Tornado Tempest Wide-Area Cordless Carpet Vacuum Sweeper

Tornado Tempest TV400-W26-U — Wide-Area Cordless Carpet Sweeper Vac

The Tornado Tempest (TV400-W26-U) delivers wide-area carpet cleaning with the performance of an upright vacuum across a 26″ cleaning path, covering 19,000 square feet per hour in a single pass — with no power cord, no outlet changes, and no tripping hazards. Four motors drive both continuous airflow and the roller brush simultaneously for thoroughness that competing cordless sweepers cannot match. At just 56 dB, it’s quiet enough to run in hotels, conference centers, and healthcare facilities during occupied hours. Powered by an interchangeable 36V 7.5Ah lithium-ion battery delivering 60 minutes of runtime per charge, with onboard storage for a second battery for continuous back-to-back use. Backed by a 4-year parts / 2-year labor warranty — the strongest warranty in the Tornado commercial lineup.

⚠ Battery (Part #K24450750) and charger (Part #K24450530) are required to operate and sold separately. See below for links and pricing.

Twin City Vacuum in Crystal, Minneapolis, MN is an authorized Tornado dealer. We carry the complete Tornado vacuum lineup and stock all Tempest accessories. Questions? Call us at 763-535-0770. Free shipping on orders over $30 to all 50 states.

What Makes the Tempest Different from a Standard Commercial Upright

A standard commercial upright vacuum — like the Tornado CK ULW 13/1 — cleans a 13″ path at 2,400 sq ft/hr. The Tempest covers a 26″ path at 19,000 sq ft/hr. That’s roughly eight times the productivity per hour. In a hotel with 300 carpeted guest rooms averaging 350 sq ft each, a single Tempest operator can clean all 105,000 sq ft of carpet in under six hours — a task that would take four to five operators with standard uprights. For any facility where carpet coverage speed matters, the Tempest changes the math completely.

Beyond speed, the cordless design removes the two biggest friction points of large-area carpet cleaning with a corded machine: outlet management and cord hazards. In hotel corridors, conference halls, and airport terminals — where guest and staff traffic is constant — a trailing cord is an accident waiting to happen. The Tempest eliminates it entirely.

Key Features of the Tornado Tempest TV400-W26-U

4 Motors — Continuous Blow and Brush Simultaneously

The Tempest uses four dedicated motors — one for each functional system — running simultaneously: roller brush agitation, side brush, airflow, and debris transfer. This is fundamentally different from a single-motor upright where the same motor powers everything. The result is consistent brushroll RPM and consistent airflow regardless of carpet resistance, unlike single-motor machines where heavy carpet loads reduce both.

26″ Cleaning Path with Side Brush — 18″ Without

The side brush extends the effective cleaning path from 18″ to 26″ and handles edge cleaning along baseboards and wall joints — eliminating the need to follow up with a separate narrow vacuum for edges. Remove the side brush for tighter corridor spaces where the full 26″ path creates maneuverability issues.

LED Roller Brush Adjustment — Optimum Pressure Per Carpet Type

The roller brush height adjusts precisely with the help of an LED indicator light that signals when the brush is at optimum pressure for the carpet type being cleaned. Too light and the brush doesn’t agitate deeply enough; too heavy and it accelerates carpet wear. The LED feedback removes the guesswork for operators across different carpet pile heights in the same facility — standard carpet in corridors, medium pile in conference rooms, heavy pile in suites.

Auto-Clean Pre-Filter — Every 5 Minutes, Uninterrupted

The auto-clean pre-filter automatically purges accumulated dust every five minutes during operation — maintaining consistent airflow and filtration performance across a full 60-minute battery session without stopping. In a standard vacuum, a clogged pre-filter reduces suction progressively throughout the cleaning cycle. In the Tempest, the auto-clean function keeps the pre-filter clear and performance consistent from the first minute to the last.

