Airtac MIJ Adjustable Cylinder MIJ25X45-20S
The AirTAC MIJ Adjustable Cylinder MIJ25X45-20S is a genuine double acting, double rod, adjustable stroke round-body mini air cylinder with a Ø25mm bore and 45mm 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
- Stroke45 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 MIJ25X45-20S
Dial in a precise forward end position on-site with the AirTAC MIJ25X45-20S, a double-acting round-body mini cylinder featuring a 20mm extend-stroke adjustment window. An external stop screw lets you shorten the forward stroke from its 45mm nominal length down to 25mm without changing the unit, while the retract stroke remains full. Built with a stainless-steel barrel and piston rod, it handles mild washdown environments and conforms to the ISO 6432 mounting interface for standard mini brackets.
The 1/8" air port feeds the chamber efficiently, and the included -S piston magnet supports CMSG, DMSG, and EMSG position switches. Deceleration relies on fixed TPU bumper pads, as the stop screw dictates the end point rather than acting as a mid-stroke lock.
Airtac MIJ Adjustable Cylinder MIJ25X45-20S Technical Specifications
| Model | Airtac MIJ Adjustable Cylinder MIJ25X45-20S |
|---|---|
| Series | MIJ ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 45 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 MIJ25X45-20S
| MIJ | ISO 6432 round-body mini cylinder (adjustable-stroke). |
|---|---|
| 25 | Bore size in mm. |
| ×45 | 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.
Where the Airtac MIJ Adjustable Cylinder MIJ25X45-20S Is Used
Diverter Gate Positioning
Fine-tune the extend stop by up to 20mm to perfectly angle a diverter gate on a conveyor, adapting to varying package sizes on the fly without swapping hardware.
Variable Stroke Sealing
Accommodate multiple carton heights on a packaging line by trimming the forward stroke from 45mm down to 25mm, ensuring precise seal placement without retooling.
Is the Airtac MIJ Adjustable Cylinder MIJ25X45-20S the Right Cylinder?
The 20mm adjustability is ideal for taking up mechanical tolerances during setup or staging feeds across changeover jobs. Remember that the piston drifts on air loss, so integrate an external pilot check valve or rod lock if you need to hold a vertical load. For mounting, utilize LB foot, FA flange, or TC trunnion brackets, noting that the SDB pivot block is not offered on this adjustable 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 MIJ25X45-20S FAQ
The theoretical maximum force is 50 kgf at 1.0 MPa.
An external stop screw shortens the extend stroke by up to 20mm, setting the forward end position without locking the piston mid-travel. The -S suffix indicates a built-in magnet for CMSG, DMSG, or EMSG sensors, and the stainless build resists mild corrosion.
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.
Request a Quote for Airtac MIJ Adjustable Cylinder MIJ25X45-20S
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