Airtac MGD Double Rod Mini Cylinder MGD40X50
The AirTAC Airtac MGD Double Rod Mini Cylinder MGD40X50 is a genuine double acting, double rod JIS-standard round-body mini air cylinder with a Ø40mm bore and 50mm 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
- Stroke50 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 MGD40X50
The AirTAC MGD40X50 is a double acting, double rod JIS round-body mini cylinder with a 40 mm bore and 50 mm stroke. A 16 mm rod exits both the front and rear covers with the same M14x1.5 male thread at each end, so the two rod ends move together and the cylinder delivers an equal 527.8 N in both directions at 0.5 MPa (738.9 N at 0.7 MPa). Because both chambers see the rod-side area, there is no stronger push stroke and no weaker pull stroke, which makes stroke-end position highly repeatable and lets the rear rod carry a stop flag or drive a second load.
Construction follows the JIS mini-cylinder footprint: a riveted SUS304 stainless barrel with hard-chrome plated carbon-steel rods that shrug off damp and washdown environments, plus a fixed anti-impact bumper pad at each stroke end that decelerates the piston without any adjustment. It runs on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), tolerates -20 to +70 C, and travels at 30-800 mm/s. The theoretical maximum output is 107.6 kgf at 1.0 MPa, and a practical vertical lift figure is roughly 27 kg when you halve the 53.8 kgf available at 0.5 MPa. Ports are 1/8" on every MGD bore, and this model has no magnet, so no CMSG/DMSG/EMSG sensor can be fitted unless you order the S code.
Airtac MGD Double Rod Mini Cylinder MGD40X50 Technical Specifications
| Model | Airtac MGD Double Rod Mini Cylinder MGD40X50 |
|---|---|
| Series | MGD JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 50 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 MGD40X50
| MGD | JIS round-body mini cylinder (double-rod). |
|---|---|
| 40 | Bore size in mm. |
| ×50 | 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 MGD40X50 Is Used
Anti-rotation slide
The through-rod resists rotation and side load, keeping a 50 mm stroke slide square on both the extend and return strokes with an equal 527.8 N each way at 0.5 MPa.
Twin-load push
Drive two small fixtures or eject two parts at once, one from each M14x1.5 rod end, with matched 738.9 N at 0.7 MPa so both sides of the station see identical force.
Rear-mounted stop flag
Use the back rod end to carry a position flag or stop block while the front rod does the work, a classic JIS mini-cylinder arrangement on transfer and indexing fixtures.
Is the Airtac MGD Double Rod Mini Cylinder MGD40X50 the Right Cylinder?
At 40 mm bore the MGD40X50 is the largest MGD in the range, giving 527.8 N each way at 0.5 MPa; size down to a 32 mm bore if your load needs under 345.6 N, or up to the MGCD series for 50/63 mm bores or adjustable cushioning. Choose the MGD over the single-rod MG when you need anti-rotation stiffness, equal force both directions, or a rear rod end for a switch flag or twin load. Mounting is FA flange or LB foot (no SDB/CB pivot), with I and Y rod knuckles available; add the S code if you want CMSG/DMSG/EMSG magnetic sensing, since this non-S model cannot take a sensor. Keep strokes long only with good rod alignment, and remember the cylinder will not hold a load on air loss, so fit an external rod lock or pilot check valve for held loads.
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 MGD40X50 FAQ
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), proof pressure is 1.5 MPa (215 psi), temperature range is -20 to +70 C, speed is 30-800 mm/s, and the air must be filtered to 40 um. The port is 1/8" and the maximum standard stroke for this 40 mm bore is 500 mm.
The MGD40X50 has a 16 mm rod exiting both covers with the same M14x1.5 thread at each end, so both strokes use the rod-side area and the force is identical both ways, whereas the single-rod MG has a stronger push than pull. The through-rod also resists rotation and can carry a rear flag or second load. This model has no magnet, so no CMSG, DMSG or EMSG switch can be mounted; order the S code version to enable sensing. Note the fixed bumper pad only softens stroke ends and the cylinder will not hold a load on air loss.
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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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