Airtac MG Stainless Steel Mini Air Cylinder MG20X150
The AirTAC Airtac MG Stainless Steel Mini Air Cylinder MG20X150 is a genuine double acting JIS-standard round-body mini air cylinder with a Ø20mm bore and 150mm 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
- Stroke150 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 MG20X150
With a 20 mm bore and 150 mm stroke, this MG cylinder is a double acting JIS round-body mini cylinder: air drives the rod out and pulls it back, and fixed anti-impact bumper pads soften the ends of travel. The barrel is SUS304 stainless steel riveted onto the covers, so the body shrugs off damp air, light washdown and outdoor exposure far better than painted-steel minis, while the hard-chrome plated rod (20 um) keeps sealing surfaces smooth.
At 0.5 MPa the bore delivers about 157 N push and 131.9 N pull; at 0.7 MPa that rises to 219.8 N push, with a theoretical ceiling of 32 kgf at 1.0 MPa. In practice, plan on roughly 94 N (about 9 kg) of real work at 0.5 MPa, which means this cylinder lifts roughly 4-5 kg vertically with a sensible margin. Speed range is 30-800 mm/s over 0.15-1.0 MPa (22-145 psi). Note the SKU carries no S code, so no magnet is fitted and CMSG / DMSG / EMSG switches cannot be used unless you order the -S version.
Airtac MG Stainless Steel Mini Air Cylinder MG20X150 Technical Specifications
| Model | Airtac MG Stainless Steel Mini Air Cylinder MG20X150 |
|---|---|
| Series | MG JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 150 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 MG20X150
| MG | JIS round-body mini cylinder (double-acting). |
|---|---|
| 20 | Bore size in mm. |
| ×150 | 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 MG20X150 Is Used
Lab sample pusher
Ejects sample trays or reagent racks from a compact analyser drawer; the 157 N push at 0.5 MPa is ample for light plastic carriers, and the stainless barrel tolerates frequent wipe-downs.
Small carton kick-off
Kicks lightweight cartons off a conveyor lane at 30-800 mm/s; the fixed bumper pad damps the return stroke so the bracket does not rattle loose over millions of cycles.
Fixture clamp on a drill jig
Clamps small aluminium brackets into a drilling fixture with about 94 N of usable clamping force at 0.5 MPa; the 150 mm stroke clears part loading by hand.
Is the Airtac MG Stainless Steel Mini Air Cylinder MG20X150 the Right Cylinder?
This 20 mm bore is the smallest in the MG range, so there is no smaller MG step-down; if 157 N push at 0.5 MPa feels tight for your load, move up to the MG25 (about 245 N push) or the MG32 (about 402 N push). For faster cycles or heavier loads that need adjustable end-of-stroke deceleration, the cushioned MGC in larger bores is the alternative. The 150 mm stroke is well inside the 500 mm standard limit for bore 20. Remember that when air is removed or the valve centres, the piston drifts freely - for a load that must stay put, add an external rod lock or a pilot check valve. Mount with LB foot, FA flange, CB clevis or SDB pivot brackets, and pair I or Y rod knuckles with the M8x1.25 male rod thread. If position sensing is planned later, order the magnet-equipped -S variant 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 MG20X150 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. The theoretical maximum is 32 kgf at 1.0 MPa. Operating pressure spans 0.15-1.0 MPa (22-145 psi) with a 1.5 MPa (215 psi) proof pressure, and speed runs 30-800 mm/s.
Not as ordered - this SKU has no S code, so no magnet is built into the piston and CMSG / DMSG / EMSG reed or Hall switches cannot detect position. Order the MG20X150S to get the magnet. Also note the end-of-travel bumper pads only soften impact; they do not hold or brake the load when air is lost.
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