SSL 1 Four Head Welding & CNC Corner Cleaning Line

Fully automatic PVC window/door production. Simultaneous 0.1mm 4-corner welding & CNC cleaning. High-speed (400+/hr) with PID & PC control.

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SSL 1 Technical Specifications

WM 740 Four Head Welding Machine

Machine NameWM 740 Four Head Welding Machine
Power Supply400 V, 3ph, 50-60 Hz
Power Consumption11.5 W, 28.75 A
Max. Welding Length3.600 mm x 2.600 mm
Min. Welding Length450 mm x 450 mm
Min. Welding Length (with gasket pressing)520 mm x 570 mm
Max. Profile Height180 mm
Min. Profile Height35 mm
Max. Profile Width120 mm
Air Pressure6-8 bar
Air Consumption70 lt./min.
Machine Height1.880 mm
Machine Length4.980 mm
Machine Width4.750 mm
Machine Weight1.920 kg

TS 820 Turning Station with the Robotics Arms

Machine NameTS 820 Turning Station with the Robotics Arms
Voltage400 V AC, 3 P, 50/60 Hz
Power Consumption3 kW, 7.5 A
Min. Outer Frame Dimension450 x 450 mm
Max. Outer Frame Dimension2.300 x 2.300 mm
Max. Profile Height160 mm
Min. Profile Height35 mm
Max. Profile Width130 mm
Machine Weight850 kg

CS 810 Cooling and Buffer Station

Machine NameCS 810 Cooling and Buffer Station
Power Supply400 V, 3ph, 50-60 Hz
Power Consumption1,5 kW, 3 A
Machine Height1.050 mm
Machine Length3.350 mm
Machine Width2.740 mm
Machine Weight315 kg

CM 620 CNC Corner Cleaning Machine

Machine NameCM 620 CNC Corner Cleaning Machine
Voltage400 V AC, 3 P, 50/60 Hz
Power Consumption7 kW, 18 A
Air Pressure6-8 bar
Air Consumption110 lt./min.
Saw Blade DetailsØ 250 x Ø 30 x 3.2 mm, Z=80
Saw Blade rpm5.200 rpm
Drillers rpm14.000 rpm
Max. Axes Speed45 m./min.
Max. Outer Frame DimensionLimitless (Automatic Mode: 2.300 x 2.300 mm)
Min. Outer Frame Dimension380 x 380 mm (Automatic Mode: 450 x 450 mm)
Max. Profile Height160 mm (Depending on profile type, different regions can be cleaned)
Min. Profile Height35 mm
Max. Profile Width130 mm
Machine Height1.900 mm
Machine Length2.150 mm
Machine Width1.250 mm
Machine Weight960 kg
Tool Count12 pieces
Capacity400–440 frames / 8 hours (based on 1 corner cleaning time)

Description

Standard Features

SSL 1 Four Head Welding and CNC Corner Cleaning Automation Line

  • An integrated system which consists of a WM 740 four point welding machine, a CS 810 cooling and buffer station, a TS 820 Robotics design turning station and a CM 620 CNC Corner Cleaner
  • All process is controlled by industrial PC systems from welding to cooling,to turning and finally to cleaning

WM 740 Four Head Welding Machine

  • Welds four corners of PVC profiles simultaneously at 90 °with high sensitivity and strength
  • Beckhoff brand, high performance industrial PC operated by Windows XP Embedded. Fanless motherboard system works between 0°C – 55°C, and it comes with a 15” touch screen display
  • Data transfer via ethernet network connection, wireless network connection or USB interface
  • Welding parameters are defined by the user for every individual profile(up to 10,000 profiles)
  • Welding temperature, melting and welding times can be adjusted individually for each profile type.
  • All machine axes are moved by hardened steel ball screw which provides accuracy and durability.
  • PC controlled (PID) heat control system to obtain strong welding results in compliance with standards.
  • Summer / winter working mode is automatically selected,so the temperature adjustment is done easily
  • Horizontally placed strong mechanical heating plates distribute heat homogeneously without being affected from difficult working conditions.
  • Easy and fast change for teflons by specially designed roll up teflon system.
  • Easy and fast change for welding moulds
  • Works effectively by compressed air supplied to the system
  • White or colour profiles can be weld with the same sensitivity
  • Central lubrication system minimizes maintenance time
  • Reports can be created for daily, weekly, monthly and annual production
  • Light barriers and safety equipment confors to CE machine design with full security
  • Stable and accurate data transfer between this machine and the CNC corner cleaning machine via Industrial quality Ethernet connection
  • All the error messages and system status can observed on screen by HMI software program developed by the Schtec software department
  • Service to the entire automation system,trouble shooting and fault removals can be done by remote connection

TS 820 Turning Station with the Robotics Arms

  • High speed and high accuracy turning operation via a robotic system with strong and fast mechanical turning arms
  • Stable turning process with highly durable turning arms
  • Turning speed calculation is done automatically for each frame’s geometric shape, reinforcement steel weight and all other factors included.
  • All machine axis are moved by hardened steel rack and pinion gear system which provides accuracy and durability
  • Turning robot spends the minimum energy and the least amount of time by synronochizing its actions with the CNC machine’s fence system.
  • Its compact design allows it to occupy the smallest working area possible, which is 12 m² less than its competitors.
  • Turning time is 1 second for small frames and between 1,5 – 4 seconds for all other sizes.

