
The AirTAC Airtac MGC Stainless Steel Mini Cylinder MGC63X400 is a genuine double acting + cushion JIS-standard round-body mini air cylinder with a Ø63mm bore and 400mm stroke, 1/4" air ports and a SUS304 stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
The AirTAC MGC63X400 is a double acting, JIS-standard round-body mini cylinder with a 63 mm bore and 400 mm stroke, fitted with a variable air cushion at both stroke ends. The cushion needles are adjustable, so you can dial in smooth deceleration near end of travel when the piston runs fast or carries a heavy moving load, without hammering the covers. This is the largest bore in the MGC family: at 0.5 MPa it delivers a push force of 1557.9 N and a pull force of 1400.9 N, rising to 2181 N push at 0.7 MPa, with a theoretical maximum of 317.7 kgf at 1.0 MPa. Applying the usual 0.6 rule of thumb for safe working load, that push force supports roughly 95 kg in a horizontal slide or about 79 kg as a vertical lift figure.
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) 20 mm rod with an M18x1.5 male thread. The two-way piston seal also stores lubricant, and the 1/4" ports accept PT thread (G and NPT optional). Operating pressure is 0.15-1.0 MPa (22-145 psi) with proof pressure of 1.5 MPa (215 psi), temperature range -20 to +70 C, and speed range 30-800 mm/s on air filtered to 40 um. Mounting is via FA flange or LB foot, with I and Y rod knuckles available. Note that the cushion only decelerates the stroke end; it is not a lock or brake, so use an external rod lock or pilot check valve if the load must be held on air loss.
| Model | Airtac MGC Stainless Steel Mini Cylinder MGC63X400 |
|---|---|
| Series | MGC JIS mini cylinder |
| Bore size | Ø63 mm |
| Stroke | 400 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.
| 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.
| MGC | JIS round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 63 | Bore size in mm. |
| ×400 | 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.
The 1557.9 N push at 0.5 MPa shunts heavy pallets or totes off a line, while the variable air cushion stops the mass smoothly at stroke end even at higher cycle speeds.
With 2181 N of push force at 0.7 MPa, the 63 mm bore suits light pressing, staking and crimping fixtures, and the adjustable cushion damps the return or approach stroke.
A safe vertical lift figure of roughly 79 kg (0.6 of the 0.5 MPa push force) covers small elevating fixtures; add a pilot check valve externally because the cushion is not a load lock.
At 63 mm bore this is the biggest MGC you can buy, so size down only if force allows: the 50 mm bore pushes 981.3 N at 0.5 MPa, the 40 mm bore 628.3 N, and the 32 mm bore 402.2 N. If your bore falls in the 20-40 mm range and you do not need end-of-stroke deceleration, the plain bumper-type MG is the no-cushion alternative; for 50 and 63 mm bores the cushioned MGC (or double-rod MGCD) is the only option in this family. The variable air cushion is the reason to choose MGC over MG when piston speed or moving mass would otherwise slam the covers. Order the -S suffix if you want position sensing with CMSG, DMSG or EMSG switches; without the magnet no sensor can be mounted. Pick FA flange or LB foot mounting, and PT, G or NPT ports. The 400 mm stroke is within the 500 mm standard range; strokes up to 800 mm are made to order. On long strokes like this, check side load on the rod and guide the load externally where possible.
Quick checklist
At 0.5 MPa it pushes 1557.9 N and pulls 1400.9 N; at 0.7 MPa push is 2181 N and pull 1961.2 N; theoretical maximum is 317.7 kgf at 1.0 MPa. A common rule of thumb is to size the load at about 0.6 of the push force, giving roughly 95 kg horizontal or about 79 kg as a vertical lift figure.
The cushion at both ends is adjustable: turn the needle to decelerate the piston smoothly near end of stroke, which protects the covers at speeds up to 800 mm/s or with heavy moving loads. It only decelerates; it is not a lock or brake. For a load that must stay in place on air loss, fit an external rod lock or pilot check valve.
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