
The AirTAC Airtac MIJ Adjustable Cylinder MIJ10X40-20 is a genuine double acting, adjustable stroke round-body mini air cylinder with a Ø10mm bore and 40mm stroke, M5×0.8 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 the AirTAC MIJ10X40-20, 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 20 mm directly on the machine, providing a usable forward range of 20 to 40 mm without changing the part number. The retract stroke remains at the full 40 mm.
Featuring a 10 mm bore and an M5x0.8 air port, this unit delivers a push force of 39.3 N and a pull force of 33 N at 0.5 MPa. That translates to a safe working load of roughly 24 N, or the ability to vertically lift about 2 kg with a 2:1 safety margin. The stainless barrel and rod resist mild corrosion and washdown environments. It conforms to the ISO 6432 mounting interface for standard mini brackets, and because this specific SKU lacks the -S magnet option, it cannot host CMSG, DMSG, or EMSG sensors.
| Model | Airtac MIJ Adjustable Cylinder MIJ10X40-20 |
|---|---|
| Series | MIJ ISO 6432 mini cylinder |
| Bore size | Ø10 mm |
| Stroke | 40 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | M5×0.8 |
| Rod thread | M4×0.7 |
| 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 200 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 | 39 N | 33 N |
| 0.7 MPa | 55 N | 46 N |
| Max (@1.0 MPa) | 8 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). |
|---|---|
| 10 | Bore size in mm. |
| ×40 | 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.
Ejects small stamped parts on an assembly line, using the 20 mm stop screw to dial in the exact push distance and compensate for fixture wear without swapping cylinders.
Actuates a routing flap on a packaging conveyor, safely handling loads near the 2 kg vertical lift limit while adjusting the extend reach for different carton sizes.
Moves a testing probe into position against delicate electronics, relying on the 39.3 N push force and the adjustable forward stop to prevent overtravel damage.
When sizing this actuator, compare its 39.3 N push force at 0.5 MPa against adjacent bores: step down to an 8 mm bore for 25.1 N if loads are very light, or move up to a 12 mm bore for 56.5 N when you need extra thrust. The 20 mm adjustment window is ideal for taking up mechanical tolerances during setup or covering multiple stop positions with one assembly.
Remember that the external screw only trims the extend end point; it does not function as a mid-stroke lock. The piston will drift if air pressure is lost, so add an external rod lock or pilot check valve for holding suspended loads. For mounting, you can use LB foot, FA flange, or TC trunnion brackets, but note that the SDB pivot block is not available on this adjustable variant. Fixed TPU bumper pads decelerate the stroke ends across the 30-800 mm/s speed range.
Quick checklist
This 10 mm bore cylinder uses an M5x0.8 air port and delivers a push force of 39.3 N and a pull force of 33 N at 0.5 MPa. At 0.7 MPa, the push force is 55 N and the pull force is 46.1 N. The theoretical maximum force is 8 kgf at 1.0 MPa.
An external stop screw shortens the extend stroke by up to 20 mm on-site, giving a usable forward range of 20 to 40 mm, while retract remains at the full 40 mm. The screw only sets the end position and does not lock the piston mid-stroke; the cylinder will drift on air loss, so use a pilot check valve for load holding. Note that this non-S SKU has no magnet and cannot take sensors.
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