Airtac MIJ Adjustable Cylinder MIJ25X50-40S
The AirTAC MIJ Adjustable Cylinder MIJ25X50-40S is a genuine double acting, double rod, adjustable stroke round-body mini air cylinder with a Ø25mm bore and 50mm stroke, 1/8" 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.
- BoreØ25 mm
- Stroke50 mm
- Port size1/8"
- Acting typeDouble acting, double rod, adjustable stroke
- Rod threadM10×1.25
- CushionFixed TPU bumper pads
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac MIJ Adjustable Cylinder MIJ25X50-40S
Dial in a precise forward end position on-site with the AirTAC MIJ25X50-40S, a double-acting round-body mini cylinder featuring a 40 mm extend-stroke adjustment window. An external stop screw lets you shorten the forward travel anywhere from the 50 mm nominal maximum down to 10 mm, absorbing setup tolerances and covering multiple stop points with a single part number. The retract stroke remains full length.
Because this SKU includes the -S magnet, it is ready for CMSG, DMSG, or EMSG position sensing. It conforms to the ISO 6432 mounting interface for Ø8-Ø25 bores, dropping into standard mini brackets and clevises. The 1/8" port feeds air efficiently, while fixed TPU bumper pads decelerate the stroke ends.
Airtac MIJ Adjustable Cylinder MIJ25X50-40S Technical Specifications
| Model | Airtac MIJ Adjustable Cylinder MIJ25X50-40S |
|---|---|
| Series | MIJ ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 50 mm |
| Acting type | Double acting, double rod, 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.
Theoretical Output Force (Ø25mm)
| Pressure | Force (both ways) |
|---|---|
| 0.5 MPa | 206 N |
| 0.7 MPa | 289 N |
| Max (@1.0 MPa) | 42 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).
Model Code: Airtac MIJ Adjustable Cylinder MIJ25X50-40S
| MIJ | ISO 6432 round-body mini cylinder (adjustable-stroke). |
|---|---|
| 25 | Bore size in mm. |
| ×50 | 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 (double rod, adjustable stroke ±cushion). Back covers CA / U / R / CM. Mounting LB / FA / SDB / TC.
Where the Airtac MIJ Adjustable Cylinder MIJ25X50-40S Is Used
Multi-Height Forming Press
Cycle a forming tool against different material thicknesses, using the external screw to dial in the exact forward end position for each job changeover.
Tiered Pallet Push-Off
Push varying load sizes from a staging table, relying on the 12.5 kg vertical lift capacity and the 40 mm adjustment window to accommodate different pallet depths.
Is the Airtac MIJ Adjustable Cylinder MIJ25X50-40S the Right Cylinder?
The external adjuster is ideal for taking up mechanical tolerances during changeovers, but remember it only trims the extend stroke; retract travel stays fixed. Mount using LB foot, FA flange, or TC trunnion brackets, as the SDB pivot block is not offered on this adjustable variant.
Keep in mind that the stop screw sets the end position but acts purely as a mechanical stop, not a mid-stroke lock. If air pressure drops or the valve centers, the piston will drift, and the TPU bumpers only soften the impact near the stroke ends. To hold a load securely in place, integrate an external rod lock or a pilot-operated check valve into your pneumatic circuit.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G)
- ✓ Magnet (-S) for sensors?
- ✓ Back cover (CA/U/R/CM) & mount (LB/FA/SDB/TC)
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Do not dismantle the riveted front/back covers.
- check Use correct back cover (CA/U/R/CM) & mount (LB/FA/SDB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac MIJ Adjustable Cylinder MIJ25X50-40S FAQ
The theoretical maximum force is 50 kgf at 1.0 MPa. It uses a 1/8" air port and a male M10x1.25 rod thread.
An external stop screw shortens the extend stroke by up to 40 mm, letting you set the forward end position between 10 mm and 50 mm without swapping cylinders; the retract stroke remains full. The -S designation means it has a built-in piston magnet for CMSG, DMSG, or EMSG sensors. It features a stainless-steel round body and fixed TPU bumper pads.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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