System Components

On this page you will find descriptions and details of our dust collection system components, which each play a role in the system. There are three primary components that complete the network of components: the System Controller, the Blast Gates, and Sensors. Additionally, these dust collection system components are connected using high-quality system cables to ensure efficiency throughout the system.

Look through the information below to learn more about each component, however, if you have questions, contact us.

Dust Collection Component: System Controller

dust collection system controller module
System Controller

Each system uses only one System Controller. This dust collection component is to control the central dust collector. When a gate signals the Controller that a tool is turned on, the Controller then turns on the collector by means of a power relay.

In addition, the collector may be turned on or off with a manual switch on the Controller. System power is indicated by a green LED and collector activation by an amber LED.

The Controller has a user-selectable voltage of either 115VAC or 230VAC, single phase and can handle up to a 1 horsepower, 115 Volt or 2 horsepower, 230 Volt collector.

Finally, there is an overload detector should the gate network become shorted or overloaded. An additional fuse is in place to protect the electronics of the entire system.

Dust Collection Component: Blast Gates

dust collection system 4 inch blast gate
4-inch Blast Gate

Blast Gates are inserted into the duct line between the tool to the central collector and is where the most control and decision making takes place. This dust collection part is connected to the Sensor, the System Controller and the next downstream Blast Gate in the system. Blast Gates’ primary duties are to open and close the duct line from the tool to the central collector and signal the System Controller to turn the collector on and off.

When the Sensor signals the Gate that the tool has been turned on, then the Gate’s motor opens the duct line. This is done with a motorized rotating blade under the control of a microprocessor in the Gate electronics. As the Gate is opening, it then signals the System Controller to start the collector.

The Sensor signals the Gate when the tool is turned off. After a short 7 second delay, the Gate then tells the System Controller to turn off the collector after which the Gate closes. This delay allows any leftover chips in the duct to be collected.

Additionally, there is a jam detection function built into the Gate. Should any debris block the Gate from either opening or closing, then the Gate will stop, reverse and try to clear the jam. If, after three attempts, the jam is still present, the Gate will simply freeze. After the jam is removed, the Gate can be reset by unplugging the Network cable from the System Controller and re-inserting the plug. The Gate will then auto-close and be, once again, ready for use.

Click here to download dimensioned drawing of the blast gate.

Electrostatic discharge can sometimes cause erratic gate operation. This easily solved during the installation of the gates. Please refer to the Static Control link on the useful links page.

Dust Collection Component: Sensors

Each machine tool will have an associated Sensor. This dust collection part detects the magnetic field generated by the current flowing in the machine’s power cable when the tool is on.

Sensor with clip removed
Sensor with Clip

Each Sensor is attached to the machine’s power cord with a clip. There is no need to do any electrical connections to the tool’s power wiring.

The attaching clip will accommodate various sizes of power cords. In addition, installation takes less than a minute and no tools are needed.

Each machine’s sensor is connected to the associated Blast Gate with a six foot cable that is supplied. The cable’s connectors are the familiar telephone type that simply clips into the jacks on the sensor and gate.

Protected by US patent 7,714,567

Additional Dust Collection Components: Accessories

A variety of accessories and other dust collection system components, which are available to expand or enhance your system.


4 inch gate expander with blast gate4-inch Gate Expansion Kit w/ Sensor

GG1004A – The STARTER KIT comes with three gates and sensors, however, if you have more than three machines on your system, you can add as many additional gates as required. This kit includes one GATE, one SENSOR and one each SYSTEM CABLE and SENSOR CABLE.


4-inch blast Gate Expander with Manual Switch4-inch Gate Expansion Kit w/ Manual Switch

GG1006B – If you have a floor sweep or perhaps a chop saw where a sensor isn’t the right solution and would rather have manual control, we therefore offer a kit which includes a GATE, MANUAL SWITCH and one each SYSTEM CABLE and SENSOR CABLE.


Sensor splitter kitSensor Splitter Kit

GG1008A – The Splitter Kit affords you another degree of gate control, giving you two (or more) ways of controlling the Gate. To include, the kit lets you have two Sensors, two Manual Switches or one each- Sensor and Manual Switch. The Splitter accepts three sensor cables- one each for a Sensor(s) or Manual Switch(s) and the Gate sensor input.

You can have as many Sensors and/or Manual Switches as you want controlling a single gate. Just add additional splitters. You will need N-1 Splitter Kits where N is the number of Sensors and Manual Switches you need. The splitters are daisy-chained together with the short cables that are included in each Splitter Kit. Just order the additional Sensor or Manual Switch Kits that you will need.

NOTE: Gate not included


Motor contactor3 Pole Motor Contactor

GG500A, GG500B and GG500C – The SYSTEM CONTROLLER included in the STARTER KIT supports single phase motors, either 115VAC up to 1HP or 230VAC up to 2HP.

The GG500A MOTOR CONTACTOR accessory supports larger single and 3 phase collector motors up to 5HP. The CONTACTOR has a 115VAC coil.

The GG500B MOTOR CONTACTOR includes a thermal protection module for 3 phase motors. The coil voltage is 115VAC.

The GG500C MOTOR CONTACTOR includes a thermal protection module for 3 phase motors. The coil voltage is 230VAC.


Parallel Gate KitParallel Gate Kit

GG1005B – Two 4 inch gates, which can be connected in parallel, are the equivalent of a single 6 inch gate. Both gates open and close simultaneously to support larger ducted machines. The kit contains two 4 inch GATES, one PARALLEL GATE ADAPTER module, one SENSOR, one 6′ SENSOR CABLE, one 2′ GATE NETWORK CABLE and two 18″ SENSOR CABLES. 6 inch ducting is “wye’d” into the gates at both the inlet and outlet sides. Either a SENSOR or MANUAL SWITCH may be used. Although the kit includes a SENSOR, however you can let us know your preference when ordering.

NOTE: Ducting is NOT included.


Motor controller adapter

Motor Controllor Adapter

GG900A – The MOTOR CONTROLLER ADAPTER emulates the remote ON/OFF switch module that usually accompanies the dust collector. When properly installed, your automatic dust collection system operates without any intervention from you. The Grngate SYSTEM CONTROLLER  is rated up to a 1HP, 115VAC or 2HP, 230V motor. However, some collectors have larger motors. Our MOTOR CONTROLLER ADAPTER bridges the gap from the Grngate SYSTEM CONTROLLER to a dust collector having larger motors using a motor controller.

Click the images to enlarge

"I'm finally finishing up my shop and am about to pull the trigger on my ductwork and auto gate system...my ducting will be 6" to be within close proximity of my tools, and then necked down to 4" so I plan to use 4" gates."