
The AirTAC MIJ Adjustable Cylinder MIJ16X40-20 is a genuine double acting, double rod, adjustable stroke round-body mini air cylinder with a Ø16mm 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 fits standard ISO 6432 mini-cylinder mounting interfaces.
Dial in your forward end position on the fly with the AirTAC MIJ16X40-20, a round-body stainless steel mini cylinder that lets an external stop screw shorten the extend stroke by up to 20 mm. Because the retract travel remains full, you get a usable forward range of 20 to 40 mm without swapping parts. Built with a riveted stainless barrel and Ø6 mm rod, it handles mild washdown and corrosion exposure while dropping directly into standard ISO 6432 mini-cylinder brackets.
Pneumatic connections use an M5×0.8 port, and deceleration is handled by fixed TPU bumper pads. Note that this specific SKU lacks a magnet, so it cannot host CMSG, DMSG or EMSG sensors.
| Model | Airtac MIJ Adjustable Cylinder MIJ16X40-20 |
|---|---|
| Series | MIJ ISO 6432 mini cylinder |
| Bore size | Ø16 mm |
| Stroke | 40 mm |
| Acting type | Double acting, double rod, adjustable stroke |
| Port size | M5×0.8 |
| Rod thread | M6×1.0 |
| 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 | Force (both ways) |
|---|---|
| 0.5 MPa | 86 N |
| 0.7 MPa | 121 N |
| Max (@1.0 MPa) | 18 kgf |
MIJ / MICJ are double-rod: the rear rod that carries the stroke adjuster exits the rear cover, so both piston faces lose rod area. The rod-side (annular) area is used for both directions (conservative).
| MIJ | ISO 6432 round-body mini cylinder (adjustable-stroke). |
|---|---|
| 16 | 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 (double rod, adjustable stroke ±cushion). Back covers CA / U / R / CM. Mounting LB / FA / SDB / TC.
Adjust the end position on-site to accommodate different machining fixtures, using one cylinder to cover multiple stroke lengths instead of stocking several SKUs.
The integrated adjuster is ideal for taking up mechanical tolerances during setup or covering multiple intermediate stops from a single part number. Just remember the stop screw sets the end position—it is not a mid-stroke lock, and the piston will drift on air loss, so add an external rod lock or pilot check valve if you must hold a suspended load.
For mounting, you can use LB foot, FA flange or TC trunnion brackets, plus CA, U, R or CM back covers (the SDB pivot block is not offered on this adjustable variant). If your fixture requires position sensing, select the -S magnet version instead of this base model.
Quick checklist
This 16 mm bore cylinder uses an M5×0.8 port. The theoretical maximum force is 20.5 kgf at 1.0 MPa.
An external stop screw shortens the extend stroke by up to 20 mm on-site, but the retract stroke remains full. The screw only sets the forward end position—it is not a mid-stroke lock, and the cylinder will drift on air loss. Additionally, this non-S SKU has no magnet and cannot take sensors.
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