Airtac MGC Stainless Steel Mini Cylinder MGC20X150S
The AirTAC Airtac MGC Stainless Steel Mini Cylinder MGC20X150S 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 MGC20X150S
The AirTAC MGC20X150S is a double acting, JIS-standard round-body mini cylinder with a 20 mm bore and 150 mm stroke, fitted with a variable air cushion at both stroke ends. Unlike the bumper-type MG, the cushion needles can be adjusted to decelerate the piston smoothly near end of travel, so this cylinder tolerates higher piston speeds and heavier moving loads without hammering the covers. At 0.5 MPa it delivers 157 N push and 131.9 N pull, rising to 219.8 N push at 0.7 MPa, with a theoretical maximum of 32 kgf at 1.0 MPa. As a rule of thumb, keep dynamic vertical loads to about 0.6 of the push force, roughly 9 kg here.
Construction follows the JIS mini-cylinder footprint: a SUS304 stainless barrel with covers and stainless block riveted and rolled into place, plus a hard-chrome plated (20 um) 8 mm rod with an M8x1.25 male thread and M5x0.8 ports. The two-way piston seal also stores lubricant for long service life. The fitted magnet (the S in the code) allows CMSG, DMSG or EMSG reed switches to be clipped on for position sensing. Mounting is via FA flange or LB foot, with I and Y rod knuckles available, and the 150 mm stroke sits well inside the 500 mm standard range for this bore.
Airtac MGC Stainless Steel Mini Cylinder MGC20X150S Technical Specifications
| Model | Airtac MGC Stainless Steel Mini Cylinder MGC20X150S |
|---|---|
| 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 MGC20X150S
| 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 MGC20X150S Is Used
High-speed parts ejection
Pushing small stamped or molded parts off a die or chute at up to 800 mm/s, where the adjustable air cushion at both ends stops the piston smoothly instead of slamming the covers.
Conveyor line diverting
A light pusher or diverter on a packaging conveyor, where the 157 N push force at 0.5 MPa moves small cartons and the cushion absorbs the momentum of the moving load at stroke end.
Indexed fixture clamping
Repetitive clamp-and-release on an assembly fixture, with the fitted magnet and a CMSG or DMSG switch confirming extend and retract positions each cycle.
Is the Airtac MGC Stainless Steel Mini Cylinder MGC20X150S the Right Cylinder?
Choose the MGC20X150S when your application runs fast or carries a moving load into the stroke ends and needs adjustable deceleration: the variable air cushion at both ends is the key advantage over the bumper-type MG in the same 20 mm bore. Size by force: 157 N push at 0.5 MPa (about 16 kgf, so plan on roughly 9 kg safe vertical load) and 219.8 N push at 0.7 MPa. Within the MGC range, bore 20 is the smallest option; if you need more force, step up to bore 25 (245.3 N push at 0.5 MPa) or bore 32 (402.2 N). If your cycle is slow and light and you do not need cushioning, the plain MG bumper cylinder in bore 20 is the lower-cost alternative. Mount with the FA flange or LB foot and add I or Y rod knuckles where the tooling needs a pivoting joint. Order the -S suffix (as this model has) if you need CMSG, DMSG or EMSG position switches. At 150 mm the stroke is standard (up to 500 mm for this bore); for longer strokes keep side loads on the rod minimal or add external guidance, and non-standard strokes up to 800 mm are available made to order.
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 MGC20X150S FAQ
At 0.5 MPa it produces 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 dynamic duty, limit vertical lifting to about 0.6 of the push force, roughly 9 kg, and note that the air cushion only decelerates the stroke end; it is not a lock, so use an external rod lock or pilot check valve if the load must be held on air loss.
The cushion at both stroke ends is adjustable: turn the cushion needle to meter the exhaust air and decelerate the piston smoothly, which suits higher speeds and heavier moving loads than the fixed bumper pad on the plain MG. Yes, this model carries the -S magnet, so CMSG, DMSG or EMSG reed switches can be mounted anywhere along the SUS304 stainless barrel for end-of-stroke or mid-stroke sensing.
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