Airtac MG Stainless Steel Mini Air Cylinder MG25X35S
The AirTAC Airtac MG Stainless Steel Mini Air Cylinder MG25X35S is a genuine double acting JIS-standard round-body mini air cylinder with a Ø25mm bore and 35mm 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
- Stroke35 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 MG25X35S
Compact and washdown-friendly, the MG25X35S is a double acting JIS round-body mini cylinder with a 25 mm bore and a short 35 mm stroke. Air drives the rod out and back, and the built-in magnet lets CMSG, DMSG or EMSG switches report position without any external bracket. At 0.5 MPa it pushes with 245.3 N and pulls with 206.1 N; at 0.7 MPa those figures rise to 343.4 N and 288.5 N, with a theoretical ceiling of 50 kgf at 1.0 MPa.
The barrel is SUS304 stainless steel riveted onto the covers, paired with a hard-chrome plated 10 mm rod, so the body shrugs off damp or lightly corrosive air better than painted minis. Because the mounting footprint follows the JIS mini-cylinder standard, standard brackets and I or Y rod knuckles drop straight on. A fixed anti-impact bumper pad softens each stroke end, though it only decelerates, it does not cushion or hold. For planning: keep real work near 147 N at 0.5 MPa, which means this cylinder lifts roughly 12 kg vertically with a 2:1 margin.
Airtac MG Stainless Steel Mini Air Cylinder MG25X35S Technical Specifications
| Model | Airtac MG Stainless Steel Mini Air Cylinder MG25X35S |
|---|---|
| Series | MG JIS mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 35 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 MG25X35S
| MG | JIS round-body mini cylinder (double-acting). |
|---|---|
| 25 | Bore size in mm. |
| ×35 | 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 MG25X35S Is Used
Indexing fixture with position feedback
The fitted magnet and a CMSG switch confirm clamp-and-release on a small drilling fixture, while 245.3 N of push at 0.5 MPa seats the workpiece against a stop.
Carton flap tucker on a packing line
A short 35 mm stroke is ideal for folding cardboard flaps at up to 800 mm/s, and the stainless SUS304 barrel tolerates the damp, wiped-down environment around food-grade conveyors.
Light part ejection from a press die
With about 12 kg of vertical lift capacity at a 2:1 margin, the 25 mm bore knocks finished bushings out of a small die, and the fixed bumper pad quiets the return stroke.
Is the Airtac MG Stainless Steel Mini Air Cylinder MG25X35S the Right Cylinder?
Size between neighbours: the MG20X35S delivers about 157 N push at 0.5 MPa, while stepping up to the MG32X35S raises that to about 402 N. If your part weighs over roughly 12 kg and hangs vertically, move to the 32 mm bore instead. This SKU ships with the magnet already fitted, so position sensing with CMSG / DMSG / EMSG switches works out of the box; the plain MG25X35 without S cannot take a sensor. Mount it on LB feet, an FA flange, a CB clevis or an SDB pivot bracket, and remember the cylinder drifts if air pressure is lost, so add an external rod lock or pilot check valve where a load must stay put. The 35 mm stroke is well within the 500 mm standard range for this bore.
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 MG25X35S FAQ
At 0.5 MPa the cylinder pushes 245.3 N and pulls 206.1 N; at 0.7 MPa push is 343.4 N and pull 288.5 N; the theoretical maximum is 50 kgf at 1.0 MPa. Practical sizing: plan on roughly 147 N of real work at 0.5 MPa, which lifts about 12 kg vertically with a 2:1 margin. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), speed 30-800 mm/s, port 1/8", rod thread M10x1.25.
Yes. The S in the model code means a magnet is built into the piston, so CMSG, DMSG or EMSG reed switches can be clipped onto the stainless barrel to signal end positions. The front cover carries a fixed anti-impact bumper pad that softens the impact at each end of the 35 mm stroke; it decelerates the piston only and is not an adjustable air cushion (that is the MGC variant), nor does it lock or hold a load when air is removed.
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