Airtac MID Series Double Rod Mini Cylinder MID40X75S
The AirTAC Airtac MID Series Double Rod Mini Cylinder MID40X75S is a genuine double acting, double rod round-body mini air cylinder with a Ø40mm bore and 75mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ40 mm
- Stroke75 mm
- Port size1/4"
- Acting typeDouble acting, double rod
- Rod threadM12×1.25
- CushionFixed TPU bumper pads
About the Airtac MID Series Double Rod Mini Cylinder MID40X75S
Delivering 527.8 N of thrust at 0.5 MPa in both directions, this stainless-steel round-body mini cylinder uses a through-rod design to equalize extend and retract forces. The twin rod exits both end covers, resisting rotation and side load for steadier guiding without external supports. Because a rod occupies each side, both faces use the pull-side area, ensuring identical power each way. The back rod end is free to trip a switch, carry a stop, or drive a second load.
Built with a Ø16 mm piston rod, an M12x1.25 male thread, and a 1/4" port, the riveted stainless construction resists mild corrosion and washdown environments. Operating at 30-800 mm/s, it provides a safe working load of about 317 N and a vertical lift capacity near 26.9 kg with a 2:1 margin. The -S suffix indicates a built-in piston magnet for CMSG, DMSG, or EMSG position sensing.
Airtac MID Series Double Rod Mini Cylinder MID40X75S Technical Specifications
| Model | Airtac MID Series Double Rod Mini Cylinder MID40X75S |
|---|---|
| Series | MID mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 75 mm |
| Acting type | Double acting, double rod |
| Port size | 1/4" |
| Rod thread | M12×1.25 |
| 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. Note: the Ø40 bore is a larger, non-ISO-6432 size.
Theoretical Output Force (Ø40mm)
| Pressure | Force (both ways) |
|---|---|
| 0.5 MPa | 528 N |
| 0.7 MPa | 739 N |
| Max (@1.0 MPa) | 108 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 MID40X75S
| MID | round-body mini cylinder (double-rod). |
|---|---|
| 40 | 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 MID40X75S Is Used
Symmetric Pressing
Ideal for pressing tasks requiring 527.8 N of equal force in both directions, using the twin rod to prevent twisting during the downstroke and upstroke.
Shuttle Transfer
Moves parts between two stations efficiently, with the extended back rod available to trigger a remote sensor or carry a secondary stop flag.
Guided Diverting
Steadily diverts heavy items on a conveyor without needing an external guide, as the through-rod resists side loading and rotational torque.
Is the Airtac MID Series Double Rod Mini Cylinder MID40X75S the Right Cylinder?
When sizing this 40 mm bore, step down to the MID32 (345.6 N at 0.5 MPa) for lighter duties, as there is no larger MID bore. The double-rod layout is optimal for applications needing anti-rotation stability, back-rod switch tripping, or twin-load driving. Mount using LB foot, FA flange, or TC trunnion brackets, noting the SDB pivot-block is not offered on double-rod variants. Back covers include CA, U, R, and CM styles.
Remember that fixed TPU bumper pads only soften stroke ends and do not function as a lock. If air pressure drops, the piston drifts; for holding a suspended load, install an external rod lock or pilot-operated check valve.
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 MID40X75S FAQ
Force is equal both ways because a rod exits each end. It provides 527.8 N at 0.5 MPa, 738.9 N at 0.7 MPa, and a maximum theoretical force of 107.6 kgf at 1.0 MPa.
Yes, the -S suffix means it has a built-in piston magnet compatible with CMSG, DMSG, and EMSG switches. The stainless steel build also provides mild washdown resistance.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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