Airtac MI25~40 Stainless Steel Mini Cylinder MI25X250SCA
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI25X250SCA 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 MI25X250SCA
Generating 245.3 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles robust linear motion tasks. The 25 mm bore operates on a 1/8" port, and the 250 mm stroke falls well within the 500 mm standard limit for this size. Its riveted stainless barrel and rod resist mild corrosion, making it highly suitable for damp production areas where painted steel alternatives would degrade. The built-in magnet (-S) directly supports CMSG, DMSG, and EMSG position switches.
Because the ISO 6432 mounting interface standard applies to this 25 mm bore, the body drops directly into standard mini-cylinder brackets and clevises without custom machining. Fixed TPU bumper pads absorb the impact at both stroke ends to protect the mechanism. For practical sizing, plan for a safe working load of roughly 147 N, which equates to lifting about 12.5 kg vertically with a 2:1 safety margin.
Airtac MI25~40 Stainless Steel Mini Cylinder MI25X250SCA Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI25X250SCA |
|---|---|
| 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 MI25X250SCA
| 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 MI25X250SCA Is Used
Package Diverting Gate
Actuates a routing flap on a logistics sorting line, using the 245.3 N push force to redirect heavy cartons at high speed.
Vertical Flap Folding
Drives a cardboard flap-folding arm on a packaging machine, safely lifting parts weighing up to 12.5 kg through its 250 mm travel.
Washdown Component Ejection
Pushes machined stainless parts out of a damp machining cell, relying on the cylinder's own stainless barrel to resist mild corrosion.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI25X250SCA the Right Cylinder?
When sizing this 25 mm bore, stepping down to a 20 mm cylinder drops the 0.5 MPa push force to 157.0 N, while moving up to a 32 mm bore increases it significantly to 402.2 N. The CA back cover provides an integrated pivot clevis for articulated rod-end loads, which is essential for accommodating the side-load geometry often introduced by a 250 mm stroke. Always verify that your rod-end alignment prevents excessive bending moments over this extended travel distance.
This SKU includes the -S piston magnet for CMSG, DMSG, or EMSG electronic and reed sensors. Remember that fixed TPU bumpers only decelerate the stroke end; they do not function as an adjustable air cushion. Furthermore, if air pressure drops or the directional valve centres, the piston will drift and cannot hold a suspended load—install an external pilot-operated check valve or rod lock if static holding is required.
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 MI25X250SCA FAQ
This 25 mm bore cylinder features a 1/8" port and an M10x1.25 male 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.
No, the piston will drift if air is lost or the valve is centred; you need an external rod lock or pilot check valve for holding. The cylinder uses fixed TPU bumper pads to decelerate at stroke ends, not an adjustable air cushion. The -S suffix denotes a built-in magnet for CMSG/DMSG/EMSG sensors, and the CA suffix indicates a rear pivot clevis.
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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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