Airtac MGD Double Rod Mini Cylinder MGD40X225S
The AirTAC Airtac MGD Double Rod Mini Cylinder MGD40X225S is a genuine double acting, double rod JIS-standard round-body mini air cylinder with a Ø40mm bore and 225mm stroke, 1/8" air ports and a SUS304 stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ40 mm
- Stroke225 mm
- Port size1/8"
- Acting typeDouble acting, double rod
- Rod threadM14×1.5
- 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 MGD40X225S
The AirTAC MGD40X225S is a JIS round-body mini cylinder, double acting and double rod: a 16 mm hard-chrome rod exits both the front and back covers with the same M14x1.5 male thread at each end. Because the rod-side area is active on both sides of the piston, the output force is equal in both directions, about 527.8 N at 0.5 MPa and 738.9 N at 0.7 MPa, with a theoretical maximum of 107.6 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.
Built for damp and washdown environments, the MGD40X225S pairs a SUS304 stainless barrel with hard-chrome-plated carbon steel rods and riveted rolled covers. A fixed anti-impact bumper pad decelerates the piston at each stroke end; it is not an adjustable cushion. Operating range is 0.15-1.0 MPa (22-145 psi) with a 1.5 MPa (215 psi) proof pressure, air filtered to 40 um, -20 to +70 C, and speeds of 30-800 mm/s. The fitted magnet (S code) accepts CMSG, DMSG or EMSG switches, and the 225 mm stroke sits well inside the 500 mm maximum standard stroke for this bore. As a rule of thumb, size the working load at about 0.6 of the push force, so roughly 32 kg safe vertical load.
Airtac MGD Double Rod Mini Cylinder MGD40X225S Technical Specifications
| Model | Airtac MGD Double Rod Mini Cylinder MGD40X225S |
|---|---|
| Series | MGD JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 225 mm |
| Acting type | Double acting, double rod |
| Port size | 1/8" |
| Rod thread | M14×1.5 |
| 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 (Ø40mm)
| Pressure | Force (both ways) |
|---|---|
| 0.5 MPa | 528 N |
| 0.7 MPa | 739 N |
| Max (@1.0 MPa) | 108 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 MGD40X225S
| MGD | JIS round-body mini cylinder (double-rod). |
|---|---|
| 40 | Bore size in mm. |
| ×225 | 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 MGD40X225S Is Used
Anti-rotation linear slide
The 16 mm through-rod keeps the carriage rotation-free on a 225 mm transfer stroke, delivering 527.8 N each way at 0.5 MPa without external guides.
Twin-load pusher
Front and rear rod ends each carry a pusher pad, so one MGD40X225S drives two loads simultaneously with identical 738.9 N force at 0.7 MPa.
Rear-mounted stop flag
The fitted magnet and rear rod end carry a stop/switch flag, giving repeatable stroke-end signalling with CMSG, DMSG or EMSG sensors.
Is the Airtac MGD Double Rod Mini Cylinder MGD40X225S the Right Cylinder?
At 527.8 N per direction at 0.5 MPa, the 40 mm bore is the largest MGD and suits the heaviest double-rod duties in this family; step down to MGD32 for lighter symmetric pushes or up to the MGCD series if you need a 50 or 63 mm bore or an adjustable cushion. Choose the MGD40X225S when you need anti-rotation guidance, equal force both ways, or a rear rod end for a switch flag or second load; for a single-rod cylinder pick the MG instead. Mounting is FA flange or LB foot, with I and Y rod knuckles available (no SDB/CB pivot on the double-rod). The S code means the magnet is already fitted, so CMSG/DMSG/EMSG switches can be added at any time. At 225 mm stroke the long 16 mm through-rod is generous, so support the load well and avoid side loading beyond the rod's rating. Note the cylinder does not hold position on air loss; use 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 MGD40X225S FAQ
Force is equal in both directions because the rod-side area works both ways: 527.8 N at 0.5 MPa and 738.9 N at 0.7 MPa, with a theoretical maximum of 107.6 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. The port is 1/8" and the rod thread is M14x1.5 at both ends.
The MGD40X225S has a rod exiting both covers, so it resists rotation and side load, gives equal force extending and retracting, and lets the rear rod end carry a stop flag or a second load. The single-rod MG has a larger push than pull and no rear rod. This S-coded model has the magnet fitted, so CMSG, DMSG or EMSG switches mount directly along the SUS304 barrel. The fixed bumper pad only softens stroke ends; for an adjustable cushion see the MGCD series.
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