Microlap is a leading US manufacturer of extremely high precision industrial components made from synthetic ruby, synthetic sapphire, ceramic, carbide and other hard materials.


Corundum is the second-hardest natural mineral yet discovered. Red corundum is known as ruby, and all other colors of corundum are known as sapphire. Sapphire and ruby are durable materials with excellent optical characteristics. The durability and hardness of corundum make it resistant to abrasion and damage. Corundum’s unique characteristics make it ideal for a wide range of applications across a variety of industries.

Microlap’s unique mechanical manufacturing processes ensures optimum material integrity, while reducing fatigue and stress.

Typical uses for Synthetic Ruby and Sapphire Corundum:

  • Ball check valves for precision metering pumps and dispensers
  • Jewel Bearings
  • Windows for high temperature or corrosive environment
  • Pen tips
  • Orifice for air, gas and liquid metering
  • Pistons
  • Water-jet cutting orifices and nozzles
  • Wire guide
  • Probes for measuring instruments
  • Bearings
  • Probes for measuring instruments
  • Stylus tips
  • Magnetic tapes cleaning blades
  • Air bearings
  • Nozzle for printing heads
  • Fiber-optic lenses
  • Capillaries and collimators
  • Chemical and medical valves
  • Fiber-optic connectors
  • Gage contact points
  • Optical fiber slicing tips
  • Medical implant devices
  • Aperture for particles counting
  • Gyroscopes
  • Restrictors
  • Aircraft instrumentation

Unique Characteristics of Synthetic Ruby and Sapphire Corundum:

  • Single crystal
  • High thermal conductivity
  • Zero porosity
  • Heat resistant
  • Low friction coefficient
  • Chemical inertness
  • High polish attainable
  • Long life
  • Extreme hardness
  • Low specific gravity
  • Wear resistant
  • High refraction index
  • Non-magnetic
  • Shock resistant
  • High dielectric strength
  • Corrosion resistant

If you need a precision component that is extremely durable, resistant to corrosion, chemically inert, with zero porosity, Microlap can custom manufacture an economical solution to meet your exact specifications.

Request a Quote