Airtac MGD Double Rod Mini Cylinder MGD40X225
The AirTAC Airtac MGD Double Rod Mini Cylinder MGD40X225 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 MGD40X225
The AirTAC MGD40X225 is a double acting, double-rod JIS round-body mini cylinder with a 40 mm bore and 225 mm stroke. A 16 mm rod exits both the front and rear covers with an M14x1.5 male thread at each end, so the two rod ends move together and 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. Because both chambers see the rod-side piston area, there is no separate push and pull figure, and the through-rod resists rotation and side load while the rear rod end can carry a stop flag or drive a second load.
Construction follows the JIS mini-cylinder footprint: a riveted SUS304 stainless barrel, hard-chrome plated carbon-steel rods, two-way lubricant-storing piston seals and a fixed anti-impact bumper pad that decelerates the stroke end. 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 and PT thread. For a realistic working load, size around 317 N (about 32 kg) per direction; for a vertical lift, keep the suspended figure near 16 kg. Note that the cylinder does not hold its load on air loss, so use an external rod lock or pilot check valve where a held position is required.
Airtac MGD Double Rod Mini Cylinder MGD40X225 Technical Specifications
| Model | Airtac MGD Double Rod Mini Cylinder MGD40X225 |
|---|---|
| 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 MGD40X225
| 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 MGD40X225 Is Used
Anti-rotation slide
The through-rod on the MGD40X225 resists rotation, keeping a 225 mm slide or gripper plate square through the full stroke with 527.8 N available in each direction.
Twin-load push
Drive two pusher arms or clamps at once from the front and rear M14x1.5 rod ends, with equal 527.8 N force at 0.5 MPa on both sides of the machine.
Rear-end stop flag
Use the back rod end to carry a stop or flag block for a downstream station while the front rod does the work, with the fixed bumper pad softening each stroke end.
Is the Airtac MGD Double Rod Mini Cylinder MGD40X225 the Right Cylinder?
At 40 mm bore the MGD40X225 is the largest cylinder in the MGD double-rod range, delivering 527.8 N each way at 0.5 MPa. If you need more force, a bore above 40 mm, or an adjustable air cushion, step up to the MGCD series (which adds 50 mm and 63 mm bores); if you do not need a through rod, the single-rod MG series gives a larger push force on the full piston area. The 225 mm stroke sits well inside the 500 mm maximum standard stroke for this bore. Choose the -S option if you want position sensing with CMSG, DMSG or EMSG switches; without the magnet no sensor can be mounted. Mount with the FA flange or LB foot, and add I or Y rod knuckles at either or both rod ends. On long strokes, support the side load or guide the load externally to protect the 16 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 MGD40X225 FAQ
Because it is a double-rod cylinder, force is equal in both directions: 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) with a 1.5 MPa (215 psi) proof pressure, on air filtered to 40 um, from -20 to +70 C at 30-800 mm/s. The port is 1/8" on this 40 mm bore, and the maximum standard stroke is 500 mm.
The MGD40X225 has a rod exiting both covers with the same M14x1.5 thread at each end, so force is identical extending and retracting and the through-rod resists rotation and side load; the single-rod MG has a larger push force on the full piston area but no rear rod. This model has a fixed anti-impact bumper pad, not an adjustable cushion (that is the MGCD). To mount CMSG, DMSG or EMSG switches you must order the -S magnet option, and the cylinder will not hold a load on air loss, so add an external rod lock or pilot check valve for held positions.
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Genuine AirTAC parts produced by AirTAC factory.
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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Most inquiries answered within 7-8 hours.
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