the manufacturer to calculate the required airflow based on your work area and local regulations.

What is the significance of the pressure rating?

The pressure rating (1.0 to 1.6 MPa) indicates the maximum internal pressure the hood body can withstand. It is important for ensuring structural integrity and preventing deformation or leakage. Verify that the rating matches your system's operating pressure.

Can the hood body be customized to fit my ductwork?

Yes, custom sizes are available. The inlet diameter can be matched to your duct size, typically ranging from 100 to 400 mm. Provide your duct dimensions and layout to the manufacturer to ensure proper fit and airflow performance.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Buyer enquiry

Request manufacturing insight for Hood Body/Enclosure

Ask for use case, specification boundaries, supplier type, and RFQ preparation information for this product.

Where it goes: Straight to the CNFX editorial desk, and to the manufacturer if this product is linked to a claimed profile. Nothing is broadcast to a supplier list.
Your details stay here: We do not sell or rent enquiry data, and we do not add you to a mailing list. Used only to answer this request.
No commission, no middleman: CNFX is a directory. We take no cut of any order and never negotiate on a supplier's behalf.
What we don't claim: A listing is not an endorsement. Qualify every supplier and verify every figure yourself before ordering.

pressure:	-500 Pa to +500 Pa (typical), up to ±2000 Pa (reinforced designs)
flow rate:	100-10,000 m³/h (standard range), higher with custom sizing
temperature:	-20°C to +80°C (standard polymer), up to +150°C (specialized materials)
slurry concentration:	Not applicable (designed for gaseous/particulate flow, not liquid slurry)

Hood Body/Enclosure

Product Specifications

Applied To / Applications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards