Airtac MI25~40 Stainless Steel Mini Cylinder MI25X500U
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI25X500U is a genuine double acting round-body mini air cylinder with a Ø25mm bore and 500mm 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
- Stroke500 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 MI25X500U
Delivering 245.3 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles a 500 mm stroke with a 90-degree U rear cover. The riveted stainless barrel and Ø10 mm rod shrug off mild corrosion, giving it a real edge over painted alternatives in damp or washdown settings. Because it follows ISO 6432 mounting dimensions, it drops directly into standard mini-cylinder brackets and clevises.
Plan for roughly 147 N of actual work at 0.5 MPa to maintain a safe margin, which translates to lifting about 12.5 kg vertically. This SKU lacks the -S magnet, so it cannot host CMSG, DMSG or EMSG sensors. Fixed TPU bumper pads absorb the impact at stroke extremes, operating reliably across 30-800 mm/s.
Airtac MI25~40 Stainless Steel Mini Cylinder MI25X500U Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI25X500U |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 500 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 MI25X500U
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 25 | Bore size in mm. |
| ×500 | 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 MI25X500U Is Used
Long-Reach Diverter
Pushes packages across a sorting line over a 500 mm span, using the 245.3 N push force to deflect heavy cartons reliably.
Vertical Parts Lift
Raises lightweight industrial trays weighing up to 12.5 kg, taking advantage of the stainless build to resist humid warehouse air.
90-Degree Actuation
Mounts via the U back cover in tight machine cells to drive tooling slides, benefiting from the compact ISO 6432 mounting footprint.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI25X500U the Right Cylinder?
If 245.3 N at 0.5 MPa is too much, step down to the Ø20 bore (157.0 N push); if you need more muscle, the Ø32 bore provides 402.2 N. This 500 mm stroke is the maximum standard length for the Ø25 bore, so verify side-loading to prevent rod bending over such a long extension. The 1/8" port matches the bore size to supply adequate air volume.
Remember that venting the air or centering the valve causes the piston to drift, as the TPU pads only soften the end-of-stroke impact rather than locking the rod. To suspend a load safely mid-stroke, fit an external rod lock or a pilot-operated check valve. The U-style back cover provides a 90-degree port and mounting orientation for tight spaces.
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 MI25X500U FAQ
At 0.5 MPa it provides 245.3 N push and 206.1 N pull. At 0.7 MPa it yields 343.4 N push and 288.5 N pull. The theoretical maximum force is 50 kgf at 1.0 MPa, and the air port is 1/8".
No, this specific SKU does not include a magnet. You must order the -S variant to use CMSG, DMSG or EMSG magnetic switches. This model uses fixed TPU bumper pads rather than an adjustable air cushion.
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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