China Three-Head Saw and Seamless Welding Machine Manufacturer, Supplier, Factory

Single-head manual cutting saw is mainly used for cutting aluminum alloy profiles, UPVC profiles, and curtain wall materials at 45° and 90°. It features stable cutting, simple structure, easy operation, and low maintenance cost. Widely used in window and door manufacturing, decoration engineering, and profile processing workshops.

Shandong Lebulang Precision Machinery Co., Ltd. introduces the 1800mm Horizontal Insulated Glass Washing and Drying Machine – a heavy duty inline cleaning system tailored for large format insulating glass production. The machine features a horizontal feeding design, 304 stainless steel construction, and a high efficiency air knife drying module. It delivers thorough contaminant removal from glass surfaces prior to sealing, ensuring durable IG unit bonds. Core buyer benefits: high throughput, low water consumption, easy maintenance, customizable voltage, rapid spare parts availability, and 1 year warranty.

Our Lebulang brand Hydraulic Single Head Corner Crimping Machine LMD-120 is a professional, high-precision hydraulic crimping equipment specially developed for 90° corner assembly of aluminum alloy door and window profiles. Adopting mature hydraulic drive technology, this single-head corner crimping machine delivers stable crimping pressure, precise positioning, and seamless corner joint effect, perfectly solving the loose joint, gap and deformation problems of traditional aluminum profile corner crimping processes.we are one window and door machine manufacture

The 450mm CNC Double Head Internal Swing Precision Cutting Saw (45°/90°) is a high-end profile cutting machine designed for aluminum, thermal-break aluminum, and UPVC/PVC window and door production. Equipped with two synchronized Ø450mm TCT carbide blades and CNC-controlled inward-swing saw heads, it performs simultaneous two-end mitre cutting at 45° and 90° with repeat accuracy up to ±0.1mm. The machine features pneumatic auto-feed with adjustable damping, horizontal and vertical pneumatic clamping, and CNC digital positioning for cutting lengths up to 3700mm. The internal swing head design saves floor space while ensuring stable, vibration-free operation. Built for batch production, it delivers burr-free, square ends ready for assembly. CE certification and voltage customization (220V/380V/415V) available for global markets.

This CNC Aluminum & PVC Profile Bending Machine​ is engineered for precision arc forming of architectural profiles used in curtain walls, facades, and arch windows. Utilizing a 3-roller synchronized bending system​ and servo-driven control, it delivers smooth, distortion-free curves with ±0.5mm accuracy. The machine supports both aluminum extrusions​ and PVC/UPVC profiles, enabling multi-radius bending in a single setup. Designed for high efficiency and repeatability, it eliminates manual correction, reduces material waste, and ensures consistent quality for large-scale facade and window fabrication.

Shandong Lebulang Precision Machinery Co., Ltd. developed the 1200 Horizontal Insulated Glass Washing and Drying Machine, a compact high-precision device dedicated to modern insulated glass production. Adopting a humanized horizontal feeding structure, it avoids glass breakage and operator fatigue caused by vertical lifting. Equipped with multi-stage cleaning, circulating hot air and high-pressure air knife drying systems, it delivers 100% spot-free, static-free glass surfaces. With optional soft brushes for Low-E coated glass, it is ideal equipment for high-standard IG manufacturing.