
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI32X30U is a genuine double acting round-body mini air cylinder with a Ø32mm bore and 30mm stroke, 1/8" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
Delivering 402.2 N of push force at 0.5 MPa, this double-acting round-body mini cylinder handles heavier automation tasks. The stainless-steel barrel and rod resist mild corrosion and washdown, outperforming painted alternatives in damp environments. Its riveted construction remains compact, while fixed TPU bumper pads absorb stroke-end impact.
Featuring a 1/8" port and a 90-degree U back cover, it integrates easily into compact machinery. Plan for roughly 241 N of real work at 0.5 MPa, or expect it to lift about 20.5 kg vertically with a 2:1 safety margin. Because this SKU lacks a magnet, it cannot accept CMSG, DMSG or EMSG sensors without upgrading to an -S variant.
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI32X30U |
|---|---|
| Series | MI mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 30 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. Note: the Ø32 bore is a larger, non-ISO-6432 size.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | 484 N |
| Max (@1.0 MPa) | 82 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
| MI | round-body mini cylinder (double-acting). |
|---|---|
| 32 | Bore size in mm. |
| ×30 | 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.
Pushes heavy cartons off a main conveyor line using its 402.2 N thrust at 0.5 MPa.
Drives solid steel dowel pins into aluminum jigs, safely operating within the 241 N working load.
Secures thick metal plates in a machining cell using the 90-degree U back cover for tight side mounting.
This 32 mm bore sits between the 25 mm (245.3 N push @0.5 MPa) and the 40 mm (628.3 N push @0.5 MPa) sizes, giving you a clear upgrade path if loads fluctuate. The 30 mm stroke keeps the rod short and rigid, minimizing side-load bending risks. For vertical loads, remember the piston drifts if air is lost or the valve centers; add an external rod lock or pilot check valve to hold position. The fixed bumpers only decelerate the end of stroke and never act as a brake.
Quick checklist
At 0.5 MPa it pushes 402.2 N and pulls 345.6 N. At 0.7 MPa it pushes 563 N and pulls 483.8 N. The theoretical maximum force is 82 kgf at 1.0 MPa. It uses a 1/8" air port and a 12 mm rod with an M10x1.25 male thread.
No, this specific SKU lacks a piston magnet, so CMSG, DMSG and EMSG switches will not function. You must select an -S variant for sensing. The unit features a 90-degree U back cover and fixed TPU bumper pads that decelerate the stroke end without adjustable cushioning.
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