Airtac MI25~40 Stainless Steel Mini Cylinder MI25X225R
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI25X225R is a genuine double acting round-body mini air cylinder with a Ø25mm bore and 225mm 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
- Stroke225 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 MI25X225R
Delivering 245.3 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles substantial work within a compact footprint. The Ø25 mm bore uses a 1/8" port and an M10x1.25 male rod thread. Its stainless barrel and rod resist mild corrosion, giving it a real edge over painted alternatives in damp or washdown environments. The R back cover features an axial-in port orientation, simplifying rear plumbing in tight spaces.
Built with fixed TPU bumper pads to decelerate the stroke end, the riveted body drops directly into standard ISO 6432 mini-cylinder brackets and clevises. Because this SKU lacks the -S magnet, it cannot accept CMSG, DMSG, or EMSG position switches. 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.
Airtac MI25~40 Stainless Steel Mini Cylinder MI25X225R Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI25X225R |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 225 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 MI25X225R
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 25 | Bore size in mm. |
| ×225 | 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 MI25X225R Is Used
Package Diverting Gate
Actuates a routing flap on a packaging line, using the 245.3 N thrust to push heavy cartons onto a secondary belt at high cycling speeds.
Vertical Parts Press
Lowers a light assembly tooling head over 225 mm to seat bearings, relying on the fixed TPU bumpers to soften the impact at the end of the downstroke.
Textile Loom Tensioner
Adjusts a fabric guide bar in a humid manufacturing environment, where the stainless steel barrel prevents mild corrosion that would degrade standard cylinders.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI25X225R the Right Cylinder?
When sizing this 225 mm stroke model, compare it against the adjacent bores: the Ø20 generates 157.0 N push at 0.5 MPa, while the larger Ø32 offers 402.2 N. If your application requires position feedback, you must select the -S magnet variant to enable sensing. This standard version cannot hold a load if air pressure drops or the valve is centered—the piston will drift, and the bumpers only soften the end of travel, so add an external rod lock or pilot check valve for suspended loads.
At 225 mm, the Ø10 mm rod is well within the 500 mm maximum standard stroke, but long strokes naturally invite side-loading. Ensure your front mounting uses an FA flange or LB foot to minimize rod bending and premature seal wear. You can also utilize TC trunnion, SDB pivot blocks, or CA, U, and CM back covers to match your machine geometry.
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 MI25X225R FAQ
This Ø25 mm bore cylinder features a 1/8" port and an M10x1.25 male rod thread. It generates 245.3 N push and 206.1 N pull at 0.5 MPa, 343.4 N push and 288.5 N pull at 0.7 MPa, with a theoretical maximum force of 50 kgf at 1.0 MPa.
No, this specific SKU does not include a magnet, so it cannot accept CMSG, DMSG, or EMSG switches. You must purchase the -S variant (MI25X225R-S) if your application requires position sensing. It uses fixed TPU bumper pads rather than an adjustable air cushion.
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Covers non-human-caused product damage.
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