How to Set Up an Aluminium & uPVC Window Fabrication Workshop
A complete step-by-step guide covering every machine you need, floor plan layout, power requirements, compressor sizing, and the most common mistakes new fabricators make. Whether you are starting your first workshop or upgrading an existing one, this guide covers everything from machine selection to production flow.
Machine Checklist
The machines you need depend on whether you fabricate aluminium, uPVC, or both. Aluminium fabrication needs 3 machine types. Full uPVC fabrication needs 5.
Makes mitre (45°) and straight (90°) cuts on aluminium and uPVC profiles. The first machine every workshop needs.
Cuts both ends of a profile simultaneously. Upgrade from single-head when production exceeds 20 windows/day.
Punches drainage holes, lock mechanism cutouts, and hardware mounting holes in aluminium and uPVC profiles.
Routes multi-point lock pockets, handle recesses, and espagnolette channels. Essential for any window with locks or handles.
Squares and cleans uPVC profile ends before welding. Mandatory for quality corner joints — skipping this step leads to weak, visible welds.
Fuses uPVC profile corners at 240–260°C to form a molecular bond. Required for every uPVC window frame. Seamless models eliminate the corner cleaning step.
Basic Aluminium Workshop (3 machines)
- ✓ 45/90 Degree Cutting Machine
- ✓ Pneumatic Punching Machine
- ✓ Copy Router Machine (manual or pneumatic)
Minimum floor space: 30–40 sq m. Power: single-phase 230V if using manual machines; 3-phase for pneumatic.
Full uPVC / Mixed Workshop (5 machines)
- ✓ 45/90 Degree or Double Head Cutting Machine
- ✓ Pneumatic Punching Machine
- ✓ Copy Router Machine (pneumatic recommended)
- ✓ End Milling Machine
- ✓ uPVC Welding Machine (single or two-head)
Minimum floor space: 60–80 sq m. 3-phase 415V required for welding machine and double-head cutter.
Workshop Floor Plan — 6 Zones to Lay Out
The most efficient window fabrication workshop arranges machines in the sequence that profiles flow through production — from raw material storage to finished goods. This minimizes material handling time and prevents cross-traffic between stations.
Material storage and incoming inspection area
Allocate 20–30% of floor space for raw profile storage. Profiles arrive in 6-metre lengths. Store them horizontally on padded racks to prevent bowing. Inspect profiles for straightness, surface damage, and coating quality before they enter production.
Cutting station
Position the cutting machine near the material storage area to minimize profile transport distance. Allow 1–1.5 metres of clearance on either side of the cutting machine for full-length profile handling. The cutting station produces the most chips and noise — place it away from customer-facing areas.
Punching and routing station
Position the punching machine and copy router close to each other — profiles typically visit both machines in sequence. Both machines are compact (under 1 square metre each) and can share a 2m × 2m working area. Compressed air lines should be permanently routed to this area.
uPVC end milling and welding station (uPVC workshops only)
The welding machine requires the most floor space and the most clearance — allow 2 metres on each side for frame handling. Position the end milling machine immediately adjacent to the welding machine since the two operations are always sequential. This station needs 3-phase power.
Assembly and glazing area
After fabrication, frames need hardware installation, glass beading, and glazing. This area should be clean, dust-free, and separate from the cutting station. Allow at least 15–20% of total floor space for assembly and finished product staging.
Finished goods and dispatch area
Finished window units need protected storage before dispatch. Allocate a corner of the workshop with foam padding on floors and walls, away from the cutting and welding stations where chips and sparks could damage finished surfaces.
Power Supply Requirements
Inadequate power supply is one of the most common causes of machine problems in new workshops. Plan your electrical infrastructure before the machines arrive — adding a 3-phase connection or a larger main breaker after installation is disruptive and expensive.
| Machine / Equipment | Supply Required | Connected Load |
|---|---|---|
| Single-head cutting machine | Single-phase 230V | 1.5–2.2 kW |
| Double-head cutting machine | 3-phase 415V | 3–4 kW |
| Compressor (2 HP) | Single-phase 230V | 1.5 kW |
| Compressor (5 HP) | 3-phase 415V | 3.7 kW |
| Copy router motor (1.3 kW) | Single-phase 230V | 1.3 kW |
| uPVC welding machine | 3-phase 415V | 3.5–5 kW |
| End milling machine | Single-phase 230V | 0.75–1.5 kW |
| Lighting and other loads | Single-phase 230V | 0.5–1 kW |
Install a voltage stabilizer on any machine that has electronic controls, a CNC system, or a digital display. Power fluctuations are the leading cause of premature electrical panel failure.
Compressor Sizing Guide
Small workshop (1–2 machines)
Copy router only, or punching machine only.
2 HP / 100-litre tank / 6–8 bar
Medium workshop (2–3 machines)
Cutting + punching + routing running concurrently.
3 HP / 200-litre tank / 8 bar
Full uPVC workshop (4–5 machines)
All pneumatic machines + welding machine + spray systems.
5 HP / 300-litre tank / 8–10 bar
5 Common Mistakes When Setting Up a Window Workshop
Buying a cutting machine without a punching machine
You cannot drill hardware holes or drainage holes in profiles with a cutting machine. Both machines are needed for any window that has locks, handles, or drainage — which is every window.
Buying a uPVC welding machine without an end milling machine
Welding directly on a cut profile produces weak corners with visible gaps. The end milling machine squares the profile end to ensure the weld surfaces meet perfectly. The two machines always go together.
Underestimating compressed air requirements
A 1 HP compressor cannot sustain production. Size your compressor for peak simultaneous demand — punching, routing, and any spray systems running at the same time. A 3–5 HP compressor with a 200-litre tank is the minimum for a 3-machine pneumatic setup.
Starting with a single-head cutter when production demands a double-head
A single-head cutter limits you to 20–25 windows per shift. If your business plan requires 40+ windows per day from day one, start with a double-head machine and avoid replacing equipment within the first year.
Not installing a voltage stabilizer
Indian electrical supply can fluctuate by 15–20%. Voltage spikes damage motor windings and electrical panels on cutting machines, welding machines, and CNC equipment. A voltage stabilizer is a small investment that protects all your machinery.
Production Flow — From Profile to Finished Window Frame
Aluminium Window Production Flow:
- 1.Measure and mark profile lengths from the window order sheet
- 2.Cut all horizontal and vertical members to length at 45° using the cutting machine
- 3.Punch drainage holes and hardware mounting positions using the punching machine
- 4.Route lock pockets, handle recesses, and espagnolette channels using the copy router
- 5.Insert corner keys and assemble the frame
- 6.Install hardware, gaskets, and glass beading
- 7.Glaze, inspect, and prepare for dispatch
uPVC Window Production Flow (additional steps):
- 1–4.Same as aluminium (cutting → punching → routing)
- 5.End mill all four profile ends to produce square, clean weld surfaces
- 6.Weld corners in the uPVC welding machine (seamless models require no cleaning step)
- 7.Clean weld beads if using a standard (non-seamless) welding machine
- 8.Install steel reinforcement, hardware, gaskets, and glass beading
- 9.Glaze, inspect, and prepare for dispatch
Ready to set up your window fabrication workshop?
Call +91-9265699061 or email sales@mechnovate.co.in — tell us your production target, profile systems, and available floor space, and we will recommend the exact machine combination with factory-direct pricing.