Airtac MG Stainless Steel Mini Air Cylinder MG20X180
The AirTAC Airtac MG Stainless Steel Mini Air Cylinder MG20X180 is a genuine double acting JIS-standard round-body mini air cylinder with a Ø20mm bore and 180mm 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
- Stroke180 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 MG20X180
With a 20 mm bore and a 180 mm stroke, this MG series cylinder is a double acting, JIS-standard 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 delivers about 157 N of push and 131.9 N of pull, rising to 219.8 N and 184.7 N at 0.7 MPa. Because the barrel is stainless rather than painted steel, it shrugs off damp air, light washdown and outdoor exposure far better than typical aluminium minis.
In practice, plan on roughly 94 N of usable work at 0.5 MPa (about 60% of the rating), which means this cylinder lifts about 4 kg vertically with a comfortable 2:1 margin. The fixed anti-impact bumper pads soften the stroke ends but do not cushion adjustably, and they will not hold a load if air is lost. Position sensing needs the optional -S magnet, which enables CMSG / DMSG / EMSG switches; this SKU has no magnet, so no sensor can be fitted.
Airtac MG Stainless Steel Mini Air Cylinder MG20X180 Technical Specifications
| Model | Airtac MG Stainless Steel Mini Air Cylinder MG20X180 |
|---|---|
| Series | MG JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 180 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 MG20X180
| MG | JIS round-body mini cylinder (double-acting). |
|---|---|
| 20 | Bore size in mm. |
| ×180 | 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 MG20X180 Is Used
Small-parts ejection on assembly benches
Pushes finished clips or bushings off a fixture with about 157 N at 0.5 MPa, while the 180 mm stroke clears a deep die pocket.
Light diverter on a packaging conveyor
Swings or pushes small cartons between lanes; the stainless barrel tolerates the humid, wiped-down environment around food-grade lines.
Sample lift in a lab automation module
Raises trays of about 4 kg vertically with a 2:1 margin, using the 180 mm stroke to move samples between two deck heights.
Is the Airtac MG Stainless Steel Mini Air Cylinder MG20X180 the Right Cylinder?
At 157 N push (0.5 MPa) this 20 mm bore suits light clamping, gating and small part transfer. If you need more force, the 25 mm bore gives about 245 N at the same pressure; if 157 N is already generous, this is the smallest MG bore available. The 180 mm stroke sits well inside the 500 mm standard range, so no made-to-order stroke is needed. For mounting, choose LB foot, FA flange, CB clevis or SDB pivot, with I or Y rod knuckles on the M8x1.25 male thread. Remember the piston drifts when air is removed - add an external rod lock or pilot check valve if the load must stay put. If your cycle runs fast with heavy loads, step up to the cushioned MGC series instead.
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 MG20X180 FAQ
At 0.5 MPa it pushes with 157 N and pulls with 131.9 N; at 0.7 MPa those figures rise to 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 spans 30-800 mm/s.
Not as supplied. This SKU has no built-in magnet, so no switch can be mounted. Order the S-code version (e.g. MG20X180S) to enable CMSG, DMSG or EMSG reed or solid-state switches on the stainless barrel.
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 MG20X180
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.