Airtac MG Stainless Steel Mini Air Cylinder MG25X250
The AirTAC Airtac MG Stainless Steel Mini Air Cylinder MG25X250 is a genuine double acting JIS-standard round-body mini air cylinder with a Ø25mm bore and 250mm 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
- Stroke250 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 MG25X250
With a 250 mm stroke on a 25 mm bore, the MG25X250 delivers double acting push-pull power in a compact JIS round-body package: 245.3 N push and 206.1 N pull at 0.5 MPa, rising to 343.4 N at 0.7 MPa. The riveted SUS304 stainless barrel shrugs off damp and washdown conditions that would corrode painted-steel minis, while the hard-chrome plated 10 mm rod keeps seal wear low over long runs.
Because the bore 25 footprint follows the JIS mini-cylinder standard, it drops onto standard JIS brackets and rod knuckles, so spares and fixtures stay interchangeable across your machine park. The fixed anti-impact bumper pad at each stroke end softens direction changes; it decelerates only and is not an adjustable cushion. As a rule of thumb, plan on roughly 147 N of usable work at 0.5 MPa (about 60% of rated push), which lifts around 7 kg vertically with a sensible margin.
Airtac MG Stainless Steel Mini Air Cylinder MG25X250 Technical Specifications
| Model | Airtac MG Stainless Steel Mini Air Cylinder MG25X250 |
|---|---|
| Series | MG JIS mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 250 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 MG25X250
| MG | JIS round-body mini cylinder (double-acting). |
|---|---|
| 25 | Bore size in mm. |
| ×250 | 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 MG25X250 Is Used
Carton ejector on packing lines
The 245.3 N push at 0.5 MPa slides filled cartons off a conveyor lane, and the stainless barrel tolerates daily wipe-down cleaning.
Lift-and-present fixture
Roughly 7 kg of vertical lift capacity at a safe margin raises jigs or part trays to operator height; guide the load externally on the 250 mm stroke.
Lab sample handling gate
Compact round body fits tight test-rig frames, and the 1/8" port keeps plumbing simple in instrument enclosures.
Is the Airtac MG Stainless Steel Mini Air Cylinder MG25X250 the Right Cylinder?
At 25 mm bore you sit mid-range: the 20 mm MG offers 157.0 N push at 0.5 MPa for lighter clamping, while stepping up to the 32 mm MG buys 402.2 N for heavier tooling. If your cycle runs fast or carries real mass, the cushioned MGC in the same bore family tames end-of-stroke shock better than a fixed bumper. Note that a plain MG will drift if air pressure is lost - for a held vertical load, add an external rod lock or a pilot check valve. This SKU has no magnet, so CMSG / DMSG / EMSG switches cannot be fitted; order the -S version if you need position sensing. At 250 mm stroke, keep side loads off the 10 mm rod and guide the workpiece externally.
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 MG25X250 FAQ
At 0.5 MPa the 25 mm bore gives 245.3 N push and 206.1 N pull; 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.
Not on this SKU. The MG25X250 has no built-in magnet, and the CMSG / DMSG / EMSG switches only work with the magnetised piston. Order the MG25X250S (the S code adds the magnet) if you need end-of-stroke or mid-stroke sensing.
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