
The AirTAC Airtac MIJ Adjustable Cylinder MIJ20X30-10S is a genuine double acting, adjustable stroke round-body mini air cylinder with a Ø20mm bore and 30mm stroke, 1/8" air ports and a stainless-steel barrel and rod for mildly corrosive environments. Its ISO 6432 mounting interface makes it a compact drop-in for standard mini-cylinder fixtures.
Dial in a precise forward end position on-site with the AirTAC MIJ20X30-10S, a round-body stainless steel mini cylinder featuring a 10 mm extend-stroke adjustment window. An external stop screw lets you shorten the forward stroke from its 30 mm nominal length down to 20 mm without changing parts, while the retract stroke remains full. Built with a riveted stainless barrel and rod, it handles mild washdown environments and drops directly into standard ISO 6432 mini-cylinder brackets.
This double-acting actuator delivers 157 N of push force at 0.5 MPa, translating to a safe working load of roughly 94 N or a 2:1 margin vertical lift of about 8 kg. It uses a 1/8" port and an M8x1.25 male rod thread. The included -S piston magnet supports CMSG, DMSG, and EMSG sensors for position confirmation. Fixed TPU bumper pads decelerate the stroke ends, operating reliably at speeds from 30 to 800 mm/s.
| Model | Airtac MIJ Adjustable Cylinder MIJ20X30-10S |
|---|---|
| Series | MIJ ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 30 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | 1/8" |
| Rod thread | M8×1.25 |
| 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.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 132 N |
| 0.7 MPa | 220 N | 185 N |
| Max (@1.0 MPa) | 32 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
| MIJ | ISO 6432 round-body mini cylinder (adjustable-stroke). |
|---|---|
| 20 | Bore size in mm. |
| ×30 | Stroke length in mm. |
| -10 | 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 (adjustable stroke ±cushion). Back covers CA / U / R / CM. Mounting LB / FA / SDB / TC.
Apply up to 157 N of push force to seat small bearings, using the 10 mm adjuster to fine-tune the press depth for different housing tolerances.
Pneumatically route cartons on a line by dialing in the exact extend position to 25 mm, preventing over-travel without swapping the cylinder.
Push finished molded parts out of a fixture safely, relying on the 94 N safe working load and fixed TPU bumpers to cushion the ejection end.
When sizing this 20 mm bore, moving down to an MIJ16 lowers the 0.5 MPa push force to 100.5 N, while stepping up to an MIJ25 raises it to 245.3 N. The 10 mm external stop screw is invaluable for taking up mechanical tolerances during setup or covering several closely spaced stops with a single part number. Remember that the adjuster trims the extend end only and does not function as 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 load vertically.
For mounting, you can use LB foot, FA flange, or TC trunnion brackets, along with CA, U, R, or CM back covers, but the SDB pivot block is not available on this adjustable variant. Because this is an -S SKU, you can directly mount CMSG, DMSG, or EMSG switches to track the piston.
Quick checklist
At 0.5 MPa it provides 157 N push and 131.9 N pull. At 0.7 MPa it provides 219.8 N push and 184.7 N pull. The theoretical maximum force is 32 kgf at 1.0 MPa, and the air port size is 1/8".
An external stop screw shortens the extend stroke by up to 10 mm on-site, giving a usable forward range of 20 to 30 mm, while retract remains full. The -S suffix means it has a built-in piston magnet for CMSG, DMSG, or EMSG sensors. It is a double-acting cylinder with fixed TPU bumpers, not an adjustable air cushion.
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