Airtac MGD Double Rod Mini Cylinder MGD40X50S
The AirTAC Airtac MGD Double Rod Mini Cylinder MGD40X50S 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 MGD40X50S
The AirTAC MGD40X50S is a JIS-standard 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 piston area is active on both sides, the output force is equal in both directions - about 527.8 N each way 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 magnet fitted as standard (the S code) allows CMSG, DMSG or EMSG switches to be clamped on either rod end for end-of-stroke signalling.
The through-rod construction 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 with riveted covers suits damp and washdown environments, and a fixed anti-impact bumper pad decelerates the piston at each stroke end. Ports are 1/8" on all MGD bores, operating pressure is 0.15-1.0 MPa (22-145 psi) with 1.5 MPa (215 psi) proof, speed range 30-800 mm/s, and temperature -20 to +70 C. As a rule of thumb, plan on roughly 32 kg as a safe vertical load at 0.5 MPa (about 0.6 of the push force).
Airtac MGD Double Rod Mini Cylinder MGD40X50S Technical Specifications
| Model | Airtac MGD Double Rod Mini Cylinder MGD40X50S |
|---|---|
| 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 MGD40X50S
| 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 MGD40X50S Is Used
Anti-rotation linear slide
The through-rod resists rotation on a 50 mm stroke pick-and-place slide, moving a fixture with about 527.8 N of force each way at 0.5 MPa without a separate guide.
Twin-load pusher
Drive two small chutes or clamp points at once - one load on the front rod end, one on the rear - with equal 738.9 N force at 0.7 MPa on both sides.
Rear-mounted stop flag
Fit a stop or switch flag to the back rod end so the same stroke indexes parts and signals position to CMSG or DMSG sensors on the magnet-equipped piston.
Is the Airtac MGD Double Rod Mini Cylinder MGD40X50S the Right Cylinder?
At 40 mm bore this is the largest MGD, delivering 527.8 N each way at 0.5 MPa - step down to the MGD32 for lighter duties or up to the MGCD (which adds 50/63 mm bores) if you need more force or an adjustable cushion. Choose the MGD40X50S over the single-rod MG when you need anti-rotation guidance, equal force in both directions, or a rear rod end for a switch flag or twin load; for a single-rod cylinder, use the MG series. Mounting is LB foot or FA flange, with I and Y rod knuckles available (no SDB/CB pivot on the double-rod). The 50 mm stroke is well inside the 500 mm maximum standard stroke for this bore; on longer strokes, support the rod or limit side load to protect the bearings. The cylinder does not hold position on air loss, so add 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 MGD40X50S FAQ
Output 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), speed 30-800 mm/s, temperature -20 to +70 C, and the air must be filtered to 40 um. Ports are 1/8" and the rod thread is M14x1.5 at both ends.
A rod exits both covers, so force is identical extending and retracting, the rod resists rotation and side load, and the rear end can carry a stop flag or a second load - the single-rod MG has a higher extend force but none of these benefits. This S-suffix model has a magnet fitted, so CMSG, DMSG or EMSG switches mount directly for position sensing. Note the fixed bumper pad only softens the stroke ends; it is not an adjustable cushion and the cylinder will not hold a load on air loss.
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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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