Airtac MG Stainless Steel Mini Air Cylinder MG20X225S
The AirTAC Airtac MG Stainless Steel Mini Air Cylinder MG20X225S is a genuine double acting JIS-standard round-body mini air cylinder with a Ø20mm bore and 225mm 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
- Stroke225 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 MG20X225S
With a 20 mm bore and a 225 mm stroke, this MG20X225S is a double acting JIS round-body mini cylinder that pushes with about 157 N and pulls with about 131.9 N at 0.5 MPa, rising to 219.8 N on the extend stroke at 0.7 MPa. Air runs at 0.15-1.0 MPa (22-145 psi) with a 1.5 MPa (215 psi) proof rating, speeds span 30-800 mm/s, and the 1/8" port is common to every bumper MG bore.
The barrel is SUS304 stainless steel riveted onto the covers, paired with a hard-chrome plated 8 mm rod, so it shrugs off washdown and damp shop air far better than painted-steel minis. Because the S code is present, the magnet is built in and CMSG / DMSG / EMSG switches can be clipped on for end-of-stroke signalling. For sizing, expect roughly 94 N of usable work at 0.5 MPa, and plan on lifting about 8 kg vertically if you want a 2:1 margin.
Airtac MG Stainless Steel Mini Air Cylinder MG20X225S Technical Specifications
| Model | Airtac MG Stainless Steel Mini Air Cylinder MG20X225S |
|---|---|
| Series | MG JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 225 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 MG20X225S
| MG | JIS round-body mini cylinder (double-acting). |
|---|---|
| 20 | Bore size in mm. |
| ×225 | 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 MG20X225S Is Used
Sensor-tracked part presence on assembly lines
The built-in magnet lets CMSG or DMSG switches confirm extend and retract on a 225 mm transfer stroke, so a light-duty pick station knows the 8 kg-class part was actually lifted.
Push-off diverter on food-grade conveyors
The SUS304 stainless barrel tolerates washdown better than painted minis while the 157 N push at 0.5 MPa nudges small cartons or trays off a belt.
Small-sample handling in lab automation
A 225 mm reach with about 94 N of practical force at 0.5 MPa slides racks and sample trays gently, and the fixed bumper pad keeps end-of-stroke noise down.
Is the Airtac MG Stainless Steel Mini Air Cylinder MG20X225S the Right Cylinder?
At 20 mm bore the 157 N push at 0.5 MPa suits light clamping, sorting and small part transfer; if you need more, the 25 mm bore MG delivers about 245 N at the same pressure, while stepping down is not possible within the MG range. The 225 mm stroke is well inside the 500 mm standard limit for this bore, so it is a catalogue item, not a made-to-order length. On a stroke this long, keep side loads off the 8 mm rod or add external guiding to avoid bending. Remember the fixed bumper pad only softens the stroke end: if the valve is centred or air is lost, the load can drift, so fit a pilot check valve or an external rod lock where holding matters. Mount it on LB feet, an FA flange, a CB clevis or an SDB pivot bracket, and use I or Y rod knuckles on the M8x1.25 male thread.
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 MG20X225S FAQ
At 0.5 MPa it pushes with 157 N and pulls with 131.9 N. At 0.7 MPa the figures are 219.8 N push and 184.7 N pull. 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.
The S means a magnet is built into the piston, so CMSG, DMSG or EMSG reed switches can be mounted anywhere along the stainless barrel for position signals. The anti-impact pad at each stroke end is fixed: it decelerates the piston to soften impact, but it is not an adjustable air cushion (that is the MGC series) and it never locks or holds a load.
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 MG20X225S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.