Airtac MID Series Double Rod Mini Cylinder MID25X125S
The AirTAC Airtac MID Series Double Rod Mini Cylinder MID25X125S is a genuine double acting, double rod round-body mini air cylinder with a Ø25mm bore and 125mm 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.
- BoreØ25 mm
- Stroke125 mm
- Port size1/8"
- Acting typeDouble acting, double rod
- Rod threadM10×1.25
- CushionFixed TPU bumper pads
About the Airtac MID Series Double Rod Mini Cylinder MID25X125S
Delivering 206.1 N of equal thrust in both directions at 0.5 MPa, this double-acting stainless steel mini cylinder uses a through-rod design that resists rotation and handles side loads without an external guide. Because a Ø10 mm rod exits both end covers of the Ø25 mm barrel, the extend and retract faces share the exact same rod-side area. The rear rod end remains exposed to trip a switch, carry a stop flag, or drive a secondary load. Its riveted round-body construction shrugs off mild corrosion and washdown environments.
It conforms to the ISO 6432 mounting interface for easy bracket swaps, uses a 1/8" port, and travels 125 mm at speeds between 30 and 800 mm/s. The built-in magnet (-S) supports CMSG, DMSG, and EMSG switches for position sensing. Based on the 0.5 MPa output, you get a safe working load around 124 N, which means it can vertically lift roughly 10.5 kg with a 2:1 safety margin. Fixed TPU bumper pads soften the stroke endpoints.
Airtac MID Series Double Rod Mini Cylinder MID25X125S Technical Specifications
| Model | Airtac MID Series Double Rod Mini Cylinder MID25X125S |
|---|---|
| Series | MID ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 125 mm |
| Acting type | Double acting, double rod |
| Port size | 1/8" |
| Rod thread | M10×1.25 |
| 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 (Ø25mm)
| Pressure | Force (both ways) |
|---|---|
| 0.5 MPa | 206 N |
| 0.7 MPa | 289 N |
| Max (@1.0 MPa) | 42 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 MID25X125S
| MID | ISO 6432 round-body mini cylinder (double-rod). |
|---|---|
| 25 | Bore size in mm. |
| ×125 | 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 MID25X125S Is Used
Symmetric Shuttle Transfer
Pushes a 10 kg workpiece carriage equally well in both directions, using the through-rod to maintain steady guidance without twisting.
Dual-Load Positioning
Drives a primary 124 N assembly press load forward while the rear rod end trips a physical flag or external limit switch on the return.
Washdown Divert Gate
Actuates a routing flap in damp packaging lines where the stainless barrel resists mild corrosion and the twin rod prevents binding.
Is the Airtac MID Series Double Rod Mini Cylinder MID25X125S the Right Cylinder?
If you need less push, the MID20 bore provides 131.9 N at 0.5 MPa; stepping up to the MID32 yields 345.6 N. The twin-rod architecture is ideal when you need anti-rotation stability, a back-rod mechanical stop, or symmetric shuttle movements. For mounting, choose LB foot, FA flange, or TC trunnion brackets, plus CA, U, R, or CM back covers (the SDB pivot block is not offered on this variant). The -S magnet pairs directly with CMSG, DMSG, or EMSG sensors.
Remember that fixed TPU bumpers only decelerate the stroke end; they do not lock the piston. If air pressure drops, the cylinder drifts. To hold a load securely during air loss or valve centering, install an external rod lock or a 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 MID25X125S FAQ
It delivers equal force both ways because the double-rod design uses the rod-side area on both faces. It outputs 206.1 N at 0.5 MPa, 288.5 N at 0.7 MPa, and reaches a maximum theoretical force of 42.0 kgf at 1.0 MPa.
Yes, the -S suffix indicates a built-in piston magnet, allowing you to mount CMSG, DMSG, or EMSG switches along the groove. The stainless steel round-body build also provides excellent mild corrosion resistance for washdown settings.
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