Incremental Rotary Encoders
Small Industrial Products

Hengstler "Standard Industrial" rotary encoders have body sizes 36mm - 80mm, and are capable of resolutions up to 10,000 ppr with IP64/67 protection. On this page we show the smaller incremental encoders, either physically smaller or with lower resolutions and protection class. These are sometimes known as Hengstler Economy Encoders.

All Hengstler small rotary encoders are RoHS compliant, UL approved and CE marked (with the exception of the PC9 panel mount encoder).

Note that the limit of resolution combined with maximum speed may depend on the "controller" or display unt which is reading the output signals from you encoder. For more information see "Encoder Controllers" page on this site.

Body Size Shaft Resolution Series
18mm Solid 100 - 152 PC9
30mm Solid 5 - 1500 RI32
39mm Solid 5 - 1024 RI38
40mm Solid 5 - 3600 RI41
40mm Solid 5 - 3600 RI42

PC9 Hengstler PC9 Panel Mount Encoders
Up to 512 ppr (specify on order)
1/4" & 1/8" shafts
5VDC
148Kb PDF

Hengstler RI32 Solid Shaft Encoders
30mm dia body. 5, 6mm shaft
5-1500 ppr (specify on order)
Push/pull output
5VDC or 10-30VDC
IP50/40. 6000 rpm max.

410Kb PDF

RI38 Hengstler RI38 Solid Shaft Encoders
39 x 39mm body 6mm shaft
5-1024 ppr (specify on order)
Push/pull output
5VDC or 10-30VDC
IP50/40. 10,000 rpm max.
322Kb PDF

RI41Hengstler RI41 series Solid Shaft Encoders
40mm dia body, 6 mm shaft
5 - 3600ppr (specify on order)
Push/pull output
5VDC or 10-30VDC
IP50/40. 10,000 rpm max

416Kb PDF

RI42 Hengstler RI42 series Solid Shaft
40mm dia body, 6 mm shaft
5 - 3600ppr (specify on order)
Push/pull output
5VDC or 10-30VDC
IP65/64. 10,000 rpm max
417Kb PDF


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