Airtac MI25~40 Stainless Steel Mini Cylinder MI25X250R
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI25X250R is a genuine double acting round-body mini air cylinder with a Ø25mm bore and 250mm 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
- Stroke250 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 MI25X250R
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 25 mm bore uses a 1/8" port and an M10x1.25 male rod thread, while the R back cover provides an axial-in port orientation for tight rear-clearance installations. Built with a rolled and riveted stainless barrel and rod, it resists mild corrosion and washdown better than painted alternatives.
At 0.5 MPa you can expect a real working load of about 147 N, which translates to lifting a 12.5 kg part vertically with a 2:1 safety margin. Fixed TPU bumper pads absorb the impact at stroke extremes without offering adjustable cushioning. Because this SKU lacks the -S suffix, it cannot host CMSG, DMSG or EMSG magnetic sensors.
Airtac MI25~40 Stainless Steel Mini Cylinder MI25X250R Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI25X250R |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 250 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 MI25X250R
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 25 | Bore size in mm. |
| ×250 | 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 MI25X250R Is Used
Package Diverting Gate
Actuates a routing flap on a packaging line, using the 245.3 N push force to redirect heavy cartons onto secondary conveyors.
Vertical Parts Lift
Raises lightweight jigs or 12.5 kg workpieces vertically between machine stations, relying on the 250 mm stroke for precise elevation changes.
Textile Loom Tensioner
Maintains tension on yarn guides within humid textile manufacturing environments, leveraging the stainless-steel construction for mild corrosion resistance.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI25X250R the Right Cylinder?
When sizing this 25 mm bore, dropping down to the Ø20 model reduces the 0.5 MPa push force to 157.0 N, whereas stepping up to the Ø32 bore yields 402.2 N. This 250 mm stroke sits well within the 500 mm maximum standard stroke, though at this extension you should carefully manage side loading to prevent rod bending. The ISO 6432 mounting interface lets you drop the unit straight into standard mini-cylinder brackets and clevises.
Remember that venting the air supply or centering the valve causes the piston to drift, as the TPU bumpers only decelerate the end of travel rather than locking the load. To suspend a weight securely mid-stroke, fit 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 MI25X250R 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 force of 50 kgf at 1.0 MPa.
The Ø25 bore adheres to ISO 6432 mounting dimensions, allowing it to fit standard mini-cylinder clevises and brackets. This specific SKU lacks the -S magnet, so it cannot support CMSG, DMSG or EMSG switches; you would need the -S variant for position sensing.
Authorized Export Seller
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.
Fast Reply
Most inquiries answered within 7-8 hours.
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