Dual Blade Roller Gate Handling Bulk Bag Chocolate

Valve Size
: 20” | 500 mm

Handling: Chocolate Pieces

Location: Chocolate Factory in Georgia, U.S.A.

Features: Rack and pinion style, hand wheel actuated roller gate. This gate utilizes 2 polymer tipped blades that close simultaneously and meet in the middle of the gate’s opening. The body is constructed of 304 stainless steel and the inlet is equipped with a round to square inlet transition. The valve is designed to be fully supported by inlet.

Details: The customer was looking for a way to pinch off a large bulk bag that was handling chocolate pieces. The originally inquired Vortex about an iris valve. Due to the size of the of the opening that was needed and some of the other application parameters, the Vortex Roller Gate was identified as the best solution. A standard Roller Gate design was modified to pinch off a bulk bag and fitted a hand wheel actuator that fit the customer’s tight space constraints. The gate was also designed to not have any pinch points, per the customer’s request.

View More Engineered Solutions

Roller Gate Handling Sugar


Blommer Logo

Union City, CA

Material: Cocoa butter, milk powder, sugar, cocoa powder and miscellaneous ingredients.

Application: Discharge blended product from the bottom of a dry mixer onto a steel belt conveyor.

Solution: Replace present knife gates, which leak material and bind up.

Valve: Vortex Roller Gate (Model: SA12-MG-WS1-RS)

Results: Following a visit from the Vortex Mobile Display Unit, Blommer ordered three Vortex Roller Gates. Each gate was equipped with manually adjustable, variable position controls. The controls allow the blade to actuate between the open position, a variable closed position, and a fully closed position. This control option is one of many that customers may utilize to meter the flow of product through a Vortex valve.

The gates were installed in fall 2003. Blommer Chocolate was so satisfied, they ordered another that was installed in spring 2004.

The gates have yet to bind up or leak material, and are easy to clean. The adjustable position controls allow personnel the ability to easily control the flow of material onto the belt conveyor.

Blommer plans to replace other knife gates in their facility with Vortex gates.