Four wins

How glazing bead saws for sash elements can cut twice as much as before without losing time

Of course, it may happen from time to time that faults may creep into production, says Lars.

As a window producer in the second generation he knows the ropes. Without having to think twice, he could tell us a couple of error sources that happen quite often.

Of course, it’s good when machines perform some sort of activities to reduce error sources, he says.

We agree with Lars. However, there is one processing step where always something can go wrong - sawing of glazing beads, or to be more precise, during the sorting process of glazing beads. So far it was only possible to cut only two glazing beads at the same time. But why and how can this cause any faults?

Well, first of all because the glazing bead saw is provided with two tracks. However, every window manufacturer has to cut four sash elements. Consequently: Two sawing processes for four glazing beads.

Lateron the operator should not get confused. But every now and then the same question arises: „Which of the two pairs of glazing beads do fit together?“ That‘s where mistakes are inevitable.

Four wins

Up to now, the following was true: Glazing bead saws are only available for two glazing beads.

That’s the reason why we left this principle behind

And it goes like that: The glazing beads are still clamped directly at the cutting spot to ensure exact cutting of the glazing bead gasket. As four glazing beads are required per window element, the following applies from now on:

The four glazing beads are sawn in one single cut with our new four track glazing bead saw.


Positive consequences for the operator:

1. One working step less
2. No mistakes anymore during sorting: On sorting in a compartment trolley for glass, the operator holds all four glazing beads in his hand. No mess-up anymore!

-> No more mixing-up of sheds. Thus the mix and match error source is eliminated!

By simultaneous cutting of four glazing bead rods it is ensured that

● the right glazing beads remain together ✅
● no mess up ✅

But not only that! Compared with the previous two track glazing bead saw the „four wins“ saw is
● faster ✅
● more flexible ✅

Dimensions for the four track glazing bead saw are pre-determined by the fitting electronic length stop. Positioning is done step by step according to dimensions. Finally the glazing beads are clamped by the operator.

All in all, this sounds pretty good.
But wouldn’t it be really nice if the machine could also handle different glass thicknesses?
Good comment - but that’s possible!
In terms of different glazing bead thicknesses, our glazing bead saw is a professional

Glazing beads can be cut without any problems to comply exactly with the corresponding glass thickness.
How does it work? How are the different angles set?

First of all:

Motorized adjustment is done through a suitable electronic length stop.

  • Clamping is effected by a motor.
  • Automatic positioning according to dimension of glazing bead via motor.
  • Glazing bead saw is controlled by an electronic length stop.
  • Positioning of length dimensions and automatic adjustment of the motor for glass simulation

The 45° cutting angle to be done must be stored and we have meanwhile revised the programme of  the electronic length stop. From now on the window production software is also linked online.

The following applies now: For the operator there are different options to work with the length stop providing him with more flexibility.

Four possibilities to enter the lengths of glazing beads:

  1. Providing the length via network (now linked online)
  2. Manual entering (Attention: Possible error source)
  3. Dragging from USB stick
  4. Direct measuring on sash through measuring arm with transfer to the electronic length stop

Moreover, we integrated various correction possibilities in the length stop. The profile stored there can be provided now with correction values. That’s the way how the operator can conceal profile tolerances.


Further advantages of the four track glazing bead saw:

  1. No tool change required in the system
  2. Length and angle corrections possible through axes
  3. Glass simulation for exact cutting angle and various setting options for the cut at the glazing bead gasket.

Little space required - more tracks do not imply more space requirements

The size of the glazing bead saw remains unchanged. Low space requirement both for the two track and the four track glazing bead saw!

5. Special exhaust - less filth - fully automatic

A special exhaust is integrated in the glazing bead saw. What for? For direct exhaust of chips. Moreover, the four remaining cutoff pieces are directly extracted towards the top so you will have a spick-and-span workplace and an optimally protected saw blade.

6. Glass thickness is simulated via motor to ensure an exact cut. Easy handling of sound insulation glass is possible too.

Additional information regarding sound insulation for glass can also be transmitted. So far it was not possible to machine the extra millimeter of sound insulation glass with glazing bead saws. Thanks to the motorized adjustment via electronic length stop it’s possible now to take this millimeter difference of glass into account.  

Necessary changes are transmitted through window manufacturer’s software. Then the window manufacturer can restart with another dimension. Optimal sawing of glazing bead is ensured that way.  

With our four track glazing bead saw GLS 200/S-4 and the corresopnding length stop LAEG 2600 you can cut four glazing beads at the same time in one clamping operation.

Now it’s possible to cut all glazing beads of a window sash in one run!


Products from the story

Compartment trolleys

To Product...

Glazing beards GLS 200/S-4

To Product...

Length Stops LAEG 2600

To Product...

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