
The AirTAC MIJ Adjustable Cylinder MIJ40X60-20S is a genuine double acting, double rod, adjustable stroke round-body mini air cylinder with a Ø40mm bore and 60mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
Dial in your forward end position on-site with the AirTAC MIJ40X60-20S, a round-body stainless mini cylinder featuring a 20 mm extend adjustment window. An external stop screw lets you shorten the forward stroke from its 60 mm nominal length down to 40 mm, absorbing setup tolerances without changing the part number. Retract remains at the full stroke length.
The stainless-steel barrel and Ø16 mm piston rod resist mild corrosion and washdown environments. Because this is a -S variant, it includes a built-in piston magnet for direct mounting of CMSG, DMSG, or EMSG sensors. Fixed TPU bumper pads decelerate the piston at the stroke extremes. The stop screw sets the forward endpoint but is not a mid-stroke lock; the piston will drift on air loss, so add an external rod lock or pilot check valve if you need to hold a suspended load.
| Model | Airtac MIJ Adjustable Cylinder MIJ40X60-20S |
|---|---|
| Series | MIJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 60 mm |
| Acting type | Double acting, double rod, adjustable stroke |
| Port size | 1/4" |
| Rod thread | M12×1.25 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Fixed TPU bumper pads |
| Max standard stroke | Up to 500 mm |
Specifications follow the official AirTAC MI/MIC (ISO 6432) datasheet. Barrel & rod: stainless steel (round-body, riveted construction). Thread options: PT (blank) / G. Note: the Ø40 bore is a larger, non-ISO-6432 size.
| Pressure | Force (both ways) |
|---|---|
| 0.5 MPa | 528 N |
| 0.7 MPa | 739 N |
| Max (@1.0 MPa) | 108 kgf |
MIJ / MICJ are double-rod: the rear rod that carries the stroke adjuster exits the rear cover, so both piston faces lose rod area. The rod-side (annular) area is used for both directions (conservative).
| MIJ | round-body mini cylinder (adjustable-stroke). |
|---|---|
| 40 | Bore size in mm. |
| ×60 | Stroke length in mm. |
| -20 | Adjustable stroke window (mm the extend stroke can be shortened on site). |
| -S | Optional built-in magnet for CMSG / DMSG / EMSG sensors. |
MI-family variants: MI / MIC (double acting ±cushion), MSI / MTI (single acting push / pull), MID / MICD (double rod ±cushion), MIJ / MICJ (double rod, adjustable stroke ±cushion). Back covers CA / U / R / CM. Mounting LB / FA / SDB / TC.
Fine-tune the forward stop by up to 20 mm to fold varying cardboard thicknesses, relying on the 527.8 N pull force to retract the folder arm cleanly.
Trim the extend stroke precisely to mark parts without bottoming out the tooling, absorbing fixture tolerances across multiple product changeovers.
There is no larger standard MIJ bore, so for loads exceeding this you will need a different cylinder family. The 20 mm adjustment screw is ideal for taking up mechanical tolerances during changeovers, letting one SKU cover several slightly different forward stops.
Mounting options include LB foot, FA flange, and TC trunnion brackets, plus CA, U, R, and CM back covers. The SDB pivot block is not available on this adjustable-stroke variant. For position feedback, use CMSG, DMSG, or EMSG switches with this -S magnet model. A SKU without the -S suffix cannot accept a sensor.
Quick checklist
This double-acting cylinder uses a 1/4" port. The theoretical maximum force is 128.1 kgf at 1.0 MPa.
An external stop screw shortens the extend stroke by up to 20 mm on-site, giving a usable forward range of 40 to 60 mm. The retract stroke remains full length. The -S suffix means a piston magnet is built-in for CMSG, DMSG, or EMSG sensors. The cylinder uses fixed TPU bumpers, not an adjustable air cushion.
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