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Powermatic 4" Aluminum Blastgate provides a 4 inch diameter airflow control point in a dust collection run, so you can open or close suction to a specific machine during woodworking or machining tasks. The aluminum construction creates a light but solid body that handles typical shop duty while keeping weight down on overhead or wall-mounted duct branches. A sturdy steel gate slides through the body to open or shut the line, giving you a defined open-or-closed position instead of relying on improvised dampers. The locking knob on the gate lets you hold a chosen position, so the setting stays put while machines cycle on and off. As part of the JET Tools dust collection line in the Machinery Dust Collectors class, this blastgate fits directly into a dust collection layout centered around JET dust collectors.
This 4 inch diameter aluminum blastgate for JET dust collectors seats into dust collection ductwork at machine branches, so it becomes the on-site control point between the main line and each tool. The aluminum body works with both metal and plastic ductwork, so existing systems using either material can integrate the gate at suitable locations. Because the gate is part of the Machinery Dust Collectors category, it aligns with typical dust collection layouts that route 4 inch drops to individual machines. The universal fit design means the blastgate can accompany all dust collectors, so a single style can be used as you expand or reorganize dust collection lines while keeping parts consistent.
This aluminum blastgate for JET dust collectors installs directly into 4 inch duct runs that feed individual woodworking or machining stations, so each drop line gains its own dedicated control point. When used with metal ductwork, the aluminum body presents a like-material connection surface, which helps maintain alignment along straight or gently curved dust collection paths. When used with plastic ductwork, the same body still provides a stable housing for the steel gate, so the shutoff point sits at a consistent location regardless of duct material changes. The universal fit design allows the 4 inch aluminum blastgate to accompany all dust collectors, so branch control can be standardized even when the main collector units differ by model or age within the same facility.
The aluminum construction gives the blastgate body rigidity while keeping weight moderate, so it supports repeated handling when operators access overhead or wall-mounted lines to adjust airflow. The steel gate slides within this aluminum frame, and that material pairing creates a solid moving interface, so opening and closing feels consistent over time as dust collection demands change between machines. The locking knob on the gate allows the operator to set a chosen position, so partial-flow settings stay stable during long sanding, planing, or cutting runs without drifting from vibration. Because the blastgate regulates airflow to a given machine, it becomes central to directing suction where it is actively needed, which can help focus dust collection capacity on active tools. All plastic fittings and hoses used with this system must be grounded against static electrical build-up, so the overall dust collection layout can address static concerns when plastic components are part of the run.
The Powermatic 4" Aluminum Blastgate has a 4 inch diameter opening, so it matches common dust collection duct size used for many woodworking and machinery connections.
The blastgate uses a sliding steel gate in the aluminum body to regulate the airflow to a given machine, so you can open, close, or partly open the line as needed.
The 4 inch aluminum blastgate may be used with metal or plastic ductwork, so existing duct systems in either material can integrate this airflow control point.
The aluminum blastgate is designed as a universal fit that accompanies all dust collectors, so it can be used across different collector brands in a shop.
The locking knob holds the steel gate position, so once you set an airflow level at a machine, that setting remains steady during operation.
All plastic fittings and hoses must be grounded against static electrical build-up, so static can be managed when plastic components are used in the dust collection line.
The Powermatic 4" Aluminum Blastgate combines a 4 inch diameter body, aluminum construction, and a steel gate to create a focused airflow control point in a dust collection run. Its ability to regulate airflow to a given machine lets you direct suction to active tools instead of leaving multiple lines open. Because the aluminum blastgate may be used with metal or plastic ductwork, it adapts to different shop duct materials without changing the core control hardware. The universal fit that accompanies all dust collectors means one blastgate style can serve across various collector units as layouts evolve. Use the JET Tools JT9-JW1142 part to add precise branch control wherever 4 inch drops feed woodworking or machinery stations.