Airtac MGD Double Rod Mini Cylinder MGD25X125
The AirTAC Airtac MGD Double Rod Mini Cylinder MGD25X125 is a genuine double acting, double rod JIS-standard round-body mini air cylinder with a Ø25mm bore and 125mm 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
- Stroke125 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 MGD25X125
The AirTAC MGD25X125 is a JIS round-body mini cylinder, double acting and double rod: a 10 mm rod exits both the front and back covers with the same M10x1.25 male thread at each end. Because both chambers see the rod-side piston area, 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. Air ports are 1/8" on this bore, and the fixed anti-impact bumper pads soften the stroke ends without any adjustment.
The through-rod resists rotation and side load, keeps stroke-end position repeatable, and lets the rear rod end carry a stop flag or drive a second load while the front end does the work. The SUS304 stainless barrel and hard-chrome plated rod suit damp and washdown environments, and the riveted round-body construction follows the JIS mini-cylinder footprint. Operating range is 0.15-1.0 MPa (22-145 psi) with a 1.5 MPa (215 psi) proof pressure, -20 to +70 C, and speeds of 30-800 mm/s. As a sizing rule of thumb, halve the 206.1 N figure for a safe vertical load of about 10 kg.
Airtac MGD Double Rod Mini Cylinder MGD25X125 Technical Specifications
| Model | Airtac MGD Double Rod Mini Cylinder MGD25X125 |
|---|---|
| Series | MGD JIS mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 125 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 MGD25X125
| MGD | JIS round-body mini cylinder (double-rod). |
|---|---|
| 25 | Bore size in mm. |
| ×125 | 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 MGD25X125 Is Used
Anti-rotation pusher slide
The through-rod on the MGD25X125 resists rotation, keeping a pusher or gate square through its 125 mm travel while delivering 206.1 N in each direction at 0.5 MPa.
Twin-load transfer
With identical M10x1.25 threads on both rod ends, one cylinder can drive two grippers or lift tabs at once, with equal 288.5 N available at 0.7 MPa on either side.
Rear flag station
The back rod end carries a stop or index flag for a downstream station while the front end does the pressing, ideal for symmetric transfer fixtures in compact JIS layouts.
Is the Airtac MGD Double Rod Mini Cylinder MGD25X125 the Right Cylinder?
At 25 mm bore the MGD25X125 delivers 206.1 N each way at 0.5 MPa, which supports a realistic working load of roughly 12 kgf horizontally (about 0.6 of the force) or about 10 kg vertically. If your load needs more, step up to the MGD32 (345.6 N at 0.5 MPa) or the MGD40 (527.8 N); for lighter duty the MGD20 (131.9 N) is the smallest in the series. If you need bores of 50 or 63 mm or an adjustable air cushion, choose the MGCD instead, and for a conventional single-rod cylinder pick the MG. This model is a good fit when anti-rotation guidance, equal force in both directions, or a rear-mounted stop flag matters. Mount with the FA flange or LB foot and add I or Y rod knuckles as needed; SDB and CB pivot mounts are not offered on the double-rod body. The 125 mm stroke is within the 300 mm maximum standard stroke for this bore, and the non-magnet build accepts no position sensor; order the S code if you want CMSG, DMSG or EMSG switch sensing. For long strokes, support the rod to limit side load at the extended end.
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 MGD25X125 FAQ
Because the rod occupies both sides of the 25 mm piston, the 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 is 1.5 MPa (215 psi), temperature range is -20 to +70 C, speed is 30-800 mm/s, and the air supply should be filtered to 40 um. Ports are 1/8" and the maximum standard stroke for this bore is 300 mm.
The MGD25X125 has a rod exiting both covers, so force is identical extending and retracting, the rod resists rotation and side load, and the rear end can carry a flag or a second load; the single-rod MG has a larger extend force but a smaller return force. This unit has fixed anti-impact bumper pads only, not an adjustable cushion like the MGCD. It ships without a magnet, so no sensor can be mounted; order the S version to fit CMSG, DMSG or EMSG switches. Note the cylinder does not hold its load if air is lost, so use an external rod lock or pilot check valve for held loads.
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