Mechanical boosters are used to “supercharge” suppliers of vacuum pumps to greatly extend pump performance. This allows for much faster pumping speeds and deeper vacuum levels. KMDB mechanical boosters from Tuthill Vacuum & Blower Systems are utilized worldwide in the manufacture of chemicals, petrochemicals, plastics, semiconductors and wood composites as well as food processing, vacuum furnace manufacturer applications and many other general applications in industry. Optional Materials and Coatings Available Standard construction materials include cast iron housing, end plates and port fittings with ductile iron rotors and shafts. In addition to standard construction, the following materials are available: Special Materials Special Coatings Ductile Iron Armoloy® electrochromium Steel Nickel Stainless Steel Ryton® polyphenylene sulfide (PPS) Hastelloy® Low Mechanical Noise Every KMBD mechanical booster is designed to operate at 82 dB(A) or less at blank-off (open field; motor and background noise excluded) Versatile Drive Configurations KMBD Mechanical Boosters are supplied with a heavy-duty drive shaft for either direct coupled or belt-driven applications. Material Specifications Housing: Cast iron End Plates: Cast iron End Covers: Cast iron Rotors: Ductile iron Shafts: Ductile iron cast integrally with rotors Drive Shaft: KMBD 200/400 - Ductile iron All others - SAE 4140 forged alloy steel Bearings: Gear end - All models: Double row ball, both rotors Back end - KMBD 200/400 – 4500: Cylindrical roller KMBD 5500 – 10000: Double row ball Drive Shaft: KMBD 200/400 – 720: Double row ball KMBD 850 – 2700: Single row ball KMBD 2900 – 4500: Cylindrical roller KMBD 5500 – 10000: Spherical roller Gears: Heat-treated alloy steel, helical cut & precision ground Seals: Drive shaft – Mechanical Rotor shafts – Non-contacting slinger (Mechanical seals suppliers optional) Lubrication: KMBD 200/400 – 2700: Oil splash system, both ends KMBD 2900 – 7300: Oil splash system standard, Integral pressure lube optional KMBD 800 – 10000: Integral pressure lube standard KINNEY® KMBD™ Mechanical Boosters Optional Motor Mounting Flanges All KMBD 200/400 – 4500 models are available with flange adapters for mounting either a NEMA C-face motor (up to 75 HP) or an IEC D-flange motor (up to 55 kW) directly to the mechanical booster, eliminating the need for a separate base mounted assembly and coupling guard for the mechanical booster. Specify “C” suffix. Metric Availability All KMBD Mechanical Boosters are available with metric drive shaft and process connections. Individually Tested Every KMBD mechanical booster is fully factory run tested, including blank-off test and heat run to assure you of the highest quality. Tuthill Vacuum & Blower Systems goes the distance to insure that your mechanical booster meets our rigid ISO 9001 registered quality standards. Worldwide Sales and Service With sales offices and service facilities located on six continents, you can be assured of availability and service for your KMBD Mechanical Boosters.