PTFE-Coated Pleated Main Filter

The PTFE-coated pleated main filter provides the second stage of the 2-stage filtration system. PTFE (polytetrafluoroethylene) coating resists moisture and debris adhesion — the filter stays cleaner longer between service intervals and is easier to clean when it does need attention. PTFE-coated filters are standard in commercial environments where IAQ requirements apply.

5-Gallon Removable Dust Bin — With Optional Liner Bags

The 5-gallon dust bin removes from the machine without tools — pull, empty, replace. For facilities requiring hygienic debris disposal without operator contact with collected dust, the optional bin liner bags (Part #K28843580, 10-pack) line the inside of the bin so contents can be lifted out sealed and dropped directly in the trash. Required in healthcare environments and recommended for any IAQ-sensitive facility.

36V 7.5Ah Interchangeable Battery — 60-Minute Runtime, 81-Minute Charge

The 36V 7.5Ah lithium-ion battery (Part #K24450750) provides up to 60 minutes of runtime per charge — enough to cover 19,000 sq ft in one pass. The battery charges in 81 minutes with the K24450530 quick charger. The machine includes onboard storage for a second battery — snap a fresh battery in when the first depletes and continue without returning to a charging station. The battery is shared across the Tornado Cordless product line and is compatible with the Tornado Strike upright (TV190-W10-U) and Tornado Zephyr backpack (TV570-Q03-U) — facilities running multiple Tornado Cordless machines can share battery stock across the fleet.

56 dB — Clean During Occupied Hours

At 56 dB, the Tempest is extraordinarily quiet for a machine of its cleaning performance. Standard commercial uprights run 75–80 dB. The 20 dB difference is not subtle — it’s the difference between a machine that forces operators to schedule cleaning during off-hours and one that can run during morning check-in, during conference breaks, and in occupied healthcare waiting areas without disturbing guests, patients, or staff.

4-Year Parts / 2-Year Labor Warranty

The Tempest carries Tornado’s strongest warranty — 4 years parts and 2 years labor. Most Tornado commercial uprights carry 2 years parts / 2 years labor. The extended parts warranty reflects the Tempest’s positioning as a capital investment for commercial facilities, not a consumable cleaning tool.

What’s Included — and What Must Be Purchased Separately

The Tempest is sold as the machine only. Operating it requires two additional purchases:

Minimum operational cost: approximately $4,901 (machine + one battery + charger). For facilities cleaning 19,000+ sq ft per shift, a second battery ($399) is strongly recommended to allow continuous operation via the onboard battery storage.

Commercial Applications

• Hospitality — hotel corridors, ballrooms, conference rooms, lobbies during occupied hours
• Convention and event centers — rapid large-area carpet coverage before and between events
• Corporate office complexes — open floor plans cleaned during or after business hours
• Healthcare — carpeted waiting areas, corridors, and patient wings with IAQ requirements
• Education — auditoriums, libraries, and lengthy hallways
• Retail and shopping centers — high-traffic carpeted areas, minimal disruption to shoppers
• Airports and transit facilities — gate areas and concourses without cord hazards

Technical Specifications — Tornado Tempest TV400-W26-U

Feature Video — Tornado Tempest TV400-W26-U

Official Tornado feature video for the Tempest cordless carpet sweeper vac — covers key features, cleaning performance, and commercial applications.

Required Accessories — Order Together

The Tempest requires a battery and charger to operate. Both are available from Twin City Vacuum:

• Tornado 36V 7.5Ah Lithium-Ion Battery (K24450750) — $399.00 → — required to operate; onboard storage holds a second battery for continuous use
• Tornado 36V Quick Charger (K24450530) — $203.00 → — required to charge the battery; 81-minute charge time
• Tornado Tempest Bin Liner Bags (K28843580) — 10-pack → — optional; recommended for hygienic sealed debris disposal

Documentation

• Tornado Tempest Spec Sheet (PDF)
• Tornado Tempest Operations Manual (PDF)
• Official Tornado Tempest Product Page

Frequently Asked Questions — Tornado Tempest TV400-W26-U

Does the Tempest come with a battery and charger?

