Airtac MGC Stainless Steel Mini Cylinder MGC20X150
The AirTAC Airtac MGC Stainless Steel Mini Cylinder MGC20X150 is a genuine double acting + cushion JIS-standard round-body mini air cylinder with a Ø20mm bore and 150mm stroke, M5×0.8 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 sizeM5×0.8
- Acting typeDouble acting + cushion
- Rod threadM8×1.25
- CushionVariable air cushion, both ends
About the Airtac MGC Stainless Steel Mini Cylinder MGC20X150
The AirTAC MGC20X150 is a JIS-standard round-body mini cylinder, double acting, with a variable air cushion at both stroke ends. The cushion needles let you dial in smooth deceleration near end of travel, so this 20 mm bore cylinder can run at higher piston speeds and move heavier loads than the bumper-type MG without hammering the covers. At 0.5 MPa it delivers 157 N push and 131.9 N pull; at 0.7 MPa that rises to 219.8 N push and 184.7 N pull, with a theoretical maximum of 32 kgf at 1.0 MPa. As a rule of thumb, treat about 0.6 of the push force as a safe working load, which is roughly 9 kg for this bore.
Construction follows the JIS mini-cylinder footprint: a SUS304 stainless barrel with covers and stainless block riveted and rolled onto it, plus a hard-chrome plated 20 um carbon-steel rod and a two-way piston seal that also stores lubricant. It is not a tie-rod or extruded-profile design. The 150 mm stroke sits well inside the 500 mm maximum standard stroke for this bore, and the M5x0.8 ports take PT thread. Operating pressure is 0.15 to 1.0 MPa (22 to 145 psi), proof pressure 1.5 MPa (215 psi), temperature range -20 to +70 C, and speed range 30 to 800 mm/s. This SKU has no magnet, so no position sensor can be fitted; order the -S variant to enable CMSG, DMSG or EMSG switches.
Airtac MGC Stainless Steel Mini Cylinder MGC20X150 Technical Specifications
| Model | Airtac MGC Stainless Steel Mini Cylinder MGC20X150 |
|---|---|
| Series | MGC JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 150 mm |
| Acting type | Double acting + cushion |
| Port size | M5×0.8 |
| 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 | Variable air cushion, both ends |
| 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 MGC Stainless Steel Mini Cylinder MGC20X150
| MGC | JIS round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×150 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSG / DMSG / EMSG sensors. |
| FA / LB | Mounting: FA flange, LB foot. |
MG-family variants: MG / MGC (double acting ±cushion), MSG / MTG (single acting push / pull), MGD / MGCD (double rod ±cushion). Accessories: LB foot, FA flange, plus I and Y knuckles. Thread PT (blank) / G / NPT.
Where the Airtac MGC Stainless Steel Mini Cylinder MGC20X150 Is Used
High-speed small-part ejection
Pushing light components off a conveyor at up to 800 mm/s, where the variable air cushion stops the piston smoothly at 157 N push force instead of hammering the covers.
Compact fixture clamping
Clamping or positioning jigs on automated benches, where the 219.8 N push at 0.7 MPa and adjustable end-of-stroke deceleration protect delicate workpieces.
Packaging machine actuators
Box flap tucking and small carton indexing in packaging lines, with the 150 mm stroke covering typical product pitches and the cushion absorbing cyclic impacts.
Is the Airtac MGC Stainless Steel Mini Cylinder MGC20X150 the Right Cylinder?
At 20 mm bore this is the smallest cylinder in the MGC range, so there is no smaller cushioned option; if you need more force, the 25 mm bore steps up to 245.3 N push at 0.5 MPa. If your application does not need end-of-stroke deceleration, the plain bumper-type MG in the same bore is the lower-cost alternative for 20 to 40 mm bores. Choose the MGC20X150 when higher speed or a moving load would otherwise slam the covers, since the variable air cushion is adjustable at both ends rather than a fixed pad. Mounting is limited to FA flange and LB foot, with I and Y rod knuckles available for the rod side. The 8 mm rod is slender, so for long strokes keep side load off the rod or add external guidance. If you need position feedback, order the -S magnet variant to accept CMSG, DMSG or EMSG sensors. Remember the cushion only decelerates the stroke end: it is not a lock or brake, and the cylinder will not hold a vertical load on air loss, so add a rod lock or pilot check valve for held loads.
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) & 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 and release gradually.
- check Installation by qualified personnel per AirTAC docs.
Airtac MGC Stainless Steel Mini Cylinder MGC20X150 FAQ
At 0.5 MPa it delivers 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. For safe working loads, use about 0.6 of the push force, roughly 9 kg.
Yes, the MGC20X150 has a variable air cushion at both ends: turn the cushion needle to set the deceleration for your speed and load. It is not a fixed bumper pad. The cushion only slows the piston near end of stroke; it is not a brake, so use an external rod lock or pilot check valve if the load must be held on air loss.
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