Airtac MI25~40 Stainless Steel Mini Cylinder MI25X25R
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI25X25R is a genuine double acting round-body mini air cylinder with a Ø25mm bore and 25mm 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
- Stroke25 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 MI25X25R
Delivering 245.3 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles robust linear motion in tight spaces. The Ø25 mm bore uses a 1/8" port and an M10x1.25 male rod thread. Its rear R cover features an axial-in port orientation, simplifying plumbing where side clearance is tight. The stainless barrel and rod resist mild corrosion and washdown better than painted alternatives.
Built with fixed TPU bumper pads to decelerate the stroke end, it operates at 30-800 mm/s. Because it lacks the -S suffix, this specific SKU cannot host CMSG, DMSG, or EMSG magnetic switches. Plan for roughly 147 N of actual work at 0.5 MPa, which means it lifts about 12.5 kg vertically with a 2:1 safety margin.
Airtac MI25~40 Stainless Steel Mini Cylinder MI25X25R Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI25X25R |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 25 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 MI25X25R
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 25 | Bore size in mm. |
| ×25 | 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 MI25X25R Is Used
Package Diverter Gate
Pivots a routing flap on a packaging conveyor, using the 245 N thrust to push heavy cardboard cartons onto an adjacent belt.
Clamp Actuator
Secures aluminium extrusions in a CNC machining fixture, relying on the 12.5 kg vertical lift capacity to hold the workpiece.
Pallet Stopper Pin
Deploys a physical stop block on a roller conveyor to halt incoming pallets, utilizing the compact 25 mm stroke and R axial port.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI25X25R the Right Cylinder?
Sizing around this 25 mm bore means checking neighbours: step down to a 20 mm bore for 157 N push at 0.5 MPa, or step up to a 32 mm bore for 402 N if the load exceeds 147 N. The 25 mm stroke keeps the rod short, minimizing side-load bending risks. This SKU has no -S magnet, so position sensing is impossible without switching to the -S variant. The ISO 6432 mounting interface drops directly into standard mini-cylinder brackets and clevises.
Remember that a plain cylinder drifts when air is lost or the valve centres; the TPU pads only soften the impact, they do not lock the load. For vertical or suspended loads that must hold position, install 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 MI25X25R FAQ
At 0.5 MPa it pushes 245.3 N and pulls 206.1 N. At 0.7 MPa it pushes 343.4 N and pulls 288.5 N. The theoretical maximum force is 50 kgf at 1.0 MPa. The air port is 1/8" and the male rod thread is M10x1.25.
No, this SKU lacks the -S magnet, so CMSG, DMSG, and EMSG switches will not function. You must select the -S variant for position sensing. It uses standard ISO 6432 mounting dimensions and fixed TPU bumper pads, not adjustable air cushions.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
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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