
The AirTAC Airtac MIJ Adjustable Cylinder MIJ32X125-40 is a genuine double acting, adjustable stroke round-body mini air cylinder with a Ø32mm bore and 125mm stroke, 1/8" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
Dial in your forward end position on the floor with the AirTAC MIJ32X125-40, a round-body stainless mini cylinder built for double-acting operation. An external stop screw lets you shorten the extend stroke by up to 40 mm on site, giving a usable forward range of 85 to 125 mm without swapping parts. The retract stroke remains full length. This riveted stainless barrel and rod construction shrugs off mild corrosion and washdown environments.
At 0.5 MPa the Ø32 bore outputs 402.2 N of push force and 345.6 N of pull, yielding a safe working load around 241 N or a vertical lift capacity of roughly 20.5 kg with a 2:1 margin. Air connects via a 1/8" port, driving the Ø12 piston rod at 30-800 mm/s. Fixed TPU bumper pads decelerate the stroke ends. Because this SKU lacks the -S magnet, it cannot accept CMSG, DMSG, or EMSG sensors.
| Model | Airtac MIJ Adjustable Cylinder MIJ32X125-40 |
|---|---|
| Series | MIJ mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 125 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | 1/8" |
| Rod thread | M10×1.25 |
| 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 Ø32 bore is a larger, non-ISO-6432 size.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | 484 N |
| Max (@1.0 MPa) | 82 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
| MIJ | round-body mini cylinder (adjustable-stroke). |
|---|---|
| 32 | Bore size in mm. |
| ×125 | Stroke length in mm. |
| -40 | 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.
Trimming the extend stroke by up to 40 mm allows precise routing of mixed-size cartons on a conveyor without physically repositioning the cylinder mount.
Use the 402.2 N push force to actuate a parts stop, dialing the forward position in and out to accept different blank heights on a machining line.
Set the exact forward end position to square up pallets of varying widths, relying on the stainless build to endure damp dock environments.
When sizing this unit, consider that stepping down to a Ø25 MIJ bore drops the 0.5 MPa push force to 245.3 N, while stepping up to a Ø40 bore raises it to 628.3 N. The 40 mm adjustment window is ideal for taking up mechanical tolerances or matching multiple stop positions during changeovers using a single part number. Note that the stop screw only sets the end position; it is not a mid-stroke lock, and the cylinder will drift on air loss. For suspended loads, install an external rod lock or pilot check valve.
Mounting options include LB foot, FA flange, and TC trunnion brackets, along with CA, U, R, and CM back covers. The SDB pivot block is not available on this adjustable-stroke variant. If your application requires position sensing, you must select the -S magnet version of this cylinder to enable electronic switches.
Quick checklist
This Ø32 bore cylinder features a 1/8" port and a Ø12 rod. It generates 402.2 N push and 345.6 N pull at 0.5 MPa, increasing to 563 N push and 483.8 N pull at 0.7 MPa. The theoretical maximum force is 82 kgf at 1.0 MPa.
An external stop screw shortens the extend stroke by up to 40 mm on site, while the retract stroke remains full. This specific SKU does not have a magnet and cannot accept sensors; you must specify the -S version to use CMSG, DMSG, or EMSG switches.
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.