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Vertical CNC Four-Corner Welding Machine


Product Model: SHP4-CNC-3000A

   Product details

Brief Introduction of Vertical CNC Four-Corner Welding Machine

CNC vertical four-corner welding machine is the special machine for the welding of uPVC profiles, and ideal equipment for mass production of uPVC windows and doors. The four welding heads can finish the welding of rectangle window frames or sashes in one work operation, featuring high efficiency.

Compared with other uPVC welding machines, significantly, the four-corner welding machine improves the welding strength, welding accuracy and durability of uPVC windows and doors through window-frame parallel welding and synchronous profile-clamping technology, imported step motors and synchronous belts, and high-accuracy liner bearing motional pairs. Additionally, good-performance and long-life pneumatic components, imported industrial PC in control system, and high-strength machine construction, guarantee the service life of the uPVC window welding machine. This machine is easy to operate with user-friendly human-machine interface, and easy to maintain with pneumatic driving system and motional pairs of oil-free lubrication bearings.

Features of Vertical CNC Four-Corner Welding Machine

  • Process two or three window frames at one time with special profile positioning plates
  • Most of welding parameters can be changed easily on the human-machine interface
  • Pressure, temperature and welding time can be adjusted manually according to uPVC profile types and external environmental condition
  • High accuracy of welded window or door frames through size error compensation
  • Suitable for mass production of uPVC windows and doors
  • High angel weld strength and higher pass-rate of products

Technical Parameters of Vertical CNC Four-Corner Welding Machine

Working Air Pressure     0.5-0.8Mpa
Air Consumption             200L/min
Power Supply                  380V/50Hz
Input Power                     11KW
Welding Range               300*300-1800*3000mm
Welding Profile Height   20-120mm
Welding Profile Width     0-120mm
Outside Dimension        5500*1750*3000mm
Weight                               3200Kg


The uPVC window welding machine is a major and essential equipment for manufacturing uPVC widnows and doors. The machine heat the end of cutted uPVC profiles into molten state through heating plates, and then fabricate the uPVC profiles into a window or door frame by pressing. The movements of profile clamping, profile melting, and frame fabricating are controlled by a PLC, and all the movements are finished one by one automatically. Welding is the most important step for making PVC windows and doors, and the welding quality (such as welding strength, welding-angle accuracy, window size accuracy) will affact the finished window quality directly. STONE Window Mahinery guarantees the welding quality of the uPVC window machine through adopting high quality heating plates and temprature controllers, high accuracy liner bearing motional pairs and other high quality machine components, and through our strick quality control system.

Product Video
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