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Configuration:

Ultimate Operating Vacuum:

Pumping Speed:

Motor Power:

Power Source:

High Vacuum / UHV Pump Technology:

Mechanical Pump Technology:

Integral Backing Pump?

Lubrication:

Stages:

Vacuum Pump Drive:

Application:

Mounting:

OEM Controller / Control Panel?

Valve Sequencing Control?

Vacuum Gauge?

Integral Trap(s)?

Gas Ballast?

Magnetic Bearing?

Operating Temperature:

Allow up to: overrange/margin
Use the overrange/margin to restrict your search to items whose full-scale range is close to your requirements.
(Overrange/margin requires both 'From' and 'To' values to work.)

Help with High Vacuum Pumps specifications:

Vacuum Pump Type
   Configuration       
   Your choices are...         
   Individual Vacuum Pump       Individual vacuum pump are typically for insertion into or used with a larger system or process. 
   Combination / Multi-Technology Pump       Multi-technology pumps have two or more different technologies or capacity pumps stacked together to increase capacity, or take advantage of the features of each type. 
   Vacuum Pump System / Station       Vacuum systems can include multiple pumps and associated piping, valves, controls, receivers, etc. These pumps can also indicate centralized vacuum sources for manufacturing or automation cells or plants. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Vacuum Specifications
   Ultimate Operating Vacuum:       Vacuum or pressure is often measured in torr, or mm Hg referenced above absolute zero pressure. Sometimes the following reference terms are used: 1 torr and above: Rough Vacuum 0.001 to 1.0 torr: Medium Vacuum Below 0.001 torr: High Vacuum There are other terms and standards used, such as medium vacuum and ultra high vacuum; consult supplier for application specifications. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Pumping Speed:       Pumping speed or air volume capacity of vacuum pump.  Vacuum pumps are flow rated according to the volume of air exhausted with no pressure differential across the pump. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Motor Power:       Motor power is a reference value used to characterize vacuum pump size. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Power Source:       
   Your choices are...         
   None       Not having a power source is an option for some high vacuum pumps such as turbomolecular, where vacuum is increased by molecular absorption rather than mechanically moving parts. 
   Compressed Air / Fluid       In compressed air / fluid systems, power is derived from nonelectric media such as motive fluid. Compressed air is most common, but hydraulic or other power sources are possible. 
   DC Power       DC power includes battery and power supply inputs. 
   AC Single Phase       Single-phase AC motor voltages include 115V/60Hz and 230V/50Hz. 
   AC Three Phase       Many industrial devices run from three phase power such as 208V or 377V. 
   Engine       Pumps whose primary power comes from an engine, such as a gasoline or diesel engine. 
   Magnetic Drive       Magnetic drives typically use a rotating magnetic field to drive the pump impeller. This can allow for seal-less construction and is often used for pumping clean liquids or gases. 
   Other       Other unlisted or specialized power source. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Pump Technology
   High Vacuum / UHV Pump Technology       
   Your choices are...         
   Turbomolecular       Turbomolecular pumps use a series of high-speed rotors (25,000 to 75,000 rpm) and flow stabilizing, stationary stators to impart a preferential motion to gas molecules and create molecular flow through the pump. They are often described as "molecular bats." They are also known as axial flow turbines. 
   Molecular Drag       Molecular drag pumps are similar to turbomolecular pumps, except a rotor drum with a ridged surface and cylindrical stator are used in place of stator and rotor blades to impart a preferential motion to gas molecules and create molecular flow through the pump. Hybrid pumps are available that use combinations of blades and ridged drums. 
   Diffusion / Vapor       Diffusion pumps use jets of diffusion oil vapor to impart momentum and sweep gas molecules from the system. Diffusion pumps have no moving parts and provide the highest pumping speed for lighter gases like helium and hydrogen. Diffusion pump oil can wander or backstream into the system causing process contamination. 
   Ion       Ion pumps utilize a sputtering process to ionize then entrain gas molecules and embed them into the anode or cathode wall.  The entrainment process can utilize a getter, such as titanium, to bind and bury the molecules. Ion pumps can operate in the ultra-high vacuum range and eliminate contamination by organic molecules. 
   Cryogenic / Cryosorption       Cryogenic pumps utilize extremely cold (liquid N2 and He temperatures) surfaces, and absorption surfaces freeze or trap molecules. Cryogenic pumps can operate with relatively high force or exhaust pressures. Cryogenic pumps must be periodically generated to purge the frozen or trapped gases. Cryosorption pumps evacuate gas molecules from a volume by adsorbing them on the chilled surface of a molecular sieve. These molecular sieves are designed to have a large surface area-to-volume ratio to maximize the adsorbing area. 
   Getter / TSP / NEG Sorption       Getter or titanium sublimation pumps (TSP) entrain gas molecules in a getter, or material that is vaporized in order to absorb or capture the molecules and embed them on the cold outer wall of the chamber.  These can also use "non-evaporating gettering sorption" techniques by using a large-surface-area porous matrix for entrainment. 
   Other       Unlisted, specialized, or proprietary high vacuum pump. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Mechanical Pump Technology       
   Your choices are...         
   Axial Blower       Axial blowers are multiple-blade rotors that imparts axial velocity which is converted to pressure. Axial blowers generally have very high flow rates. 
