SDC Scientific Dust Collectors 7,500 CFM Supersonic Pulse-Jet Baghouse - Model SPJ-64-X4B6 - No-Venturi Design

Scientific Dust Collectors SPJ-64-X4B6 Baghouse System

Capacity: 7,500 CFM | Cleaning: Patented Supersonic Pulse-Jet | Includes: Cyclone Pre-Cleaner

Overview

For sale is a heavy-duty Scientific Dust Collectors (SDC) SPJ-64-X4B6 baghouse system. Built for high-volume industrial environments, this unit features SDC’s world-renowned Supersonic Nozzle cleaning technology. Unlike generic baghouses that use restrictive internal venturis, the SPJ series utilizes a patented nozzle design that induces higher volumes of cleaning air at lower pressures, significantly extending filter life and reducing energy costs.

This specific system was configured for high-abrasion environments (Aluminum Oxide/Stainless Steel) and includes a cyclone pre-cleaner, which removes heavy debris before it ever reaches the bags—massively reducing maintenance and filter blind-over.

Key Sales Features & Advantages

• Patented Supersonic Nozzle Cleaning: SDC’s unique "no-venturi" design allows for 3x the induced cleaning air compared to standard collectors. This results in a more thorough cleaning of the entire bag length and lower system pressure drops.
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• High-Side Baffled Inlet: Features a built-in dropout section that slows incoming air, allowing heavy particles to fall directly into the hopper, protecting the filter media from direct impact and abrasion.
• Integrated Cyclone Pre-Cleaner: This system comes with a dedicated cyclone that serves as a first-stage filter. This is a critical upgrade for abrasive dust, ensuring the baghouse only handles the finest particulates.
• Superior Bag Spacing: Designed with 3" spacing between bags—twice the industry standard—to prevent dust re-entrainment and "bridging" during the cleaning cycle.
• Heavy-Duty 12-Gauge Construction: Built with hot-rolled reinforced steel and designed to withstand high static pressures (± 20 IWC). This is a "buy it for life" industrial-grade chassis.
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Technical Specifications

• Model: SPJ-64-X4B6 (64-Bag System)
• Serial Number: 5-10327 (Year: 1990)
• Airflow: 7,500 CFM (Estimated with included 20 HP Blower)
• Filter Media Area: 448 sq. ft.
• Blower: 20 HP Axial Fan (Remote Mount)
• Pulse System: Solid-state timer in NEMA 4 enclosure; requires 90–100 PSI clean/dry air.
• Discharge: 60° Steep-slope hopper with square flanged discharge for airlock or drum adapter.

Included with Sale

• 20 HP Axial Blower Fan
• High-Efficiency Cyclone Pre-Cleaner
• Full Set of Wire Cages
• NEMA 4 Control Panel with Pulse Timer

Condition Note

Condition: Good/Used. System has been professionally decommissioned and is ready for transport. The interior plenum and supersonic nozzles have been inspected and are in operational condition. The heavy-gauge steel housing shows minimal wear for its age, typical of a well-maintained facility.

Paired with Cyclone

Includes Mounting Flanges for Ducting

Includes Air Silencer