Airtac MG Stainless Steel Mini Air Cylinder MG25X25
The AirTAC Airtac MG Stainless Steel Mini Air Cylinder MG25X25 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 MG25X25
With a 25 mm bore and a short 25 mm stroke, the MG25X25 delivers about 245.3 N of push at 0.5 MPa (343.4 N at 0.7 MPa) in a compact double acting package. The round body follows the JIS mini-cylinder standard, so standard JIS brackets and I/Y rod knuckles bolt straight on without custom plates. A SUS304 stainless barrel with a hard-chrome plated rod shrugs off damp air, light washdown and outdoor exposure far better than painted-steel minis.
In practice, plan for roughly 147 N of usable work at 0.5 MPa (about 0.6 of the rated push), which means this cylinder lifts around 7 kg vertically with a comfortable margin. The fixed anti-impact bumper pad at each end softens the direction change - it decelerates the stroke end only and is not an adjustable cushion. Air runs both ways through the 1/8" ports, and the riveted covers keep the body short and light.
Airtac MG Stainless Steel Mini Air Cylinder MG25X25 Technical Specifications
| Model | Airtac MG Stainless Steel Mini Air Cylinder MG25X25 |
|---|---|
| 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 MG25X25
| 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 MG25X25 Is Used
Fixture clamp on a small CNC
The 245.3 N push at 0.5 MPa is enough to swing a toggle clamp or hold a 40 mm aluminium workpiece against a stop during a 20-second drilling cycle, with the bumper pad absorbing the clamp snap.
Carton reject pusher
A 25 mm stroke is ideal for nudging a misprinted folding-carton flap off a conveyor lane; the stainless barrel tolerates the damp, floury air near a bagging head.
Lab sample lift
Lifts about 7 kg vertically with margin - enough to raise a rack of sample vials 25 mm into a capping station, with the 1/8" ports keeping plumbing tidy in a tight enclosure.
Is the Airtac MG Stainless Steel Mini Air Cylinder MG25X25 the Right Cylinder?
At 245.3 N push (0.5 MPa) the 25 mm bore sits between the 20 mm MG (157.0 N) and the 32 mm MG (402.2 N); pick the 20 mm bore if your load is under about 90 N working force, or step up to 32 mm for heavier clamping. The 25 mm stroke suits short-reach eject, index and confirm tasks - for long strokes over 500 mm, order a made-to-order length up to 800 mm and watch side load on the 10 mm rod. Note that when air is lost the piston drifts freely; add an external rod lock or a pilot check valve if the load must stay put. This SKU has no magnet, so CMSG/DMSG/EMSG switches cannot be fitted - order the S code (MG25X25S) if you need position sensing. Mount it with LB foot, FA flange or CB clevis (SDB pivot pairs with CB).
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 MG25X25 FAQ
At 0.5 MPa: 245.3 N push and 206.1 N pull. At 0.7 MPa: 343.4 N push and 288.5 N pull. Theoretical maximum is 50 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), speed 30-800 mm/s, and the port is 1/8" on all four sides of the family.
Not as supplied - MG25X25 has no magnet. The optional S code adds a built-in magnet that triggers CMSG, DMSG or EMSG reed/solid-state switches clipped to the barrel. Also note the fixed bumper pads only soften stroke-end impact; they do not hold or brake a load if air pressure drops.
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