Rhino Coffee Gear Square Knock Chute

The Rhino Coffee Gear Square Knock Chute is a commercial-grade, in-bench knock solution built for cafés, restaurants, and serious coffee setups where bench space and workflow efficiency matter. Unlike countertop knock boxes, the Square Knock Chute installs flush into your counter — dropping spent espresso pucks directly through to a waste bin underneath — keeping your entire bar surface clear during service.

In-Bench Design, Under-Counter Disposal

The chute drops through the bench and connects to whatever waste receptacle sits underneath — a bin, bucket, or purpose-built container. This under-counter disposal approach is how high-volume commercial bars eliminate the step of emptying a knock box mid-service, and it keeps the espresso station completely uncluttered. The chute opening measures 140mm x 150mm, with a rubber gasket surround of 168mm x 180mm that sits flush against the bench surface, protecting both the counter and the barista's hands.

Welded Knock Bar — Built to Last

The knock bar is welded directly to the sides of the chute rather than being removable, which reinforces the entire structure and makes it significantly more rigid than knock boxes with clip-in or press-fit bars. Rhino rate this as one of the toughest knock chutes on the market as a result. The bar is covered with a replaceable rubber sleeve that cushions portafilter impact and reduces noise — and when the sleeve wears out, it can be replaced independently without replacing the whole unit.

304 Stainless Steel Construction

The chute body is made from heavy-duty 304 grade stainless steel, the same standard used across commercial kitchen equipment. It handles the daily impact and moisture of a busy espresso bar without corroding, staining, or degrading. The rubber gasket surround is also replaceable, giving the knock chute a long working lifespan with minimal maintenance.

Professional Installation Required

The Square Knock Chute requires a cutout in the counter surface for installation — approximately 140mm x 150mm. It is designed for permanent or semi-permanent installation in a café bar or coffee workstation. For setups that don't require in-bench installation, the Rhino Deluxe Stainless Steel Knock Box is the countertop alternative.

Frequently Asked Questions

What is a knock chute and how does it differ from a knock box?

A knock box sits on the counter surface and collects spent espresso pucks in a contained bin that is emptied periodically. A knock chute installs flush into the bench and drops pucks directly through to a waste bin underneath the counter, removing the unit from the work surface entirely. This is the preferred solution in high-volume commercial bars where bench space is limited and workflow speed matters — there is no bin on the counter to work around, and grounds disposal is handled entirely out of sight below the bar.

Does the Rhino Square Knock Chute require installation?

Yes. It requires a cutout in the counter surface of approximately 140mm x 150mm for the chute to sit flush. The rubber gasket surround — which measures 168mm x 180mm — sits on top of the bench surface, protecting the edges of the cutout and providing a clean finish. It is designed for permanent or semi-permanent installation and is not intended to sit loose on a countertop.

What size is the knock chute?

The chute opening measures approximately 140mm x 150mm x 110mm deep (5.5" x 5.9" x 4.3"). The rubber gasket surround measures 168mm x 180mm and sits flush on the bench surface around the cutout.

Is the rubber sleeve on the knock bar replaceable?

Yes. The knock bar is welded to the sides of the chute for maximum structural rigidity, but the rubber sleeve that covers it is independently replaceable. Replacement sleeves are available separately, meaning the unit can be maintained over years of daily use without replacing the whole chute.

What is the knock bar welded rather than removable?

Welding the knock bar to the sides of the chute reinforces the entire structure, making it significantly more robust than designs with removable bars. This is one of the key reasons Rhino rate the Square Knock Chute as one of the toughest on the market — the welded construction eliminates a common failure point in knock boxes used under heavy commercial volume.

What waste bin does it connect to underneath?

The chute is designed to drop into a wide variety of multipurpose bins or containers placed below the counter. There is no specific bin required — a standard waste bin, bucket, or purpose-built grounds container will work, provided the opening below the counter is large enough to catch the chute output.