Airtac MI25~40 Stainless Steel Mini Cylinder MI32X250SCM
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI32X250SCM is a genuine double acting round-body mini air cylinder with a Ø32mm bore and 250mm stroke, 1/8" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ32 mm
- Stroke250 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 MI32X250SCM
Delivering 402.2 N of push force at 0.5 MPa, the AirTAC MI32X250SCM is a double-acting round-body mini cylinder built for demanding automation. Its stainless-steel barrel and Ø12 mm piston rod shrug off mild corrosion, making it highly suitable for damp production areas where painted steel quickly degrades. The 250 mm stroke operates at speeds between 30-800 mm/s, fed by a 1/8" port. Fixed TPU bumper pads absorb the impact at stroke extremes, while the CM round end cover provides a clean rear finish.
For practical sizing, plan for a safe working load of roughly 241 N, which is about 60 percent of the 0.5 MPa push rating. This translates to lifting a 20.5 kg mass vertically when applying a 2:1 safety margin. Because this SKU includes the -S magnet, it is fully primed for CMSG, DMSG or EMSG position sensing. Note that Ø32 falls outside the ISO 6432 standard, operating instead as a robust large-bore mini cylinder.
Airtac MI25~40 Stainless Steel Mini Cylinder MI32X250SCM Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI32X250SCM |
|---|---|
| Series | MI mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 250 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.
Theoretical Output Force (Ø32mm)
| 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.
Model Code: Airtac MI25~40 Stainless Steel Mini Cylinder MI32X250SCM
| MI | round-body mini cylinder (double-acting). |
|---|---|
| 32 | Bore size in mm. |
| ×250 | 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 MI32X250SCM Is Used
Package Diverting Gate
Actuates a routing flap on a 600 mm wide belt system, using the 402.2 N thrust to push medium-weight cartons into a sorting lane at 30-800 mm/s.
Vertical Parts Press
Lowers a 15 kg tooling head over a 250 mm travel to seat bearings, safely operating within the 20.5 kg vertical lift capacity calculated at a 2:1 margin.
Textile Loom Tensioner
Uses the stainless steel construction to maintain a damp-environment tensioning arm, resisting mild corrosion while tracking position via a DMSG sensor enabled by the -S magnet.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI32X250SCM the Right Cylinder?
When sizing this 32 mm bore, compare it against its neighbours: a 25 mm bore yields 245.3 N of push at 0.5 MPa, whereas stepping up to the 40 mm bore provides 628.3 N. The MI32X250SCM hits a strong middle ground for medium-force tasks. Remember that a standard double-acting cylinder drifts if air pressure drops or the valve is centred; the TPU bumpers only decelerate the end of stroke and will not lock the load. To hold a vertical position securely, fit an external rod lock or a pilot-operated check valve.
The 250 mm stroke is well within the 500 mm maximum standard stroke for this bore, but long extensions naturally increase rod bending susceptibility—ensure your mounting geometry minimizes side loads. You can pair the CM round end with LB foot, FA flange, SDB pivot or TC trunnion brackets to suit your frame. If your application requires adjustable end-cushioning rather than fixed bumpers, look at the MIC variable-cushion variant.
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 MI32X250SCM FAQ
This double-acting cylinder uses a 1/8" port and generates 402.2 N push / 345.6 N pull at 0.5 MPa, and 563 N push / 483.8 N pull at 0.7 MPa. The theoretical maximum force is 82 kgf at 1.0 MPa.
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 act as a brake. For suspended loads, you must install an external rod lock or pilot check valve.
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Covers non-human-caused product damage.
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