8" Axial AC Plastic Blower w/ Compact Canister & Ducting

Allegro 8" Axial AC Plastic Blower with Compact Canister & Ducting — Lightweight Confined Space Ventilation

The Allegro 8" Axial AC Plastic Blower with Canister and Ducting is a purpose-built ventilation system designed for contractors and safety professionals working in confined spaces, construction sites, utilities, and refinery environments. Powered by a 1/3 HP motor and housed in a durable polyethylene shell, this system delivers 831 CFM of free air flow, dropping to 709 CFM through one 90° bend and 586 CFM through two 90° bends. The quick-connect clipping system allows tool-free attachment of the canister to either the intake or output side of the blower, enabling both extraction and ventilation modes. Available with 15', 25', or 50' ducting options, the unit is engineered for rapid deployment and compact storage on the job site.

Technical Specifications

Available Items

Note: CFM values calculated using 15' x 8" ducting. Free Air CFM calculated at the blower. The 9533-15 and 9533-25 models feature the compact canister, which is the lightest and shortest canister in the industry. The 220V "E" variants comply with relevant European product safety directives but do not meet CSA C22.2 No. 113 requirements for Fans and Ventilators.

Compared to similarly sized axial blowers, the Allegro 9533 series stands out with its tool-free quick-connect canister system that converts between extraction and ventilation modes without additional hardware. The compact canister on the 15' and 25' duct models is claimed to be the lightest and shortest in the industry, reducing fatigue during transport and setup. The polyethylene construction provides corrosion, UV, and chemical resistance that metal-housing alternatives cannot match in harsh or wet environments.

Key Features & Benefits

Quick-Connect Tool-Free Canister System

The clipping system allows workers to attach the canister to either the intake or output side of the blower without any tools, enabling rapid switching between extraction and ventilation modes. This eliminates the need for separate equipment and reduces setup time on the job site.

Compact, Lightweight Design

The compact canister on the 9533-15 and 9533-25 models is the lightest and shortest in the industry, and the blower unit itself weighs only 17 lbs. Reduced carry weight lowers worker fatigue when transporting equipment to and from confined space entry points.

Polyethylene Housing — Corrosion, UV, and Chemical Resistant

The blower and canister assembly are constructed from polyethylene, making the unit resistant to corrosion, UV exposure, and chemical contact. This durability is critical in refinery, utility, and construction environments where exposure to harsh substances is common.

Built-In Carry Handles and On/Off Switch

Both the blower and canister feature molded-in carry handles for easy one-person transport. The built-in On/Off switch and bottom enclosure protecting electrical components add to the unit's practical, job-site-ready design.

Ducting Stores Inside the Canister

The ducting stores conveniently within the canister, keeping the system self-contained and reducing the risk of lost or tangled duct on busy job sites. This integrated storage approach supports faster pack-up and deployment between locations.

US and International Wiring Configurations Available

The blower is available in standard 115V–230V AC, 50/60 Hz configurations as well as 220V/50 Hz "E" variants for international use. This flexibility allows contractors working across different regions or on international projects to use the same blower platform.

Triple Certification — UL, CSA, CE

The standard (non-E) models carry UL Recognized, CSA Certified (C22.2 No. 113), and CE Certified status, meeting the compliance requirements for confined space ventilation equipment across North American and European markets. Certified equipment gives safety managers confidence that the blower meets recognized product safety standards.

Common Applications

Confined Space Ventilation

The 9533 series is specifically designed for confined space entry operations, providing fresh air supply or hazardous gas extraction in manholes, vaults, tanks, tunnels, and similar enclosed environments.

Construction Site Ventilation

Used on active construction sites to ventilate enclosed work areas such as below-grade excavations, utility corridors, and partially enclosed structures where air quality must be maintained.

Utility Work

Ideal for utility crews entering underground vaults, conduit runs, and service tunnels where atmospheric hazards may be present and continuous ventilation is required during the work period.

Refinery and Industrial Applications

Suitable for use in refinery environments where chemical-resistant, durable ventilation equipment is needed to support safe entry into process vessels, storage tanks, and piping systems.

Extraction (Suction) Mode

By attaching the canister to the intake side of the blower, the unit functions as an extractor to remove contaminated air, fumes, or gases from a confined space prior to or during worker entry.

Compatible Materials

• Standard 8" flexible ducting (15', 25', or 50' lengths included with canister models)
• Compatible with Allegro 8" ducting accessories and inline booster blowers for extended duct runs
• Designed for use in environments with exposure to chemicals, UV, and corrosive conditions due to polyethylene construction

Product Documents

• Product Sheet — Allegro 8" Axial AC Plastic Blower with Canister & Ducting
• Allegro Ventilation Blowers Linecard

Frequently Asked Questions

Q: Can this blower be used for both ventilation (supply) and extraction (exhaust)?
A: Yes. The quick-connect clipping system allows the canister to be attached to either the output side for ventilation or the intake side for extraction, without any tools required.

Q: What is the airflow output of the 8" Axial AC Plastic Blower?
A: The blower delivers 831 CFM of free air, 709 CFM through one 90° bend, and 586 CFM through two 90° bends, with CFM values calculated using 15' x 8" ducting.

Q: Are international voltage versions available?
A: Yes. "E" suffix models are wired for 220V AC/50 Hz for international use. Note that these variants do not meet CSA C22.2 No. 113 requirements for Fans and Ventilators.

Q: What ducting lengths are available with this system?
A: The system is available with 15' (4.57 m), 25' (7.62 m), or 50' (15.2 m) of ducting. The 15' and 25' models include the compact canister; the 50' model includes the standard canister.

Q: Is the blower available without a canister?
A: Yes. Order number 9533 (or 9533-E for the international version) provides the 8" Axial AC Plastic Blower as a standalone unit without canister or ducting, weighing 17 lbs.

Q: What certifications does this blower carry?
A: Standard (non-E) models are UL Recognized, CSA Certified (meeting CSA C22.2 No. 113 for Fans and Ventilators), and CE Certified. The 220V "E" variants comply with relevant European product safety directives but do not meet CSA C22.2 No. 113.