Airtac MID Series Double Rod Mini Cylinder MID20X30
The AirTAC Airtac MID Series Double Rod Mini Cylinder MID20X30 is a genuine double acting, double rod round-body mini air cylinder with a Ø20mm bore and 30mm 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
- Stroke30 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 MID20X30
Delivering 131.9 N of thrust at 0.5 MPa in both directions, this stainless steel round-body mini cylinder uses a through-rod design that exits both end covers. Because a rod occupies each side, the extend and retract forces are perfectly equal at 131.9 N (0.5 MPa) and 184.7 N (0.7 MPa). The twin-rod architecture inherently resists rotation and side loads, providing steadier guiding for light jobs without needing an external guide. The stainless barrel and rod offer mild corrosion resistance for washdown environments.
This Ø20 mm bore model features an 8 mm piston rod, an M8x1.25 male rod thread, and a 1/8" port. It conforms to the ISO 6432 mounting interface for standard mini brackets. Operating at 30-800 mm/s, it provides a safe working load of about 79 N (roughly 60% of the 0.5 MPa force) and can vertically lift around 6.7 kg with a 2:1 safety margin. Fixed TPU bumper pads decelerate the stroke ends, though they do not lock the load.
Airtac MID Series Double Rod Mini Cylinder MID20X30 Technical Specifications
| Model | Airtac MID Series Double Rod Mini Cylinder MID20X30 |
|---|---|
| Series | MID ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 30 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 MID20X30
| MID | ISO 6432 round-body mini cylinder (double-rod). |
|---|---|
| 20 | Bore size in mm. |
| ×30 | 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 MID20X30 Is Used
Symmetric Shuttle Transfer
Pushes a small workpiece carrier back and forth with 131.9 N of equal force in both directions, ensuring consistent dwell times without rotational drift.
Back-Rod Limit Tripping
Uses the rear protruding rod end to mechanically strike an external limit switch, ideal for tight spaces where mounting a magnetic sensor is not possible.
Guided Pin Insertion
Steadily drives an alignment pin into a fixture using the twin-rod anti-rotation property, handling a safe working load of 79 N without binding.
Is the Airtac MID Series Double Rod Mini Cylinder MID20X30 the Right Cylinder?
When sizing this actuator, step down to the MID16 (86.4 N @0.5 MPa) for lighter loads, or step up to the MID25 (206.1 N @0.5 MPa) if you need more force. The double-rod design is ideal when you need anti-rotation stability, want to trip a switch from the back rod end, or drive a second load simultaneously. For mounting, you can use LB foot, FA flange, or TC trunnion brackets, plus CA, U, R, or CM back covers, but note the SDB pivot-block is not available on this double-rod variant.
This specific SKU lacks a magnet, so it cannot accept CMSG, DMSG, or EMSG sensors; choose the -S variant if you require position sensing. Remember that a standard cylinder does not hold position on air loss—the piston will drift. For a held load, install an external rod lock or a pilot-operated check valve, as the fixed TPU bumpers only soften the stroke end.
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 MID20X30 FAQ
Because it is a double-rod cylinder, the force is equal both ways: 131.9 N at 0.5 MPa, 184.7 N at 0.7 MPa, and a maximum theoretical force of 26.9 kgf at 1.0 MPa. It uses a 1/8" port.
No, this specific SKU does not include a magnet, so it cannot accept CMSG, DMSG, or EMSG sensors. You would need the -S variant for sensing. The stainless steel build and through-rod design still provide excellent mild corrosion resistance and equal force both ways.
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