Airtac MI25~40 Stainless Steel Mini Cylinder MI25X200SU
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI25X200SU is a genuine double acting round-body mini air cylinder with a Ø25mm bore and 200mm 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
- Stroke200 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 MI25X200SU
Delivering 245.3 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles demanding 200 mm stroke tasks with ease. The Ø25 bore conforms to ISO 6432 mounting dimensions, dropping directly into standard mini-cylinder brackets and clevises for straightforward design integration. Its stainless barrel and piston rod resist mild corrosion, offering a genuine advantage over painted alternatives in damp or washdown environments.
Equipped with a built-in piston magnet, the unit supports CMSG, DMSG and EMSG reed or electronic switches for position sensing. 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. Fixed TPU bumper pads absorb stroke-end impact, while the 1/8" port and M10x1.25 male rod thread ensure secure pneumatic and mechanical connections.
Airtac MI25~40 Stainless Steel Mini Cylinder MI25X200SU Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI25X200SU |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 200 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 MI25X200SU
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 25 | Bore size in mm. |
| ×200 | 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 MI25X200SU Is Used
Package Diverting Gate
Actuates a routing flap on a packaging line, using the 245.3 N thrust to push heavy cartons onto a secondary conveyor belt.
Vertical Parts Press
Lowers a light assembly head 200 mm to seat bearings, relying on the 12.5 kg safe vertical lift capacity to avoid overloading the mechanism.
Damp Storage Ejection
Ejects workpieces from a humid washing station where the stainless-steel barrel prevents mild corrosion and the U cover keeps ports compact.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI25X200SU the Right Cylinder?
When sizing this 245.3 N (0.5 MPa) unit, stepping down to a Ø20 bore yields 157.0 N of push force, whereas scaling up to a Ø32 bore provides 402.2 N for heavier cycles. The 200 mm stroke is well within the 500 mm maximum, though at full extension the Ø10 rod is susceptible to side-loading; keep the load guided to prevent rod bending. The U back cover provides a 90-degree port orientation for tight routing.
Because the standard MI lacks a physical lock, air loss or a centred valve will cause the piston to drift and drop the load. The TPU bumpers only decelerate the stroke end and cannot act as a brake. For vertical or suspended loads that must hold position, install an external rod lock or a pilot-operated check valve. The included -S magnet is essential if your control system requires CMSG, DMSG or EMSG sensors.
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 MI25X200SU 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 size is 1/8" and the male rod thread is M10x1.25.
No, the piston will drift if air is lost or the valve is centred. The fixed TPU bumper pads only decelerate the stroke end and do not function as a locking brake. You must add an external rod lock or pilot check valve to hold a vertical load.
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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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