Airtac MG Stainless Steel Mini Air Cylinder MG20X100
The AirTAC Airtac MG Stainless Steel Mini Air Cylinder MG20X100 is a genuine double acting 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
- Rod threadM8×1.25
- CushionFixed anti-impact bumper pads
About the Airtac MG Stainless Steel Mini Air Cylinder MG20X100
A compact double acting round-body cylinder built to the JIS mini-cylinder standard, the MG20X100 pairs a 20 mm bore with a 100 mm stroke inside a riveted SUS304 stainless barrel. The hard-chrome plated 8 mm rod resists wear and mild washdown, and the fixed anti-impact bumper pads at each end soften the direction change. At 0.5 MPa it delivers about 157 N push and 131.9 N pull, rising to 219.8 N push at 0.7 MPa.
For sizing, treat roughly 94 N (about 9.5 kg) as the practical push effort at 0.5 MPa, which means this bore lifts roughly 4 to 5 kg vertically with a sensible margin. Because the body follows the JIS mini footprint, standard JIS brackets and I/Y rod knuckles drop straight on. Note that the piston drifts when air is lost, so an external rod lock or pilot check valve is needed for held loads.
Airtac MG Stainless Steel Mini Air Cylinder MG20X100 Technical Specifications
| Model | Airtac MG Stainless Steel Mini Air Cylinder MG20X100 |
|---|---|
| Series | MG JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 100 mm |
| Acting type | Double acting |
| 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 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 (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 132 N |
| 0.7 MPa | 220 N | 185 N |
| Max (@1.0 MPa) | 32 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac MG Stainless Steel Mini Air Cylinder MG20X100
| MG | JIS round-body mini cylinder (double-acting). |
|---|---|
| 20 | Bore size in mm. |
| ×100 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSG / DMSG / EMSG sensors. |
| FA / LB / CB / SDB | Mounting: FA flange, LB foot, CB clevis, SDB pivot bracket (with CB). |
MG-family variants: MG / MGC (double acting ±cushion), MSG / MTG (single acting push / pull), MGD / MGCD (double rod ±cushion). Accessories: LB foot, FA flange, CB clevis, SDB pivot block, plus I and Y knuckles. Thread PT (blank) / G / NPT.
Where the Airtac MG Stainless Steel Mini Air Cylinder MG20X100 Is Used
Small parts ejection
Pushing stamped or moulded components off a fixture where the 157 N push at 0.5 MPa is ample and the compact 20 mm body fits tight tooling.
Light diverting on conveyors
Kicking small cartons or blisters between lanes; the 100 mm stroke crosses a narrow belt and the bumper pad quiets each cycle.
Lab and test-rig actuation
The SUS304 stainless barrel and chrome rod tolerate occasional wipe-down in benchtop fixtures needing about 9 kg of usable push force.
Is the Airtac MG Stainless Steel Mini Air Cylinder MG20X100 the Right Cylinder?
At 20 mm bore this is the smallest MG, pushing 157 N at 0.5 MPa; step up to the MG25 (245 N) if you need more force, or down is not possible within the series. The 100 mm stroke is well inside the 500 mm standard limit. This SKU has no S magnet, so CMSG / DMSG / EMSG switches cannot be fitted - order the S version if sensing is required. Choose LB foot, FA flange, CB clevis or SDB pivot mounting, and remember the fixed bumper only decelerates the stroke end; for adjustable cushioning move to the MGC series.
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 / CB / SDB) & 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 MG Stainless Steel Mini Air Cylinder MG20X100 FAQ
At 0.5 MPa: 157 N push and 131.9 N pull. At 0.7 MPa: 219.8 N push and 184.7 N pull. Theoretical maximum is 32 kgf at 1.0 MPa. Operating range is 0.15-1.0 MPa (22-145 psi) with 1.5 MPa (215 psi) proof pressure, at 30-800 mm/s.
No. This SKU has no built-in magnet, so CMSG, DMSG or EMSG switches cannot detect piston position. Order the MG20X100S variant, which carries the magnet the switches require.
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