Airtac MI25~40 Stainless Steel Mini Cylinder MI25X40SCMTC
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI25X40SCMTC is a genuine double acting 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 makes it a compact drop-in for standard mini-cylinder fixtures.
- BoreØ25 mm
- Stroke40 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 MI25X40SCMTC
Delivering 245.3 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles substantial work in tight spaces. The Ø25 mm bore uses a 1/8" port and a 10 mm rod with an M10x1.25 male thread. Its riveted stainless barrel and rod shrug off mild corrosion, giving it a real edge over painted-steel or aluminium minis in damp, food, or outdoor spots. Fixed TPU bumper pads absorb the stroke-end impact, while the built-in -S magnet enables CMSG, DMSG, and EMSG switches for position sensing.
Because the Ø25 bore falls within the Ø8-Ø25 range, it uses the ISO 6432 mounting interface, dropping directly into standard mini-cylinder brackets and clevises for an easy spares win. For practical sizing, plan for about 147 N of real work at 0.5 MPa, which means it lifts about 12.5 kg vertically with a 2:1 safety margin. The CM round end back cover and TC trunnion mounting give you flexible pivot options on the factory floor.
Airtac MI25~40 Stainless Steel Mini Cylinder MI25X40SCMTC Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI25X40SCMTC |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 40 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 MI25X40SCMTC
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 25 | Bore size in mm. |
| ×40 | 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 MI25X40SCMTC Is Used
Packaging Machine Diverter
Uses the 245.3 N thrust at 0.5 MPa to push heavy cardboard cartons onto a secondary packing line with precise 40 mm movements.
Bottle Sorting Gate
The stainless build withstands washdown, while the CMSG sensor confirms the 40 mm stroke position to route glass bottles accurately.
Parts Ejection Arm
Lifts about 12.5 kg metal brackets vertically via the TC trunnion mount, relying on the TPU bumpers to soften the ejection impact.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI25X40SCMTC the Right Cylinder?
When sizing this unit, look at the adjacent bores: a Ø20 generates 157.0 N of push at 0.5 MPa, while a Ø32 provides 402.2 N, so the Ø25 sits perfectly in the middle for medium-force tasks. The 40 mm stroke is short and highly resistant to rod bending, but always verify that your side-load geometry stays within the TC trunnion's pivot tolerance. Remember that a plain double-acting cylinder like this drifts when air is lost or the valve is centred—the fixed TPU bumpers only decelerate the stroke end and never act as a lock or brake. If your application must hold a vertical load securely, add an external rod lock or a pilot-operated check valve to the system.
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 MI25X40SCMTC FAQ
This double-acting cylinder uses a 1/8" air port. At 0.5 MPa it pushes with 245.3 N and pulls with 206.1 N. At 0.7 MPa the push is 343.4 N and the pull is 288.5 N. The theoretical maximum force is 50 kgf at 1.0 MPa.
Yes. The Ø25 bore uses the ISO 6432 mounting interface, so it drops into standard mini-cylinder clevises and brackets. Additionally, the -S magnet allows you to mount CMSG, DMSG, or EMSG electronic or reed switches directly to the round body for position detection.
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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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