Airtac MI25~40 Stainless Steel Mini Cylinder MI25X15U
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI25X15U is a genuine double acting round-body mini air cylinder with a Ø25mm bore and 15mm stroke, 1/8" air ports and a stainless-steel barrel and rod for mildly corrosive environments. Its ISO 6432 mounting interface makes it a compact drop-in for standard mini-cylinder fixtures.
- BoreØ25 mm
- Stroke15 mm
- Port size1/8"
- Acting typeDouble acting
- 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 MI25~40 Stainless Steel Mini Cylinder MI25X15U
Delivering 245.3 N of push force at 0.5 MPa, this double-acting stainless-steel mini cylinder handles robust actuation in tight spaces. The 25 mm bore uses a 1/8" port and a 10 mm piston rod with an M10x1.25 male thread. Its 15 mm stroke is ideal for short clamping motions, while the U-style back cover provides a 90-degree port orientation for compact machine integration.
The riveted round-body construction pairs a stainless-steel barrel and rod to resist mild corrosion in damp or washdown environments. Fixed TPU bumper pads absorb end-of-stroke impact without adding adjustable cushioning bulk. Plan for roughly 147 N of actual work at 0.5 MPa, which translates to lifting about 12.5 kg vertically with a 2:1 safety margin. Because this SKU lacks the -S magnet, it cannot host CMSG, DMSG or EMSG position switches.
Airtac MI25~40 Stainless Steel Mini Cylinder MI25X15U Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI25X15U |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 15 mm |
| Acting type | Double acting |
| 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 | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 245 N | 206 N |
| 0.7 MPa | 344 N | 289 N |
| Max (@1.0 MPa) | 50 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac MI25~40 Stainless Steel Mini Cylinder MI25X15U
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 25 | Bore size in mm. |
| ×15 | Stroke length in mm. |
| -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 (adjustable stroke ±cushion). Back covers CA / U / R / CM. Mounting LB / FA / SDB / TC.
Where the Airtac MI25~40 Stainless Steel Mini Cylinder MI25X15U Is Used
Short-Stroke Clamping
Uses the 15 mm stroke to secure aluminium extrusions during CNC machining, leveraging the 245.3 N push force to hold parts firmly without overtravel.
Carton Flap Folding
Deploys the 90-degree U back cover to fit neatly alongside packaging conveyors, folding cardboard flaps in preparation for case sealing.
Pneumatic Ejector
Pushes finished metal stampings out of a press die area, relying on the stainless-steel rod to withstand occasional coolant mist and debris.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI25X15U the Right Cylinder?
When sizing this 15 mm stroke actuator, verify your actual load against the 245.3 N push rating at 0.5 MPa. If you need less force, the Ø20 bore provides 157.0 N push, or you can step up to the Ø32 bore for 402.2 N if this model stalls. The ISO 6432 mounting interface on this Ø25 cylinder drops directly into standard mini-cylinder brackets and clevises. You can utilise LB foot, FA flange, SDB pivot or TC trunnion mounts to suit your frame.
Remember that a standard double-acting cylinder drifts when air pressure drops or the valve centres, as the TPU bumpers only soften stroke ends rather than locking the rod. For suspended or gravity-loaded applications, install an external rod lock or a pilot-operated check valve. If your sequence requires position feedback, select the -S magnet version to enable sensing.
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 MI25~40 Stainless Steel Mini Cylinder MI25X15U FAQ
This 25 mm bore cylinder features a 1/8" port and generates 245.3 N push / 206.1 N pull at 0.5 MPa, and 343.4 N push / 288.5 N pull at 0.7 MPa. The theoretical maximum force is 50 kgf at 1.0 MPa.
No, because this specific SKU lacks the internal magnet. You must select the -S variant to mount CMSG, DMSG or EMSG magnetic switches. The unit uses fixed TPU bumper pads rather than adjustable air cushions.
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1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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