Airtac MGD Double Rod Mini Cylinder MGD25X50S
The AirTAC Airtac MGD Double Rod Mini Cylinder MGD25X50S is a genuine double acting, double rod 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, double rod
- Rod threadM10×1.25
- CushionFixed anti-impact bumper pads
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac MGD Double Rod Mini Cylinder MGD25X50S
The AirTAC MGD25X50S is a double acting, double rod JIS round-body mini cylinder: a 10 mm piston rod exits both the front and rear covers with the same M10x1.25 male thread at each end, so the two rod ends move together as one rigid through-rod. Because the rod-side area is what the air acts on at both ends of the 25 mm bore piston, the output force is equal in both directions: about 206.1 N each way at 0.5 MPa, rising to 288.5 N at 0.7 MPa, with a theoretical maximum of 42 kgf at 1.0 MPa. The through-rod resists rotation and side load, keeps stroke-end position repeatable, and leaves the rear rod end free to carry a stop flag or drive a second load.
This 50 mm stroke variant ships with the S magnet code already fitted, so CMSG, DMSG or EMSG reed switches can be clipped onto the SUS304 stainless barrel for end-of-stroke signalling. Construction follows the JIS mini-cylinder footprint: riveted covers on a stainless barrel, a hard-chrome plated rod suited to damp and washdown surroundings, two-way lubricant-storing piston seals, and a fixed anti-impact bumper pad at each stroke end that softens deceleration without any adjustment. Air supply is filtered to 40 um, operating pressure spans 0.15 to 1.0 MPa (22 to 145 psi) with a 1.5 MPa (215 psi) proof rating, speed range is 30 to 800 mm/s, and the 1/8" port is the same on every MGD bore. As a rule of thumb, plan on roughly 12 kg as the safe vertical load for this bore, about 0.6 of the 206.1 N push force.
Airtac MGD Double Rod Mini Cylinder MGD25X50S Technical Specifications
| Model | Airtac MGD Double Rod Mini Cylinder MGD25X50S |
|---|---|
| Series | MGD JIS mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 50 mm |
| Acting type | Double acting, double rod |
| 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 300 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 | Force (both ways) |
|---|---|
| 0.5 MPa | 206 N |
| 0.7 MPa | 289 N |
| Max (@1.0 MPa) | 42 kgf |
Double-rod: a rod exits both covers, so output force is equal in both directions (rod-side area used).
Model Code: Airtac MGD Double Rod Mini Cylinder MGD25X50S
| MGD | JIS round-body mini cylinder (double-rod). |
|---|---|
| 25 | Bore size in mm. |
| ×50 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSG / DMSG / EMSG sensors. |
| FA / LB | Mounting: FA flange, LB foot. |
MG-family variants: MG / MGC (double acting ±cushion), MSG / MTG (single acting push / pull), MGD / MGCD (double rod ±cushion). Accessories: LB foot, FA flange, plus I and Y knuckles. Thread PT (blank) / G / NPT.
Where the Airtac MGD Double Rod Mini Cylinder MGD25X50S Is Used
Anti-rotation slide feed
The through-rod keeps a 50 mm slide from twisting under a 206.1 N symmetric push-pull cycle, holding stroke-end position repeatable on small assembly fixtures.
Twin-load push station
Front and rear M10x1.25 rod ends drive two small clamps or ejector pins at once from one 25 mm bore, delivering 288.5 N per way at 0.7 MPa to both sides simultaneously.
Rear-mounted stop flag
With the S magnet fitted, the back rod end carries a stop or switch flag while CMSG, DMSG or EMSG sensors on the stainless barrel confirm end-of-stroke on a transfer line.
Is the Airtac MGD Double Rod Mini Cylinder MGD25X50S the Right Cylinder?
Choose the MGD25X50S when you need a 50 mm stroke, equal force in both directions, and the anti-rotation or dual-load benefit of a through-rod on a 25 mm bore. At 206.1 N per way at 0.5 MPa it sits mid-range in the MGD family: the 20 mm bore is the smallest at 131.9 N, while the 32 mm (345.6 N) and 40 mm (527.8 N) bores suit heavier duties. If you need a 50 mm or 63 mm bore, or an adjustable variable cushion instead of the fixed bumper pad, step up to the MGCD; if a single rod is enough, the single-rod MG is the lighter alternative. Mounting is FA flange or LB foot, with I and Y rod knuckles available (no SDB/CB pivot on the double-rod); the fitted magnet accepts CMSG, DMSG or EMSG switches. The maximum standard stroke for this bore is 300 mm, so 50 mm is comfortably standard. On long strokes, support the load externally so the through-rod is not asked to carry side load it is not rated for. Note the cylinder does not hold position on air loss: fit an external rod lock or pilot check valve for a held load.
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) & 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 MGD Double Rod Mini Cylinder MGD25X50S FAQ
Because both sides of the piston see the rod-side area, force is equal both ways: 206.1 N at 0.5 MPa and 288.5 N at 0.7 MPa, with a theoretical maximum of 42 kgf at 1.0 MPa. Operating pressure is 0.15 to 1.0 MPa (22 to 145 psi), proof pressure is 1.5 MPa (215 psi), temperature range is -20 to +70 C, speed is 30 to 800 mm/s, air must be filtered to 40 um, and the port is 1/8" on this bore.
The MGD25X50S has a rod exiting both covers with the same M10x1.25 thread at each end, so it resists rotation and side load, gives equal force in both directions, and can carry a stop flag or second load on the rear rod end; the single-rod MG has a higher extend force but no through-rod. This variant also uses fixed anti-impact bumper pads rather than the adjustable cushion of the MGCD. The fitted S magnet means CMSG, DMSG or EMSG switches can be mounted directly on the barrel.
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