Lingyufab
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  • Building 1, 6200 Hutai Road, Baoshan District, Shanghai, China
  • +8613003178786
  • sales@lingyufab.com

Exhaust Hood

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Leading Exhaust Hood Manufacturer

Leading Exhaust Hood Manufacturer

With over 20 years of precision sheet metal fabrication experience, Lingyufab (Shanghai Lingyu Industrial Co., Ltd.) manufactures high-quality exhaust hoods for commercial kitchens and industrial ventilation systems. We produce custom hoods in stainless steel and galvanized steel, with options for integrated grease filters, fire suppression systems, and custom duct connections. Our capabilities include laser cutting, CNC bending, stamping, welding, and powder coating. As a Mitsubishi Electric certified supplier, we serve food service, manufacturing, chemical, and welding industries worldwide—from 1-piece prototypes to high-volume production.

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China Exhaust Hood Manufacturer

As a China-based manufacturer located in Shanghai, Lingyufab leverages the region's robust supply chain and skilled workforce to produce high-quality exhaust hoods at competitive prices. We adhere to ISO 9001:2015 quality management system. Our in-house production eliminates outsourcing costs, delivering 15 to 20 percent cost savings to customers. We support 1-piece samples, 100-piece pilot runs, and high-volume mass production with monthly output exceeding 5,000 units.

Exhaust Hood Techspecs

Our exhaust hoods are engineered to precise specifications.

Materials
Stainless steel (304 and 316) for corrosion resistance and hygiene, and galvanized steel for cost-effective durability
Standard Sizes
600mm to 3000mm in width, with custom sizes available upon request
Thickness
1.0mm to 2.0mm depending on application requirements
Standard Features
Integrated grease filters (baffle or mesh type), tapered collection channels for grease drainage, built-in LED lighting, and pre-punched duct connection flanges
Surface Finishing
Brushed stainless steel, powder coating with any RAL color, and galvanized finish
Options
Fire suppression system integration, variable speed control, and UL/NSF certification upon request
Traceability
Every batch is backed by Mill Test Certificates ensuring full material traceability
Custom Exhaust Hood Parts

Lingyufab specializes in producing custom exhaust hood parts including:

Wall-mounted Canopy Hoods                        — for commercial kitchens
Island Canopy Hoods                        — for open kitchen layouts
Proximity Hoods                        — for close-capture of cooking fumes
Industrial Fume Extraction Hoods                        — for welding and chemical applications
Laboratory Fume Hoods                        — for chemical containment
Grease Filters and Filter Housings                        — for kitchen ventilation
Duct Connections and Transition Pieces                        — for system integration
Back Panels and End Caps                        — for custom configurations
Custom Lighting and Control Panels                        — for system integration

Each part is tailored to your specific equipment configuration, space constraints, and ventilation requirements. Our engineering team provides upfront technical support, including airflow analysis, design optimization, and cost-reduction recommendations. We support reverse engineering services. If you have a physical sample without drawings, we can 3D scan, model, and generate production-ready engineering prints. Whether you need a single prototype or thousands of units, we deliver consistent quality with zero MOQ for prototyping stages.

Exhaust Hood Applied in Sheet Metal Fabrication

What truly sets Lingyufab apart is our ability to integrate the full spectrum of sheet metal processes, including laser cutting, CNC bending, stamping, welding, and surface treatment, into a seamless manufacturing workflow for exhaust hoods. Rather than outsourcing individual steps to multiple vendors, we manage everything in-house, ensuring tighter quality control, faster lead times, and consistent communication throughout the entire production cycle. With our in-house fastener manufacturing, we can pre-install mounting brackets, filter clips, light fixtures, and duct connection hardware directly onto your hoods, eliminating external sourcing and reducing installation time on your end. The result is a streamlined, cost-effective solution that provides reliable ventilation and air quality control in demanding environments.

Electronics-Soldering-Exhaust-Hood

Electronics-Soldering-Exhaust-Hood

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Commercial-Kitchen-Exhaust-Hood

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Welding-Fume-Hood

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Features of Exhaust Hood

Exhaust hoods offer efficient capture and removal of airborne contaminants with several key features. They are constructed from durable stainless steel (304 and 316) or galvanized steel, with options for integrated grease filters for kitchen applications or spark arrestors for industrial use. Standard features include tapered collection channels for draining captured grease, removable filters for easy cleaning, built-in lighting, and customizable duct connections. Surface finishing options include stainless steel, powder coating, or galvanized finishes to resist corrosion and withstand high heat environments. Available with fire suppression system integration, variable speed control, and UL or NSF certification upon request.

