Airtac MGC Stainless Steel Mini Cylinder MGC63X250S
The AirTAC Airtac MGC Stainless Steel Mini Cylinder MGC63X250S is a genuine double acting + cushion JIS-standard round-body mini air cylinder with a Ø63mm bore and 250mm 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
- Stroke250 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 MGC63X250S
The AirTAC MGC63X250S is a double acting JIS round-body mini cylinder with a 63 mm bore and 250 mm stroke, fitted with a variable air cushion at both stroke ends. Because the cushion is adjustable, you can dial in the needle to decelerate the piston smoothly near end of travel, which lets this cylinder run at higher piston speeds and move heavier loads than the fixed-bumper MG without hammering the covers. At 0.5 MPa it delivers 1557.9 N push and 1400.9 N pull, rising to 2181 N push and 1961.2 N pull at 0.7 MPa, with a theoretical maximum of 317.7 kgf at 1.0 MPa. As a rule of thumb, keep vertical lifting loads to about 60% of the push force, roughly 95 kg, for a safe working margin.
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 and a two-way piston seal that also stores lubricant. The 20 mm rod carries an M18x1.5 male thread and air is supplied through 1/4" ports. Operating pressure is 0.15 to 1.0 MPa (22-145 psi) with proof pressure of 1.5 MPa (215 psi), temperature range -20 to +70 C, and speed range 30 to 800 mm/s on air filtered to 40 um. The fitted magnet works with CMSG, DMSG or EMSG switches, and mounting options include FA flange, LB foot, and I or Y rod knuckles.
Airtac MGC Stainless Steel Mini Cylinder MGC63X250S Technical Specifications
| Model | Airtac MGC Stainless Steel Mini Cylinder MGC63X250S |
|---|---|
| Series | MGC JIS mini cylinder |
| Bore size | Ø63 mm |
| Stroke | 250 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 MGC63X250S
| MGC | JIS round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 63 | Bore size in mm. |
| ×250 | 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 MGC63X250S Is Used
Pallet push-off on conveyors
The 1557.9 N push at 0.5 MPa and adjustable air cushion let the MGC63X250S kick heavy pallets off a line at speed without jarring the cylinder covers at stroke end.
Press and clamp fixtures
With 2181 N push at 0.7 MPa and a variable cushion that eases the piston onto the workpiece zone, this bore 63 cylinder suits clamping and light press fixtures where smooth deceleration protects tooling.
Lift-and-lower eject stations
Around 95 kg of safe vertical lift (about 60% of the 0.5 MPa push force) plus cushioned stopping at both ends makes the 250 mm stroke useful for eject and lower stations; add a pilot check valve if the load must be held on air loss.
Is the Airtac MGC Stainless Steel Mini Cylinder MGC63X250S the Right Cylinder?
At 63 mm bore this is the largest MGC in the range, so there is no larger cushioned option in the family; if your load needs less force, the 50 mm bore MGC gives 981.3 N push at 0.5 MPa, and for 20 to 40 mm bores the plain bumper MG is the no-cushion alternative. Choose the MGC63X250S when you need around 1557.9 N of push at 0.5 MPa (about 158 kgf) with adjustable end-of-stroke deceleration for higher speeds or heavier moving loads. The 250 mm stroke is within the 500 mm maximum standard stroke for this bore, so it ships as a standard item; strokes beyond 500 mm up to 800 mm are made to order. Add FA flange or LB foot mounting, I or Y rod knuckles as needed, and note that the fitted magnet already supports CMSG, DMSG and EMSG position sensing. On long strokes, guide the load externally to limit side loading on the 20 mm rod.
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 MGC63X250S FAQ
At 0.5 MPa it pushes 1557.9 N and pulls 1400.9 N; at 0.7 MPa it pushes 2181 N and pulls 1961.2 N. The theoretical maximum is 317.7 kgf at 1.0 MPa. For vertical lifting, keep the load to roughly 95 kg, about 60% of the 0.5 MPa push force.
The cushion needle at each stroke end throttles the exhausting air to decelerate the piston smoothly, so you can tune the stopping for higher speeds and heavier loads; it is adjustable, not a fixed bumper pad. The cushion only slows the piston near end of travel and is not a lock or brake, so the MGC63X250S will not hold position on air loss. Use an external rod lock or pilot check valve for a held load.
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