# 4-way window and frame welding equipment
> FG40 is a four-corner welding machine designed for high-precision welding of door and window frames, structures and industrial frames made…
Catalog: Window and frame production equipment
Updated: 2026-07-14

FG40 is a four-corner welding machine designed for high-precision welding of door and window frames, structures and industrial frames made of PVC, aluminum and other profile materials. The machine has heat welding technology and simultaneously joins profile sections into four corners. Due to its wide welding range, automated operation and stable design, it is ideal for large-scale production.

## Key specifications

- **Input power:** 11 kW
- **Power supply:** 380V
- **Model:** FG40
- **Overall dimensions:** 5000 × 1728 × 2870 mm
- **Weight:** 3000 kg
- **Required air pressure:** 0.5–0.8 MPa

## Specifications

| | |
|---|---|
| Parameter | Information |
| Model | FG40 |
| Input power | 11 kW |
| Power supply | 380V / 50Hz |
| Required air pressure | 0.5–0.8 MPa |
| Welding width | 20–120 mm |
| Welding range | 0–120 mm |
| Working area (small) | 300 × 300 mm |
| Working area (medium) | 1800 × 3000 mm |
| Overall dimensions | 5000 × 1728 × 2870 mm |
| Weight | 3000 kg |
| Machine type | Four-corner welding machine |

## Overview

Advantages

The machine has a wide welding range, allowing it to weld frames of various sizes with consistent quality. Its heat control is stable, ensuring smooth and solid weld seams. The one-time four-corner welding function reduces overall production time and labor costs. The powerful 11 kW power units enable the machine to handle heavy and large frames. The automated control panel allows quick and easy parameter adjustments. Its large structural design ensures stability and precise geometry during production.

Where It Is Used

The FG40 machine is used in the following areas:

Production of PVC and aluminum window frames

Welding door frames

Industrial structures, special frames, and panels

Working with thermally insulated profiles

As the main four-corner welding station for large-scale welding lines

Finished Products

## Video

- https://youtu.be/ymE2_USkbF8

Tags: frame, welding, window

**Price:** Delivery, installation, warranty — request a quote.

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