Airtac MG Stainless Steel Mini Air Cylinder MG25X500
The AirTAC Airtac MG Stainless Steel Mini Air Cylinder MG25X500 is a genuine double acting JIS-standard round-body mini air cylinder with a Ø25mm bore and 500mm 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
- Stroke500 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 MG25X500
With a 25 mm bore and a full 500 mm stroke, this AirTAC MG model is a double acting JIS round-body mini cylinder built around a riveted SUS304 stainless barrel and a hard-chrome plated 10 mm rod. The fixed anti-impact bumper pads at each stroke end soften direction changes, and the two-way piston seal stores lubricant for long, dry-running intervals. It follows the JIS mini-cylinder standard, so standard JIS brackets and I/Y rod knuckles bolt on without rework.
At 0.5 MPa it pushes about 245 N, which in practice means plan on roughly 147 N of real work, or lift about 12 kg vertically with a 2:1 margin. The stainless barrel shrugs off damp washdown and outdoor conditions that would corrode painted-steel minis. Note that with no magnet fitted (no S code), CMSG / DMSG / EMSG switches cannot be mounted; order the S option if position sensing is planned.
Airtac MG Stainless Steel Mini Air Cylinder MG25X500 Technical Specifications
| Model | Airtac MG Stainless Steel Mini Air Cylinder MG25X500 |
|---|---|
| Series | MG JIS mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 500 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 MG25X500
| MG | JIS round-body mini cylinder (double-acting). |
|---|---|
| 25 | Bore size in mm. |
| ×500 | 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 MG25X500 Is Used
Packaging line reject pusher
The 500 mm reach sweeps off-spec packs sideways off a conveyor; 245.3 N push at 0.5 MPa clears cartons up to roughly 14 kg against light friction, with the bumper pad damping each return stroke.
Small-parts press and clinching
Pressing dowels or terminals into plastic housings: about 147 N of usable force at 0.5 MPa suits light assembly work, and 343.4 N at 0.7 MPa covers tougher inserts.
Lab and test-rig actuation
The SUS304 stainless barrel and hard-chrome rod tolerate humid lab air and occasional washdown, making this a clean, corrosion-resistant actuator for sample handlers and fixture cycling.
Is the Airtac MG Stainless Steel Mini Air Cylinder MG25X500 the Right Cylinder?
At 245.3 N push at 0.5 MPa this 25 mm bore sits between the 20 mm MG (157.0 N) and the 32 mm MG (402.2 N); if your load needs more than about 147 N of usable force, step up to bore 32. The 500 mm stroke is the maximum standard stroke for this bore, so no made-to-order surcharge applies, but at this length keep side loads off the rod and guide the load externally to avoid rod bending. Air drives both directions, yet the piston will drift when air is lost or the valve centres - add an external rod lock or a pilot check valve if the load must stay put. Mounting options are LB foot, FA flange, CB clevis and SDB pivot; the SKU as ordered carries no magnet, so sensors (CMSG / DMSG / EMSG) require the S code.
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 MG25X500 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 proof pressure 1.5 MPa (215 psi), speed 30-800 mm/s, and a 1/8" port.
Not as ordered - this SKU has no built-in magnet. The optional S code adds the magnet that lets CMSG, DMSG or EMSG switches detect piston position. Also note the fixed bumper pads only soften the stroke end; they are not an adjustable cushion and do not hold a load when air is lost.
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