
The AirTAC Airtac MIJ Adjustable Cylinder MIJ20X75-50 is a genuine double acting, adjustable stroke round-body mini air cylinder with a Ø20mm bore and 75mm 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 your forward end position on the fly with the AirTAC MIJ20X75-50, a double-acting round-body mini cylinder featuring a 50 mm external adjustment window. By turning the stop screw, you shorten the extend stroke from its 75 mm nominal length down to 25 mm, absorbing setup tolerances without swapping hardware. Retract travel remains full length. Built with a stainless-steel barrel and rod, it handles mild washdown environments better than standard carbon units.
This Ø20 bore generates 157 N of push force at 0.5 MPa, translating to a safe working load of roughly 94 N or a 2:1 vertical lift of about 8 kg. It uses a 1/8" port and an M8x1.25 male rod thread. Because this SKU lacks the -S magnet, it cannot host CMSG, DMSG, or EMSG sensors. The ISO 6432 mounting interface ensures direct compatibility with standard mini brackets, and fixed TPU bumpers decelerate the piston at the stroke ends.
| Model | Airtac MIJ Adjustable Cylinder MIJ20X75-50 |
|---|---|
| Series | MIJ ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 75 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. |
| ×75 | Stroke length in mm. |
| -50 | 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.
Trim the extend stroke by up to 50 mm to deflect different carton sizes on a packaging line without changing the cylinder mounting.
Use the 157 N push force to secure parts, dialing the forward stop back to 25 mm for shorter blanks and out to 75 mm for longer stock.
Eject bins of varying widths from a cell, relying on the stainless build to endure occasional washdown without corroding.
If your application needs less push, the smaller MIJ16 bore provides 100.5 N at 0.5 MPa; if you need more, stepping up to the MIJ25 yields 245.3 N. The 50 mm adjustment window here is ideal for machines running multiple product sizes, letting one cylinder cover several extend stops. Remember that the stop screw only trims the extend end position—it is not a mid-stroke lock. The piston will drift on air loss, so fit an external rod lock or pilot check valve if you must hold a suspended load. You can use LB foot, FA flange, or TC trunnion mounts, but SDB pivot blocks are not available for this adjustable variant.
Quick checklist
This cylinder uses a 1/8" port. At 0.5 MPa it pushes with 157 N and pulls with 131.9 N. At 0.7 MPa the push is 219.8 N and the pull is 184.7 N. The theoretical maximum force is 32 kgf at 1.0 MPa.
An external stop screw shortens the extend stroke by up to 50 mm, giving a usable forward range of 25 to 75 mm. Retract remains full stroke. The screw only sets the end position and does not lock the piston; the cylinder will drift on air loss. Also, this non-S SKU has no magnet for sensors.
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