When a purchasing agent or facilities manager is sourcing industrial air curtains, they're usually not browsing. They've got an opening, a set of specs, and a deadline. What they're still figuring out is which unit fits. Not just by door width, but by what that door is doing and who's standing near it.

NorthStock carries Schwank and TPI because those two brands don't answer the same question. For buyers outfitting more than one facility type, or managing a mix of customer-facing and back-of-house entries, that difference matters more than most product pages make clear.

What Drive-Thru Windows Actually Demand from Industrial Air Curtains
Schwank's Swift5 Series was built for a specific problem: a small opening where a customer is standing close enough to hear the unit running. Kiosk counters, drive-thru pass-throughs, retail windows. The spots where industrial air curtains need to hold a temperature barrier without becoming part of the ambient noise. The Swift5 runs at 50 dB(A). Most commercial air curtains in a comparable class pull 65 to 71 dB. In a drive-thru lane, that's an audible difference.

It mounts horizontally on a wall or ceiling, comes in white or black, and covers openings up to five feet. The 208V stepped electric heat output (2.5 or 3.7 kW) lets facilities managers adjust for seasonal load. These are heating and cooling air curtains that can carry heat in winter and drop back to airflow-only when the temperature doesn't call for it.

For QSR chains or retail operators managing multiple locations, speccing the wrong unit here costs more than the unit. A loud air curtain above a drive-thru window is a choice customers notice even if they can't say why.

When the Opening Calls for More: Industrial Air Curtains for Commercial Entries
TPI's CF-C Series covers 35 to 59-inch door widths, pushes up to 2,560 FPM on high speed, and runs on standard 120V, with no dedicated circuit and no electrician scheduled before installation day. Full metal housing, mechanical two-speed control, an adjustable air deflector. For loading dock entries, warehouse air curtains for high-traffic access points, or any facility where these industrial air curtains need to work hard without adding to the maintenance list, TPI's CF-C line keeps the spec simple. They're not trying to blend into a retail aesthetic. They're holding a seal.

Two-speed operation lets buyers dial airflow back during slower periods without a separate controller. For facilities managers standardizing on one unheated door air curtain across multiple sites, that's one less thing to manage.

Finding the Right Industrial Air Curtains Shouldn't Require Three Vendors
Some buyers treat these as fly fan doors and care mostly about keeping pests and debris out. Others are speccing HVAC air curtains to reduce heating and cooling load across a distribution center. Most fall somewhere in between, managing a mix of entry types and looking for units that hold up without overcomplicating the install. Energy-saving air curtains perform best when they're matched to the opening, and industrial ventilation solutions that aren't purpose-built for an application rarely stay long on the approved vendor list.

NorthStock carries Schwank and TPI so buyers don't have to split the order or settle. The right industrial air curtains for a five-foot retail window are made to order alongside the right option for a 59-inch commercial entry, both available through one supplier.

Contact NorthStock at 877-301-4660 or [email protected], or browse Schwank and TPI models at northstock.com.