   Centrifugal Blower       Centrifugal blowers are high-speed impellers that produces radial air flow. Velocity is converted to pressure energy. Evacuated air flows radially outward against blower wall, as opposed to axially through tube axial blowers. 
   Circumferential Piston       Circumferential pistons have multiple-rotor configurations in which two rotors, each with two "wings". The wings trap air against the outside wall during rotation and compress it in their rotary stroke toward the outlet. The wings of the two rotors alternate in compression strokes. 
   Claw       Claw or rotary claw pumps use precision-designed intermeshing hooked claws with very tight tolerances and clearances for highly efficient internal compression. They are typically noncontact, minimizing, or eliminate friction and wear. 
   Diaphragm       Diaphragm oscillation is driven by a reciprocating or eccentric "rocking" rod with no sliding seals or parts. This design isolates the pumped fluid from any contact with the pumping mechanism.  Diaphragm pumps exhibit a much lower compression ration than piston pumps, but frequently offer quiet, economical performance. 
   Gear Pump       Gear pumps are positive displacement pumps used to transport high pressure and high volume flows. They use the meshing of gear teeth to reduce volume and move air to evacuate the vacuum chamber. 
   Linear       Linear pump technology uses the stroke of sliding piston compression. It is generated with electromagnetic oscillation, and is clean and quiet. 
   Liquid Ring       Eccentrically mounted rotors and vanes utilize liquid ring on the inside of chambers to compress air. The liquid also absorbs compression heat and entrained particles in the air. 
   Lobed Rotor       Lobed rotor technology traps air and compresses it by the diminishing volume, which is caused by the meshing of oppositely rotating lobes. 
   Reciprocating Piston       Reciprocating pistons mechanically reduce air volume inside a cylinder. These pumps may have one or several pistons being driven by a motor. The vacuum levels produced by this pump style are somewhat higher than for other types of mechanical pumps. 
   Regenerative Blower       Regenerative blowers are similar to centrifugal with airflow chambers designed to generate higher pressure. Air flows radially outward along blade to housing wall, whereupon it flows down to the root of the next blade gap and repeats the cycle.  The airflow thus creates several "stages" of compression. 
   Rocking Piston       Rocking pistons are similar to reciprocating pistons, but are not articulated. These pistons "rock" with eccentric motion of drive. 
   Rotary Piston       Rotary pistons or cams rotate eccentrically and evacuates air through a check valve on the "compression" or evacuation stroke, while air from the vacuum application fills in behind it. 
   Rotary Vane       Rotary vanes are eccentrically mounted rotors and sliding vanes that compress air in diminishing volume compartments. 
   Rotary Screw       Rotary screws have two or more spindles with intermeshing screws that rotate oppositely, creating axially progressing "chambers" that move the air from suction to discharge. Larger pumps often have double suction, where air is let in from both ends to a central discharge port. Rotary screw pumps often offer good vacuum levels with pulse-free operation. 
   Scroll       In scroll technology, air is moved as intake air is compressed between the surfaces of mating involute spirals. One spiral moves to progressively push the evacuated air out to the exhaust. 
   Other       Unlisted, specialized, or proprietary mechanical vacuum technology. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Integral Backing Pump?       Integral backing pumps are high vacuum systems that includes a mechanical, sorption, or other backing pump to provide preliminary vacuum level for the high vacuum stage of the pump. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   Lubrication:       
   Your choices are...         
   Dry / Oil-less       Dry or oil-less lubrication styles use permanently sealed bearings or other isolation technology eliminate oil in the fluid train. 
   Splash Lubrication       Oil splashes onto components from bath. 
   Oil-flooded       Oil-flooded lubrication is sometimes used in rotary vane and other mechanical pump styles. This type of lubrication involves a heavy application of oil for moving parts. 
   Positive Pressure       In positive pressure lubrication, oil pressure is maintained for highest level of lubrication. 
   Other       Other unlisted or specialized lubrication technique. 
   Search Logic:      Products with the selected attribute will be returned as matches. Leaving or selecting "No Preference" will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Stages:      Stages can be sequential stages of the same technology type (mechanical or Venturi), or two or more different type pumps packaged together, such as a rough, medium, and high vacuum pump system of different technologies.
   Your choices are...         
   Single Stage       In single stage of evacuation, air is moved directly from chamber into atmosphere. 
   Two Stage       Air is evacuated in two stages for lower absolute pressure. 
   Three Stage       Three chambers are used in succession. 
   Four or More Stages       Four or more evacuation stages are employed. 
   Search Logic:      Products with the selected attribute will be returned as matches. Leaving or selecting "No Preference" will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Vacuum Pump Drive:       
   Your choices are...         
   Direct Drive       Motor is directly coupled to pump shaft. 
   Belt Drive       Motor drives pump shaft through a belt and pulleys. 
   Gear Drive       Motor is coupled to pump via a gear train. It may be used to modify speed, increase torque, etc. 
   Other       Other unlisted, specialized or proprietary drive mechanism or configuration. 
   Search Logic:      Products with the selected attribute will be returned as matches. Leaving or selecting "No Preference" will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Application
           
