Airtac MG Stainless Steel Mini Air Cylinder MG20X350S
The AirTAC Airtac MG Stainless Steel Mini Air Cylinder MG20X350S 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 MG20X350S
With a 20 mm bore and a long 350 mm stroke, this MG series cylinder runs double acting on filtered air, pushing with about 157 N and pulling with 131.9 N at 0.5 MPa (219.8 N / 184.7 N at 0.7 MPa, up to 32 kgf theoretical at 1.0 MPa). The round SUS304 stainless barrel is riveted onto the covers rather than tied with rods, and the hard-chrome plated 8 mm rod shrugs off washdown and damp shop air better than painted minis. Because the footprint follows the JIS mini-cylinder standard, standard brackets and I or Y rod knuckles bolt straight on.
In practice, plan on roughly 94 N of usable push at 0.5 MPa, which lifts about 9 kg vertically once you halve the 16 kgf equivalent for a 2:1 margin. The fitted magnet means CMSG, DMSG or EMSG switches can be clipped on for end-of-stroke signalling without reordering a special build. A fixed anti-impact pad softens each direction change, and the 350 mm stroke sits well inside the 500 mm standard range for this bore, so no made-to-order surcharge applies.
Airtac MG Stainless Steel Mini Air Cylinder MG20X350S Technical Specifications
| Model | Airtac MG Stainless Steel Mini Air Cylinder MG20X350S |
|---|---|
| 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 MG20X350S
| 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 MG20X350S Is Used
Small parts presence ejection
The fitted magnet and 157 N push at 0.5 MPa suit a 350 mm-throw ejector on a packaging line that kicks undersized bottles off a conveyor into a reject bin.
Lab sample pusher
A stainless barrel and 131.9 N pull force make this a clean choice for sliding sample trays in and out of an analytical instrument enclosure in a humid lab.
Light fixture lowering
With about 9 kg of safe vertical lift at a 2:1 margin, the 350 mm stroke can lower a small camera or sensor head into a test fixture on an assembly bench.
Is the Airtac MG Stainless Steel Mini Air Cylinder MG20X350S the Right Cylinder?
At 0.5 MPa this bore delivers 157 N push and 131.9 N pull; the next step down does not exist in the MG range (20 mm is the smallest), while the 25 mm bore raises push to 245.3 N if your load needs more margin. If your application stalls above roughly 94 N of real work at 0.5 MPa, size up. Note that the rod drifts when air is removed or the valve centres, so add an external rod lock or a pilot check valve for any held load. The long 350 mm stroke makes the 8 mm rod more sensitive to side loads, so guide the payload externally and keep the axis aligned. Mount with LB foot, FA flange, CB clevis or SDB pivot, and remember the magnet is already fitted for sensor use.
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 MG20X350S FAQ
At 0.5 MPa it pushes with 157 N and pulls with 131.9 N; at 0.7 MPa those rise to 219.8 N and 184.7 N. The theoretical maximum is 32 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa (22-145 psi) with a 1.5 MPa (215 psi) proof pressure, and speed runs 30-800 mm/s.
Yes. The S in MG20X350S means the piston magnet is built in, so AirTAC CMSG, DMSG or EMSG reed or electronic switches mount directly on the barrel to signal extend and retract positions. Ports are 1/8" on all four sides of the covers, threaded PT as standard.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac MG Stainless Steel Mini Air Cylinder MG20X350S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.