Airtac MIJ Adjustable Cylinder MIJ25X70-30
The AirTAC MIJ Adjustable Cylinder MIJ25X70-30 is a genuine double acting, double rod, adjustable stroke round-body mini air cylinder with a Ø25mm bore and 70mm 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
- Stroke70 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 MIJ25X70-30
Dial in a precise forward end position on the fly with the AirTAC MIJ25X70-30, a round-body stainless steel mini cylinder built for double-acting service. An external stop screw lets you shorten the extend stroke by up to 30 mm on site, yielding a usable forward range of 40 to 70 mm without changing the unit. Retract remains at the full 70 mm. The rugged riveted construction pairs a stainless barrel with a Ø10 mm piston rod to shrug off mild corrosion and washdown environments.
It conforms to the ISO 6432 mounting interface for standard mini brackets, uses a 1/8" port, and relies on fixed TPU bumper pads to decelerate the stroke ends. Because this specific SKU lacks the -S magnet, it cannot accept CMSG, DMSG, or EMSG sensors.
Airtac MIJ Adjustable Cylinder MIJ25X70-30 Technical Specifications
| Model | Airtac MIJ Adjustable Cylinder MIJ25X70-30 |
|---|---|
| Series | MIJ ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 70 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 MIJ25X70-30
| MIJ | ISO 6432 round-body mini cylinder (adjustable-stroke). |
|---|---|
| 25 | Bore size in mm. |
| ×70 | 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 MIJ25X70-30 Is Used
Staged Feed Diverter
Set a precise intermediate forward position to index products down a line, relying on the fixed TPU bumpers to absorb the impact at the end of travel.
Tolerance Take-Up Press
Compensate for mechanical wear or stack-up tolerances in a light assembly press by dialing in the exact 40 to 70 mm extend position on site.
Is the Airtac MIJ Adjustable Cylinder MIJ25X70-30 the Right Cylinder?
When sizing this actuator, check both directions: stepping down to a Ø20 MIJ drops the 0.5 MPa push force to 157.0 N, while stepping up to a Ø32 MIJ raises it to 402.2 N. The 30 mm external adjuster is ideal for taking up mechanical tolerances or staging feeds during changeovers, letting one part number cover several intermediate stops. Remember the stop screw only trims the extend end; it is not a mid-stroke lock. If your mechanism must hold a load during air loss, add an external rod lock or pilot check valve, as the piston will drift. Mount via LB foot, FA flange, or TC trunnion (the SDB pivot block is not available 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 MIJ25X70-30 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 30 mm (usable forward range 40-70 mm); retract stays at the full 70 mm. The screw is not a mid-stroke lock, so the piston drifts on air loss. This SKU has no magnet and cannot take CMSG/DMSG/EMSG sensors; the -S variant is required for 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.
Request a Quote for Airtac MIJ Adjustable Cylinder MIJ25X70-30
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.