Pneumadyne, Inc. - Plymouth, MN
Manufacturer, Custom Manufacturer
ISO 9001:2008 certified manufacturer of pneumatic switches: two-way, three-way & four-way valve variety of porting options from 10-32 to 1/4 push-in. Manufacturer of pneumatic components: fittings, needle valves, regulators, shuttle valves, manifolds & custom products.
www.pneumadyne.com/operated-electric-switch...

Nol-Tec Systems, Inc. - Lino Lakes, MN
Manufacturer, Custom Manufacturer, Service Company
Manufacturer of pneumatic switches including automatic hose switches & heavy duty line switches. Types include two-way, three-way & seven-way line switches. Pneumatic switches used in dry & abrasive material handling conveying applications. Features include minimizes product degradation, cross contamination & abrasion resistance. Services include material testing, installation, technical assistance, on-site start up, troubleshooting, turnkey services & systems training.
www.nol-tec.com/solutions/switches-diverter...

Turck, Inc. - Plymouth, MN
Manufacturer, Custom Manufacturer
Worldwide manufacturer & distributor of standard & custom switches including pneumatic switches. Types of switches include interface, 1-pole, 2-pole, solid state, 8-pin plug-in, 11-pin plug-in, 11-pin sensitive, 4-pole square base plug-in, square base power, miniature power, 4-pole miniature, general purpose, low level, latching, power & timer switches. Single pole switches are available in change over contact, open contact, change over twin contact & twin open contact style switches. Specifications of 1-pole switches include maximum switching current up to 10 A, maximum switching voltage up to 250 V & ambient temperature ranging from minus 40 degrees C to plus 70 degrees C.
Brand Names: Releco
www.turck-usa.com/Products/Relays/

Honeywell Sensing and Control - Golden Valley, MN
Manufacturer, Custom Manufacturer
Six Sigma capable & AS 9100, ISO 14001, ISO 9001, TS 16949, & QS 9000 certified manufacturer of switches including ultrasonic switches, automatic electric tank switches, pneumatic switches, trigger switches, & pull chain switches. Types include environmentally-sealed, limit & enclosed, pushbutton, keyswtiches, indicators, & toggle & rocker switches. Features include gas-tight seal, light weight, & repeatability. Applications include heating systems, process pipes, feeder pipes, vessels, valves, conveyor systems, & marine power generation.

Whirl-Air-Flow Corp. - Big Lake, MN
Manufacturer, Custom Manufacturer
Custom manufacturer & distributor of pneumatic switches including two-way & three-way cast switches, two-way & three-way rubber hose switches, 90 degree diverter switches & rotary switches for bulk material handling systems. Capabilities include mechanical & electrical engineering, fabrication & pneumatic testing. Two-way & three-way cast switches direct flow of highly abrasive materials in high capacity systems. Two-way & three-way rubber hose switches direct the flow of mildly materials in low capacity systems. Rotary switches are used for systems requiring up to twelve material routes & 90 degree diverter switches are used for routing free flowing powders. ASME compliant.

E-Switch - Brooklyn Park, MN
Manufacturer, Custom Manufacturer
Pneumatic switches, ISO 9001:2000 certified manufacturer of switches, including push-button, DIP, toggle, paddle, rocker, power, level, slide, rotary, keylock, leaf, detector, snap-action switches, slide switches, sealed, illuminated pushbutton switches, SMT pushbutton switches & illuminated rocker switches.