Airtac MI25~40 Stainless Steel Mini Cylinder MI32X125SCM
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI32X125SCM is a genuine double acting round-body mini air cylinder with a Ø32mm bore and 125mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ32 mm
- Stroke125 mm
- Port size1/4"
- 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 MI32X125SCM
Delivering 402.2 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles heavier automation tasks with ease. The Ø32 mm bore features a 1/4" port and a Ø12 mm piston rod, while the riveted construction ensures a compact footprint without sacrificing durability. Fixed TPU bumper pads absorb impact energy at the stroke ends to protect internal components.
The integrated -S piston magnet allows direct mounting of CMSG, DMSG, or EMSG switches for position sensing, and the CM round end cover provides a clean rear closure. Because the stainless barrel and rod resist mild corrosion and washdown, this actuator outlasts painted alternatives in damp environments. Plan for a safe working load of roughly 241 N, which means it can lift about 20.5 kg vertically with a 2:1 safety margin.
Airtac MI25~40 Stainless Steel Mini Cylinder MI32X125SCM Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI32X125SCM |
|---|---|
| Series | MI mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 125 mm |
| Acting type | Double acting |
| Port size | 1/4" |
| 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 MI32X125SCM
| MI | round-body mini cylinder (double-acting). |
|---|---|
| 32 | Bore size in mm. |
| ×125 | 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 MI32X125SCM Is Used
Package Diverting Gate
Actuates a heavy routing flap on a logistics conveyor, using the 402.2 N thrust to push parcels firmly into secondary sorting chutes.
CNC Fixture Clamping
Secures heavy cast iron blocks inside a machining center, providing reliable holding power throughout the milling cycle.
Pallet Stacking Pusher
Drives a lifting platform to stack components, easily handling the 20.5 kg vertical load limit within its 125 mm travel.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI32X125SCM the Right Cylinder?
When sizing this 125 mm stroke actuator, note that stepping down to the Ø25 bore drops the 0.5 MPa push force to 245.3 N, whereas the larger Ø40 bore jumps to 628.3 N. This model includes the -S magnet for electronic or reed sensors, and the CM round end cover offers versatile rear mounting options. For applications needing adjustable end-cushioning at high speeds, consider the MIC variant instead of the fixed TPU bumpers found here.
Because a 125 mm stroke generates leverage, minimize side loads to prevent rod bending and premature seal wear. Furthermore, the TPU bumpers only decelerate the piston near the end of travel; they do not function as a brake. If the machinery loses air pressure or the valve is centered, the rod will drift, so install an external rod lock or pilot-operated check valve to suspend loads safely.
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 MI32X125SCM FAQ
This double-acting cylinder uses a 1/4" port and generates 402.2 N push and 345.6 N pull at 0.5 MPa. At 0.7 MPa, push is 563 N and pull is 483.8 N. The theoretical maximum force is 82 kgf at 1.0 MPa.
No, the fixed TPU bumper pads only decelerate the piston at stroke end and do not act as a brake. If air is lost, the rod drifts. You must use an external rod lock or pilot check valve to hold a vertical load safely.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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