Airtac MI25~40 Stainless Steel Mini Cylinder MI25X50R
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI25X50R is a genuine double acting round-body mini air cylinder with a Ø25mm bore and 50mm 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
- Stroke50 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 MI25X50R
Delivering 245.3 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles substantial work in a compact footprint. The Ø25 mm bore uses a 1/8 inch port and an M10x1.25 male rod thread. Its stainless barrel and rod resist mild corrosion, giving it a real edge over painted-steel alternatives in damp or washdown environments.
The riveted construction keeps the body light, while fixed TPU bumper pads decelerate the piston at stroke ends. Because this SKU lacks the -S magnet, it cannot accept CMSG, DMSG or EMSG position switches. For real-world sizing, plan for about 147 N of usable work at 0.5 MPa, which means it lifts roughly 12.5 kg vertically with a 2:1 safety margin. The rear R cover provides an axial-in port orientation for tight mounting spaces.
Airtac MI25~40 Stainless Steel Mini Cylinder MI25X50R Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI25X50R |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 50 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 MI25X50R
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 25 | Bore size in mm. |
| ×50 | 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 MI25X50R Is Used
Package Diverting Gate
Actuates a routing flap on a packaging line, using the 245.3 N thrust to push heavy cartons smoothly into secondary lanes.
Clamp Actuation
Secures aluminium extrusions during a CNC cutting process, applying reliable clamping force before the saw descends.
Pallet Stopper Arm
Functions as a pneumatic stop in a roller conveyor system, holding loaded pallets in place for wrapping or inspection.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI25X50R the Right Cylinder?
When sizing this 50 mm stroke unit, the neighbouring Ø20 bore offers 157.0 N push at 0.5 MPa, while stepping up to the Ø32 yields 402.2 N. This model hits a strong middle ground for 12.5 kg vertical lifts. The ISO 6432 mounting interface on this Ø25 bore drops directly into standard mini-cylinder brackets and clevises, and you can pair it with LB foot, FA flange, SDB pivot or TC trunnion hardware. If your application needs position feedback, select the -S magnet variant instead, as this base unit cannot host a sensor.
Remember that a plain double-acting cylinder drifts when air is lost or the valve is centred; the TPU bumpers only soften the stroke end and do not act as a brake. To suspend a load safely, install an external rod lock or a pilot-operated check valve. At 50 mm, side-load stress on the Ø10 mm rod is minimal, but always verify alignment to prevent 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 MI25X50R FAQ
This Ø25 mm bore cylinder features a 1/8 inch port. 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.
Yes, the Ø25 bore uses the ISO 6432 mounting interface, so it fits standard mini-cylinder clevises and brackets like LB, FA, SDB and TC. However, because this specific SKU lacks the -S magnet, it cannot accept CMSG, DMSG or EMSG switches.
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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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