Four Head Welding Machine - PVC Window Angle Frame Welding Equipment is a high-precision professional device for UPVC, PVC and plastic steel door and window frame processing. Four Head Welding Machine PVC Window Frame Welding Equipment supports dual working modes of independent single-head operation and four-head linkage synchronous work, realizing one-step forming for standard rectangular frames and various special-shaped window frames to meet diverse production needs. Equipped with advanced seamless welding technology, accurate pneumatic clamping and stable PLC intelligent control system, the machine fits ordinary PVC profiles, co-extruded colored profiles and film-coated profiles perfectly. With flexible batch customization, pre-job machine debugging service and stable operational performance, it lowers production thresholds and brings reliable long-term returns for profile processing manufacturers.
PVC UPVC Colorful Windows Profile Seamless Welding Machines with 4 Heads is premium welding equipment tailored for colorful, co extruded and sprayed PVC/UPVC door & window profiles. Unlike conventional welders, it eliminates traditional welding burrs via integrated seamless welding and automatic cleaning. It effectively avoids profile discoloration, glue overflow and visible seams, upgrading finished windows’ aesthetics and sealing performance. Equipped with reliable pneumatic and PLC control systems, it enables multi station simultaneous operation, serving as ideal core machinery for high volume, high quality PVC door and window manufacturing.
This dual-head seamless welding machine is a core fabrication unit for high-end uPVC, PVC, and vinyl window and door production. Two synchronized welding heads (left fixed, right movable with pneumatic brake) complete 90° and V-shaped corner joints in one cycle, delivering a 0.2 mm invisible seam without upper/lower welding beads—eliminating most manual corner cleaning for both white and color-foil / co-extruded profiles.
The UPVC PVC Windows Double Head Seamless Welding Machine is a high-performance solution designed for modern window and door manufacturing. It combines double head welding with automatic bead cleaning in a single seamless operation, delivering a smooth, premium surface finish while achieving welding strength superior to traditional methods. Engineered for PVC, UPVC, plastic, and vinyl profiles, this machine features advanced pneumatic control, standardized interchangeable cutters, and full support for window profile welding — making it an ideal choice for production lines that demand higher quality, efficiency, and ease of operation.
The PVC Window Door Making Single Head Double Side Seamless Welding Machine is a premium solution for manufacturing high-end white and colored UPVC doors and windows. Equipped with a single machine head that houses four precision cutters, it achieves flawless double-sided seamless cleaning on both top and bottom surfaces. Driven by a top-level Omron PLC and guided by precision square rails, this machine guarantees exceptional welding strength and a perfectly smooth finish. With versatile angle welding capability (30°–180°) and customizable features, it supports on-demand component matching and extended spare parts supply cycle, making it the ideal choice for producing standard, arc-shaped, and custom-designed PVC windows for global merchants.
Innovation meets versatility in the Lebulang PVC End Milling Machine for Window Profiles. Designed for semi-automatic end-face milling of PVC and aluminum-plastic window profiles, it supports a wide range of structures using different tools – from step surfaces and rectangular grooves to tenons. The worktable positioning plate can be adjusted from -55° to +55°, enabling precise bevel cutting at various angles. Thanks to a linear bearing motion pair for tool feed, the machine delivers stable performance with an end-face surface roughness of Ra12.5μm. A reliable asset for medium-to-large-scale manufacturing.
Lebulang Machine is a professional UPVC Window Machine manufacturer and supplier in China. We have an experienced sales team, professional technicians, and an after-sales service team.
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