Airtac MGC Stainless Steel Mini Cylinder MGC20X500S
The AirTAC Airtac MGC Stainless Steel Mini Cylinder MGC20X500S is a genuine double acting + cushion JIS-standard round-body mini air cylinder with a Ø20mm bore and 500mm 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
- Stroke500 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 MGC20X500S
The AirTAC MGC20X500S is a double acting, JIS-standard round-body mini cylinder with a 20 mm bore and a 500 mm stroke, fitted with a variable air cushion at both stroke ends. Unlike the bumper-type MG, the cushion needles let you dial in a smooth deceleration near each 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, treat about 0.6 of the 0.5 MPa push force as the safe working load, roughly 9.6 kg for lifting duties.
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 carbon-steel rod (8 mm diameter, male thread M8x1.25) that resists wear and corrosion. The two-way piston seal also stores lubricant for long service life. The S suffix means a magnet is built into the piston, so CMSG, DMSG or EMSG switches can be mounted for position feedback. Ports are M5x0.8, thread is PT, and mounting options are FA flange or LB foot with I and Y rod knuckles.
Airtac MGC Stainless Steel Mini Cylinder MGC20X500S Technical Specifications
| Model | Airtac MGC Stainless Steel Mini Cylinder MGC20X500S |
|---|---|
| Series | MGC JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 500 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 MGC20X500S
| MGC | JIS round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×500 | 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 MGC20X500S Is Used
Position-verified slide actuation
The built-in magnet works with CMSG or DMSG switches to confirm extend and retract positions on a compact 20 mm bore slide, while the variable air cushion softens each stop over the 500 mm travel.
Light-duty diverting and gating
With 157 N push at 0.5 MPa, the MGC20X500S pushes small packages or product diverters on conveyor lines, and the adjustable cushion prevents bounce at the end of each fast stroke.
Lift-and-lower test fixtures
The long 500 mm stroke suits vertical probes and small lift stations; keep the safe vertical load near 9.6 kg (about 0.6 of the push force) and add a pilot check valve if the load must be held on air loss.
Is the Airtac MGC Stainless Steel Mini Cylinder MGC20X500S the Right Cylinder?
Bore 20 is the smallest MGC size, so choose it when space and force demand are modest: 157 N push at 0.5 MPa or 219.8 N at 0.7 MPa. If you need more force in the same JIS round-body family, step up to bore 25 (245.3 N push at 0.5 MPa), 32, 40, 50 or 63. If your application runs slowly with light loads and you do not need end-of-stroke deceleration, the bumper-type MG in the same bore is the no-cushion alternative for 20 to 40 mm. The 500 mm stroke is the maximum standard stroke for this bore; longer strokes up to 800 mm are made to order. On long strokes like this, avoid side loading on the 8 mm rod and use external guidance where needed. Order the FA flange or LB foot mounting, add I or Y rod knuckles as required, and keep the S magnet if you plan to fit CMSG, DMSG or EMSG sensors. Operating range is 0.15 to 1.0 MPa (22 to 145 psi) with clean air filtered to 40 um, at 30 to 800 mm/s and -20 to +70 C.
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 MGC20X500S FAQ
At 0.5 MPa the 20 mm bore gives 157 N push and 131.9 N pull. At 0.7 MPa it reaches 219.8 N push and 184.7 N pull, and the theoretical maximum is 32 kgf at 1.0 MPa. For a safe working load, use roughly 0.6 of the 0.5 MPa push force, about 9.6 kg.
The cushion is adjustable: turn the needle valve at each end to control the deceleration of the piston near the end of stroke, which suits higher speeds and heavier moving loads than the fixed bumper on the plain MG. It only slows the piston, it is not a lock or brake, so use an external rod lock or pilot check valve where the load must be held on air loss.
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