Airtac MGC Stainless Steel Mini Cylinder MGC20X75S
The AirTAC Airtac MGC Stainless Steel Mini Cylinder MGC20X75S is a genuine double acting + cushion JIS-standard round-body mini air cylinder with a Ø20mm bore and 75mm 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
- Stroke75 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 MGC20X75S
The AirTAC MGC20X75S is a double acting, JIS-standard round-body mini cylinder with a 20 mm bore and 75 mm stroke, built 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 compact 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.
Construction follows the JIS mini 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 and a two-way piston seal that also stores lubricant. The fitted magnet (the S code) allows CMSG, DMSG or EMSG switch mounting for position feedback. Ports are M5x0.8, the male rod thread is M8x1.25, and the 8 mm rod suits the 30-800 mm/s speed range. As a rule of thumb, keep vertical lifted loads to about 0.6 of the push force, roughly 9 kg here, and remember the cushion only decelerates end of stroke; it does not lock or hold the load if air is lost, so use an external rod lock or pilot check valve for held loads.
Airtac MGC Stainless Steel Mini Cylinder MGC20X75S Technical Specifications
| Model | Airtac MGC Stainless Steel Mini Cylinder MGC20X75S |
|---|---|
| Series | MGC JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 75 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 MGC20X75S
| MGC | JIS round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×75 | 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 MGC20X75S Is Used
Small-part presence ejection
The fitted magnet and CMSG/DMSG/EMSG switches confirm extend and retract positions while the variable air cushion absorbs the stop at 30-800 mm/s cycling speeds.
Light conveyor diverting
157 N push at 0.5 MPa is enough to divert small packages or product on light lines, and the adjustable cushion prevents end-of-stroke hammering at higher belt speeds.
Compact packaging pushers
The 20 mm bore round-body stainless build fits tight packaging machinery spaces, pushing cartons or trays with about 9 kg safe vertical load capacity.
Is the Airtac MGC Stainless Steel Mini Cylinder MGC20X75S the Right Cylinder?
At 20 mm bore this is the smallest MGC offered, so size up if you need more force: the 25 mm bore pushes 245.3 N at 0.5 MPa, the 32 mm bore 402.2 N, and the 63 mm bore reaches 1557.9 N. If your application is slow and light and you do not need end-of-stroke deceleration, the bumper-type MG in the same 20 mm bore is the lower-cost no-cushion alternative. Choose the MGC when higher speeds or moving loads would otherwise slam the covers. The 75 mm stroke is well within the 500 mm standard range for this bore, and non-standard strokes up to 800 mm are made to order. Mounting is LB foot or FA flange, with I and Y rod knuckles available; the -S magnet means CMSG, DMSG or EMSG sensors can be fitted. Keep side loads off the 8 mm rod on longer strokes by using a guide where needed.
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 MGC20X75S FAQ
At 0.5 MPa it pushes 157 N and pulls 131.9 N. At 0.7 MPa those rise to 219.8 N push and 184.7 N pull. The theoretical maximum is 32 kgf at 1.0 MPa. For vertical lifting, keep the load to roughly 0.6 of the push force, about 9 kg.
Adjustable cushion needles at both stroke ends throttle exhaust air to decelerate the piston smoothly, so you can run higher speeds without slamming the covers; it is not a brake and will not hold the load on air loss. The -S magnet allows CMSG, DMSG or EMSG reed or solid-state switches on the SUS304 barrel.
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