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Features of Exhaust Hood
Applications of Exhaust Hood

Applications of Exhaust Hood

Our exhaust hoods are widely deployed in commercial kitchens for capturing grease, smoke, and odors from cooking equipment such as ranges, griddles, fryers, and charbroilers. They are also used in industrial facilities for extracting welding fumes, chemical vapors, and airborne dust at manufacturing workstations. Additional applications include laboratories for fume containment during chemical handling, food processing plants for removing steam and heat, and automotive shops for exhausting exhaust gases and paint fumes. They provide essential air quality control, worker protection, and regulatory compliance in demanding environments. Lingyufab supports 1-piece prototyping, 100-piece pilot runs, and high-volume mass production with monthly delivery exceeding 5,000 units.

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What is Exhaust Hood?

An exhaust hood is a ventilation device designed to capture and remove airborne contaminants—such as smoke, grease, fumes, heat, steam, and dust—from the air at their source. It is typically mounted above cooking equipment or industrial workstations and connected to a duct system that exhausts contaminated air to the outside. Exhaust hoods are essential for maintaining indoor air quality, ensuring worker and patron safety, and complying with fire and health regulations. They are widely used in commercial kitchens, industrial facilities, laboratories, and automotive shops. Available in wall-mounted, island, proximity, and custom configurations, exhaust hoods can be fabricated from stainless steel or galvanized steel with integrated filters, lighting, and fire suppression systems.

Features of Exhaust Hood
Efficient Contaminant Capture
Designed to capture smoke, grease, fumes, and heat at the source before they disperse into the environment.
Durable Construction
Made from stainless steel (304 and 316) or galvanized steel for long-term resistance to heat, corrosion, and grease buildup.
Integrated Filtration
Equipped with baffle or mesh grease filters that are removable for easy cleaning and maintenance.
Grease Drainage System
Tapered collection channels direct captured grease to a collection cup for safe disposal.
Built-in Lighting
Integrated LED lighting provides clear illumination of the cooking or work surface.
Customizable Duct Connections
Pre-punched flanges and custom duct connections for easy integration with existing ventilation systems.
Fire Safety Integration
Options for fire suppression system integration and UL/NSF certification.
Surface Protection
Brushed stainless steel or powder coating provides corrosion resistance and easy cleaning.
Applications of Exhaust Hood
Commercial Kitchens
Capturing grease, smoke, and odors from ranges, griddles, fryers, charbroilers, and ovens in restaurants, hotels, and institutional kitchens.
Industrial Facilities
Extracting welding fumes, chemical vapors, and airborne dust at manufacturing workstations.
Laboratories
Containing chemical fumes and vapors during laboratory procedures.
Food Processing Plants
Removing steam, heat, and airborne particles from cooking and processing operations.
Automotive Shops
Exhausting vehicle exhaust gases and paint fumes from spray booths.

Lingyufab supports 1-piece prototyping, 100-piece pilot runs, and high-volume mass production with monthly delivery exceeding 5,000 units.

Exhaust Hood Guide for Sheet Metal Assembly

When designing and fabricating exhaust hoods, consider the following guidelines:

Material Selection
Choose stainless steel (304 or 316) for food-grade and corrosive environments, or galvanized steel for cost-effective applications where corrosion resistance is still required.
Thickness Consideration
Select thickness from 1.0mm to 2.0mm based on hood size, weight, and structural requirements. Larger hoods may require thicker material or additional bracing.
Filter Integration
Specify baffle or mesh grease filters based on the type of contaminants and required filtration efficiency. Ensure filter housings are designed for easy removal and cleaning.
Grease Drainage
Incorporate tapered collection channels and drain cups to capture and direct grease for safe disposal. Proper sloping prevents grease accumulation.
Duct Connection Design
Design duct connection flanges with pre-punched holes for easy attachment to ductwork. Ensure connection sizes match the exhaust system specifications.
Lighting and Electrical
Integrate LED lighting fixtures and ensure proper electrical enclosures for safety. Consider UL certification for electrical components.
Fire Safety
Incorporate fire suppression system integration where required by local codes. Ensure hood materials and construction meet fire safety standards.
Surface Treatment
Apply brushed finish for stainless steel or powder coating for galvanized steel to enhance corrosion resistance and ease of cleaning.
Exhaust Hood Material
Stainless Steel 304
Excellent corrosion resistance, food-grade, easy to clean — Commercial kitchens, food processing, laboratories.
Stainless Steel 316
Superior corrosion resistance, marine-grade — Chemical exposure, coastal environments, high-corrosion applications.
Galvanized Steel
Cost-effective, good corrosion resistance — Industrial ventilation, general exhaust applications.

Material thickness typically ranges from 1.0mm to 2.0mm depending on hood size and structural requirements.

