Airtac MI25~40 Stainless Steel Mini Cylinder MI25X350CM
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI25X350CM is a genuine double acting round-body mini air cylinder with a Ø25mm bore and 350mm 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
- Stroke350 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 MI25X350CM
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 piston rod naturally resist mild corrosion, giving it a real edge over painted-steel or aluminium minis in damp, food, or outdoor environments. Because it conforms to ISO 6432 mounting dimensions, it drops directly into standard mini-cylinder brackets and clevises.
Equipped with fixed TPU bumper pads, the riveted construction decelerates the piston at stroke end without offering adjustable cushioning. For real-world sizing, plan for a safe working load of about 147 N (roughly 60% of the 0.5 MPa rating), which means it can lift around 12.5 kg vertically with a 2:1 safety margin. The CM round end cover provides a clean rear finish for this 350 mm stroke configuration.
Airtac MI25~40 Stainless Steel Mini Cylinder MI25X350CM Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI25X350CM |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 350 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 MI25X350CM
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 25 | Bore size in mm. |
| ×350 | 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 MI25X350CM Is Used
Package Diverting Gate
Actuates a routing flap on a packaging line, using its 245.3 N thrust to push heavy cartons onto a secondary belt in damp washdown environments.
Pneumatic Press Pin
Drives a lightweight pinning head downward over a 350 mm travel to seat components, relying on the fixed TPU pads to absorb the end-of-stroke impact.
Textile Loom Tensioner
Maintains tension on fabric threads by extending a guide arm, with the stainless steel barrel resisting humid manufacturing conditions.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI25X350CM the Right Cylinder?
When sizing this 245.3 N (0.5 MPa) unit, stepping down to a Ø20 bore yields 157.0 N, while stepping up to a Ø32 bore provides 402.2 N. If your machine requires true end-position holding, note that a plain cylinder drifts when air is lost or the valve is centered—the TPU bumpers only soften the impact, so an external rod lock or pilot-operated check valve is required to hold a load. This specific SKU lacks a magnet, so it cannot accept CMSG, DMSG, or EMSG position switches; you must specify the -S variant to enable sensing. Finally, for a long 350 mm stroke, ensure your mounting arrangement—such as an LB foot or TC trunnion—strictly controls side loading to prevent rod bending and premature seal wear.
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 MI25X350CM FAQ
This Ø25 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, increasing to 343.4 N push and 288.5 N pull at 0.7 MPa. The theoretical maximum force is 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 order the -S variant (with magnet) to enable magnetic sensing. The unit uses fixed TPU bumper pads for deceleration, not an adjustable air cushion.
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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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Most inquiries answered within 7-8 hours.
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