Airtac MI25~40 Stainless Steel Mini Cylinder MI25X220SU
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI25X220SU is a genuine double acting round-body mini air cylinder with a Ø25mm bore and 220mm 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
- Stroke220 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 MI25X220SU
Delivering 245.3 N of push force at 0.5 MPa, this double-acting stainless-steel mini cylinder handles substantial work within a compact riveted round body. The 25 mm bore pairs with a 10 mm rod and 1/8" port to move loads efficiently, while the built-in piston magnet enables CMSG, DMSG or EMSG switches for position sensing. Its stainless barrel and rod resist mild corrosion, giving it a real edge over painted alternatives in damp or washdown environments.
Because the 220 mm stroke moves a mass over distance, the fixed TPU bumper pads absorb the end-of-travel impact to protect the mechanism. For practical sizing, plan for about 147 N of real work at 0.5 MPa rather than the absolute maximum, which equates to lifting roughly 12.5 kg vertically with a 2:1 safety margin. The rear U cover provides a 90-degree port orientation to simplify plumbing in tight spaces.
Airtac MI25~40 Stainless Steel Mini Cylinder MI25X220SU Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI25X220SU |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 220 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 MI25X220SU
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 25 | Bore size in mm. |
| ×220 | 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 MI25X220SU Is Used
Package Diverting Gate
Actuates a routing flap on a packaging line, using the 245 N push force to redirect heavy cartons at high speed.
Parts Press Insertion
Pushes bearings into housings on an assembly fixture, relying on the 220 mm stroke to reach deep into the machine bed.
Pallet Stopper Arm
Extends a stop block on a roller conveyor to halt pallets, with the stainless build surviving dusty industrial environments.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI25X220SU 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 N, whereas moving up to a 32 mm bore increases it to 402 N. Match your choice to the actual load and required speed. Remember that a standard cylinder drifts if air pressure drops or the valve is centred; the bumper pads only decelerate the stroke end and do not act as a lock. If your application must hold a vertical load securely, add an external rod lock or a pilot-operated check valve.
The 220 mm stroke demands attention to side loading. Ensure the rod guides and load are aligned precisely to prevent rod bending and premature seal wear. This SKU includes the -S magnet for sensors and uses the U back cover for 90-degree mounting.
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 MI25X220SU FAQ
At 0.5 MPa it provides 245.3 N push and 206.1 N pull. At 0.7 MPa it provides 343.4 N push and 288.5 N pull. The theoretical maximum force is 50 kgf at 1.0 MPa. The air port is 1/8".
No, it uses fixed TPU bumper pads that decelerate the piston at the stroke end. It is not an adjustable air cushion model. The -S magnet allows CMSG, DMSG and EMSG switches for position feedback.
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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