Airtac MI25~40 Stainless Steel Mini Cylinder MI32X125SR
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI32X125SR is a genuine double acting round-body mini air cylinder with a Ø32mm bore and 125mm stroke, 1/8" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ32 mm
- Stroke125 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 MI32X125SR
Delivering 402.2 N of push force at 0.5 MPa, this double-acting round-body mini cylinder handles substantial mid-range automation tasks. The stainless-steel barrel and rod resist mild corrosion and washdown, outperforming painted alternatives in damp environments. A 1/8" port and M10x1.25 male rod thread equip this Ø32 bore unit for heavy-duty work, while fixed TPU bumper pads absorb stroke-end impact. The built-in magnet (-S) supports CMSG, DMSG and EMSG position switches.
Plan for roughly 241 N of actual work at 0.5 MPa to maintain a safe 60 percent margin. This translates to lifting about 20.5 kg vertically with a 2:1 safety factor, helping you match the cylinder to real part weights. The R back cover features an axial-in port orientation for tidy plumbing, and the 125 mm stroke operates smoothly across the 30-800 mm/s speed range.
Airtac MI25~40 Stainless Steel Mini Cylinder MI32X125SR Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI32X125SR |
|---|---|
| Series | MI mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 125 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 MI32X125SR
| 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 MI32X125SR Is Used
Package Divert Arm
Actuates a routing gate on a distribution line, using the 125 mm stroke to push medium-weight cartons onto secondary chutes.
Clamp Actuation
Secures aluminium extrusions in a machining fixture, providing 402.2 N of clamping force at 0.5 MPa without marking the part.
Pallet Stop Gate
Raises and lowers a physical stop plate to regulate pallet flow into a wrapping station, relying on the stainless build for dusty settings.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI32X125SR the Right Cylinder?
When sizing this 402.2 N (at 0.5 MPa) unit, verify if the smaller Ø25 bore (245.3 N push) is insufficient, or if the larger Ø40 (628.3 N push) is required for your payload. The 125 mm stroke is well within the 500 mm maximum, keeping rod bending stress low. Because the R cover uses an axial-in port, ensure your manifold layout accommodates rear-axial plumbing. The -S magnet allows seamless CMSG/DMSG/EMSG sensor integration.
Remember that venting the air supply causes the piston to drift, as the TPU pads only decelerate the end of travel and act as neither a lock nor a brake. To suspend a vertical load safely during an air loss event, install an external rod lock or a pilot-operated check valve.
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 MI32X125SR FAQ
This Ø32 bore cylinder features a 1/8" port and an M10x1.25 male rod thread. It generates 402.2 N push and 345.6 N pull at 0.5 MPa, increasing to 563 N push and 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 rod near the stroke end and do not function as a brake. An external rod lock or pilot check valve is required to hold a vertical load.
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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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