
The AirTAC Airtac MGCD Stainless Steel Mini Air Cylinder MGCD63X400 is a genuine double acting, double rod + 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 MGCD63X400 is a double acting, double rod JIS round-body mini cylinder with a 63 mm bore and a 400 mm stroke, built with a variable air cushion at both ends. Because a 20 mm hard-chrome rod exits both covers with the same M18x1.5 male thread each end, the piston works on the rod-side area in both directions, so the output force is equal either way: about 1400.9 N at 0.5 MPa and 1961.2 N at 0.7 MPa, with a theoretical maximum of 285.7 kgf at 1.0 MPa. The adjustable cushion decelerates the piston smoothly at each end of the 400 mm travel, making this the largest cushioned MG-family bore for high-speed or heavier-load stops. As a computed buyer insight, halving the 0.5 MPa force gives a safe vertical working load of roughly 71 kg.
Construction follows the JIS mini-cylinder footprint with a riveted round body in SUS304 stainless steel and hard-chrome-plated rods for corrosion resistance and low wear. It runs on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), tolerates a proof pressure of 1.5 MPa (215 psi), operates from -20 to +70 C, and covers speeds of 30-800 mm/s. Ports are 1/4" with PT thread as standard. The rear rod end doubles as an anti-rotation guide, a stop flag, or a second load point, and adding the optional S magnet code enables CMSG, DMSG or EMSG position sensors. Mounting is via FA flange or LB foot, with I and Y rod knuckles available.
| Model | Airtac MGCD Stainless Steel Mini Air Cylinder MGCD63X400 |
|---|---|
| Series | MGCD JIS mini cylinder |
| Bore size | Ø63 mm |
| Stroke | 400 mm |
| Acting type | Double acting, double rod + 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 | Force (both ways) |
|---|---|
| 0.5 MPa | 1402 N |
| 0.7 MPa | 1962 N |
| Max (@1.0 MPa) | 286 kgf |
Double-rod: a rod exits both covers, so output force is equal in both directions (rod-side area used).
| MGCD | JIS round-body mini cylinder (double-rod, 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 through-rod keeps the load from twisting while the variable air cushion brings 1400.9 N of equal bidirectional force to a smooth stop over the 400 mm stroke, ideal for fast pick-and-place slides.
Rod ends on both sides let you press two workpieces at once with matched force, while the adjustable cushions at each end absorb the impact of heavier tooling at 1961.2 N at 0.7 MPa.
Mount a stop or cam flag on the rear rod end and, with the S magnet option, CMSG or DMSG switches to confirm end positions on a long-stroke conveyor pusher or gate.
At 63 mm bore this is the largest MGCD size, delivering 1400.9 N each way at 0.5 MPa; if your load needs less, step down to the 50 mm or 40 mm bore to save air and cost. Choose the MGCD when you need equal force in both directions plus smooth cushioned stops; if you only need a single rod with a cushion, the MGC is the equivalent, and for a bumper-type double-rod cylinder in smaller bores the MGD covers 20 to 40 mm. The variable air cushion at both ends lets you tune deceleration for high-speed cycles, and the through-rod gives natural anti-rotation plus a rear rod end for a stop flag or second load. Specify FA flange or LB foot mounting, add I or Y knuckles on the rod ends, and order the S suffix if you plan to fit CMSG, DMSG or EMSG switches. For the long 400 mm stroke, keep side loads off the rods and use external guides; note the cushion decelerates but does not lock the piston, so fit a pilot check valve or external rod lock if the load must hold on air loss. Maximum standard stroke for this bore is 500 mm, so the 400 mm stroke is a standard build.
Quick checklist
Because both sides of the piston see the rod-side area, force is equal in both directions: 1400.9 N at 0.5 MPa and 1961.2 N at 0.7 MPa, with a theoretical maximum of 285.7 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof pressure is 1.5 MPa (215 psi), the fluid is air filtered to 40 um, speed range is 30-800 mm/s, and the temperature range is -20 to +70 C.
The MGCD63X400 has an adjustable air cushion at both ends that decelerates the piston for smooth high-speed stops; it is not a lock, so use a pilot check valve or external rod lock to hold a load on air loss. Unlike the MGD, which uses fixed bumper pads, the MGCD cushion is adjustable. Unlike the single-rod MGC, the MGCD is a double rod cylinder, so force is equal both ways and the rear rod end can carry a flag, stop, or second load. Adding the S magnet code enables CMSG, DMSG or EMSG sensors.
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