Airtac MID Series Double Rod Mini Cylinder MID25X250S
The AirTAC Airtac MID Series Double Rod Mini Cylinder MID25X250S is a genuine double acting, double rod round-body mini air cylinder with a Ø25mm bore and 250mm 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
- Stroke250 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 MID25X250S
Delivering 206.1 N of thrust at 0.5 MPa in both directions, the AirTAC MID25X250S is a 25 mm bore, double-acting through-rod mini cylinder. Because a Ø10 mm piston rod exits both end covers, the extend and retract areas are identical, guaranteeing equal force while resisting rotation and side loads without external guides. The rear rod end remains exposed to trip a switch or carry a stop. Its stainless steel round barrel and rod withstand mild corrosion and washdown environments, and it conforms to the ISO 6432 mounting interface for standard mini brackets. Air connects via a 1/8" port, and the male rod thread is M10x1.25.
This 250 mm stroke unit includes the -S piston magnet for position sensing with CMSG, DMSG, or EMSG switches. Operating at speeds of 30-800 mm/s, it provides a computed safe working load of roughly 124 N (60% of the 0.5 MPa force) and can vertically lift about 10.5 kg with a 2:1 safety margin. Fixed TPU bumper pads soften the stroke endpoints, though they do not lock the load.
Airtac MID Series Double Rod Mini Cylinder MID25X250S Technical Specifications
| Model | Airtac MID Series Double Rod Mini Cylinder MID25X250S |
|---|---|
| Series | MID ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 250 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 MID25X250S
| MID | ISO 6432 round-body mini cylinder (double-rod). |
|---|---|
| 25 | Bore size in mm. |
| ×250 | 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 MID25X250S Is Used
Symmetric Shuttle Transfer
With 206.1 N of equal force both ways, this cylinder smoothly drives a 250 mm shuttle mechanism back and forth without requiring external guide rails to prevent rotation.
Dual-Load Push-Pull Assembly
The twin through-rod design allows the front end to push a 10.5 kg vertical load while the rear rod end simultaneously trips a CMSG sensor flag at 250 mm stroke.
Washdown Guiding Jig
Stainless steel construction resists mild corrosion in damp packaging lines, while the double rod provides the anti-rotation stability needed to index a jig precisely.
Is the Airtac MID Series Double Rod Mini Cylinder MID25X250S the Right Cylinder?
When sizing this 25 mm bore, stepping down to the MID20X250S yields 131.9 N at 0.5 MPa, whereas moving up to the MID32X250S provides 345.6 N. Choose this model when symmetric force is required for guiding steady pushes, driving twin loads, or utilizing the back rod to trip a switch. Foot (LB), flange (FA), and trunnion (TC) mounts are available, but the SDB pivot block is excluded on double-rod variants.
Note that fixed bumpers only decelerate the stroke end; they will not hold a load if air pressure drops. For vertical or suspended loads that must resist drifting on air loss, integrate an external rod lock or pilot-operated check valve. The -S magnet on this SKU enables CMSG, DMSG, or EMSG sensors for precise positioning.
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 MID25X250S FAQ
It delivers an equal 206.1 N of force at 0.5 MPa and 288.5 N at 0.7 MPa in both directions, with a theoretical maximum of 42.0 kgf at 1.0 MPa. Because it has the -S option, it includes a built-in magnet for CMSG, DMSG, or EMSG position switches.
No, the fixed TPU bumper pads only decelerate the piston near the stroke end and do not act as a brake. The cylinder will drift on air loss, so an external rod lock or pilot-operated check valve is required for suspended loads.
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