Airtac MI25~40 Stainless Steel Mini Cylinder MI25X500SU
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI25X500SU is a genuine double acting round-body mini air cylinder with a Ø25mm bore and 500mm 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
- Stroke500 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 MI25X500SU
Delivering 245.3 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles long 500 mm strokes with ease. The riveted barrel and rod shrug off mild corrosion, making it a far better choice for damp or washdown environments than painted alternatives. Because the bore is Ø25, it conforms to ISO 6432 mounting dimensions, dropping directly into standard mini-cylinder brackets and clevises for straightforward design integration.
A 500 mm travel demands attention to side loads, but the integrated fixed TPU bumper pads absorb the stroke-end impact to protect the mechanism. Plan for roughly 147 N of actual work at 0.5 MPa to maintain a safe margin, which translates to lifting about 12.5 kg vertically. The built-in magnet allows CMSG, DMSG and EMSG switches to track position, while the U-type back cover provides a 90-degree port and pivot orientation.
Airtac MI25~40 Stainless Steel Mini Cylinder MI25X500SU Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI25X500SU |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 500 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 MI25X500SU
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 25 | Bore size in mm. |
| ×500 | 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 MI25X500SU Is Used
Long-Reach Diverting
Pushes packages across a 500 mm conveyor gap using the 245.3 N thrust, with the U cover allowing a tidy 90-degree pivot mount.
Vertical Material Lift
Lifts light chutes or bins weighing up to 12.5 kg vertically, relying on the stainless build to endure humid factory conditions.
Film Roll Feed
Extends the full 500 mm to position packaging film rolls, using CMSG sensors on the magnet to confirm end-of-stroke placement.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI25X500SU the Right Cylinder?
When sizing this 25 mm bore, compare it against its neighbours: a 20 mm bore yields 157.0 N of push at 0.5 MPa, while stepping up to a 32 mm bore provides 402.2 N. Choose the 25 mm option when you need that middle-ground 245.3 N thrust. Note that a plain double-acting cylinder will drift and cannot hold a load if air pressure drops or the valve is centred; the TPU pads only decelerate the end of stroke. For vertical or suspended loads, add an external rod lock or a pilot-operated check valve.
The 1/8" port and M10x1.25 male rod thread are fixed by the bore size. The U-type back cover suits 90-degree mounting setups. With a 500 mm stroke, ensure your guiding structure prevents rod bending under heavy lateral loads. The included -S magnet enables reed or electronic sensors, operating reliably at speeds between 30 and 800 mm/s.
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 MI25X500SU 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" and the male rod thread is M10x1.25.
No, a plain double-acting cylinder drifts if air is lost and cannot hold a load; you need an external rod lock or pilot check valve for holding. It uses fixed TPU bumper pads to decelerate at the stroke end, not an adjustable air cushion. The stainless steel round body uses ISO 6432 mounting dimensions for standard brackets.
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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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