Used-Stokes Front Loading Horizontal Metalizer
Used-Stokes Front Loading Horizontal Batch Metalizer, Model 426-4, Includes; 64" chamber, vacuum pumping systems, diffusion pump, mechanical pump, control cabinet, MCC cabinet, valves, gauges, controls, and safety devices. The chamber is a horizontal unit made of welded steel sections of thin gauge stainless steel sheet serve as a liner around the inside periphery of the chamber. This greatly facilitates cleaning the chamber when excess aluminum has accumulated on the walls. On the front end of the chamber a flanged door is mounted on rugged hinges to assure perfect alignment. An O" ring gasket mounted in a groove of the machined flange provides an excellent vacuum tight seal when the door is held shut by a quick-opening clamp. In most applications, one or more work holding assemblies are provided, each consisting of a 4-wheel dolly, rotary carriage with filament assembly and 6 rotary reels. Work loading and filament changing, as well as charging filaments with metal to be evaporate, is accomplished outside the vacuum chamber. Transportation of the carriage, filament assembly, and rotary reels is accomplished with the dolly. The vacuum chamber is equipped with rotary drive and electrical leads which are engaged when the carriage is wheeled from the dolly on to matching rails in the chamber. The high vacuum pumping system consists of a Stokes 1721 Mechanical Booster Pump that initially rough pumps the chamber and backs the Stokes 160-5 16" Diffusion Pump during the high vacuum pumping. The Diffusion Pump is connected to the chamber through the integral poppet valve, which is part of the chamber. A stokes 289-3 Hold Pump is used to hold vacuum in the vapor pumps during the roughing and vacuum break cycles of operation. The control panel is provided complete with vacuum gauges, push-button controls, pilot lights, etc. A 250 KW S.C.R power supply is provided for flashing the filaments".
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