Airtac MIJ Adjustable Cylinder MIJ25X80-40
The AirTAC MIJ Adjustable Cylinder MIJ25X80-40 is a genuine double acting, double rod, adjustable stroke round-body mini air cylinder with a Ø25mm bore and 80mm 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
- Stroke80 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 MIJ25X80-40
Trimming the forward end by up to 40 mm via an external stop screw, the AirTAC MIJ25X80-40 lets you dial in the exact extend position from 40 to 80 mm without changing the cylinder. The stainless-steel barrel and Ø10 mm piston rod shrug off mild corrosion and washdown environments.
Built to the ISO 6432 mounting interface for Ø8-Ø25 bores, it drops directly into standard mini brackets and clevises. The 1/8" air port feeds the chamber, while fixed TPU bumper pads decelerate the piston at the stroke ends. This SKU lacks the -S magnet, so it cannot host CMSG, DMSG, or EMSG sensors; specify the -S variant if you require position detection.
Airtac MIJ Adjustable Cylinder MIJ25X80-40 Technical Specifications
| Model | Airtac MIJ Adjustable Cylinder MIJ25X80-40 |
|---|---|
| Series | MIJ ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 80 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 MIJ25X80-40
| MIJ | ISO 6432 round-body mini cylinder (adjustable-stroke). |
|---|---|
| 25 | Bore size in mm. |
| ×80 | 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 MIJ25X80-40 Is Used
Variable Height Diverter
Set the exact 45 to 80 mm push-out to deflect packages of varying sizes on a belt line without swapping actuator hardware.
Tolerance Take-Up Clamp
Absorb part-length variances in a machining cell by fine-tuning the 245.3 N clamping endpoint on site via the stop screw.
Adjustable Carton Stop
Stage cartons precisely at a sealing head by trimming the forward stroke, using the 12.5 kg vertical lift capacity to hold flaps.
Is the Airtac MIJ Adjustable Cylinder MIJ25X80-40 the Right Cylinder?
When sizing this 25 mm bore, stepping down to a 20 mm MIJ drops the 0.5 MPa push force to 157 N, whereas moving up to a 32 mm bore yields 402 N. The 40 mm adjustment window is ideal for absorbing mechanical tolerances or matching multiple part heights in a single setup. The external screw sets the extend endpoint only; retract remains full.
Because this is a double-acting cylinder, it will drift and drop its load if air pressure is lost or the valve is centered—the stop screw is not a mid-stroke lock. For suspended loads, install an external rod lock or pilot check valve. Mount using LB foot, FA flange, or TC trunnion hardware; note that the SDB pivot block is not available on this adjustable-stroke variant.
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 MIJ25X80-40 FAQ
The theoretical maximum force is 50 kgf at 1.0 MPa. The air port is 1/8" and the male rod thread is M10x1.25.
An external stop screw shortens the extend stroke by up to 40 mm on site, giving a usable forward range of 40 to 80 mm; retract remains the full 80 mm. The cylinder does not hold position on air loss and will drift—the screw is not a mid-stroke lock. This non-S SKU also lacks a magnet for sensors.
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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