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WD 710 Single Head Welding Machine

Schtec WD 710 offers precise PVC welding at 30°-180° with 0.2mm accuracy. Digital touch screen, durable heater plate, quick mold change. Compact & efficient.

WD 720 Double Head Welding Machine

Schtec WD 720 welds two PVC corners at 60°-180° with 0.2mm precision. Touch screen controls, durable Teflon, and pneumatic brake for efficient welds.

WDV 724 Four Head Inline Welding Machine

Schtec WDV 724: Servo-driven inline 4-head welder for precise PVC frames (45°/90°/V). PID heat & auto centering optimize high-volume production.

WM 740 Four Head Welding Machine

Schtec WM 740 auto-welds four PVC corners at 90° for high volume production. Features Beckhoff PC, 15” touchscreen, PID heat control, and roll type Teflon system.

WM 750 Four Head Welding Machine

Schtec WM 750: High-performance servo welder for precise 0.2-2mm 4-corner welds. PID control & fast mold change optimize large-scale production.

Welding Machines

Frequently Asked Questions

Find quick answers to common questions about our Welding Machines.

1. What is the main purpose of a welding machine in PVC manufacturing?

Welding machines like WM 750 Four Head Welding Machine and WD 710 Single Head Welding Machine are used to fuse PVC profile corners by melting material, creating seamless and durable frames. They eliminate the need for mechanical fasteners and ensure air‑ and water‑tight joints. Consistent heat control and pressure maintain structural integrity and appearance over many cycles. In automated lines, welding machines coordinate with cleaning and cutting stations for full process flow.
High‑performance welding machines typically feature servo‑driven axes, parallel welding systems for balanced pressure, PID temperature controllers, and mold parameter storage for multiple profile types. Rapid mold changeover, central lubrication, and Teflon handling systems reduce maintenance downtime. Safety enclosures, light barriers, and efficient air management are also essential. Robust user interfaces and remote diagnostics enhance usability and monitoring.

The WDV 724 is ideal for continuous inline production environments where profiles move through the machine, welding in a flow setup. The WD 720 Double Head Welding Machine is suitable when moderate capacity and flexibility are needed, allowing two corners to be welded simultaneously. Single head machines like WD 710 are good for smaller runs or limited footprint setups. Four‑head machines like WM 740 are preferred for highest throughput in batch production.
The WDV 724 is ideal for continuous inline production environments where profiles move through the machine, welding in a flow setup. The WD 720 Double Head Welding Machine is suitable when moderate capacity and flexibility are needed, allowing two corners to be welded simultaneously. Single head machines like WD 710 are good for smaller runs or limited footprint setups. Four‑head machines like WM 740 are preferred for highest throughput in batch production.
Clean welding platens, remove residue, and inspect Teflon surfaces regularly to prevent imperfections. Calibrate temperature sensors, PID controls, and servo axes periodically to preserve accuracy. Check pneumatic lines, seals, and air pressure to maintain consistent force during welding. Lubricate motion components and adhere to central lubrication schedules. Monitor error logs, evaluate weld quality, and schedule preventive services to avoid unplanned downtime.