Airtac MGD Double Rod Mini Cylinder MGD20X150
The AirTAC Airtac MGD Double Rod Mini Cylinder MGD20X150 is a genuine double acting, double rod JIS-standard round-body mini air cylinder with a Ø20mm 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.
- BoreØ20 mm
- Stroke150 mm
- Port size1/8"
- Acting typeDouble acting, double rod
- Rod threadM8×1.25
- 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 MGD20X150
The AirTAC MGD20X150 is a double acting, double-rod JIS round-body mini cylinder with a 20 mm bore and 150 mm stroke. A piston rod exits both the front and rear covers with the same M8x1.25 male thread at each end, so the through-rod 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. Because both chambers see the rod-side area, the output force is equal in both directions: about 131.9 N (13.4 kgf) each way at 0.5 MPa and 184.7 N at 0.7 MPa, with a theoretical maximum of 26.9 kgf at 1.0 MPa.
Construction follows the JIS mini-cylinder footprint: a SUS304 stainless barrel with a hard-chrome-plated 8 mm rod, riveted covers, and a fixed anti-impact bumper pad that decelerates the piston at each stroke end. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof pressure is 1.5 MPa (215 psi), speed range is 30-800 mm/s, and temperature spans -20 to +70 C with air filtered to 40 um. Ports are 1/8" on this bore. As a rule of thumb, plan on roughly 60 percent of the push force for a realistic working load, which gives a safe vertical figure of about 8 kg for this cylinder.
Airtac MGD Double Rod Mini Cylinder MGD20X150 Technical Specifications
| Model | Airtac MGD Double Rod Mini Cylinder MGD20X150 |
|---|---|
| Series | MGD JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 150 mm |
| Acting type | Double acting, double rod |
| Port size | 1/8" |
| Rod thread | M8×1.25 |
| 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.
Theoretical Output Force (Ø20mm)
| Pressure | Force (both ways) |
|---|---|
| 0.5 MPa | 132 N |
| 0.7 MPa | 185 N |
| Max (@1.0 MPa) | 27 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 MGD20X150
| MGD | JIS round-body mini cylinder (double-rod). |
|---|---|
| 20 | 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.
Where the Airtac MGD Double Rod Mini Cylinder MGD20X150 Is Used
Anti-rotation slide
The through-rod on the MGD20X150 resists rotation and side load, keeping a small 150 mm-stroke slide square through its 131.9 N push-pull cycle without external guides.
Twin-load push
With an M8x1.25 rod thread at both ends, the rear rod drives a second light fixture or ejector in perfect sync with the front stroke at equal 131.9 N force each way.
Rear-mounted stop flag
The back rod end carries a stop or position flag for downstream logic; add the S code magnet and a CMSG or DMSG switch when end-position signalling is required.
Is the Airtac MGD Double Rod Mini Cylinder MGD20X150 the Right Cylinder?
At 131.9 N per direction at 0.5 MPa, the MGD20X150 is the smallest force class in the MGD range; step up to MGD25 for about 206 N or MGD32 for about 346 N at the same pressure, or go to MGD40 for about 528 N. The 150 mm stroke sits comfortably within the 300 mm maximum standard stroke for this bore, so no nonstandard build is needed. Choose this model when you need anti-rotation guidance, a rear rod end for a switch flag or second load, or equal force both ways. If your bore is 50 or 63, or you need an adjustable variable cushion instead of the fixed bumper pad, move to the MGCD; for a conventional single-rod cylinder, the MG series is the equivalent. Mounting is FA flange or LB foot, with I and Y rod knuckles available (no SDB/CB pivots on the double-rod design). The optional S code adds a magnet for CMSG, DMSG or EMSG switches; this non-S unit carries no magnet, so no sensor can be mounted as supplied. For long strokes, support the rod to limit side load, and remember the cylinder will not hold a load on air loss, so fit an external rod lock or pilot check valve where a held position matters.
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 MGD20X150 FAQ
Because both sides of the piston see the rod-side area, force is equal in both directions: 131.9 N at 0.5 MPa and 184.7 N at 0.7 MPa, with a theoretical maximum of 26.9 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 is -20 to +70 C, speed is 30-800 mm/s, and the port is 1/8". The maximum standard stroke for this 20 mm bore is 300 mm, so the 150 mm stroke is a standard build.
The MGD has a rod exiting both covers with the same M8x1.25 thread at each end, giving equal force both ways, anti-rotation stiffness, and a usable rear rod end for a flag or second load; the MG has a single rod and a larger extend force. Both are JIS round-body stainless mini cylinders, but the MGD uses a fixed anti-impact bumper pad rather than an adjustable cushion (that is the MGCD). Switches: only the S-code version carries a magnet for CMSG, DMSG or EMSG sensors; this non-S model has no magnet, so no sensor can be mounted.
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