Airtac MI25~40 Stainless Steel Mini Cylinder MI32X120SU
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI32X120SU is a genuine double acting round-body mini air cylinder with a Ø32mm bore and 120mm stroke, 1/8" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ32 mm
- Stroke120 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 MI32X120SU
Delivering 402.2 N of push force at 0.5 MPa, the AirTAC MI32X120SU is a double-acting round-body mini cylinder built for demanding automation. Its stainless-steel barrel and Ø12 mm rod shrug off mild corrosion, making it highly suitable for damp or washdown environments where painted steel alternatives degrade. The riveted construction keeps the unit compact, while fixed TPU bumper pads absorb stroke-end impact to protect your tooling.
Equipped with a built-in piston magnet (-S), this unit supports CMSG, DMSG and EMSG switches for precise position sensing. It features a 1/8" port and a 90-degree U back cover for flexible routing. Plan for a safe working load of roughly 241 N, which lets you lift about 20.5 kg vertically with a 2:1 safety margin.
Airtac MI25~40 Stainless Steel Mini Cylinder MI32X120SU Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI32X120SU |
|---|---|
| Series | MI mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 120 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 MI32X120SU
| MI | round-body mini cylinder (double-acting). |
|---|---|
| 32 | Bore size in mm. |
| ×120 | 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 MI32X120SU Is Used
Package Diverting
Actuates routing gates on packaging lines, using its 402.2 N push force to reliably shift heavy cartons at high speeds.
Textile Loom Tensioning
Maintains consistent material tension in damp textile manufacturing environments, leveraging the stainless-steel build to resist humidity.
Pallet Stopper Arms
Deploys a 120 mm stroke to halt pallets on roller conveyors, safely decelerating the impact with fixed TPU bumper pads.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI32X120SU 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 a 40 mm bore provides 628.3 N. The 120 mm stroke is well within the 500 mm maximum standard limit, though maintaining accurate guidance is recommended to prevent rod bending over this travel distance. This SKU includes the -S magnet for sensors and the U-style 90-degree rear cover.
Remember that standard double-acting operation means the piston will drift if air pressure drops or the valve is centred; the TPU bumpers only decelerate the stroke end and do not function as a braking lock. To suspend a load safely during an emergency stop, integrate an external rod lock or a pilot-operated check valve into your pneumatic circuit.
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 MI32X120SU FAQ
This double-acting cylinder uses a 1/8" port and generates a push force of 402.2 N and a pull force of 345.6 N at 0.5 MPa. At 0.7 MPa, push increases to 563 N and pull to 483.8 N. The theoretical maximum force is 82 kgf at 1.0 MPa.
Yes, the -S suffix indicates a built-in magnet compatible with CMSG, DMSG and EMSG switches. The U back cover provides a 90-degree port and mounting orientation, while the stainless round-body design omits tie-rods for a smooth, compact profile.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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