Airtac MGC Stainless Steel Mini Cylinder MGC20X50S
The AirTAC Airtac MGC Stainless Steel Mini Cylinder MGC20X50S is a genuine double acting + cushion JIS-standard round-body mini air cylinder with a Ø20mm bore and 50mm 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
- Stroke50 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 MGC20X50S
The AirTAC MGC20X50S is a double acting, JIS-standard round-body mini cylinder with a 20 mm bore and 50 mm stroke, fitted with a variable air cushion at both stroke ends. Unlike the bumper-type MG, the cushion needles let you dial in smooth deceleration 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 MG family recipe: 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) and a two-way piston seal that also stores lubricant. The S code means a magnet is built in, so CMSG, DMSG or EMSG switches can be mounted directly on the barrel. Air supply should be filtered to 40 um, operating pressure spans 0.15-1.0 MPa (22-145 psi), proof pressure is 1.5 MPa (215 psi), temperature range is -20 to +70 C, and speed runs 30-800 mm/s. As a buyer insight: applying the common 0.6 safety factor to the 157 N push force gives a safe working load of roughly 9.6 kgf, or about 4.8 kgf for vertical lifting duty.
Airtac MGC Stainless Steel Mini Cylinder MGC20X50S Technical Specifications
| Model | Airtac MGC Stainless Steel Mini Cylinder MGC20X50S |
|---|---|
| Series | MGC JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 50 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 MGC20X50S
| MGC | JIS round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×50 | 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 MGC20X50S Is Used
Small parts ejection on assembly stations
The variable air cushion lets a fast push stroke decelerate gently at end of travel, so delicate 5-9 kg workpieces are ejected at speed without the piston slamming the front cover.
Packaging pusher and divert gates
With 157 N push at 0.5 MPa and a 30-800 mm/s speed range, the MGC20X50S nudges cartons or trays off a conveyor while the cushion absorbs momentum at both stroke ends.
Indexed fixtures with position feedback
The built-in magnet accepts CMSG, DMSG or EMSG switches, so clamping or indexing motions in compact jigs can be confirmed electrically at each end of the 50 mm stroke.
Is the Airtac MGC Stainless Steel Mini Cylinder MGC20X50S the Right Cylinder?
At 20 mm bore this is the smallest MGC available, so if you need more force the family steps up through 25, 32, 40, 50 and 63 mm bores; the 63 mm size reaches 1557.9 N push at 0.5 MPa. If your application is slow and light and you do not need end-of-stroke deceleration, the plain bumper-type MG in 20-40 mm bores is the lower-cost alternative. Choose the MGC when speed, load momentum or cycle smoothness justify an adjustable cushion. Mounting options are the FA flange and LB foot, with I and Y rod knuckles available on the rod; the S in this model code means the magnet is already fitted for CMSG, DMSG or EMSG position sensing. Ports are M5x0.8 on this bore, and the rod thread is M8x1.25 male. The 50 mm stroke is well within the 500 mm maximum standard stroke; longer strokes up to 800 mm are made to order. Keep side loads off the rod on longer strokes and guide external load separately.
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 MGC20X50S FAQ
At 0.5 MPa it pushes with 157 N and pulls with 131.9 N; at 0.7 MPa those figures rise to 219.8 N push and 184.7 N pull. The theoretical maximum is 32 kgf at 1.0 MPa. Applying a 0.6 safety factor to the 0.5 MPa push force gives a safe working load of about 9.6 kgf, or roughly 4.8 kgf for vertical lifting.
The cushion is an adjustable air chamber at each stroke end: turn the needle to meter exhaust and the piston decelerates smoothly before reaching the cover, which is why the MGC suits higher speeds and heavier moving loads than the bumper-type MG. The cushion only decelerates end of stroke; it is not a lock or brake, and the cylinder will not hold position on air loss. Fit an external rod lock or pilot check valve for a held load.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac MGC Stainless Steel Mini Cylinder MGC20X50S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.