
The AirTAC Airtac MGD Double Rod Mini Cylinder MGD25X150S is a genuine double acting, double rod JIS-standard round-body mini air cylinder with a Ø25mm bore and 150mm stroke, 1/8" air ports and a SUS304 stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
The AirTAC MGD25X150S is a JIS-standard round-body mini cylinder, double acting and double rod: a 10 mm hard-chrome steel rod exits both the front and rear covers with the same M10x1.25 male thread at each end. Because the rod-side piston area is active on both sides, the output force is equal in each direction, 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. 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 mini-cylinder footprint: a riveted SUS304 stainless barrel suited to damp and washdown environments, a fixed anti-impact bumper pad at each stroke end to soften deceleration, and a two-way lubricant-storing piston seal. The fitted magnet (the S code) allows CMSG, DMSG or EMSG switches to be mounted on the barrel. Operating pressure is 0.15-1.0 MPa (22-145 psi) with a 1.5 MPa (215 psi) proof pressure, air filtered to 40 um, a -20 to +70 C range, and speeds of 30-800 mm/s. Ports are 1/8" on this bore. As a rule of thumb, halving the 206.1 N force gives a safe vertical working load of roughly 10 kg; for a held load, add an external rod lock or pilot check valve, since the cylinder drifts on air loss.
| Model | Airtac MGD Double Rod Mini Cylinder MGD25X150S |
|---|---|
| Series | MGD JIS mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 150 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.
| 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).
| MGD | JIS round-body mini cylinder (double-rod). |
|---|---|
| 25 | Bore size in mm. |
| ×150 | 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.
The through-rod resists rotation and side load, so both rod ends move a guided carrier in perfect sync at 206.1 N each way, with the rear end doubling as a switch flag mount.
Drive two small pusher pads from the front and rear rod ends simultaneously, each seeing about 21 kgf of thrust at 0.5 MPa for carton or tray ejection.
Mount a stop or sensor flag on the back rod while the front rod does the work; the fitted magnet and CMSG/DMSG/EMSG switches give repeatable position signals at both stroke ends.
At 206.1 N per direction at 0.5 MPa, the 25 mm bore suits medium-duty double-rod work; step down to the 20 mm bore (131.9 N) for lighter symmetric slides or up to the 32 mm bore (345.6 N) for heavier twin-load pushes. The 40 mm bore (527.8 N) is the largest MGD; for 50 or 63 mm bores or adjustable cushioning, choose the MGCD instead, and for a single-rod cylinder choose the MG. This 150 mm stroke sits within the 300 mm maximum standard stroke for the 25 mm bore. The magnet already fitted means CMSG/DMSG/EMSG switches mount directly. Mounting is FA flange or LB foot, with I and Y rod knuckles available; no SDB/CB pivot exists on the double-rod family. On long strokes, guide the rear rod end to limit side load on the bearings.
Quick checklist
Because both sides of the piston see the rod-side area, output 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), fluid is air filtered to 40 um, temperature range -20 to +70 C, and speed 30-800 mm/s. Ports are 1/8" and the maximum standard stroke for this bore is 300 mm.
The MGD has a rod exiting both covers with the same M10x1.25 thread, giving equal force in both directions, anti-rotation stiffness, and a free rear rod end for a flag or second load; the MG has one rod and a higher extend force. The fixed bumper pads only soften stroke ends, they are not adjustable cushions (that is the MGCD), and the cylinder will not hold position on air loss, so use an external rod lock or pilot check valve for held loads. The fitted magnet accepts CMSG/DMSG/EMSG switches.
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