Airtac MI25~40 Stainless Steel Mini Cylinder MI25X40CATC
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI25X40CATC 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 MI25X40CATC
Delivering 245.3 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles demanding short-stroke tasks. 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. Riveted construction keeps the body compact while fixed TPU bumper pads absorb the impact at stroke end.
For practical sizing, plan for roughly 147 N of usable work at 0.5 MPa, which translates to lifting about 12.5 kg vertically with a 2:1 safety margin. Because this specific SKU lacks the -S magnet, it cannot host CMSG, DMSG or EMSG sensors. The built-in CA pivot clevis and TC trunnion mounting provide immediate flexibility for pivoting machinery linkages.
Airtac MI25~40 Stainless Steel Mini Cylinder MI25X40CATC Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI25X40CATC |
|---|---|
| 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 MI25X40CATC
| 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 MI25X40CATC Is Used
Package Diverter Gate
Actuates a routing flap on a packaging line, using the 245 N output to push heavy cartons onto a secondary belt.
Press Pin Insertion
Drives a short 40 mm stroke to seat dowel pins into aluminum housings on an automated assembly fixture.
Pallet Stopper Arm
Deploys a pivoting stop block via the CA clevis to halt pallets at a scanning station within a distribution hub.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI25X40CATC the Right Cylinder?
When sizing this 25 mm bore, stepping down to the Ø20 model drops the 0.5 MPa push force to 157 N, whereas the larger Ø32 jumps to 402 N. The 40 mm stroke here is well within the 500 mm maximum, keeping the rod highly resistant to bending under side loads. Remember that the fixed TPU bumpers only decelerate the piston near the end of travel; they do not function as a lock. If your application must hold a vertical load when air pressure drops or the valve centers, you must add an external rod lock or a pilot-operated check valve to prevent drift.
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 MI25X40CATC FAQ
This 25 mm bore cylinder features a 1/8" port and an M10x1.25 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 of 50 kgf at 1.0 MPa.
No, this specific SKU does not include the -S magnet, so it cannot accept CMSG, DMSG or EMSG switches. You would need the -S variant for magnetic sensing. It conforms to ISO 6432 mounting dimensions and includes a CA clevis with TC trunnion for pivot mounting.
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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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