Share on facebook
Share on linkedin
Share on pinterest
Share on twitter
Share on tumblr
Share on reddit

uPVC Window Door Processing Manual

Part 1 uPVC Profile Cutting

This is a uPVC window door processing manual. And, it is mainly introduced to you how to make the uPVC window door. Also, give you full details of introductions.  In addition, this part mainly introduces the uPVC window frame profiles cutting.

In the uPVC window making process, the first step is the uPVC window frame profiles cutting.

The accuracy of the uPVC window frame profiles cutting has a very important effect on the quality of the uPVC windows and doors.

To ensure good performance of the uPVC window, we should follow some processing operations and standard requirements strictly. And also use the right uPVC window door machine.

1. The reference size for uPVC window making

What size should we reference for the uPVC windows? Normally we have three mainly references:

  • Firstly, Design drawings
  • Secondly, Order requirements
  • Thirdly, the hole size on the wall which installing the uPVC windows and doors.

2. Frame and sash cutting

>>> Which type of cutting machines do we need?

There has a variable choice, according to your needs and budget. Below are some upvc profile cutting machines for your reference.

>>> Cutting uPVC Profile ​

Firstly, as one of the uPVC windows manufacturers, we should according to the window size and processing requirements to cut the uPVC profiles.

Meanwhile, we should also notice that if the double head saw 06 includes the welding allowance.

If it has a welding allowance, we should cut the uPVC profiles directly.

If the machine does not have a welding allowance, we should add the welding allowance during cutting uPVC section.

In addition, normally the welding allowance is 3mm for each end.

Please note that our Moxisys uPVC cutter does not include the welding allowance for the uPVC section.

>>> Case study

uPVC windows designs size 1200mmX1500mm.

The machine do not include welding allowance.

So cutting uPVC window frame should according to the below uPVC windows profile sizes:

1200+3X2=1206mm………….2pcs

1500+3X2=1506mm…………..2pcs

When cutting upvc window frame, we should keep the saw blade and operation platform dry and clean. Otherwise it will affect the after-processing performance.

After cutting upvc window frame, we should check the first piece right now. And talk some samples from the cutting PVC profile.

All the parts must meet the following technical requirements:

  • Firstly, uPVC section profile length tolerance ±0.5mm.
  • Secondly, each ending angle tolerance ±0.5°.
  • Thirdly, cutting surface and the angle of uPVC section should not affect the welding quality.
  • And the last, the after-cutting surface should keep dry and clean.
After Cutting Surface

3. Mullion cutting

>>> Which type of cutting machines do we need?

Normally we cut the mullion by mullion saw or other upvc profile cutting machines.

The upvc cutter is specially designed for the mullion cutting. One time could cut two mullion end faces.

High efficiency with high accuracy.

>>> Cutting uPVC Profile

According to the uPVC window design size to cut the mullion.

After that cutting, we should also check the first piece. At the same time, we should also take some samples to check.

Let’s take a example to explain.

>>> Case Study

Take Moxisys 60 casement frame profile MBS-60ZTD for example.

60 mullion
Mullion Cutting Drawing

Above are the 60 series uPVC profile designs.

All the cutting parts also must meet the following technical requirements:

  • Firstly, make sure after the first cutting, the ending angle is 45 degrees, tolerance is ±0.5°.
  • Secondly, make sure after the second cutting the ending angle is 90 degrees and tolerance±0.5°.
  • The tolerance between ending tip and the centerline is ±0.5mm
  • The mullion length should also meet design requirements and the tolerance ±0.5mm
  • Profile cutting surface and the angle should also not affect the welding quality.
  • Meanwhile, the welding surface should keep dry and clean.

4. The V-shape cutting

>>> Which type of cutting machines do we need?

Normally we use one of upvc profile cutting machine, the v notch cutting saw to cut the V-shape profile.

>>> Cutting uPVC Profile ​

During cutting the v shape profile, we should much care for the depth on the small surface.

The depth equals the half-width of the mullion profile small surface minus the welding allowance.

After that cutting, we should check the first piece. And take some samples to check.

Let’s see the example below.

>>> Case Study

Take Moxisys 60 casement frame profile and mullion for example.

uPVC window making machine V Cutting Drawing
60 frame
60 mullion
upvc window making - Mullion And V Drawing

Normally V shape on the mullion small surface, In addition, the depth is 36/2-3=15mm

In addition, all the cutting parts must meet the following requirements:

  • After that cutting, the v shape depth tolerance is ±0.5mm.
  • The surface of profile cutting and the angle should not affect the welding quality.
  • The welding surface should also keep dry and clean.

5. The Calculation Case Study

The calculation mainly considers three factors:

  • the uPVC window dimensions
  • the lapping size between frame and sash.
  • the welding allowance.

And according to the above data to calculate the cutting size.

>>> Casement uPVC Window Size Calculator

What is the overlap size between frame and sash?

When we put frame and sash together, there have some parts overlapping.

This part we called overlap size. And normally this size ≥8mm.

Take Moxisys 60 series casement profile for example.

60 Casement Caculation
Item Length Pcs
Frame height Design Height + 3×2 2 pcs
Frame width Design Width + 3×2 2 pcs
Mullion height Design Height +(mullion profile big surface-frame profile big surface) x2 + 3×2 1 pcs
Sash height Design Height/2 – (frame profile small surface – overlap size)
– (mullion profile small surface/2-overlap size) +3×2
4 pcs
Sash width Design Width – (frame profile small surface – overlap size) x2+3×2 4 pcs

Note: Above calculation of upvc window profile sizes just for your reference.

Because the uPVC casement window profile has many series,  and the mullion section size also different.

So in the mullion cutting processing, we should also according to the profile do some changes accordingly.

>>> Sliding uPVC Window Size Calculator

In this part, We set the overlap size is 8mm.

Take Moxisys 80 sliding series for example.

80 Sliding Caculation
Item Length Pcs
Frame height Design Height + 3×2 2 pcs
Frame width Design Width + 3×2 2 pcs
Sash height Design Height – (frame height – lapping size) x2+3×2 4 pcs
Sash width Design Width/2 – (frame height – lapping size) – (sash profile big surface -interlock thickness) /2 +3×2 4 pcs
Note: Above calculation of upvc window profile sizes just for your reference.

Moreover, if you have any questions or requirements feel free to let us know. You could chat with us or leave a message below:

You could also find us on social:

Scroll to Top
X
  • No products in the list

This website uses cookies to ensure you get the best experience on our website.