Product Overview
Miniature 12 VDC Can-Stack Stepper Linear Actuator, Haydon 06-0028-AS Rev A, Unused
Condition
Unused, new old stock. The photographs show a bright, clean can and mounting bracket with no rust, no scuffing, and no wear around the mounting holes. The wrap label reads STEPPER MOTOR, 06-0028-AS REV A 12VDC 3.4W, Switch and Instrument, Inc., Waterbury, Conn., with a Waterbury phone number and two U.S. patent numbers, the fully readable one being 4,884,333. A four-digit code stamped into the bracket reads as 0184. The white nylon rotor hub is clean and unmarked on both faces. All four flying leads are bright and uncreased, with gold-colored female crimp terminals already attached. The tabs around the bearing plate carry solder that appears factory applied. No lead screw is included.
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Product Overview
The 06-0028-AS is the motor half of a Haydon can-stack linear actuator: the rotor carries a nut rather than a shaft, so a matching lead screw run through the white nylon hub turns each electrical step into linear travel instead of rotation. The wrap label carries the full identity, 06-0028-AS REV A 12VDC 3.4W over Switch and Instrument, Inc., Waterbury, Conn., which is how these arrived from the Haydon plant in Connecticut. Four color-coded leads, red, black, green and blue, roughly 13 inches long, exit the top of the can and are already fitted with gold-colored female crimp terminals. A two-hole mounting bracket is fixed to the bearing plate; against the PartsMine millimeter ruler the bracket spans about 43 mm tip to tip and the round body measures roughly 25 to 26 mm across. Step angle, holding force, coil resistance, winding configuration, and lead screw thread are not confirmed here - verify against the Haydon datasheet for 06-0028-AS before use. Sold as the motor only, exactly as photographed.
Key Features
- Part number: 06-0028-AS, Rev A
- Manufacturer marking: Switch and Instrument, Inc., Waterbury, Conn. (Haydon)
- Rated voltage: 12 VDC
- Rated power: 3.4 W
- Leads: four color-coded wires, red, black, green, blue, approximately 13 inches long
- Terminations: gold-colored female crimp terminals, factory attached
- Construction: can-stack permanent magnet body, roughly 25 to 26 mm across against the ruler
- Mounting: two-hole bracket, about 43 mm tip to tip, with round through-holes
- Rotor: white nylon hub with open center bore, protruding from both faces
- Label also shows U.S. patent 4,884,333
- Bracket stamp reads as 0184
- Condition: unused, new old stock
- Not included: lead screw
Applications
- Instrument technician replacing a failed can-stack actuator in an older analyzer or chart recorder that already has its lead screw and carriage in place
- Medical and lab equipment repairer keeping a legacy positioning stage alive where the original Haydon part number is called out on the assembly drawing
- Motion prototyper building a small 12 V axis who is sourcing a matching lead screw separately and can verify the thread against the datasheet first
- Collector or restorer of Waterbury-built Haydon motion hardware who wants an untouched, labeled example with the original patent markings
Frequently Asked Questions
Does this include the lead screw?
No. This is the motor and rotor nut only, exactly as photographed. We do not have the matching lead screws for these. If you are supplying your own, confirm the thread form and diameter against the Haydon datasheet for 06-0028-AS before ordering.
How are the leads wired?
Four color-coded leads come out of the can, red, black, green and blue, about 13 inches long, each with a gold-colored female crimp terminal already attached. The winding configuration and coil resistance are not confirmed here - ring out the coils or check the 06-0028-AS datasheet before you drive it.
How big is it?
Photographed against the PartsMine millimeter ruler, the round body measures roughly 25 to 26 mm across and the two-hole mounting bracket spans about 43 mm from tip to tip. The white rotor hub stands proud of both faces. Treat these as approximate ruler readings, not datasheet dimensions.
Has it ever been installed?
Not to our knowledge. It is listed as unused new old stock, and the photographs back that up: clean mounting holes, uncreased leads, untouched crimp terminals, and an unmarked rotor hub. The darker solder on the bearing-plate tabs is factory assembly solder, not evidence of rework.
Why buy one or two of these instead of a bulk lot somewhere else?
Because a repair usually needs one actuator, not ten. We sell the exact quantity you need, so you are not buying a forced lot of 10 or 50 to get the single motor your machine is missing. Shipping is $8 flat rate and free over $28, which for a small part like this usually lands well under the cost of a forced-quantity lot. Same or next business day from Idaho.
Waterbury, Connecticut built these little can-stacks to move a few thousandths at a time, and put the patent numbers right on the label to say so. Bring your own lead screw and this one goes back to counting steps.
