
The AirTAC MIJ Adjustable Cylinder MIJ40X225-50 is a genuine double acting, double rod, adjustable stroke round-body mini air cylinder with a Ø40mm bore and 225mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
Dial in your forward end position on-site with the AirTAC MIJ40X225-50, 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 50 mm, giving a usable forward range of 175 to 225 mm while keeping full retract. This on-site adjustability allows one part number to cover several stroke stops, absorbing setup tolerances without swapping cylinders.
The stainless barrel and piston rod resist mild corrosion and washdown environments. Air connects via a 1/4 inch port, and fixed TPU bumper pads decelerate the piston at the stroke ends. This SKU ships without a magnet, so it cannot accept CMSG, DMSG, or EMSG sensors.
| Model | Airtac MIJ Adjustable Cylinder MIJ40X225-50 |
|---|---|
| Series | MIJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 225 mm |
| Acting type | Double acting, double rod, adjustable stroke |
| Port size | 1/4" |
| Rod thread | M12×1.25 |
| 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. Note: the Ø40 bore is a larger, non-ISO-6432 size.
| Pressure | Force (both ways) |
|---|---|
| 0.5 MPa | 528 N |
| 0.7 MPa | 739 N |
| Max (@1.0 MPa) | 108 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 | round-body mini cylinder (adjustable-stroke). |
|---|---|
| 40 | Bore size in mm. |
| ×225 | Stroke length in mm. |
| -50 | 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.
Position heavy cardboard or metal sheeting on a line by dialing in the exact 175-225 mm extend stop to clear varying product widths without changing actuators.
Arrest pallets on a roller conveyor by adjusting the extend stroke on-site to match pallet tolerances, relying on the stainless build for dusty warehouse settings.
The 50 mm adjustment window is ideal for taking up mechanical tolerances during changeovers, letting you fine-tune the extend end without machining new hard stops. Retract remains at the full 225 mm.
Mount this cylinder using LB foot brackets, FA flanges, or TC trunnions; the SDB pivot block is not available on this adjustable-stroke variant. Back cover options include CA, U, R, and CM. Remember that the stop screw only trims the forward end position—it is not a mid-stroke lock. The piston will drift on air loss, so add an external rod lock or pilot check valve if you need to hold a suspended load.
Quick checklist
This 40 mm bore cylinder uses a 1/4 inch port and a M12x1.25 male rod thread. The theoretical maximum force is 128.1 kgf at 1.0 MPa.
An external stop screw shortens the extend stroke by up to 50 mm, setting the forward end position without affecting the full retract. This SKU lacks a magnet and cannot take position sensors; you must order the -S variant for CMSG, DMSG, or EMSG switches. Fixed TPU bumper pads absorb end impacts.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.