Exhaust Hood Accuracy

Precision is critical for exhaust hoods to ensure proper fit, efficient airflow, and reliable performance. Lingyufab maintains the following accuracy standards:

Dimensional Tolerances
±0.5mm for critical features and connection points.
Flatness
Controlled within 1.0mm per meter to ensure proper sealing and aesthetic appearance.
Squareness
Corners maintained within 1.0mm per meter to ensure proper fit with ductwork and surrounding equipment.
Filter Housing Alignment
Precise alignment of filter slots for easy filter insertion and removal.
Hole Alignment
Accurate positioning of mounting holes for filters, lighting, and duct connections.

These standards are maintained through advanced laser cutting, CNC bending, and welding equipment, combined with rigorous in-process inspection and final quality control checks.

How to Control Quality for Exhaust Hood?

Lingyufab implements a comprehensive quality control system for exhaust hoods:

Raw Material Inspection
All incoming materials are verified with Mill Test Certificates (MTC) to ensure chemical composition and mechanical properties meet specifications.
In-process Inspection
Laser cutting and CNC bending accuracy are monitored throughout production. Weld quality is inspected visually and tested for integrity.
Dimensional Verification
Automated measuring equipment is used to verify hood dimensions, hole positions, and overall geometry against engineering drawings.
Filter Fit Testing
Each hood undergoes filter fit testing to ensure proper filter insertion and removal without binding.
Grease Drainage Testing
Tapered channels are inspected for proper slope and grease flow to collection cups.
Surface Finish Inspection
Coating thickness is measured using non-destructive thickness gauges. Visual inspection ensures uniform coverage and no surface defects.
Lighting and Electrical Check
Integrated lighting is tested for proper operation and compliance with electrical safety standards.
Assembly Fit Check
Prototype and first-article samples undergo full assembly fit checks to verify all components fit together correctly.
Traceability
Every batch is assigned a unique batch number linking all production records, material certificates, and inspection reports for full traceability.
ISO 9001:2015 Compliance
All quality processes are documented and audited under our ISO 9001:2015 certified quality management system.
What Parts Can Be Manufactured by Exhaust Hood?

Exhaust hoods and related components can be fabricated into various configurations to suit different applications:

Wall-Mounted Canopy Hoods                        — for commercial kitchens and cooking equipment
Island Canopy Hoods                        — for open kitchen layouts with cooking equipment in the center
Proximity Hoods                        — for close-capture of fumes and heat near cooking surfaces
Industrial Fume Extraction Hoods                        — for welding, chemical, and manufacturing applications
Laboratory Fume Hoods                        — for chemical containment and safe laboratory procedures
Grease Filters and Filter Housings                        — baffle and mesh type filters
Duct Connections and Transition Pieces                        — for system integration
Back Panels and End Caps                        — for custom configurations
Custom Lighting and Control Panels                        — for integrated lighting and ventilation control
Grease Collection Cups and Drainage Components — for safe grease disposal
Exhaust Hood Manufacturer

Lingyufab (Shanghai Lingyu Industrial Co., Ltd.), established in 2003, is a leading exhaust hood manufacturer with over 20 years of precision sheet metal fabrication experience. As a Mitsubishi Electric certified core supplier adhering to Japanese quality standards, we combine advanced laser cutting, CNC bending, stamping, welding, and powder coating to produce high-quality ventilation solutions for commercial and industrial applications.

Our ISO 9001:2015 certified facility in Shanghai offers end-to-end services from design assistance to mass production. We support 1-piece prototyping for design validation, 100-piece pilot runs for testing, and high-volume mass production with monthly output exceeding 5,000 units. Backed by in-house fastener manufacturing, we can pre-install mounting brackets, filter clips, light fixtures, and duct connection hardware directly onto your hoods, streamlining your supply chain and reducing installation time.

With competitive pricing, 15-20% cost savings through in-house production, and full material traceability with MTC for every batch, Lingyufab delivers reliable, cost-effective exhaust hood solutions for commercial kitchens, industrial facilities, laboratories, and automotive shops worldwide.

Exhaust Hood FAQ
Q1: What materials do you use for exhaust hoods?
We offer stainless steel (304 and 316) for food-grade and corrosive environments, and galvanized steel for cost-effective industrial applications. Material selection depends on your application requirements, hygiene standards, and budget.
Q2: What are the standard sizes available?
Standard widths range from 600mm to 3000mm. Custom sizes are available upon request for specific equipment configurations and space constraints.
Q3: Do you offer custom designs and configurations?
Yes. We specialize in custom designs tailored to your specific equipment, space, and ventilation requirements. Our engineering team provides technical support including airflow analysis and design optimization.
Q4: Do you offer fire suppression system integration?
Yes. We can integrate fire suppression systems into your exhaust hoods. Options are available upon request and are designed to meet local fire safety codes.
Q5: What is the minimum order quantity (MOQ)?
We have zero MOQ for prototyping stages. We support 1-piece prototypes, 100-piece pilot runs, and high-volume mass production based on your requirements.
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