Airtac MIJ Adjustable Cylinder MIJ25X40-30
The AirTAC MIJ Adjustable Cylinder MIJ25X40-30 is a genuine double acting, double rod, adjustable stroke round-body mini air cylinder with a Ø25mm bore and 40mm 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
- Stroke40 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 MIJ25X40-30
Dial in your forward end position on the fly with the AirTAC MIJ25X40-30, a double-acting round-body mini cylinder featuring a 30 mm external stop screw that shortens the extend stroke from its 40 mm nominal length down to 10 mm. Because the adjuster trims only the extend end, the retract stroke remains full. This stainless-steel riveted barrel and rod construction shrugs off mild corrosion and washdown environments. It conforms to the ISO 6432 mounting interface for straightforward bracket and clevis integration.
Air connects via a 1/8" port, driving the Ø10 mm piston rod at speeds from 30 to 800 mm/s. Deceleration is handled by fixed TPU bumper pads. Note that this specific SKU lacks a magnet, so it cannot host CMSG, DMSG, or EMSG sensors without upgrading to the -S variant.
Airtac MIJ Adjustable Cylinder MIJ25X40-30 Technical Specifications
| Model | Airtac MIJ Adjustable Cylinder MIJ25X40-30 |
|---|---|
| Series | MIJ ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 40 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 MIJ25X40-30
| MIJ | ISO 6432 round-body mini cylinder (adjustable-stroke). |
|---|---|
| 25 | Bore size in mm. |
| ×40 | Stroke length in mm. |
| -30 | 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 MIJ25X40-30 Is Used
Tolerance Take-Up Clamping
Absorb fixture alignment variations by dialing the external stop nut to the exact clamping depth, leveraging the 12.5 kg vertical lift capacity to secure workpieces.
Adjustable Diverting Gate
Set precise gate travel distances on a sorting line to route packages into different lanes, relying on the stainless build to withstand dusty or mildly humid conditions.
Is the Airtac MIJ Adjustable Cylinder MIJ25X40-30 the Right Cylinder?
The 30 mm adjustment window is invaluable for absorbing mechanical tolerances during setup or covering multiple feed distances with a single part number. Mount using LB foot, FA flange, or TC trunnion brackets (the SDB pivot block is not available on this adjustable variant). Remember that the stop screw sets the end position but does not function as 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
- ✓ 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 MIJ25X40-30 FAQ
This double-acting cylinder uses a 1/8" port and a Ø10 mm rod with an M10x1.25 male thread. The theoretical maximum force is 50 kgf at 1.0 MPa.
An external screw shortens the extend stroke by up to 30 mm on-site, letting you fine-tune the forward position without changing the cylinder; the retract stroke remains fixed at 40 mm. This SKU does not include a magnet, so it cannot accept CMSG, DMSG, or EMSG sensors. You would need the -S variant for position sensing.
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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