No — the battery (Part #K24450750, $399) and charger (Part #K24450530, $203) are sold separately. The machine will not operate without them. Both are available from Twin City Vacuum. Shop battery → | Shop charger →

How long does the Tempest battery last and how fast does it charge?

Up to 60 minutes per charge. The 36V quick charger recharges the battery in 81 minutes. The Tempest has onboard storage for a second battery — when the first depletes, swap in a fresh battery without returning to the charging station and continue immediately. A second battery is recommended for facilities requiring more than 60 minutes of continuous operation per shift.

Is the Tempest battery compatible with other Tornado Cordless machines?

Yes. The 36V 7.5Ah battery (K24450750) is shared across the Tornado Cordless product line and fits the Tornado Strike upright (TV190-W10-U) and Tornado Zephyr backpack vacuum (TV570-Q03-U). Facilities with multiple Tornado Cordless machines can pool batteries across the fleet.

What is the difference between the 26″ and 18″ cleaning path?

The side brush — which is included with the machine — extends the effective cleaning path from 18″ to 26″ and handles edge cleaning along baseboards. For most applications you’ll run with the side brush installed. Remove it in tighter spaces where the full 26″ width creates maneuverability issues.

Does the Tempest need bin liner bags to operate?

No — the bin liner bags are optional. The Tempest operates without them. The liners make debris disposal cleaner and more hygienic by allowing sealed removal of the bin contents. Recommended for healthcare and any IAQ-sensitive environment. Shop bin liner bags →

How loud is the Tornado Tempest?

56 dB — exceptionally quiet for a commercial carpet cleaning machine. Standard commercial uprights run 75–80 dB. The Tempest can operate in hotels, hospitals, and offices during occupied hours without disturbing guests or staff.

What warranty does the Tornado Tempest carry?

4 years parts / 2 years labor — the strongest warranty in the Tornado commercial lineup. Twin City Vacuum is an authorized Tornado dealer and our in-house technicians can service Tornado commercial equipment at our Crystal, MN location.

Is Twin City Vacuum an authorized Tornado dealer?

Yes. Twin City Vacuum in Crystal, Minneapolis, MN is an authorized Tornado dealer. All units are genuine, covered by Tornado’s full 4-year parts and 2-year labor warranty. Call us at 763-535-0770.

Buy the Tornado Tempest from Twin City Vacuum — Authorized Tornado Dealer

Twin City Vacuum in Crystal, Minneapolis, MN ships the Tornado Tempest TV400-W26-U to all 50 states with free shipping on orders over $30. Every unit is genuine, backed by Tornado’s industry-leading 4-year parts warranty, and supported by our in-house commercial vacuum technicians.

• ✔ Authorized Tornado dealer — genuine machine, 4-year parts / 2-year labor warranty
• ✔ 26″ cleaning path — 19,000 sq ft/hr commercial productivity
• ✔ 56 dB — cleans during occupied hours without disturbing guests or staff
• ✔ 4 motors — consistent airflow and brushroll performance
• ✔ Auto-clean pre-filter every 5 minutes — consistent performance across full 60-min session
• ✔ Battery shared with Tornado Strike and Zephyr — pool batteries across your fleet
• ✔ Battery (K24450750) and charger (K24450530) in stock at Twin City Vacuum
• ✔ Bin liner bags (K28843580) in stock at Twin City Vacuum
• ✔ Free shipping on orders over $30 to all 50 states
• ✔ In-house commercial vacuum service and repair in Crystal, MN

Questions before you order? Call 763-535-0770, email twincityvacuum@gmail.com, or send us a message.

Shop required accessories: Battery K24450750 ($399) → | Charger K24450530 ($203) →

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