
The AirTAC Airtac MIJ Adjustable Cylinder MIJ20X160-20S is a genuine double acting, adjustable stroke round-body mini air cylinder with a Ø20mm bore and 160mm 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 the fly with this stainless steel round-body mini cylinder. The external stop screw lets you shorten the extend stroke by up to 20 mm on site, giving you a usable forward range of 140 to 160 mm without swapping hardware. Retract remains at the full 160 mm. Because it carries the -S suffix, a built-in piston magnet is present for position sensing.
Built to the ISO 6432 mounting interface, this Ø20 mm double-acting actuator delivers 157 N of push force at 0.5 MPa. The stainless barrel and rod shrug off mild washdown environments. It breathes through a 1/8" port and relies on fixed TPU bumper pads to decelerate the stroke ends. For sizing, a safe working load is roughly 94 N, which translates to lifting about 8 kg vertically with a 2:1 safety margin.
| Model | Airtac MIJ Adjustable Cylinder MIJ20X160-20S |
|---|---|
| Series | MIJ ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 160 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. |
| ×160 | 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 (adjustable stroke ±cushion). Back covers CA / U / R / CM. Mounting LB / FA / SDB / TC.
Trim the extend stroke by up to 20 mm to perfectly set a diverter gate angle on a packaging line, accommodating belt wear without replacing the cylinder.
Apply the 157 N push force to seat small bearings or pins, using the external stop to control insertion depth precisely across different batch tolerances.
Use the 140 to 160 mm adjustable forward range to create multiple physical stop points for mixed-size cartons on a gravity conveyor, lifting roughly 8 kg safely.
When sizing this actuator, note that a smaller Ø16 bore yields 100.5 N of push at 0.5 MPa, while stepping up to a Ø25 bore provides 245.3 N. The integrated adjuster is ideal for taking up mechanical tolerances during setup or covering multiple stop positions with one part number. Keep in mind the stop screw only sets the forward end point; it is not a mid-stroke lock. If the application loses air, the piston will drift. To hold a load securely, you must add an external rod lock or a pilot-operated check valve.
You can mount this unit using LB foot brackets, FA flanges, or TC trunnions, but the SDB pivot block is not offered on this adjustable variant. The -S magnet enables direct fitting of CMSG, DMSG, or EMSG electronic and reed switches for end-of-stroke confirmation.
Quick checklist
This double-acting cylinder uses a 1/8" port. At 0.5 MPa it provides 157 N of push force and 131.9 N of pull force. At 0.7 MPa, push increases to 219.8 N and pull to 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 20 mm on site, but retract remains at the full 160 mm. The screw only sets the end position; it is not a mid-stroke lock. The cylinder will drift on air loss, so you need an external rod lock or pilot check valve to hold a load.
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