
The AirTAC Airtac MGCD Stainless Steel Mini Air Cylinder MGCD25X400 is a genuine double acting, double rod + cushion JIS-standard round-body mini air cylinder with a Ø25mm bore and 400mm 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 MGCD25X400 is a double acting, double rod JIS round-body mini cylinder with a 25 mm bore and a 400 mm stroke. A piston rod exits both covers with the same M10x1.25 male thread at each end, so the rod-side area is active in both directions and the output force is equal either way: 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. Both ends carry a variable air cushion, so the piston decelerates smoothly at each end of the long 400 mm travel instead of slamming into the covers, which suits higher speeds and heavier moving loads.
The barrel is SUS304 stainless with hard-chrome plated rods and riveted covers, built to the JIS mini-cylinder footprint. Air filtered to 40 um drives it at 0.15-1.0 MPa (22-145 psi), proof pressure is 1.5 MPa (215 psi), it runs from -20 to +70 C at 30-800 mm/s, and ports are 1/8". For a realistic working load, size around 0.6 of the thrust, roughly 12 kgf horizontal; vertically, halve the 206.1 N for about 10 kg. The 400 mm stroke exceeds the 300 mm standard maximum for this bore, so it is a made-to-order length. Note this model has no magnet: without the optional S code no CMSG, DMSG or EMSG sensor can be fitted, and the cylinder does not hold its load on air loss, so add an external rod lock or pilot check valve where holding matters.
| Model | Airtac MGCD Stainless Steel Mini Air Cylinder MGCD25X400 |
|---|---|
| Series | MGCD JIS mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 400 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. |
| ×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 resists rotation while the variable air cushions soften both ends, letting the 25 mm bore shuttle small parts at speed over the full 400 mm travel without hard stops.
Rod ends on both covers each carry a load, and the adjustable cushions give a smooth 206.1 N-per-side approach at 0.5 MPa, ideal for light pressing or marking where a gentle landing protects the part.
Use the rear rod end to drive a flag or secondary mechanism while the front rod does the work; order the -S version with CMSG or DMSG sensors for position feedback along the 400 mm stroke.
Size up or down by force: the 25 mm bore gives 206.1 N each way at 0.5 MPa, the 20 mm bore about 131.9 N, and the 32 mm bore about 345.6 N. If you need a double-rod cylinder at this size without cushioning, look at the MGD (bumper ends, 20-40 mm); if you want a single rod with a cushion, the MGC is the equivalent. Choose the MGCD25X400 when equal force in both directions, anti-rotation guidance from the through-rod, and adjustable deceleration at both ends of a long stroke all matter. Mounting is LB foot or FA flange, with I and Y rod knuckles available (no CB or SDB). Threads are PT as standard. If you need end-of-stroke switching, order the -S variant to enable CMSG, DMSG or EMSG sensors; this non-S model cannot take one. At 400 mm stroke, support the rod or keep side loads low to protect the bearings.
Quick checklist
Because the rod exits both covers, the rod-side area works in both directions, so output is equal either way: 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 range -20 to +70 C, speed 30-800 mm/s, and the air must be filtered to 40 um. Ports are 1/8" and the rod thread is M10x1.25 at both ends.
The cushion is an adjustable air cushion at both ends: you tune it to decelerate the piston smoothly near each end of the stroke, which suits higher speeds and heavier loads. It is not a brake, so the cylinder will not hold its load on air loss; add an external rod lock or pilot check valve for that. Unlike the MGD, which uses fixed bumper pads, the MGCD has this adjustable cushion; unlike the single-rod MGC, the MGCD has a rod at both ends, giving equal force both ways and a rear rod end for a stop, flag or second load. The optional -S code adds a magnet for CMSG, DMSG or EMSG sensors; this model has no magnet and accepts no sensor.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.