Airtac MIJ Adjustable Cylinder MIJ25X40-40
The AirTAC MIJ Adjustable Cylinder MIJ25X40-40 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 MIJ25X40-40
Dial in a precise forward end position on the fly with the AirTAC MIJ25X40-40, a round-body stainless steel mini cylinder built for double-acting operation. An external stop screw lets you shorten the extend stroke by up to 40 mm on-site, absorbing setup tolerances and letting one part number cover several intermediate stops without swapping hardware. The retract stroke remains full length, and the screw acts only as an end stop, not a mid-stroke lock.
The stainless barrel and rod shrug off mild corrosion and washdown, and the body conforms to ISO 6432 mini mounting dimensions. This SKU lacks a magnet, so it cannot host CMSG/DMSG/EMSG sensors; fixed TPU bumper pads decelerate the stroke ends across a 30-800 mm/s speed range. The air port is 1/8".
Airtac MIJ Adjustable Cylinder MIJ25X40-40 Technical Specifications
| Model | Airtac MIJ Adjustable Cylinder MIJ25X40-40 |
|---|---|
| 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 MIJ25X40-40
| MIJ | ISO 6432 round-body mini cylinder (adjustable-stroke). |
|---|---|
| 25 | Bore size in mm. |
| ×40 | 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 MIJ25X40-40 Is Used
Tolerance Take-Up Clamps
Trim the forward stroke on-site to absorb part variance in a light clamping station, letting the 12.5 kg vertical lift capacity secure components gently against a fixture.
Staged Package Sorting
Set intermediate extend positions to divert parcels of varying heights into specific lanes, using the external screw to fine-tune the deflection angle without changing the cylinder.
Is the Airtac MIJ Adjustable Cylinder MIJ25X40-40 the Right Cylinder?
The 40 mm adjustment window is ideal for changeover jobs where you need to nudge the forward position without machining new spacers. Remember that a standard cylinder drifts on air loss—the stop screw sets the endpoint but does not lock the load mid-stroke. For holding a suspended load, fit an external rod lock or pilot check valve. Mount via LB foot, FA flange, or TC trunnion (SDB pivot block is not offered on this adjustable variant). Because this code has no -S suffix, it cannot accept position sensors.
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 MIJ25X40-40 FAQ
This double-acting cylinder uses a 1/8" port. At 0.5 MPa it pushes 245.3 N and pulls 206.1 N. At 0.7 MPa it pushes 343.4 N and pulls 288.5 N. The theoretical maximum force is 50 kgf at 1.0 MPa.
An external stop screw shortens the extend stroke by up to 40 mm on-site, allowing you to set the exact forward end position; the retract stroke remains full. This screw is an end stop, not a mid-stroke lock, and the cylinder will drift on air loss. This SKU has no magnet, so it cannot accept CMSG/DMSG/EMSG 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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