Airtac MG Stainless Steel Mini Air Cylinder MG20X75S
The AirTAC Airtac MG Stainless Steel Mini Air Cylinder MG20X75S is a genuine double acting JIS-standard round-body mini air cylinder with a Ø20mm bore and 75mm 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
- Stroke75 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 MG20X75S
With a 20 mm bore and 75 mm stroke, this MG delivers double acting push and pull in a compact JIS round-body package: 157 N push and 131.9 N pull at 0.5 MPa, rising to 219.8 N and 184.7 N at 0.7 MPa, with a theoretical peak of 32 kgf at 1.0 MPa. The barrel is SUS304 stainless steel riveted onto the covers, paired with a hard-chrome plated rod, so it shrugs off washdown and damp shop air far better than painted-steel minis.
Because the S code is in the model, a magnet is built into the piston, so CMSG, DMSG or EMSG switches can be clipped on for end-of-stroke signalling without any rework. The fixed anti-impact bumper pads soften the direction change at each end of travel, and the JIS mounting footprint means standard mini-cylinder brackets and rod knuckles bolt straight on. As a rule of thumb, plan on roughly 94 N of usable push at 0.5 MPa, which lifts about 9 kg vertically with a 2:1 margin.
Airtac MG Stainless Steel Mini Air Cylinder MG20X75S Technical Specifications
| Model | Airtac MG Stainless Steel Mini Air Cylinder MG20X75S |
|---|---|
| Series | MG JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 75 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 MG20X75S
| MG | JIS round-body mini cylinder (double-acting). |
|---|---|
| 20 | Bore size in mm. |
| ×75 | 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 MG20X75S Is Used
Small-part presence checks
The built-in magnet lets a CMSG switch confirm rod position on an electronics assembly fixture, while the 157 N push at 0.5 MPa ejects or seats lightweight connectors.
Bench-top labelling and stamping
A 75 mm stroke suits compact packaging heads where the 32 kgf theoretical class is ample for date codes and light marking on cartons.
Washdown test rigs
The SUS304 stainless barrel and chrome rod tolerate the damp, rinsed-down environment of food-lab or QC stations that corrode painted minis.
Is the Airtac MG Stainless Steel Mini Air Cylinder MG20X75S the Right Cylinder?
At 0.5 MPa this bore pushes 157 N, sitting between the smallest MG (there is no MG bore below 20) and the 25 mm bore at 245.3 N. If your load needs more than about 94 N of working force, step up to MG25; if 157 N covers it with margin, this is the lightest, most compact choice. The 75 mm stroke is well inside the 500 mm standard range, so it ships as a catalogue item. Remember the MG drifts when air is removed, so add a pilot check valve or external rod lock if the load must stay put. For foot, flange or clevis mounting order LB, FA or CB, and the fitted magnet already covers 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 MG20X75S FAQ
At 0.5 MPa it pushes 157 N and pulls 131.9 N; at 0.7 MPa that rises 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 proof pressure of 1.5 MPa (215 psi), speed 30-800 mm/s, and a 1/8" port on every bore in this series.
Yes. The S in the model code means a piston magnet is factory-fitted, so AirTAC CMSG, DMSG or EMSG reed/electronic switches mount directly on the barrel for end-of-stroke detection. Note the bumper pads only soften the stroke end; they do not hold the rod, so use an external lock or check valve if the load must stay in position on air loss.
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