PP Suction Cover
Custom PP suction cover / hood for efficient air extraction. Vacuum-formed polypropylene resists corrosion and chemicals, stays lightweight yet strong, and installs easily to round ducting. Ideal for labs, plating, welding fumes, dust, and odor control; sizes, colors and flanges customizable.
PP Suction Cover
Durable, Lightweight Polypropylene Hood For Localized Fume And Dust Extraction.
Think of this cover as the part that quietly makes extraction work better — the neat, corrosion-proof hood that captures fumes, dust, heat and odors before they ever get a chance to spread. Made from commercial-grade polypropylene, it’s light enough to lift by hand, tough enough to stand up to acids, alkalis and moisture, and shaped to pull air smoothly into your ductwork so the fan can do less work and your system works smarter.
Why customers prefer this design
Works where metals and paint fail. Polypropylene resists many chemicals and won’t rust or scale the way metal hoods will in corrosive environments.
Easy to fit and handle. The favorable strength-to-weight ratio means installers spend less time wrestling parts and more time bolting things down.
Cleaner airflow. The low-profile square body with a central round spigot helps reduce turbulence and promotes steady intake, improving extraction efficiency.
Simple to keep hygienic. Smooth, non-porous surfaces wipe clean — good for labs, food prep areas or any place where appearance and cleanliness matter.
Real-world places this fits
Labs, electroplating lines, chemical processing plants, wastewater treatment, paint booths, machining cells, and any industrial area where corrosive vapors or persistent dust are a problem. It’s also a smart, lower-maintenance alternative for maintenance teams who want reliable parts without constant replacement.
Smart features that matter on site
Consistent wall thickness and clean edges — formed to reduce snag points and dust traps.
Rounded transitions and precise angles — help prevent buildup and make cleaning faster.
Multiple sizes and outlet options — fits common duct diameters; outlets can be centered or offset to suit your layout.
Optional extras — reinforcing ribs, mounting holes, sealing grooves, anti-static grades, or prepped flanges for dampers and flexible connectors.
Installation & maintenance — practical tips
Position the spigot concentrically with the duct and use a flexible connector or gasket for a vibration-tolerant seal.
For frequent chemical exposure, choose the higher-grade PP option we recommend — it minimizes long-term embrittlement.
Routine cleaning is straightforward: soft cloth, warm water, mild detergent. Avoid strong solvents or abrasive pads.
If you need to mount multiple covers in a bank, stagger them slightly to avoid local air recirculation.
Customization & ordering
Tell us the duct diameter, preferred flange style, and whether you need anti-static or UV-stabilized material. We can:
Match outlet location (centered or offset)
Adjust thickness, ribs, and mounting patterns
Supply in your color range or add simple markings for part ID
Produce single prototypes or bulk runs with consistent tolerances
Quality & supply assurance
Each cover is inspected for shape consistency and clean finish before shipment. For wholesale or OEM runs we offer protective packing, bulk pricing, and technical collaboration — from drawing review through final delivery.
Quick FAQ
Q — Can these be used outdoors?
A — Yes. We offer UV-stabilized grades and colors best suited for prolonged outdoor exposure.
Q — Will it work with standard dampers and flexible connectors?
A — Yes — we can factory-prep flanges and spigots to match common damper sizes and connector types.
Q — How do I specify the right size?
A — Give us the duct inner diameter, any space constraints, and whether the spigot needs to clear a flange or frame — we’ll recommend the right model.
Q — What about static buildup?
A — Anti-static polypropylene is available for applications where dust cling or static discharge is a concern.
TKP Plastic is China's leading provider of vacuum forming solutions. We are defined by our commitment to innovation, uncompromising quality, and total customer satisfaction. Our expertise enables us to deliver projects that excel in cost-effectiveness, intricate design, and sustainable manufacturing. Partner with TKP to bring your vision to life with precision and reliability.








