Airtac MG Stainless Steel Mini Air Cylinder MG25X50S
The AirTAC Airtac MG Stainless Steel Mini Air Cylinder MG25X50S is a genuine double acting JIS-standard round-body mini air cylinder with a Ø25mm bore and 50mm 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
- Stroke50 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 MG25X50S
With a 25 mm bore pushing 245.3 N at 0.5 MPa (343.4 N at 0.7 MPa), this MG25X50S is a double acting JIS round-body mini cylinder with a short 50 mm stroke and a factory-fitted magnet. The SUS304 stainless barrel and hard-chrome plated 10 mm rod shrug off damp, washdown and outdoor air better than painted-steel minis, and the riveted cover-and-block build keeps the body compact and light. Because the footprint follows the JIS mini-cylinder standard, standard brackets and I / Y rod knuckles drop straight on.
The fixed anti-impact bumper pad at each stroke end softens direction changes - it decelerates the rod, it is not an adjustable air cushion. In practice, plan on roughly 147 N of usable push at 0.5 MPa, which lifts about 12 kg vertically with a 2:1 margin. The built-in magnet lets CMSG, DMSG or EMSG switches report rod position, and the 1/8" port takes PT threading as standard.
Airtac MG Stainless Steel Mini Air Cylinder MG25X50S Technical Specifications
| Model | Airtac MG Stainless Steel Mini Air Cylinder MG25X50S |
|---|---|
| Series | MG JIS mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 50 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 MG25X50S
| MG | JIS round-body mini cylinder (double-acting). |
|---|---|
| 25 | Bore size in mm. |
| ×50 | 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 MG25X50S Is Used
Position-checked parts ejector
A 50 mm stroke with a fitted magnet and CMSG switch confirms the pusher has fully returned before the next plastic cap enters the chute, using the 245.3 N push at 0.5 MPa.
Bottling line lane diverter
The stainless SUS304 barrel tolerates frequent washdown, and about 12 kg of vertical lift capacity with margin handles lightweight bottle gates on a diverting conveyor.
Small press fixture clamp
Roughly 147 N of practical clamping force at 0.5 MPa holds aluminium brackets in a drilling fixture, with the bumper pad damping the clamp snap at each cycle end.
Is the Airtac MG Stainless Steel Mini Air Cylinder MG25X50S the Right Cylinder?
At 25 mm bore this sits mid-range: the 20 mm MG gives 157.0 N push at 0.5 MPa if the load is lighter, while stepping up to the 32 mm bore buys 402.2 N. For high speeds or heavy loads that need adjustable deceleration, move to the cushioned MGC instead. Remember the MG drifts when air is lost - the bumpers only soften the stroke end, so add an external rod lock or pilot check valve if the load must stay put. The S in MG25X50S means the magnet is already fitted for CMSG / DMSG / EMSG sensing; LB foot, FA flange, CB clevis and SDB pivot mounts are available.
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 MG25X50S FAQ
At 0.5 MPa it pushes 245.3 N and pulls 206.1 N; at 0.7 MPa it pushes 343.4 N and pulls 288.5 N. The theoretical maximum is 50 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa (22-145 psi) with 1.5 MPa (215 psi) proof pressure, speed 30-800 mm/s, and the 1/8" port is PT threaded.
S means a magnet is built into the piston, so CMSG, DMSG or EMSG reed switches can be clipped on for end-of-stroke signalling. The bumper pads are fixed anti-impact pads only - they decelerate the rod at the stroke ends but are not an adjustable air cushion; that feature belongs to the MGC series.
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