
The AirTAC Airtac MI8~12 Stainless Steel Mini Cylinder MI12X220SU is a genuine double acting round-body mini air cylinder with a Ø12mm bore and 220mm 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.
Delivering 56.5 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles precise light-duty tasks. The Ø12 mm bore uses an M5×0.8 air port and an M6×1.0 male rod thread. Its riveted stainless barrel and rod shrug off mild corrosion, outperforming painted alternatives in damp environments. Fixed TPU bumper pads absorb stroke-end impacts.
Equipped with a piston magnet (-S), it supports CMSG, DMSG, and EMSG sensors for position detection. The U-style 90-degree rear cover simplifies compact pivot mounting. For practical sizing, plan for a safe working load of about 34 N, which easily lifts roughly 2.9 kg vertically with a 2:1 safety margin.
| Model | Airtac MI8~12 Stainless Steel Mini Cylinder MI12X220SU |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø12 mm |
| Stroke | 220 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.
| 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.
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 12 | Bore size in mm. |
| ×220 | 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.
Actuates a lightweight routing flap on a packaging conveyor, using the 56.5 N push force to redirect small cartons at high speeds.
Stainless construction survives humid laboratory washdowns while accurately positioning a 2.9 kg fluid dispensing head vertically.
Leverages the 220 mm stroke and 90-degree U back cover to swing open tall storage bin doors in automated retrieval systems.
This 220 mm stroke sits comfortably within the 250 mm maximum standard stroke limit for the Ø12 bore, though the extended length demands attention to side-load and rod-bending forces during operation. If your task requires less force, the Ø10 bore provides 39.3 N push at 0.5 MPa; stepping up to the Ø16 bore yields 100.5 N. The U back cover offers a 90-degree mounting orientation, and the built-in magnet enables direct CMSG/DMSG/EMSG switch integration.
Remember that a plain cylinder drifts if air pressure drops or the valve is centred, as the TPU bumpers only decelerate the stroke end without locking the load. To maintain vertical position holding, install an external rod lock or a pilot-operated check valve.
Quick checklist
The Ø12 bore features an M5×0.8 port. It generates 56.5 N push and 42.4 N pull at 0.5 MPa, increasing to 79.1 N push and 59.4 N pull at 0.7 MPa. The theoretical maximum force is 11.5 kgf at 1.0 MPa.
Yes, the -S suffix denotes a built-in piston magnet compatible with CMSG, DMSG, and EMSG switches. The cylinder uses fixed TPU bumper pads that decelerate the piston at stroke end; it does not feature an adjustable air cushion.
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