Airtac MID Series Double Rod Mini Cylinder MID20X15S
The AirTAC Airtac MID Series Double Rod Mini Cylinder MID20X15S is a genuine double acting, double rod round-body mini air cylinder with a Ø20mm bore and 15mm 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
- Stroke15 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 MID20X15S
Delivering 131.9 N of thrust at 0.5 MPa in both directions, this AirTAC double-acting mini cylinder features a through-rod design that guarantees equal extend and retract forces. The twin rod exits both end covers to resist rotation and side loading, providing steady guidance for light tasks while leaving the back rod end free to trip a switch or carry a stop. Its round-body stainless steel barrel and rod offer reliable mild corrosion and washdown resistance.
Built to the ISO 6432 mounting interface, the Ø20 bore drops directly into standard mini brackets and clevises. It uses a 1/8" port and an M8x1.25 male rod thread. Because the -S suffix denotes a built-in piston magnet, this unit is fully ready for CMSG, DMSG, or EMSG position sensing. For sizing, a safe working load is roughly 79 N (about 60% of the 0.5 MPa figure), which translates to a vertical lift of about 6.7 kg with a 2:1 safety margin.
Airtac MID Series Double Rod Mini Cylinder MID20X15S Technical Specifications
| Model | Airtac MID Series Double Rod Mini Cylinder MID20X15S |
|---|---|
| Series | MID ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 15 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 MID20X15S
| MID | ISO 6432 round-body mini cylinder (double-rod). |
|---|---|
| 20 | Bore size in mm. |
| ×15 | 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 MID20X15S Is Used
Symmetric Parts Shuttle
Drives a 15 mm transfer carriage back and forth with 131.9 N of equal force, using the twin rod to prevent carriage twist without external guides.
Switch-Trip Cut-off
Uses the extended back rod end to physically trip a limit switch or flag at stroke end, confirming part presence while the -S magnet drives DMSG sensors.
Guided Staking Press
Applies a steady 79 N safe working load to stake a small component, relying on the through-rod to resist side load and keep the tooling perfectly aligned.
Is the Airtac MID Series Double Rod Mini Cylinder MID20X15S the Right Cylinder?
When sizing this 20 mm bore, step down to the MID16 (86.4 N at 0.5 MPa) for lighter duties, or step up to the MID25 (206.1 N at 0.5 MPa) if you need more push. The through-rod layout is ideal here for applications needing anti-rotation stability, a back-rod stop, or a symmetric shuttle. Mount via LB foot, FA flange, or TC trunnion, but note the SDB pivot-block is not offered on double-rod models. The fixed TPU bumper pads decelerate the stroke end but do not lock the piston; if air pressure drops, the load drifts, so use an external rod lock or pilot check valve for holding.
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 MID20X15S FAQ
It delivers equal force both ways because a rod occupies each side: 131.9 N at 0.5 MPa, 184.7 N at 0.7 MPa, and a maximum of 26.9 kgf at 1.0 MPa. Operating pressure ranges from 0.15 to 1.0 MPa, with a 1/8" port.
No, the piston will drift on air loss. The fixed TPU bumpers only soften the stroke end and do not act as a brake. For vertical holding, add an external rod lock or pilot check valve. The -S magnet allows CMSG/EMSG sensors for position feedback.
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