Airtac MI8~12 Stainless Steel Mini Cylinder MI12X250SU
The AirTAC Airtac MI8~12 Stainless Steel Mini Cylinder MI12X250SU is a genuine double acting round-body mini air cylinder with a Ø12mm bore and 250mm stroke, M5×0.8 air ports and a stainless-steel barrel and rod for mildly corrosive environments. Its ISO 6432 mounting interface makes it a compact drop-in for standard mini-cylinder fixtures.
- BoreØ12 mm
- Stroke250 mm
- Port sizeM5×0.8
- Acting typeDouble acting
- Rod threadM6×1.0
- 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 MI8~12 Stainless Steel Mini Cylinder MI12X250SU
Delivering 56.5 N of push force at 0.5 MPa, this double-acting stainless-steel mini cylinder handles long 250 mm strokes within a compact riveted round body. The Ø12 mm bore uses an M5x0.8 air port and a Ø6 mm piston rod with an M6x1.0 male thread. Its stainless construction resists mild corrosion, giving it a real edge over painted alternatives in damp or washdown settings. A built-in piston magnet (-S) supports CMSG, DMSG, and EMSG switches for position sensing.
Because the 56.5 N rating is theoretical, plan for a safe working load of about 34 N of real work at 0.5 MPa. For vertical lifts, that translates to raising roughly 2.9 kg safely with a 2:1 margin. The U-type back cover provides a 90-degree port orientation for tight routing. Fixed TPU bumper pads absorb the impact at stroke ends, decelerating the piston smoothly without the tuning an adjustable cushion requires.
Airtac MI8~12 Stainless Steel Mini Cylinder MI12X250SU Technical Specifications
| Model | Airtac MI8~12 Stainless Steel Mini Cylinder MI12X250SU |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø12 mm |
| Stroke | 250 mm |
| Acting type | Double acting |
| Port size | M5×0.8 |
| Rod thread | M6×1.0 |
| 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 250 mm |
Specifications follow the official AirTAC MI/MIC (ISO 6432) datasheet. Barrel & rod: stainless steel (round-body, riveted construction). Thread options: PT (blank) / G.
Theoretical Output Force (Ø12mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 57 N | 42 N |
| 0.7 MPa | 79 N | 59 N |
| Max (@1.0 MPa) | 12 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac MI8~12 Stainless Steel Mini Cylinder MI12X250SU
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 12 | 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 MI8~12 Stainless Steel Mini Cylinder MI12X250SU Is Used
Package Deflection
Pushes lightweight cardboard cartons on a packaging line using the 56.5 N push force, with the 250 mm stroke reaching across the belt.
Lab Sample Ejection
The stainless barrel withstands mildly corrosive lab environments, ejecting sample trays precisely using the 90-degree U back cover for compact mounting.
Small Parts Sorting
Uses the built-in magnet with a DMSG sensor to confirm retraction before cycling, sorting small plastic components without adjustable cushioning.
Is the Airtac MI8~12 Stainless Steel Mini Cylinder MI12X250SU the Right Cylinder?
When sizing this 12 mm bore, dropping down to the Ø8 model reduces the push force to 25.1 N at 0.5 MPa, while stepping up to the Ø16 bore increases it substantially to 100.5 N. This makes the Ø12 a solid middle ground for lighter duty tasks. The 250 mm stroke is the maximum standard length for this bore; at full extension, minimize side loading to prevent rod bending and premature seal wear. The ISO 6432 mounting interface ensures it drops directly into standard mini-cylinder brackets and clevises.
Remember that a plain double-acting cylinder drifts when air is lost or the valve is centered—the TPU bumpers only soften the stroke end and act as neither a lock nor a brake. To suspend a load safely, integrate an external rod lock or a pilot-operated check valve into your 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 MI8~12 Stainless Steel Mini Cylinder MI12X250SU FAQ
This 12 mm bore cylinder features an M5x0.8 port and generates a push force of 56.5 N and a pull force of 42.4 N at 0.5 MPa. At 0.7 MPa, push is 79.1 N and pull is 59.4 N. The theoretical maximum force is 11.5 kgf at 1.0 MPa.
No, the piston will drift if air is lost or the valve is centered. The fixed TPU bumper pads only decelerate the piston at the stroke end and do not function as a brake. You must use an external rod lock or pilot check valve to hold a suspended 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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