Airtac MGD Double Rod Mini Cylinder MGD20X200
The AirTAC Airtac MGD Double Rod Mini Cylinder MGD20X200 is a genuine double acting, double rod JIS-standard round-body mini air cylinder with a Ø20mm bore and 200mm 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
- Stroke200 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 MGD20X200
The AirTAC MGD20X200 is a JIS-standard round-body mini cylinder, double acting and double rod: a piston rod exits both the front and back covers with the same M8x1.25 male thread at each end, and the two rod ends move together. Because the rod-side area is active on both sides of the piston, the output force is equal in both directions - about 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. The 20 mm bore with a 200 mm stroke runs on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), with a proof pressure of 1.5 MPa (215 psi), a temperature range of -20 to +70 C and a speed range of 30-800 mm/s.
The through-rod is what makes this model useful: it resists rotation and side load, keeps stroke-end position repeatable, lets the rear rod end carry a stop or switch flag, or drive a second load at the same time. Construction is a riveted SUS304 stainless barrel with a hard-chrome plated carbon-steel rod and a two-way lubricant-storing piston seal, so it suits damp and washdown-adjacent environments. A fixed anti-impact bumper pad softens each stroke end - it is not an adjustable cushion. As a realistic working figure, halving the 131.9 N force at 0.5 MPa gives a safe vertical load of roughly 7 kg.
Airtac MGD Double Rod Mini Cylinder MGD20X200 Technical Specifications
| Model | Airtac MGD Double Rod Mini Cylinder MGD20X200 |
|---|---|
| Series | MGD JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 200 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 MGD20X200
| MGD | JIS round-body mini cylinder (double-rod). |
|---|---|
| 20 | Bore size in mm. |
| ×200 | 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 MGD20X200 Is Used
Anti-rotation linear slide
The through-rod resists piston rotation, so the MGD20X200 can drive a small slide or gripper plate that must stay oriented across the full 200 mm stroke without external guides.
Twin-load push
With 131.9 N available at each rod end simultaneously, one cylinder can eject or clamp two light workpieces at once - about 13 kgf of push per side at 0.5 MPa.
Rear-mounted stop or flag
The back rod end carries a position flag or mechanical stop; add the S magnet option and a CMSG or DMSG switch to signal stroke-end positions on this 200 mm stroke.
Is the Airtac MGD Double Rod Mini Cylinder MGD20X200 the Right Cylinder?
At 20 mm bore this is the smallest MGD, delivering 131.9 N equally in both directions at 0.5 MPa. If your load needs more than about 184 N at 0.7 MPa, step up to MGD25 (206.1 N at 0.5 MPa) or MGD32 (345.6 N); the largest in the series is bore 40 at 527.8 N. If you need bores of 50 or 63 mm, or an adjustable variable cushion instead of the fixed bumper pad, move to the MGCD double-rod series; if a single rod is enough, the MG series offers a larger full-bore push. Choose the MGD20X200 when you need anti-rotation guidance, a rear rod end for a flag or second load, or symmetric transfer. Mounting is FA flange or LB foot, with I and Y rod knuckles available - no SDB or CB pivot mounts on the double-rod design. The optional S code adds a magnet for CMSG, DMSG or EMSG switches; without it no sensor can be mounted. At 200 mm the stroke is well within the 300 mm maximum standard stroke for this bore, but on long strokes keep side load on the rod low and support the workpiece.
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 MGD20X200 FAQ
Because both sides of the piston see the rod-side area, the 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 range is -20 to +70 C, speed range is 30-800 mm/s, and the air must be filtered to 40 um. The port is 1/8" on this bore, the rod is 8 mm with an M8x1.25 male thread at both ends, and the maximum standard stroke for bore 20 is 300 mm.
The MGD has a rod exiting both covers, so force is equal both ways, the rod resists rotation and side load, and the rear end can carry a flag or drive a second load; the single-rod MG has a larger full-bore push in one direction only. Both are JIS round-body stainless mini cylinders, but the MGD uses fixed anti-impact bumper pads rather than an adjustable cushion (that is the MGCD). To mount CMSG, DMSG or EMSG switches you must order the S magnet option - this MGD20X200 has no magnet, so no sensor can be fitted as-is.
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