Airtac MGD Double Rod Mini Cylinder MGD25X250
The AirTAC Airtac MGD Double Rod Mini Cylinder MGD25X250 is a genuine double acting, double rod JIS-standard round-body mini air cylinder with a Ø25mm bore and 250mm 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
- Stroke250 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 MGD25X250
The AirTAC MGD25X250 is a double acting, double rod JIS mini cylinder with a 25 mm bore and 250 mm stroke. A 10 mm piston rod exits both the front and back covers with the same M10x1.25 male thread at each end, so the two rod ends move together and the output force is equal in both directions: about 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. Because both chambers work on the rod-side area, there is no stronger push stroke to design around; sizing is the same whichever way the load moves.
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. Construction follows the JIS round-body footprint: a riveted SUS304 stainless barrel, hard-chrome plated carbon steel rods, two-way lubricant-storing piston seals and fixed anti-impact bumper pads that soften the stroke ends. It runs on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), proof tested to 1.5 MPa (215 psi), from -20 to +70 C at 30-800 mm/s, with a 1/8" port. As a working rule, keep the vertical load near 10 kg (about half of the 21 kgf thrust at 0.5 MPa).
Airtac MGD Double Rod Mini Cylinder MGD25X250 Technical Specifications
| Model | Airtac MGD Double Rod Mini Cylinder MGD25X250 |
|---|---|
| Series | MGD JIS mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 250 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 MGD25X250
| MGD | JIS round-body mini cylinder (double-rod). |
|---|---|
| 25 | Bore size in mm. |
| ×250 | 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 MGD25X250 Is Used
Anti-rotation transfer slide
The through-rod keeps a 250 mm carriage square without external guides, pushing or pulling parts with a repeatable 206.1 N at 0.5 MPa in each direction.
Twin-load push station
Front and rear M10x1.25 rod ends drive two small fixtures or ejectors at once, each seeing the same 288.5 N at 0.7 MPa for symmetric action.
Rear-mounted stop flag
The back rod end carries a stop or flag block that mirrors stroke position, giving a mechanical stroke reference on packaging and assembly lines.
Is the Airtac MGD Double Rod Mini Cylinder MGD25X250 the Right Cylinder?
At 206.1 N per direction at 0.5 MPa, the 25 mm bore suits light slides and twin-load pushes; step up to the 32 mm bore (345.6 N) if your load grows, or down to the 20 mm bore (131.9 N) for compact frames. The 250 mm stroke is within the 300 mm standard range for this bore, so no non-standard surcharge applies. Choose the MGD when you need anti-rotation, equal force both ways, or a rear rod end for a flag or second load; for bores 50 or 63, or for an adjustable cushion instead of the fixed bumper pad, move to the MGCD; for a conventional single-rod cylinder, the MG is the equivalent. Mounting is FA flange or LB foot, with I and Y rod knuckles available (no SDB/CB pivots on the double-rod). This unit has no magnet, so position sensing with CMSG, DMSG or EMSG switches requires the -S option; note the cylinder does not hold its load on air loss, so add an external rod lock or pilot check valve for held loads, and support long strokes to limit side load on the 10 mm rods.
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 MGD25X250 FAQ
Because the rod occupies both piston faces, 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 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), temperature -20 to +70 C, speed 30-800 mm/s, fluid air filtered to 40 um, and every bore in the series uses a 1/8" port.
The MGD 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 end; the MG has one rod and a larger push than pull force. This MGD25X250 has no magnet, so CMSG, DMSG or EMSG switches require the -S magnet option. Its bumper pads only soften the stroke ends; they do not hold or brake a load.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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