Airtac MI25~40 Stainless Steel Mini Cylinder MI25X225SR
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI25X225SR 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 MI25X225SR
Delivering 245.3 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles robust linear motion across its 225 mm stroke. The Ø25 bore uses a 1/8" port and an M10x1.25 male rod thread. Because the barrel and piston rod are stainless steel, it resists mild corrosion and washdown better than painted alternatives. An R back cover provides an axial-in port orientation for tight layouts. Riveted construction keeps the body compact, while fixed TPU bumper pads absorb stroke-end impact.
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 with a 2:1 safety factor. The built-in piston magnet (-S) supports CMSG, DMSG and EMSG switches for position sensing. Operating pressure spans 0.15-1.0 MPa, and speeds of 30-800 mm/s suit fast cycling.
Airtac MI25~40 Stainless Steel Mini Cylinder MI25X225SR Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI25X225SR |
|---|---|
| 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 MI25X225SR
| 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 MI25X225SR Is Used
Package Diverter Gate
Actuates a routing flap on a packaging conveyor, using the 225 mm stroke to shift parcels between sorting lanes reliably.
Lab Sample Ejection
Pushes processed specimen trays out of a washdown station, relying on the stainless rod to resist moisture and mild chemicals.
Tote Pusher Arm
Shoves filled storage totes onto an adjacent roller track, taking advantage of the 245.3 N thrust to overcome carton friction.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI25X225SR the Right Cylinder?
When sizing this bore, stepping down to a Ø20 MI yields 157.0 N push at 0.5 MPa, whereas stepping up to a Ø32 provides 402.2 N. The 225 mm stroke is well within the 500 mm maximum standard stroke for this bore, keeping it a stock-friendly choice. For long strokes like this, minimize side-loading to prevent rod bending and premature seal wear. The ISO 6432 mounting interface allows standard mini-cylinder brackets, LB foot, FA flange, SDB pivot, and TC trunnion accessories to bolt straight on.
Remember that a standard double-acting cylinder drifts when air is removed or the valve centers; the TPU bumpers only decelerate the end of travel and do not function as a brake. To suspend a load safely mid-stroke, fit an external rod lock or a pilot-operated check valve.
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 MI25X225SR FAQ
This Ø25 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.
The -S suffix indicates a built-in magnet, allowing you to mount CMSG, DMSG, or EMSG switches for detection. It features fixed TPU bumper pads that decelerate the stroke end; it does not have an adjustable air cushion, which is found on the MIC variant.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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