Airtac MGC Stainless Steel Mini Cylinder MGC63X25S
The AirTAC Airtac MGC Stainless Steel Mini Cylinder MGC63X25S is a genuine double acting + cushion JIS-standard round-body mini air cylinder with a Ø63mm bore and 25mm stroke, 1/4" air ports and a SUS304 stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ63 mm
- Stroke25 mm
- Port size1/4"
- Acting typeDouble acting + cushion
- Rod threadM18×1.5
- CushionVariable air cushion, both ends
About the Airtac MGC Stainless Steel Mini Cylinder MGC63X25S
The AirTAC MGC63X25S is a double acting JIS round-body mini cylinder with a variable air cushion at both stroke ends. At 63 mm bore it is the largest MGC size, delivering 1557.9 N push and 1400.9 N pull at 0.5 MPa (22-145 psi operating range), rising to 2181 N push at 0.7 MPa and a theoretical maximum of 317.7 kgf at 1.0 MPa. The short 25 mm stroke suits compact clamping and positioning stations, while the adjustable cushion needles let you tune end-of-stroke deceleration so heavier moving loads or higher piston speeds do not hammer the covers.
Construction follows the JIS mini-cylinder footprint: a SUS304 stainless barrel with covers and stainless block riveted and rolled onto it, plus a hard-chrome plated 20 um carbon-steel rod of 20 mm diameter with M18x1.5 male thread. The two-way piston seal also stores lubricant for long service life. This S-coded model ships with a magnet fitted, so CMSG, DMSG or EMSG switches can be mounted for position feedback. Ports are 1/4"; mounting options are FA flange, LB foot, and I or Y rod knuckles.
Airtac MGC Stainless Steel Mini Cylinder MGC63X25S Technical Specifications
| Model | Airtac MGC Stainless Steel Mini Cylinder MGC63X25S |
|---|---|
| Series | MGC JIS mini cylinder |
| Bore size | Ø63 mm |
| Stroke | 25 mm |
| Acting type | Double acting + cushion |
| Port size | 1/4" |
| Rod thread | M18×1.5 |
| 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 (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | 1962 N |
| Max (@1.0 MPa) | 318 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 MGC63X25S
| MGC | JIS round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 63 | Bore size in mm. |
| ×25 | 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 MGC63X25S Is Used
Heavy clamping stations
The 63 mm bore's 1557.9 N push at 0.5 MPa clamps fixtures and workholding firmly, and the variable air cushion absorbs the impact as the piston seats.
High-speed diverters and stops
Running up to 800 mm/s, the adjustable cushion decelerates heavy product pushers smoothly at the end of the short 25 mm stroke.
Automated press and forming heads
With 2181 N push at 0.7 MPa and magnet-based CMSG sensing, the MGC63X25S drives compact forming or marking heads with controlled end-of-travel.
Is the Airtac MGC Stainless Steel Mini Cylinder MGC63X25S the Right Cylinder?
At 63 mm bore the MGC63X25S is the top of the MGC range: there is no larger cushioned MGC bore, so choose it when 1557.9 N push at 0.5 MPa is your baseline and you want the adjustable air cushion to protect the stroke ends. For comparison, the 50 mm MGC gives 981.3 N push at 0.5 MPa, and the 40 mm gives 628.3 N. If you do not need cushioning in a 20-40 mm size, the plain bumper-type MG is the alternative. A practical buyer insight: halving the 0.5 MPa push force gives a safe vertical lift figure of roughly 79 kg for this cylinder. Stroke 25 mm is well within the 500 mm standard range, and non-standard strokes up to 800 mm are made to order. Specify FA flange or LB foot mounting, add I or Y rod knuckles as needed, and remember the S in this code means the magnet is already fitted for CMSG/DMSG/EMSG sensors. Keep side loads off the rod on longer strokes; use a guide if the load is not aligned. Note the cushion decelerates the stroke end only - it is not a lock, so use an external rod lock or pilot check valve if the load must be held on air loss.
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 MGC63X25S FAQ
At 0.5 MPa it pushes with 1557.9 N and pulls with 1400.9 N. At 0.7 MPa those figures rise to 2181 N push and 1961.2 N pull. The theoretical maximum at 1.0 MPa is 317.7 kgf. Operating pressure spans 0.15-1.0 MPa (22-145 psi) with a 1.5 MPa (215 psi) proof pressure.
Needle valves at both stroke ends throttle the exhaust to decelerate the piston smoothly - you adjust the cushioning to suit speed and load. It is an adjustable air cushion, not a fixed bumper pad, and it only slows the piston near end of travel; it does not lock or hold position on air loss. For a held load, fit an external rod lock or pilot check valve. The SUS304 stainless barrel and hard-chrome 20 mm rod suit demanding environments, and the fitted magnet accepts CMSG, DMSG or EMSG switches.
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