China Double Head Seamless Welder Manufacturer, Supplier, Factory

Lebulang brand CNC Arbitrary Angle Mitre Saw for Aluminum Profile Cutting is a high-precision, servo-driven industrial cutting machine designed for unlimited angle cutting of aluminum, PVC, and non-ferrous profiles. Ideal for window, door, curtain wall, and architectural aluminum fabrication, it features 22.5° to 157.5° continuous auto-angle adjustment (far beyond standard 45°/90° saws) and delivers burr-free, ±0.1mm repeat accuracy cuts.we are one manufacture for good price.

550 CNC internal swivel precision saw with 45°/90° dual-angle cutting. 550mm blade, dual-head design for aluminum, UPVC, and curtain wall profiles. High accuracy, smooth operation, built for industrial production.

Lebulang brand machine is one factory . 4 Heads Aluminum Window Corner Crimping Machine is a dedicated industrial device for crimping and assembling aluminum alloy window and door corners. Adopting four synchronous crimping heads design, it realizes one-time forming for window frame corners, featuring stable operation, uniform crimping force and seamless joints.

The 400mm Double Head Cutting Saw is a professional profile cutting machine engineered for PVC, UPVC, and vinyl window and door production. Equipped with two synchronized carbide-tipped saw blades (Ø400mm), it performs simultaneous two-end cutting at 45° and 90°, delivering burr-free, melt-free ends with repeat accuracy up to ±0.3mm. The machine features pneumatic auto-feed with adjustable damping, horizontal and vertical pneumatic clamping, and a movable head with digital length positioning (450–3500mm range). Designed for batch processing, it cuts window frames, sashes, mullions, and transoms in a single pass, significantly improving production efficiency. Built with a welded steel frame and precision linear guides, it offers low-vibration, long-service operation. CE certification and voltage customization (220V/380V/415V) are available for global markets.

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.

This 550 CNC outward swing precision cutting saw is designed for high-accuracy 45° mitre and 90° square cutting of aluminum profiles, thermal break aluminum windows, and UPVC/PVC profiles. The saw head swings outward for safe, easy operation and material loading. Equipped with a Ø550 mm carbide blade, CNC control, and pneumatic clamping, it delivers clean, burr-free cuts with excellent repeatability. Available in single-head and double-head configurations.