Airtac MGC Stainless Steel Mini Cylinder MGC20X500
The AirTAC Airtac MGC Stainless Steel Mini Cylinder MGC20X500 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 MGC20X500
The AirTAC MGC20X500 is a double acting, JIS-standard round-body mini cylinder with a 20 mm bore and a 500 mm stroke, built with a variable air cushion at both ends of travel. Unlike the fixed bumper pad on the plain MG, this cushion is adjustable: turn the cushion needle to meter the exhaust air and decelerate the piston smoothly near each end of stroke, so the 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 and 184.7 N pull at 0.7 MPa, with a theoretical maximum of 32 kgf at 1.0 MPa.
Construction follows the MG family recipe: 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. The 8 mm rod carries a male M8x1.25 thread and air is supplied through M5x0.8 ports. Operating pressure spans 0.15 to 1.0 MPa (22-145 psi) with a 1.5 MPa (215 psi) proof pressure, temperature range is -20 to +70 C, and speed covers 30-800 mm/s on air filtered to 40 um. Mounting is by FA flange or LB foot, with I and Y rod knuckles available; add the optional S magnet code if you later need CMSG, DMSG or EMSG switch sensing. Note that the cushion only decelerates end of stroke and is not a lock: for a held load, fit an external rod lock or pilot check valve.
Airtac MGC Stainless Steel Mini Cylinder MGC20X500 Technical Specifications
| Model | Airtac MGC Stainless Steel Mini Cylinder MGC20X500 |
|---|---|
| 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 MGC20X500
| 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 MGC20X500 Is Used
Conveyor stop and divert
The variable air cushion absorbs the impact of parts pushed at up to 800 mm/s, letting this 20 mm bore cylinder stop lightweight cartons or totes smoothly at the end of a 500 mm stroke.
Small parts ejection
With 157 N push at 0.5 MPa, the MGC20X500 ejects small machined or molded parts off chutes and fixtures, and the adjustable cushion protects the fixture from repeated end-of-stroke shock.
Lab and test positioning
The SUS304 stainless barrel and hard-chrome rod resist corrosion in clean or humid environments, making this long-stroke mini cylinder a fit for sample handling and test-rig slides.
Is the Airtac MGC Stainless Steel Mini Cylinder MGC20X500 the Right Cylinder?
At 20 mm bore this is the smallest MGC, so size up if you need more force: the 25 mm bore gives 245.3 N push at 0.5 MPa and the 32 mm bore 402.2 N. If your application runs slowly with light loads and you do not need end-of-stroke damping, the bumper-type MG in the same 20 mm bore is the no-cushion alternative. With 157 N push at 0.5 MPa, a practical safe working load is about 0.6 of that force, roughly 94 N or about 9.6 kgf horizontally; for vertical lifting, halve it again to roughly 4.8 kg. The 500 mm stroke is the maximum standard stroke for this bore, so it suits long-reach slides, but keep side loads off the 8 mm rod over that length and guide the load externally. Choose FA flange or LB foot mounting, PT thread as standard (G or NPT on request), and add the -S magnet code only if you will fit CMSG, DMSG or EMSG reed sensors; this SKU ships without a magnet and accepts no sensor.
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 MGC20X500 FAQ
At 0.5 MPa it pushes 157 N and pulls 131.9 N; at 0.7 MPa it pushes 219.8 N and pulls 184.7 N. The theoretical maximum is 32 kgf at 1.0 MPa. A safe working load is about 0.6 of the 0.5 MPa push force, roughly 94 N or 9.6 kgf horizontally, and about half that for vertical lifting.
Yes, both stroke ends have a variable air cushion: adjust the needle to decelerate the piston smoothly for higher speeds or heavier moving loads. It is a deceleration device, not a brake, so the cylinder will not hold position on air loss; use an external rod lock or pilot check valve for a held load.
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