Airtac MID Series Double Rod Mini Cylinder MID20X80S
The AirTAC Airtac MID Series Double Rod Mini Cylinder MID20X80S is a genuine double acting, double rod round-body mini air cylinder with a Ø20mm bore and 80mm 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
- Stroke80 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 MID20X80S
Delivering 131.9 N of thrust at 0.5 MPa, the AirTAC MID20X80S is a double-acting, double-rod mini cylinder engineered for balanced motion. Because an 8 mm rod exits both end covers, the extend and retract forces are perfectly equal at 184.7 N at 0.7 MPa. This through-rod geometry inherently resists rotation and side loads, providing steadier guiding without an external guide for light tasks. The rear rod end remains free to trip a switch or carry a stop.
Built with a stainless-steel round barrel and piston rod, this riveted construction handles mild corrosion and washdown environments. It uses the ISO 6432 mounting interface for easy bracket integration. Fitted with a 1/8" port and an M8x1.25 male rod thread, it includes fixed TPU bumper pads. The -S suffix denotes a built-in piston magnet compatible with CMSG, DMSG, and EMSG switches. For sizing, a safe working load is roughly 79 N, moving about 6.7 kg vertically each way with a 2:1 margin.
Airtac MID Series Double Rod Mini Cylinder MID20X80S Technical Specifications
| Model | Airtac MID Series Double Rod Mini Cylinder MID20X80S |
|---|---|
| Series | MID ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 80 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 MID20X80S
| MID | ISO 6432 round-body mini cylinder (double-rod). |
|---|---|
| 20 | Bore size in mm. |
| ×80 | 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 MID20X80S Is Used
Symmetric Shuttle Transfer
Pushing a 6 kg jig back and forth on a linear rail, utilizing the 131.9 N equal force and anti-rotation twin rod for stable, balanced indexing.
Dual-Position Sensing
Tripping a CMSG reed switch from the rear rod extension while the front rod drives a 79 N packaging flap, maximizing the -S magnet capability.
Guided Reject Pusher
Diverting light bottles off a belt where the through-rod resists side loading without needing an external guide, operating safely at 0.5 MPa.
Is the Airtac MID Series Double Rod Mini Cylinder MID20X80S the Right Cylinder?
When sizing this 20 mm bore, verify your payload against the 131.9 N output at 0.5 MPa. If you need less force, stepping down to the MID16X50 yields 86.4 N; if your load is heavier, the MID25X75S provides 206.1 N. The twin-rod design is ideal when you need anti-rotation stability, want to drive a second load from the back rod, or need to trip a remote switch.
This model includes the -S magnet for CMSG, DMSG, or EMSG sensors. You can use LB foot, FA flange, or TC trunnion mounts, but the SDB pivot block is not available for this double-rod variant. Remember that fixed TPU bumpers only soften the stroke end; they do not lock the piston. If air pressure drops, the cylinder will drift, so add an external rod lock or pilot check valve to hold a suspended load.
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 MID20X80S FAQ
It delivers an equal force in both directions because the double-rod design uses the rod-side area on both faces. It outputs 131.9 N at 0.5 MPa, 184.7 N at 0.7 MPa, and reaches a maximum theoretical force of 26.9 kgf at 1.0 MPa.
The through-rod resists rotation and allows the back end to drive a second load or stop. The -S suffix means it has a built-in magnet for CMSG, DMSG, or EMSG position sensing, and the stainless steel build resists mild washdown corrosion.
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