
The AirTAC Airtac MGCD Stainless Steel Mini Air Cylinder MGCD25X125S is a genuine double acting, double rod + cushion JIS-standard round-body mini air cylinder with a Ø25mm bore and 125mm 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 MGCD25X125S is a double acting, double-rod JIS mini cylinder with a 25 mm bore and 125 mm stroke, built with a variable air cushion at both ends. Because a 10 mm rod exits both covers with the same M10x1.25 male thread, the rod-side area is active in each direction, so the output force is equal both ways: about 206.1 N at 0.5 MPa and 288.5 N at 0.7 MPa, with a theoretical maximum of 42 kgf at 1.0 MPa. The adjustable cushion decelerates the piston smoothly at each stroke end, letting this small cylinder run faster or carry heavier loads than an unbuffered equivalent.
Construction follows the JIS round-body mini format: a riveted SUS304 stainless barrel with a hard-chrome-plated carbon steel rod, rated for air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), -20 to +70 C, and speeds of 30-800 mm/s. The fitted magnet (the S code) accepts CMSG, DMSG or EMSG switches for end-of-stroke signalling. A practical sizing rule: take about 0.6 of the push force, so roughly 12 kgf is a safe working load, or about 10 kg halved for a vertical figure. The rear rod end can carry a stop flag, a second load or extra mounting hardware.
| Model | Airtac MGCD Stainless Steel Mini Air Cylinder MGCD25X125S |
|---|---|
| Series | MGCD JIS mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 125 mm |
| Acting type | Double acting, double rod + cushion |
| Port size | 1/8" |
| Rod thread | M10×1.25 |
| 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 300 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 | 206 N |
| 0.7 MPa | 289 N |
| Max (@1.0 MPa) | 42 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). |
|---|---|
| 25 | Bore size in mm. |
| ×125 | 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 tooling square while the variable air cushion absorbs the stop at 125 mm, letting the 206.1 N push-pull slide move small trays quickly without bounce.
Rod ends on both covers let one cylinder drive two light pressing or staking points at about 206.1 N each way at 0.5 MPa, with the adjustable cushion giving a smooth landing on both ends.
The rear rod end carries a cam or flag past CMSG/DMSG/EMSG switches (magnet fitted), while the cushioned 125 mm stroke indexes fixtures at up to 800 mm/s with equal force in return.
Size the MGCD25X125S when you need equal force in both directions plus smooth, adjustable deceleration at both ends of a 125 mm stroke; at 0.5 MPa it delivers 206.1 N each way. For lighter bumper-only double-rod duty in bores 20 to 40, look at the MGD; for a single rod with a cushion, the MGC is the single-rod counterpart. The through-rod also gives natural anti-rotation and a rear rod end for a flag or second load. Mount with the LB foot or FA flange, add I or Y rod knuckles (SDB and CB are not offered), and note the fitted magnet already supports CMSG/DMSG/EMSG switches. Keep side loads off the rod on longer strokes and use an external rod lock or pilot check valve if the load must be held on air loss, since the cushion only decelerates the stroke end.
Quick checklist
It is a double acting, double-rod JIS mini cylinder, bore 25 mm, stroke 125 mm, rod 10 mm with M10x1.25 male thread on both ends and 1/8" ports. Force is equal both ways: 206.1 N at 0.5 MPa and 288.5 N at 0.7 MPa, with a theoretical maximum of 42 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), temperature -20 to +70 C, speed 30-800 mm/s, with a variable air cushion at both ends. The maximum standard stroke for this bore is 300 mm.
The variable air cushion at each end is adjusted with a needle to decelerate the piston smoothly, so the cylinder can run faster or carry more load than an unbuffered unit; it is not a brake, so use an external rod lock or pilot check valve to hold a load on air loss. Because a rod exits both covers, the rod-side area works in both directions and force is equal pushing and pulling. The S in the model code means a magnet is fitted, so CMSG, DMSG or EMSG switches can be mounted. Unlike the MGD (double rod with a fixed bumper) or the single-rod MGC, the MGCD combines a through-rod with an adjustable air cushion.
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