Airtac MG Stainless Steel Mini Air Cylinder MG25X25S
The AirTAC Airtac MG Stainless Steel Mini Air Cylinder MG25X25S is a genuine double acting JIS-standard round-body mini air cylinder with a Ø25mm bore and 25mm stroke, 1/8" air ports and a SUS304 stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ25 mm
- Stroke25 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionFixed anti-impact bumper pads
About the Airtac MG Stainless Steel Mini Air Cylinder MG25X25S
Compact yet capable, the MG25X25S is a double acting JIS round-body mini cylinder with a 25 mm bore and a short 25 mm stroke, pushing 245.3 N and pulling 206.1 N at 0.5 MPa (343.4 N / 288.5 N at 0.7 MPa, up to 50 kgf theoretical at 1.0 MPa). The S in the code means a magnet is built into the piston, so CMSG, DMSG or EMSG switches can be clipped on for end-position sensing without any later modification.
The barrel is SUS304 stainless steel riveted onto the covers, paired with a 10 mm hard-chrome plated rod, which shrugs off moisture and light washdown far better than painted mini cylinders. In practice, plan on roughly 147 N of usable push at 0.5 MPa, which lifts about 12 kg vertically with a sensible margin. A fixed anti-impact bumper pad softens the stroke ends, and the JIS mounting footprint accepts standard mini-cylinder brackets and I / Y rod knuckles.
Airtac MG Stainless Steel Mini Air Cylinder MG25X25S Technical Specifications
| Model | Airtac MG Stainless Steel Mini Air Cylinder MG25X25S |
|---|---|
| Series | MG JIS mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 25 mm |
| Acting type | Double acting |
| 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 anti-impact bumper pads |
| Max standard stroke | Up to 500 mm |
Specifications follow the official AirTAC MG-series (JIS standard) datasheet. Barrel: SUS304 stainless steel (round-body, riveted construction); piston rod: carbon steel with 20µm hard-chrome plating. Thread options: PT (blank) / G / NPT.
Theoretical Output Force (Ø25mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 245 N | 206 N |
| 0.7 MPa | 344 N | 289 N |
| Max (@1.0 MPa) | 50 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac MG Stainless Steel Mini Air Cylinder MG25X25S
| MG | JIS round-body mini cylinder (double-acting). |
|---|---|
| 25 | Bore size in mm. |
| ×25 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSG / DMSG / EMSG sensors. |
| FA / LB / CB / SDB | Mounting: FA flange, LB foot, CB clevis, SDB pivot bracket (with CB). |
MG-family variants: MG / MGC (double acting ±cushion), MSG / MTG (single acting push / pull), MGD / MGCD (double rod ±cushion). Accessories: LB foot, FA flange, CB clevis, SDB pivot block, plus I and Y knuckles. Thread PT (blank) / G / NPT.
Where the Airtac MG Stainless Steel Mini Air Cylinder MG25X25S Is Used
Blister-pack push-off
The 245.3 N push at 0.5 MPa ejects filled blister trays off a forming station, and the 25 mm stroke matches the tray pitch exactly.
Small-parts presence check
With the built-in magnet driving a CMSG switch, the cylinder confirms a connector housing is fully seated in an electronics assembly jig.
Bottle-rail indexing
Short 25 mm strokes index glass bottles against a stop on a bottling line, where the stainless barrel handles frequent rinse-down.
Is the Airtac MG Stainless Steel Mini Air Cylinder MG25X25S the Right Cylinder?
At 25 mm bore this sits in the middle of the MG range: the 20 mm bore gives 157 N push at 0.5 MPa, while stepping up to 32 mm raises it to 402.2 N. If your tooling or part weighs under about 12 kg and you want vertical margin, the 25 is the balanced pick; for heavier clamping go to 32. The 25 mm stroke suits short-jaw grippers and ejector pins rather than long transfers. Keep side loads off the 10 mm rod on any stroke, and remember the bumper pad only decelerates the ends - it will not hold position if air is lost, so add a pilot check valve or external lock for suspended loads. Mounting options are LB foot, FA flange, CB clevis or SDB pivot, and the fitted magnet means sensor-ready delivery.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G / NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting (LB / FA / CB / SDB) & knuckle
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 On first run, back off the cushion/impact settings and release gradually.
- check Installation by qualified personnel per AirTAC docs.
Airtac MG Stainless Steel Mini Air Cylinder MG25X25S FAQ
At 0.5 MPa it pushes 245.3 N and pulls 206.1 N; at 0.7 MPa that rises to 343.4 N push and 288.5 N pull. The theoretical maximum is 50 kgf at 1.0 MPa. Operating pressure spans 0.15-1.0 MPa (22-145 psi) with a 1.5 MPa (215 psi) proof pressure, and speed runs 30-800 mm/s.
The S means a piston magnet is factory-fitted, so CMSG, DMSG or EMSG reed/solid-state switches mount directly on the 1/8"-ported body. The cylinder itself is a JIS-standard round-body mini with a riveted SUS304 stainless barrel and hard-chrome 10 mm rod - not a tie-rod design - with a fixed bumper pad at each stroke end to soften impact.
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