Float glass production cutting technology

Dynamic cutting technology

Flat glass production: Cold End

Grenzebach’s cutting and breaking technology transforms the continuous glass ribbon into the format required. It allows you to cut glass to size with very minimal product loss.

“Cutting technology lies at the heart of the cold end of a flat glass production line. Combined with the breaking system, the cutting heads, force-regulated controls and an intelligent optimization system form a superbly efficient unit. ”


James Shang CEO at Grenzebach Machinery (Jiashan) Ltd.

Perfectly combined

Cutting technology equipment

Float glass cutting tool

Cutting tool with integrated force sensor & CFC-250mag

Longitudinal and cross cutters with force-controlled cutting heads, which are adapted to handle thin, regular or thick glass, score the glass. Cutting pressure is applied precisely based on glass thickness and stress in the glass and by using closed-loop control.

Float glass cutting bridges

Cutting bridges

The multi-longitudinal and cross cutters can make various formats, even with very small sheets of glass. By changing dynamically to different cutting bridges, formats are produced continuously without any interruptions.

Float glass snapping


We have a broad portfolio of solutions for cross, center or lengthwise breaks so that the edges are the best possible quality.

Customer orientation in float glass production

“At the same time, it’s up to you whether production is to focus on quality or quantity.”


Statement by Markus Gruber on glass
Markus Gruber Senior Vice President Business Unit Glass at Grenzebach Maschinenbau GmbH

Short cullet plate

Good to know

Defects in the glass ribbon, such as inclusions, bubbles or stones, force glass manufacturers to dispose of the cullet (waste glass) in a cullet bin. Depending on the roller pitch, the shortest cullet plate was 500 mm or 19 11/16 inches long. Thanks to Grenzebach’s short cullet plate system, this figure can be cut to 170 mm or 6 11/16 inches. This is possible because the cullet is disposed of directly after the break roller.

Combined with our Float Scan Edge digital camera and look ahead cutting optimization system, we can offer function-rich cutting technology. All in the interests of superior precision, quality and yield.

Camera system Float Scan Edge digital

Camera system Float Scan Edge digital FSE-d


The Float Scan Edge system extends over the complete width of the glass ribbon - and detects with two single cameras constantly providing useful information:

  • Position of the glass ribbon and its outer edges
  • Glass ribbon drift and wander
  • Inner and outer edge position of the knurl marks
  • Evaluation of the knurl mark width
  • Evaluation of the gross and net glass ribbon width
  • Optical distortion in position and expansion of the top roller and edge
More about FSE-d
New control and operating concept

New control and operating concept

Lower workloads, higher availability

Our high-performance solution can plan production, manage orders and guarantee that all processes are ones that are efficient and can be counted on.

Plant operation and control system
Service for the glass industry


The engineering and commissioning of a new system are the first steps towards a successful glass line. Professional service in daily business is just as important - which is why we are at your side throughout the system’s entire life cycle.


Technology & equipment

For North America

Your contact person: Ron LaBorde

You would like to know what Grenzebach glass solutions can do for you? Call or write us about your challenge. We look forward to hearing from you!

For all other regions

Your contact person: Florian Nagler

Collaboration means dialogue. We support you no matter where you are in the world. Contact us. Send us your enquiry.

Florian Nagler Grenzebach