Airtac MG Stainless Steel Mini Air Cylinder MG20X350
The AirTAC Airtac MG Stainless Steel Mini Air Cylinder MG20X350 is a genuine double acting JIS-standard round-body mini air cylinder with a Ø20mm bore and 350mm 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
- Stroke350 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 MG20X350
With a 350 mm stroke on a 20 mm bore, this MG cylinder is a double acting JIS round-body mini cylinder built around a SUS304 stainless barrel riveted to its covers, with a hard-chrome plated 8 mm rod. At 0.5 MPa it pushes about 157 N and pulls about 131.9 N; at 0.7 MPa that rises to 219.8 N push. The fixed anti-impact pad at each stroke end simply decelerates the rod - it is not an adjustable air cushion, which is the MGC variant.
For sizing, treat roughly 94 N (about 0.6 of the push force) as the practical working output at 0.5 MPa, or plan on lifting about 8 kg vertically with a 2:1 margin. The JIS mounting footprint accepts standard mini-cylinder brackets and I/Y rod knuckles, and the stainless barrel shrugs off damp or washdown conditions that would corrode painted-steel minis. Note that without air pressure applied the piston is free to drift - use an external rod lock or pilot check valve if the load must stay put.
Airtac MG Stainless Steel Mini Air Cylinder MG20X350 Technical Specifications
| Model | Airtac MG Stainless Steel Mini Air Cylinder MG20X350 |
|---|---|
| Series | MG JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 350 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 MG20X350
| MG | JIS round-body mini cylinder (double-acting). |
|---|---|
| 20 | Bore size in mm. |
| ×350 | 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 MG20X350 Is Used
Small parts ejector
Pushing finished components off a conveyor at a packing station, where the 157 N push at 0.5 MPa is ample for lightweight parts over the full 350 mm stroke.
Lab sample lift
Raising sample trays or fixtures of about 8 kg or less in test rigs, using the vertical-lift margin derived from the 20 mm bore push force.
Gate and lid actuation
Opening and closing small machine guards or chutes, where the double acting stroke gives powered motion both ways and the bumper pads soften each end.
Is the Airtac MG Stainless Steel Mini Air Cylinder MG20X350 the Right Cylinder?
At 20 mm bore this is the smallest MG; if 157 N push at 0.5 MPa is marginal, step up to the MG25 (about 245 N) or MG32 (about 402 N). If you need gentler stroke-end deceleration at higher speed or heavier load, the cushioned MGC in the same bore family is the alternative. The 350 mm stroke sits within the 500 mm standard range, so no made-to-order build is needed. This SKU has no magnet: to fit CMSG, DMSG or EMSG switches, order the -S version. Mount with LB foot, FA flange, CB clevis or SDB pivot, and add I or Y rod knuckles as needed. With a long 350 mm stroke, keep side loads off the 8 mm rod to avoid bending.
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 MG20X350 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 pressure is 0.15-1.0 MPa (22-145 psi) with proof pressure 1.5 MPa (215 psi), speed 30-800 mm/s, and a 1/8" port on every MG bore 20.
No. MG20X350 has no magnet, so CMSG, DMSG or EMSG switches cannot be fitted - order the -S code for that. Stroke ends have fixed anti-impact bumper pads that only decelerate the rod; adjustable air cushioning is an MGC feature, and neither pad acts as a brake when air is lost.
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