Airtac MGD Double Rod Mini Cylinder MGD20X100S
The AirTAC Airtac MGD Double Rod Mini Cylinder MGD20X100S is a genuine double acting, double rod JIS-standard round-body mini air cylinder with a Ø20mm bore and 100mm 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
- Stroke100 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 MGD20X100S
The AirTAC MGD20X100S is a JIS-standard round-body mini cylinder that is double acting and built on a double-rod layout: a piston rod exits both the front and rear covers, with the same M8x1.25 male thread at each end. 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 each way at 0.5 MPa and 184.7 N at 0.7 MPa. The through-rod resists rotation and side load, keeps stroke-end position repeatable, and leaves the rear rod end free to carry a stop flag or drive a second load. A fixed anti-impact bumper pad softens each stroke end; it is not an adjustable cushion.
Construction suits damp and washdown surroundings: a SUS304 stainless barrel, hard-chrome plated rods, riveted covers and a two-way lubricant-storing piston seal. The 20 mm bore 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. The S code means a magnet is fitted, so CMSG, DMSG or EMSG switches can be clipped on for end-of-stroke signalling. Ports are 1/8". As a sizing note, the 131.9 N force at 0.5 MPa supports roughly 13 kgf, so a realistic working load is about 8 kgf, or around 4 kg if the cylinder holds a vertical figure.
Airtac MGD Double Rod Mini Cylinder MGD20X100S Technical Specifications
| Model | Airtac MGD Double Rod Mini Cylinder MGD20X100S |
|---|---|
| Series | MGD JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 100 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 MGD20X100S
| MGD | JIS round-body mini cylinder (double-rod). |
|---|---|
| 20 | Bore size in mm. |
| ×100 | 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 MGD20X100S Is Used
Anti-rotation slide
The through-rod on the MGD20X100S resists rotation and side load, keeping a small linear slide square through its 100 mm stroke with 131.9 N available in each direction.
Twin-load push
Drive two light fixtures or clamps at once: the front rod end pushes one load while the rear rod end drives a second, both seeing the same 131.9 N at 0.5 MPa.
Rear-mounted stop flag
With the magnet fitted, the back rod end carries a stop or switch flag, and CMSG/DMSG/EMSG sensors signal stroke position on this compact JIS round-body cylinder.
Is the Airtac MGD Double Rod Mini Cylinder MGD20X100S the Right Cylinder?
The MGD20X100S is the smallest MGD bore: at 0.5 MPa it delivers 131.9 N in both directions, so size up to the 25 mm bore (206.1 N) or 32 mm bore (345.6 N) if your load needs more. Choose this model when you need anti-rotation guidance, equal push and pull, or a rear rod end for a switch flag or twin load. The 100 mm stroke sits well inside the 300 mm maximum standard stroke for this bore. Mounting is FA flange or LB foot, with I and Y rod knuckles available; pivot-style SDB/CB mounts are not offered on the double rod. The fitted magnet supports CMSG/DMSG/EMSG sensors. If you need an adjustable air cushion, or a 50 or 63 mm bore, step up to the MGCD; for a conventional single-rod cylinder, see the MG series. On long strokes, keep side load low and guide the load externally, and remember the cylinder will drift 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 MGD20X100S FAQ
Because the rod-side area works both ways, output is equal in extend and retract: 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. It is double acting, bore 20 mm, stroke 100 mm, rod 8 mm with M8x1.25 threads at both ends, 1/8" ports, operating pressure 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), temperature -20 to +70 C, speed 30-800 mm/s, and a maximum standard stroke of 300 mm for this bore.
The MGD20X100S has a rod exiting both covers, so force is identical in both directions and the through-rod resists rotation and side load; the single-rod MG has a larger extend force than retract because the rod reduces one side. The fixed bumper pad here only softens the stroke ends, it is not an adjustable cushion like the MGCD. The S code means a magnet is fitted, so CMSG, DMSG or EMSG switches can be mounted for position feedback.
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