
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI25X175SR is a genuine double acting round-body mini air cylinder with a Ø25mm bore and 175mm 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.
Delivering 245.3 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles demanding linear motion with a 175 mm stroke. 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, giving it a real edge over painted-steel alternatives in damp or washdown environments.
Equipped with a built-in piston magnet, the -S suffix enables position sensing with CMSG, DMSG or EMSG switches. Fixed TPU bumper pads absorb impact at the stroke extremes, while the R back cover provides an axial-in port orientation. For practical sizing, plan for roughly 147 N of real work at 0.5 MPa, which translates to lifting about 12.5 kg vertically with a 2:1 safety margin.
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI25X175SR |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 175 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.
| 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.
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 25 | Bore size in mm. |
| ×175 | 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.
Actuates a routing flap on a packaging conveyor, using the 245.3 N push force to deflect parcels onto secondary sorting lanes.
Adjusts yarn guide arms in humid production halls where the stainless steel barrel prevents mild corrosion and ensures consistent fabric tensioning.
Raises and lowers heavy hopper lids on ingredient bins, safely moving loads under 12.5 kg vertically via the 175 mm stroke.
When sizing this 245.3 N (0.5 MPa) unit against the AirTAC MI range, stepping down to a Ø20 bore drops the push force to 157.0 N, whereas scaling up to a Ø32 bore yields 402.2 N. This model uses a 1/8" port and an M10x1.25 male rod thread. The 175 mm stroke is well within the 500 mm maximum standard stroke for this bore, keeping it a readily available catalogue item.
Because the standard MI lacks a physical lock, the piston will drift if air pressure drops or the valve is centred; the TPU bumpers only soften the end-of-stroke impact rather than holding the load. To suspend a vertical load safely, fit an external rod lock or a pilot-operated check valve. For high-speed cycles requiring end-deceleration tuning, consider the MIC variable-cushion variant instead.
Quick checklist
This Ø25 mm bore cylinder features a 1/8" air port and an M10x1.25 male rod thread. At 0.5 MPa it provides 245.3 N push and 206.1 N pull. At 0.7 MPa the forces are 343.4 N push and 288.5 N pull. The theoretical maximum force is 50 kgf at 1.0 MPa.
Yes, the -S suffix indicates a built-in magnet compatible with CMSG, DMSG and EMSG switches. The cylinder uses fixed TPU bumper pads to decelerate at stroke ends, but it does not lock the load; the piston will drift on air loss. Use an external pilot check valve for load holding.
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