Airtac MID Series Double Rod Mini Cylinder MID20X225
The AirTAC Airtac MID Series Double Rod Mini Cylinder MID20X225 is a genuine double acting, double rod round-body mini air cylinder with a Ø20mm bore and 225mm stroke, 1/8" 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.
- BoreØ20 mm
- Stroke225 mm
- Port size1/8"
- Acting typeDouble acting, double rod
- Rod threadM8×1.25
- CushionFixed TPU bumper pads
About the Airtac MID Series Double Rod Mini Cylinder MID20X225
Delivering 131.9 N of equal force in both directions, the AirTAC MID20X225 is a double-acting, through-rod mini cylinder built with a stainless round barrel and rod for mild washdown resistance. Because a rod exits both end covers, extend and retract strokes use the same piston area, preventing the force drop you get from a single rod. The twin-rod design also resists rotation and side load, keeping guidance steady for light jobs without needing an external guide.
This 20 mm bore unit features a 1/8" port and an M8x1.25 male rod thread, moving at 30-800 mm/s. For a safe working load, expect about 79 N (roughly 60% of the 0.5 MPa figure), which translates to lifting around 6.7 kg vertically with a 2:1 safety margin. It uses the ISO 6432 mounting interface for standard mini brackets, and since this SKU lacks the -S magnet, it cannot host CMSG, DMSG, or EMSG sensors.
Airtac MID Series Double Rod Mini Cylinder MID20X225 Technical Specifications
| Model | Airtac MID Series Double Rod Mini Cylinder MID20X225 |
|---|---|
| Series | MID ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 225 mm |
| Acting type | Double acting, double rod |
| Port size | 1/8" |
| Rod thread | M8×1.25 |
| 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.
Theoretical Output Force (Ø20mm)
| Pressure | Force (both ways) |
|---|---|
| 0.5 MPa | 132 N |
| 0.7 MPa | 185 N |
| Max (@1.0 MPa) | 27 kgf |
Double-rod: a rod exits both covers, so output force is equal in both directions (rod-side area used).
Model Code: Airtac MID Series Double Rod Mini Cylinder MID20X225
| MID | ISO 6432 round-body mini cylinder (double-rod). |
|---|---|
| 20 | Bore size in mm. |
| ×225 | 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 MID Series Double Rod Mini Cylinder MID20X225 Is Used
Symmetric Shuttle Transfer
With 131.9 N of equal force both ways, this cylinder smoothly pushes a light workpiece back and forth between two stations without needing an external guide.
Back-Rod Limit Tripping
The rear protruding rod end travels 225 mm to mechanically trip an external flag or mechanical switch, useful when magnetic sensing is not installed.
Guided Stamping Push
The twin-rod construction resists rotation during a 131.9 N stamping or pressing task, keeping the tool aligned without requiring a separate guide block.
Is the Airtac MID Series Double Rod Mini Cylinder MID20X225 the Right Cylinder?
If 131.9 N at 0.5 MPa is too much, step down to the MID16, which provides 86.4 N both ways; if you need more push, the MID25 offers 206.1 N. Choose this double-rod configuration when you need anti-rotation stability, want to trip a switch from the back rod end, or need to drive a second load simultaneously. The fixed TPU bumper pads decelerate the stroke ends but do not lock the piston—if air pressure drops, the load drifts, so add an external rod lock or pilot check valve for holding.
Mounting options include LB foot, FA flange, and TC trunnion, plus CA, U, R, or CM back covers (the SDB pivot block is not available on this double-rod variant). To add position sensing, you must select the -S magnet version, as this base SKU cannot take a sensor.
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 MID Series Double Rod Mini Cylinder MID20X225 FAQ
Because it is a double-rod cylinder, the force is equal both ways: 131.9 N at 0.5 MPa and 184.7 N at 0.7 MPa. The maximum theoretical force at 1.0 MPa is 26.9 kgf.
No, this specific SKU does not include a magnet, so it cannot host CMSG, DMSG, or EMSG sensors. You must order the -S variant for position sensing. The stainless steel build also provides mild corrosion resistance.
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