
The AirTAC Airtac MIJ Adjustable Cylinder MIJ20X300-100 is a genuine double acting, adjustable stroke round-body mini air cylinder with a Ø20mm bore and 300mm 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 MIJ20X300-100, a round-body stainless steel mini cylinder built for double-acting operation. An external stop screw lets you shorten the extend stroke by up to 100 mm, yielding a usable 200 to 300 mm forward travel without swapping parts. Retract remains a full 300 mm. The 1/8" port and Ø8 mm piston rod deliver 157 N of push force at 0.5 MPa, translating to a safe working load of roughly 94 N or an 8 kg vertical lift with a 2:1 margin.
Because the barrel and rod are riveted stainless steel, the unit resists mild corrosion and washdown environments. It conforms to the ISO 6432 mounting interface for easy bracket drops, and fixed TPU bumper pads decelerate the stroke end. Note this specific SKU lacks a magnet, so it cannot host CMSG, DMSG, or EMSG sensors. The stop screw sets the endpoint but is not a mid-stroke lock; the piston will drift on air loss.
| Model | Airtac MIJ Adjustable Cylinder MIJ20X300-100 |
|---|---|
| Series | MIJ ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 300 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. |
| ×300 | Stroke length in mm. |
| -100 | 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.
Tune the extend stop by up to 100 mm to accommodate different product lengths on a packaging line without changing the cylinder hardware.
Absorb mechanical variance in a 8 kg vertical lift station by fine-tuning the forward endpoint against the workpiece.
Set a precise 250 mm extend stroke to push components into a machining fixture, relying on the 157 N thrust at 0.5 MPa.
When sizing this 20 mm bore, step down to an MIJ16 (100.5 N push @0.5 MPa) for lighter grips, or up to an MIJ25 (245.3 N push @0.5 MPa) if you need heavier thrust. The 100 mm adjustment window is ideal for taking up mechanical tolerances or staging feeds across changeover jobs. You can mount via LB foot, FA flange, or TC trunnion, but the SDB pivot block is not available on this adjustable variant. If the application requires position holding on air loss, add an external rod lock or pilot check valve, as the bumper only cushions the end stop. For sensing, select the -S magnet version instead.
Quick checklist
This 20 mm bore cylinder features a 1/8" port and generates 157 N push / 131.9 N pull at 0.5 MPa, and 219.8 N push / 184.7 N pull at 0.7 MPa. The theoretical maximum force is 32 kgf at 1.0 MPa.
An external screw shortens the extend stroke by up to 100 mm on-site, while retract stays at the full 300 mm. This SKU has no magnet and cannot take sensors; you need the -S version for CMSG, DMSG, or EMSG switches.
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