Airtac MG Stainless Steel Mini Air Cylinder MG25X30
The AirTAC Airtac MG Stainless Steel Mini Air Cylinder MG25X30 is a genuine double acting JIS-standard round-body mini air cylinder with a Ø25mm bore and 30mm 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
- Stroke30 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 MG25X30
With a 25 mm bore and a short 30 mm stroke, this MG delivers about 245.3 N of push and 206.1 N of pull at 0.5 MPa, rising to 343.4 N at 0.7 MPa. It is a double acting JIS round-body mini cylinder: air drives the rod out and back, and a fixed anti-impact bumper pad softens the stroke ends without acting as an adjustable cushion. The riveted SUS304 stainless barrel with a hard-chrome plated rod shrugs off damp, washdown and outdoor conditions far better than painted-steel minis.
Because the barrel is stainless and the body is rolled rather than tie-rod bolted, the cylinder stays compact and light in tight machine frames. Plan on roughly 147 N of usable push at 0.5 MPa (about 60% of the rating), which corresponds to lifting around 15 kg vertically with a 2:1 margin. Note that the rod drifts if air is lost, so an external check valve or rod lock is needed where a held position matters.
Airtac MG Stainless Steel Mini Air Cylinder MG25X30 Technical Specifications
| Model | Airtac MG Stainless Steel Mini Air Cylinder MG25X30 |
|---|---|
| Series | MG JIS mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 30 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 MG25X30
| MG | JIS round-body mini cylinder (double-acting). |
|---|---|
| 25 | Bore size in mm. |
| ×30 | 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 MG25X30 Is Used
Small parts ejection
The 245.3 N push at 0.5 MPa is enough to kick machined or moulded parts off a fixture on a compact rotary transfer machine, with the 30 mm stroke matching shallow part pockets.
Bench-top clamp fixture
Around 15 kg of practical vertical capacity lets this bore clamp lids, trays or jigs on a semi-automatic packaging bench, with the bumper pad quieting each clamp cycle.
Short-push divert on conveyors
A 30 mm throw suits nudging cartons or blisters between lanes on a food-line conveyor, where the SUS304 stainless barrel tolerates frequent washdown better than painted minis.
Is the Airtac MG Stainless Steel Mini Air Cylinder MG25X30 the Right Cylinder?
At 25 mm bore the MG sits mid-range: the 20 mm bore below it pushes only 157.0 N at 0.5 MPa, while the 32 mm bore above reaches 402.2 N, so pick 25 mm when your jig or part weighs roughly 10-15 kg and 30 mm of travel is enough. The 30 mm stroke is a standard length (up to 500 mm is standard for this bore), and the short travel keeps cycle times fast within the 30-800 mm/s speed range. This SKU has no magnet, so CMSG, DMSG or EMSG switches cannot be fitted; order the S code if you need position sensing. Mount it with LB foot, FA flange or CB clevis brackets, and pair the rod with an I or Y knuckle.
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 MG25X30 FAQ
At 0.5 MPa it pushes 245.3 N and pulls 206.1 N; at 0.7 MPa those figures rise 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 over the 30 mm stroke.
Not as supplied. This MG25X30 has no built-in magnet, so CMSG, DMSG or EMSG reed or solid-state switches cannot detect the piston. Order the magnet version (S code, e.g. MG25X30S) if you need end-of-stroke or mid-stroke sensing.
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