Airtac MID Series Double Rod Mini Cylinder MID20X75S
The AirTAC Airtac MID Series Double Rod Mini Cylinder MID20X75S is a genuine double acting, double rod round-body mini air cylinder with a Ø20mm bore and 75mm 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
- Stroke75 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 MID20X75S
Delivering 131.9 N of thrust at 0.5 MPa in both directions, this AirTAC MID20X75S is a double-acting, double-rod round-body mini cylinder. Because a rod exits both end covers, the extend and retract areas are identical, providing equal force while the twin-rod geometry naturally resists rotation and side loads for steadier guiding without an external guide.
The stainless-steel barrel and rod offer mild corrosion and washdown resistance, and the unit conforms to the ISO 6432 mounting interface for standard mini brackets. Fitted with a 1/8" port and an M8x1.25 male rod thread, it includes the -S piston magnet for position sensing. For sizing, a practical safe working load is roughly 79 N (about 60% of the 0.5 MPa figure), which means it can vertically lift around 6.7 kg with a 2:1 safety margin.
Airtac MID Series Double Rod Mini Cylinder MID20X75S Technical Specifications
| Model | Airtac MID Series Double Rod Mini Cylinder MID20X75S |
|---|---|
| Series | MID ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 75 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 MID20X75S
| MID | ISO 6432 round-body mini cylinder (double-rod). |
|---|---|
| 20 | Bore size in mm. |
| ×75 | 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 MID20X75S Is Used
Symmetric Shuttle Transfer
With 131.9 N of equal force both ways, this cylinder smoothly pushes a lightweight parts tray left and right without needing an external guide to prevent rotation.
Back-Rod Switch Trip
The rear protruding rod end is free to physically trip a limit switch or carry a flag, while the front rod pushes a 6 kg jig at a safe 2:1 lifting margin.
Guided Pin Insertion
Twin-rod geometry keeps the stroke steady for pressing small pins, absorbing minor side loads without binding during repeated assembly cycles.
Is the Airtac MID Series Double Rod Mini Cylinder MID20X75S the Right Cylinder?
When sizing this 20 mm bore, step down to the MID16 (86.4 N @0.5 MPa) for lighter loads, or up to the MID25 (206.1 N @0.5 MPa) if you need more force. The through-rod design is ideal here when you need anti-rotation stability, want to trip a switch or mount a stop on the back rod end, or drive a second load simultaneously.
This SKU includes the -S magnet, enabling CMSG, DMSG, or EMSG sensors for position feedback. You can mount via LB foot, FA flange, or TC trunnion (the SDB pivot-block is not available on double-rod types). Note that the fixed TPU bumper pads only soften stroke ends; the piston will drift on air loss, so use an external rod lock or pilot check valve if you must hold a 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 MID20X75S FAQ
Because it is a double-rod cylinder, the force is equal in both directions. It delivers 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. The 1/8" port supplies air for these double-acting operations.
Yes, the -S suffix means it has a built-in magnet for CMSG, DMSG, or EMSG switches. However, it does not hold position if air is lost; the piston drifts and the fixed TPU bumpers only decelerate the stroke end. Use an external rod lock for holding loads.
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