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threeHead Seamless Welding Machine for PVC Doors and Windows
This combined uPVC window fabrication set pairs a three-head 45°/90° precision cutting saw with a three-head seamless welding machine, delivering a streamlined workflow from profile cutting to invisible corner joining. The saw unit performs synchronized miter and straight cuts on uPVC/PVC and aluminum profiles; the welder executes 0.2 mm bead-free seams on white, color-laminated, co-extruded, and spray-finished profiles, cleaning top and bottom flash in one cycle.
Produced by Lebulang Machine — a China-based manufacturer with nearly 30 years of factory experience in window and door processing equipment — this three-head welding machine is built for joining PVC and UPVC profiles, including colored, co-extruded, and sprayed surfaces. The machine holds CE and ISO certification, supports OEM and ODM orders, and is supplied directly from the factory.
This combined uPVC window fabrication set pairs a three-head 45°/90° precision cutting saw with a three-head seamless welding machine, delivering a streamlined workflow from profile cutting to invisible corner joining. The saw unit performs synchronized miter and straight cuts on uPVC/PVC and aluminum profiles; the welder executes 0.2 mm bead-free seams on white, color-laminated, co-extruded and spray-finished profiles, cleaning top and bottom flash in a single cycle.
Left, middle and right heads cut 45°/90° in one clamping — no re-positioning, no cumulative error.0.2 mm Seamless WeldingThree welding heads work independently or jointly; top & bottom beads trimmed in one pass for invisible joints.Color-Profile ReadyPerfect for laminated, co-extruded and spray-finished profiles where surface flatness is critical.PLC Intelligent ControlOmron/Mitsubishi-class PLC with pneumatic drive manages heating, melting, pressing & cooling times.Alloy Cutter + Slag RemovalEach head carries alloy cutters with air-blow slag removal for clean, maintenance-free operation.Up to 70% Labor SavingOne-line workflow cuts post-weld corner-cleaning labor dramatically and raises output per shift.
Technical Specifications
| Parameter | Value |
| Power Supply | 220V/380v 50Hz (customizable) |
| Input Power | 3.5 kW |
| Working Air Pressure | 0.5--0.8 MPa |
| Air Consumption | 150--200 L/min |
| Welding Profile Height | 20--100 mm (120/140/160 mm optional) |
| Welding Profile Width | ≤120 mm |
| Welding Length Range | 400--3500 mm |
| Overall Dimensions (L×W×H) | 4400×1100×1700 mm |
| Machine Weight | 1300 kg |
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Machine Details
Control Panel
- Digital display for heating/docking time adjustment
- Emergency stop button and safety interlocks
- PLC control unit for automated cycle management
Welding Heads
- Each head equipped with heating plate, clamping mechanism, and cleaning cutter
- Movable heads with pneumatic braking for secure positioning
- Special alloy cutters for durable, precise weld bead removal
Linear Guide System
- High-precision linear rails for smooth head movement
- Self-lubricating design reduces maintenance and extends service life
Why Choose Our Three Head Seamless Welding Machine for PVC doors and windows?
- Superior Weld Quality: Seamless finish enhances product aesthetics and market value; weld strength exceeds industry standards.
- Cost-Effective: High productivity reduces labor costs; low maintenance design minimizes downtime.
- Versatile: Adapts to various PVC profiles and window/door designs; supports custom angle welding.
- Reliable Performance: Heavy-duty construction and top-brand components ensure long-term stability.
- Easy Operation: This Three Head Seamless Welding Machine for PVC doors and windows adopts a user-friendly interface with pre-set professional programs, requiring minimal training for operators, which greatly lowers the operating threshold for factory production.
FAQ
Q1: What materials can this machine weld?
A1: It is designed for PVC/UPVC profiles, including colored, co-extruded, and sprayed profiles.
Q2: Can it weld different angles?
A2: Yes, the third head supports 30° to 180° arbitrary angle welding for special design requirements.
Q3: What is the production capacity?
A3: It can weld 2--3 window corners per cycle, with a daily output of 80--120.
Q4: Can the machine be customized?
A4: Yes, we support personalized customization including special welding height, working length, voltage standard, and customized fixtures to match your diverse production requirements.
Hot Tags: 0.2 mm invisible weld seam
One-pass corner cleaning after weld
Saw + weld sync for frame assembly
Omron PLC + Siemens electric parts
Pneumatic clamping, movable right head
Labor-saving uPVC window line
Door and window equipment
Related Category
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Contact Info
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Address
Zone B, Rural Revitalization Industrial Park, Xuanzhangtun Town, Qihe County, Dezhou City, Shandong Province, China
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Send your inquiry to Lebulang Machine for a free quote on thermal break aluminum, curtain wall, insulated glass or UPVC processing equipment. OEM customization supported, factory direct price, fast response.