CS 810 Cooling and Buffer Station

  • Works between the corner cleaner and the welding machine, providing cooling time for the profiles coming from the welding machine before sending them to the corner cleaning machine.
  • Cooling time is set through the welding machine’s control panel.
  • Helps increase the production capacity by storing the profiles coming from the welder before sending them to the corner cleaner.

CM 620 CNC Corner Cleaning Machine

  • High speed and accuracy corner cleaning with Servo System controlled 2 Axes
  • Automatic knife selection for selected profile foil type (colour / white)
  • High quality corner cleaning result through  durable special knife and bit designs
  • High quality cleaning results on surfaces by automatic measurement system
  • Industrial PC Based Control System (Beckhoff)
  • Remote desktop connection by way of Wifi or Network connection
  • File transfer by USB or network
  • Easy programming support via DXF,DWG file extensions
  • Central lubrication system for all bearings, axis and sliding bearings
  • 15” TouchScreen
  • High performance industrial PC working between 0C – 55C with operating system Windows XP Embedded and fanless design
  • All alarm messages are shown on the machine interface thanks to software which was developed by SCHTEC Software R&D Department.
  • By way of using private remote desktop connection, which was developed by SCHTEC Software R&D Department, expert service technicians can connect machine automation system and machine interface for fixing or determine problems.

Product Description

Schtec SSL 1 is a fully automatic welding and CNC corner cleaning line designed for PVC window and door production. It welds all four corners simultaneously with 0.1 mm precision, ensuring fast and high-quality output. After welding, the frame is automatically rotated and cleaned by CNC blades. With PID heat control, industrial PC management, and a capacity of 400+ frames per hour, SSL 1 delivers low error rates and high speed. Its automatic turning and cleaning functions minimize manual intervention, boosting efficiency. The SSL 1 line is an ideal automation solution for PVC window and door manufacturers.

FAQ
Four Head Welding & CNC Corner Cleaning Line

Frequently Asked Questions

Find quick answers to common questions about our Four Head Welding & CNC Corner Cleaning Line Machines.

1. What is the purpose of a welding & CNC corner cleaning line in PVC profile production?

A welding & corner cleaning line integrates welding and post‑weld cleanup (deburring, trimming) operations into a single, automated workflow. It ensures that after corners are welded, any residual material, flash, or burrs are precisely removed, delivering clean, ready-to-assemble frames. This setup improves cycle time, minimizes manual finishing, and raises overall frame quality. In high‑volume facilities, such lines reduce bottlenecks between welding and subsequent finishing steps.
Important features include synchronized welding and CNC cleaning modules, robotic turning stations for frame orientation, inter-module buffering/cooling, servo axis control, and industrial PC control across all operations. Fast mold and tool changeover, remote diagnostics, profile parameter databases, and safety enclosures are critical. Also, precise data communication and alignment between welding and cleaning phases ensures consistency and reduces error propagation.
The SSL 1 / SP line integrates a WM 750 four‑head welding machine, a CS 810 cooling/buffer station, a TS 820 robotic turning station, and a CM 620 CNC corner cleaner in one automated system. All processes—from welding through cooling, turning, and cleaning—are controlled via industrial PC. The line employs servo‑driven axes, centralized lubrication, fast mold and Teflon changes, and real-time error reporting. It’s designed for high throughput and minimal operator intervention.
Using an integrated line means welded frames directly move into the corner cleaning stage without manual transfer, saving time and reducing handling-induced defects. The robotic turning station ensures correct frame orientation before cleaning. Built-in buffers and cooling stages help match production pace. Because all segments communicate via industrial control, parameter consistency is maintained across modules. This leads to smoother workflow, fewer stops, and improved throughput.
Regular cleaning of welding and cutting tools, removal of debris, and inspection of knife and bit wear in the CNC cleaner is essential. Servo axes, sensors, and tooling must be calibrated periodically to maintain accuracy. The robotic turning arm should be checked for mechanical wear, alignment, and elasticity. Pneumatic and cooling circuits require leak checks and filter maintenance. Central lubrication and scheduled preventive checks reduce unexpected downtime and ensure stable performance.