Airtac MI25~40 Stainless Steel Mini Cylinder MI32X300SR
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI32X300SR is a genuine double acting round-body mini air cylinder with a Ø32mm bore and 300mm stroke, 1/8" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ32 mm
- Stroke300 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 MI32X300SR
Delivering 402.2 N of push force at 0.5 MPa, this double-acting round-body mini cylinder handles substantial work within a compact footprint. The stainless-steel barrel and Ø12 mm piston rod supply reliable mild-corrosion and washdown resistance, outperforming painted alternatives in damp environments. A 1/8" port feeds the bore, while the rear R cover provides an axial-in port orientation for tight machinery layouts.
Plan for roughly 241 N of actual work at 0.5 MPa to maintain a safe margin, which equates to lifting about 20.5 kg vertically with a 2:1 safety factor. Fixed TPU bumper pads absorb the impact at the stroke ends to protect the mechanism. Because this SKU includes the -S magnet, it is fully ready for CMSG, DMSG or EMSG position switches.
Airtac MI25~40 Stainless Steel Mini Cylinder MI32X300SR Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI32X300SR |
|---|---|
| Series | MI mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 300 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 MI32X300SR
| MI | round-body mini cylinder (double-acting). |
|---|---|
| 32 | Bore size in mm. |
| ×300 | 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 MI32X300SR Is Used
Package Diverting Gate
Actuates a heavy routing flap on a logistics conveyor, using the 402.2 N thrust to push dense parcels onto secondary sorting chutes.
Volumetric Fill Head
Raises and lowers a filling nozzle assembly into bulk liquid containers, relying on the washdown-ready stainless body for hygiene compliance.
Pallet Stopper Arm
Deploys a 300 mm stroke barrier to halt incoming pallets at a wrapping station, safely absorbing the impact via the fixed TPU pads.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI32X300SR the Right Cylinder?
When sizing this 32 mm bore, stepping down to a 25 mm version drops the 0.5 MPa push force to 245.3 N, whereas moving up to a 40 mm bore yields 628.3 N. The 300 mm stroke is well within the 500 mm maximum standard stroke for this bore, keeping the unit as a readily available configuration. Be mindful of side loads on the extended rod to prevent premature seal wear.
Remember that venting the air supply causes the piston to drift, as the TPU pads only decelerate the end-of-stroke impact without locking the rod. To suspend a load securely during an air loss or valve centering event, integrate an external rod lock or a pilot-operated check valve. Mounting options include LB foot, FA flange, SDB pivot and TC trunnion brackets to suit your frame.
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 MI32X300SR FAQ
This 32 mm 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, 563 N push and 483.8 N pull at 0.7 MPa, with a theoretical maximum force of 82 kgf at 1.0 MPa.
Yes, the -S suffix denotes an integrated magnet compatible with CMSG, DMSG and EMSG switches. The cylinder does not hold position if air is lost; the piston drifts and the fixed TPU bumper pads only decelerate the stroke end, so add an external rod lock for suspended loads.
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Genuine AirTAC parts produced by AirTAC factory.
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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Most inquiries answered within 7-8 hours.
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