Airtac MI25~40 Stainless Steel Mini Cylinder MI25X50SU
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI25X50SU 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 MI25X50SU
Delivering 245.3 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles substantial work in tight spaces. The riveted barrel and Ø10 mm rod shrug off mild corrosion, giving it a real edge over painted alternatives in damp or washdown settings. Its 1/8" port feeds the chamber efficiently, while fixed TPU bumper pads absorb the impact at stroke extremes without offering adjustable cushioning.
Thanks to the built-in magnet, you can track piston position with CMSG, DMSG or EMSG switches. For practical sizing, plan for about 147 N of actual work at 0.5 MPa, which means it lifts roughly 12.5 kg vertically with a 2:1 safety margin. The U-style back cover mounts at 90 degrees, simplifying compact machinery layouts.
Airtac MI25~40 Stainless Steel Mini Cylinder MI25X50SU Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI25X50SU |
|---|---|
| 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 MI25X50SU
| 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 MI25X50SU Is Used
Package Diverting Gate
Swings a lightweight routing flap on a packaging line, using the 90-degree U cover to pivot smoothly while pushing 147 N of safe working load.
Carton Flap Folding
Drives a folding arm to tuck cardboard flaps prior to sealing, benefiting from the stainless build during periodic washdowns.
Parts Ejection Chute
Pushes completed 12 kg metal brackets off an assembly fixture, operating well within the 245.3 N capacity at 0.5 MPa.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI25X50SU the Right Cylinder?
When sizing this 25 mm bore, stepping down to a 20 mm unit drops the 0.5 MPa push force to 157 N, whereas moving up to a 32 mm bore jumps it to 402 N. Choose this model when your load sits comfortably in the middle. Remember that venting the air or centering the valve lets the piston drift freely; the TPU bumpers only soften the end stops rather than locking the rod. Secure suspended loads with an external rod lock or pilot check valve.
The 50 mm stroke keeps the rod short to minimize side-load bending. Because this SKU includes the -S magnet, it is fully ready for position sensing. You can mount it via standard ISO 6432 brackets or use the 90-degree rear U cover for pivot applications.
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 MI25X50SU FAQ
At 0.5 MPa it pushes with 245.3 N and pulls with 206.1 N. At 0.7 MPa the push is 343.4 N and pull is 288.5 N. The theoretical maximum force is 50 kgf at 1.0 MPa. It uses a 1/8" air port and a Ø10 mm piston rod with an M10x1.25 male thread.
The -S suffix means it has a built-in magnet for CMSG, DMSG or EMSG switches. It does not hold position if air is lost; the piston drifts and the fixed TPU bumpers only decelerate the stroke end. Use an external rod lock or pilot check valve to hold suspended loads.
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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