VBM Enteprises are manufacturers and suppliers of external rotor motors, axial flow fans, centrifugal blowers, backward curved fans and cross flow fans, blowers & exhausters, etc.

Supplier and exporter of industrial pumps & spares of all major brands namely kirloskar / ksb / beacon / mather & platt

VBM Enteprises are manufacturers and suppliers of external rotor motors, axial flow fans, centrifugal blowers, backward curved fans and cross flow fans,excess flowvalve, etc.

Metalized sapphire windows are created by applying thin layers of chrome, nickel and gold around the edge of a sapphire window. This metalized edge creates a surface that can be soldered or bonded directly into your opto-mechanical assembly allowing you to create a hermetic seal. Hermetically sealed optics is used in a variety of applications ranging from infrared imaging systems to medical devices. Technical capability Material: optical sapphire (Al2O3) Diameter tolerance: +0, -0.1mm Thickness tolerance: +/-0.05mm Clear aperture: 90% Surface quality: 80-50 scratches and digs Surface accuracy: 2 lambdas per 25.4mm @ 632.8nm Parallelism: < 3 minutes Coating: AR coating, T > 98% @ 1260-1600nm Metalizing: Chrome, Nickel, and Gold; sputtering method or screen printing method