   Your choices are...         
   General Purpose / Industrial       General purpose uses covers a wide range of industrial and manufacturing applications. 
   Analytical / Scientific       Analytical or scientific applications include electron microscopes, analytical spectrometers, or physics experimentation. 
   Chemical / Corrosive Gas       Designed for use with chemicals and/or corrosive gases and vapors. 
   Food Processing       Food processing applications include freeze drying, conveying, and sanitary packaging. 
   Manufacturing Processing       Vacuum pumps designed for use in manufacturing applications such as plastics vacuum forming, degassing, vacuum sintering and casting, etc. 
   Medical / Laboratory       Specialized for use in highly specialized medical or biomedical laboratory applications. 
   Packaging       Vacuum packaging applications include shrink-wrapping and packaging of food, candy, electronic and medical devices and components. 
   Power Generation       Applications such as condenser venting and vapor recovery in power generation systems such as hydroelectric, nuclear, or fossil fuel power generation. 
   Pharmaceutical / Sanitary       Sanitary applications, such as pharmaceutical or food and beverage processing, require features such as sterilizability, nonabsorbent seals, and other clean components. 
   Semiconductor Manufacturing       Designed specifically for the demands of semiconductor, chip, or board manufacturing applications. 
   Other       Other unlisted, specialized, or proprietary application. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Mounting
           
   Your choices are...         
   Benchtop       Benchtop mounting is used for products small enough to mount or be placed on a bench or table. These models may include portability. 
   Cart / Portable       Portable mounts include wheels, casters, or easily movable frames for frequent relocation. 
   Floor / Skid       The device rests on floor or on a skid; they are typically used for larger vacuum pumps. 
   Permanent Installation       Permanent installation is used with very large systems or stations that are installed permanently in one place. 
   Other       Other unlisted, specialized, or proprietary mounting style. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Features
   OEM Controller / Control Panel?       Vacuum pump or vacuum system has an integral OEM controller or control panel consisting of adjustment controls more than a simple regulator knob. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   Valve Sequencing Control?       Sequence control of valve opening is critical, especially in a high vacuum system. This option denotes pumps with valve control. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   Vacuum Gauge?       Vacuum gauges have a dial, numeric, or other readout of pressure. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   Integral Trap(s)?       Traps are used to prevent backstreaming and resultant contamination from roughing pumps in high vacuum or sanitary applications. There are various trap types or technologies designed for the prevention of chamber entry by oil or water vapor, hydrocarbons, etc. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   Gas Ballast?       Atmospheric air is allowed into the compression chamber to minimize condensate in the oil and prevent corrosion. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   Magnetic Bearing?       A vacuum pump may utilize magnetic bearing where the rotor is lifted using magnetic levitation. Magnetic levitation in magnetic bearings eliminates contact and contact friction between the two surfaces. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
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Environment
   Operating Temperature:       This is the full required range of ambient operating temperature. 
   Search Logic:      User may specify either, both, or neither of the limits in a "From - To" range; when both are specified, matching products will cover entire range. Products returned as matches will meet all specified criteria.
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Product Announcements
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