
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI25X25CMTC is a genuine double acting round-body mini air cylinder with a Ø25mm bore and 25mm 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 robust actuation in tight spaces. The 25 mm bore uses a 1/8" port and a 10 mm rod, while the riveted stainless barrel shrugs off mild corrosion better than painted alternatives in damp environments. Its 25 mm stroke strikes a balance for compact ejection jobs.
Because the rated output rarely translates perfectly to real-world friction, planning for about 147 N of actual work at 0.5 MPa prevents sizing errors. Vertically, it lifts roughly 12.5 kg with a 2:1 safety margin. Fixed TPU bumper pads absorb the impact at stroke ends, and the CM round end cover pairs with the TC trunnion mount for pivoting frames. Note this SKU lacks a magnet, so it cannot host CMSG or DMSG sensors without switching to an -S variant.
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI25X25CMTC |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 25 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. |
| ×25 | 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.
Swings a lightweight sorting flap on a packaging line using the TC trunnion to pivot smoothly within the 25 mm stroke.
Pushes machined metal components out of a fixture, utilizing the 245.3 N push force to overcome initial friction.
Secures cardboard blanks during a folding process, relying on the stainless steel barrel to withstand dusty, humid plant air.
When sizing this 25 mm bore, dropping down to a 20 mm cylinder reduces the push force to 157 N at 0.5 MPa, whereas stepping up to a 32 mm bore increases it to 402 N. The TC trunnion mount supplied here suits pivoting loads, but remember a plain cylinder drifts if air pressure drops or the valve centers. The fixed bumpers only decelerate the end of stroke and never act as a lock, so suspend a load safely using an external pilot check valve or rod lock. For high-speed cycling that needs end-of-stroke tuning, consider the MIC variable cushion variant instead.
Quick checklist
This 25 mm bore cylinder features a 1/8" port and generates 245.3 N push / 206.1 N pull at 0.5 MPa, 343.4 N push / 288.5 N pull at 0.7 MPa, and a theoretical maximum of 50 kgf at 1.0 MPa.
No, this specific SKU lacks a piston magnet, so it cannot accept CMSG, DMSG, or EMSG switches. You must select an -S magnet variant for position sensing. It uses fixed TPU bumper pads for end-of-stroke deceleration rather than an adjustable air cushion.
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