
The AirTAC Airtac MGCD Stainless Steel Mini Air Cylinder MGCD40X450S is a genuine double acting, double rod + cushion JIS-standard round-body mini air cylinder with a Ø40mm bore and 450mm stroke, 1/8" air ports and a SUS304 stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
The AirTAC MGCD40X450S is a double acting, double-rod JIS mini cylinder with a 40 mm bore and a 450 mm stroke, fitted with a variable air cushion at both ends. Because a 16 mm rod exits both covers with the same M14x1.5 male thread, the piston works on the rod-side area in each direction, so the output force is equal both ways: about 527.8 N at 0.5 MPa and 738.9 N at 0.7 MPa. The adjustable cushion decelerates the piston smoothly at each end of the long 450 mm travel, which makes this cylinder a strong choice for higher-speed slides and heavier moving loads. The fitted magnet allows CMSG, DMSG or EMSG switches to be mounted for end-of-stroke detection.
Construction follows the JIS round-body mini format: a riveted SUS304 stainless barrel with hard-chrome plated carbon-steel rods, and a two-way lubricant-storing piston seal for long service life. It runs on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), withstands a proof pressure of 1.5 MPa (215 psi), covers -20 to +70 C, and reaches speeds of 30-800 mm/s. As a practical sizing guide, apply about 0.6 of the force at 0.5 MPa, which gives a usable working load near 317 N, or roughly 32 kg for a vertical lift on this 40 mm bore.
| Model | Airtac MGCD Stainless Steel Mini Air Cylinder MGCD40X450S |
|---|---|
| Series | MGCD JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 450 mm |
| Acting type | Double acting, double rod + cushion |
| Port size | 1/8" |
| Rod thread | M14×1.5 |
| 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 | 528 N |
| 0.7 MPa | 739 N |
| Max (@1.0 MPa) | 108 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). |
|---|---|
| 40 | Bore size in mm. |
| ×450 | 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 rotating while the variable air cushion brings the 450 mm slide to a smooth stop at both ends, letting the MGCD40X450S run at the top of its 30-800 mm/s range.
Rod ends on both covers carry two workpieces, and the equal 527.8 N force each way at 0.5 MPa (about 32 kg safe vertical load) suits light pressing or staking where the cushion absorbs the impact.
The rear rod end drives a switch or position flag while the main rod does the work, and the fitted magnet feeds CMSG/DMSG/EMSG signals from both ends of the 450 mm stroke.
Size the MGCD40X450S when you need a cushioned, equal-force cylinder in the 40 mm class with a long 450 mm stroke; step down to bore 20/25/32 for lighter loads or up to bore 50/63 when you need more than about 824 N at 0.5 MPa. If you want a double-rod cylinder with a fixed bumper pad instead of an adjustable cushion at bore 20-40, choose the MGD; if a single rod with a cushion is enough, the MGC is the equivalent single-rod option. The through-rod design resists rotation and gives you a rear rod end for a stop, flag or second load. Mount with the FA flange or LB foot, add I or Y rod knuckles on the working end, and remember the -S magnet on this model is what enables CMSG/DMSG/EMSG sensing. For long strokes like 450 mm, support the rod against side load and use the cushion to soften high-speed stops; the cushion only decelerates the stroke end and does not hold the load on air loss, so add an external rod lock or pilot check valve where holding is required.
Quick checklist
Because both sides of the piston see the rod-side area, the force is equal in both directions: 527.8 N at 0.5 MPa and 738.9 N at 0.7 MPa, with a theoretical maximum of 107.6 kgf at 1.0 MPa. It runs on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), takes a proof pressure of 1.5 MPa (215 psi), operates from -20 to +70 C, and covers speeds of 30-800 mm/s over its 450 mm stroke.
The MGCD40X450S has an adjustable air cushion at both ends that decelerates the piston for smooth, high-speed stops; it is not a brake and will not hold the load on air loss, so use an external rod lock or pilot check valve for holding. Unlike the MGD, which uses fixed bumper pads, the cushion here is adjustable. Unlike the single-rod MGC, this is a double-rod build with equal force both ways, and the fitted magnet accepts CMSG, DMSG or EMSG switches.
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