Jumbo glass cutting
The jumbo glass (generally 6000x3321) are used in middle size or important glaziers and mainly in countries where there are float plants able to manufacture such glass and where are available lorries able to deliver them.
These large glass sheets allow the delivering for larger products, to optimize the cutting, to reduce the CHUTES and to improve the productivity.
it is possible to have only a cutting table, but also other tables (loading table, breaking table) allowing to use the cutting table with a better productivity.
Like in the half jumbo cutting table the table is generally proposed with:
A horizontal surface covered with carpet (more often tilting to make easier the loading) and supplied with air cushion to make easier the glass movement on the table. Moreover for the breaking the cutting table is equipped with 2 or more breaking bars, and some control pedals (to manage the air cushion, the breaking bars…)
A cutting bridge
A numerical control (CN) which drives the cutting bridge and where the operator has the possibility to enter the data for the glass cutting.
An software
This software can be supplied by the cutting table supplier or by a software company specialized on software for glazier for the more important glaziers.
All the data concerning the cutting are generally entered before to start the cutting, the software managing the cutting optimization depending the glass thickness and dimensions to cut for the day. Very often the software manage also the glass stock.
The working cycle is:
-Entering (directly on the table or from an office) for the cutting data in the numerical control.
-Glass loading on the cutting table
Automatic cutting
Breaking
Unloading
The slow step for the glass cutting is the breaking and this job has to be done by a skilled operator.. For the glaziers having important cutting to carry out (mainly for thickness over 10 mm) a breaking table is added after the cutting table where one or two operators can break the glass during the glass cutting on the first table. The glass is sent on the breaking table with belts or using the air cushion.
To cut Low e glass another step is necessary, the low e grinding. This step done on the cutting table before to cut the glass is done by an option (called Low e grinding option) directly on the cutting table. On the glass periphery the Low e part is removed to allow for double glazing to have a good adhesion for the butyl.
The safety rules require a safety perimeter around the table when the cutting table is working without any people inside. It is done with photo cells or fences.
