
The AirTAC Airtac MIJ Adjustable Cylinder MIJ20X300-10S 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 MIJ20X300-10S, a round-body stainless steel mini cylinder. An external stop screw lets you shorten the extend stroke by up to 10 mm, yielding a usable forward travel of 290 to 300 mm without changing the physical cylinder. Retract travel remains the full 300 mm. This on-site adjustability is ideal for absorbing mechanical tolerances and handling rapid changeover jobs.
Built with a riveted stainless barrel and an Ø8 mm rod, this double-acting actuator resists mild corrosion and washdown environments. It delivers 157 N of push force at 0.5 MPa, translating to a safe working load of roughly 94 N or a vertical lift capacity of about 8 kg with a 2:1 margin. The 1/8" port feeds air to move the piston at 30-800 mm/s. Because this is an -S model, a built-in piston magnet enables position sensing with CMSG, DMSG, or EMSG switches. It conforms to the ISO 6432 mounting interface for standard mini brackets.
| Model | Airtac MIJ Adjustable Cylinder MIJ20X300-10S |
|---|---|
| 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. |
| -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.
Fine-tune the 10 mm extend stop to act as a precise physical barrier for varying carton widths on a packaging line, using the 157 N push force to halt boxes securely.
Adjust the forward end position to dial in the exact seating depth of a bearing, relying on the 94 N safe working load to press parts without over-traveling.
Set the extend stroke to push products off a shelf at a controlled distance, using the stainless construction to withstand humid or mildly washdown storage environments.
When sizing this 20 mm bore actuator, compare the thrust against adjacent bores. If 157 N push at 0.5 MPa is excessive, the smaller Ø16 bore provides 100.5 N; if you need more power, the Ø25 bore yields 245.3 N. The 10 mm external adjuster is highly useful during setup, allowing you to trim the extend end position to take up slack or hit a specific stop without swapping parts. Fixed TPU bumper pads decelerate the stroke ends, but they do not function as a mid-stroke lock. The piston will drift on air loss, so fit an external rod lock or pilot check valve if the load must be held. For mounting, select LB foot, FA flange, or TC trunnion brackets (SDB pivot-block is not available on this adjustable variant).
Quick checklist
This 20 mm bore cylinder features a 1/8" air port and an M8x1.25 male rod thread. At 0.5 MPa it pushes with 157 N and pulls with 131.9 N. At 0.7 MPa it pushes with 219.8 N and pulls with 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 10 mm on-site, letting you set the exact forward end position while retract remains full. The -S suffix indicates a built-in piston magnet, allowing you to mount CMSG, DMSG, or EMSG sensors for position detection. The stop screw sets the end position but is not a mid-stroke lock.
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