Airtac MGCD Stainless Steel Mini Air Cylinder MGCD25X250S
The AirTAC Airtac MGCD Stainless Steel Mini Air Cylinder MGCD25X250S is a genuine double acting, double rod + cushion JIS-standard round-body mini air cylinder with a Ø25mm bore and 250mm stroke, 1/8" air ports and a SUS304 stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ25 mm
- Stroke250 mm
- Port size1/8"
- Acting typeDouble acting, double rod + cushion
- Rod threadM10×1.25
- CushionVariable air cushion, both ends
About the Airtac MGCD Stainless Steel Mini Air Cylinder MGCD25X250S
The AirTAC MGCD25X250S is a JIS-standard round-body mini cylinder, double acting and double rod, with a variable air cushion at both ends. Because a 10 mm rod exits both covers with the same M10x1.25 male thread, both strokes work on the rod-side area, so the output is equal in each direction: 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 end, letting this 25 mm bore handle higher speeds or heavier moving loads than an unbuffered mini cylinder, while the through-rod resists rotation and gives you a rear rod end for a stop flag, switch trigger, or a second load.
Construction follows the JIS mini-cylinder footprint: a SUS304 stainless barrel with riveted, rolled covers and a hard-chrome-plated rod for long seal and bearing life. The two-way lubricant-storing piston seal reduces maintenance intervals. Operating pressure is 0.15-1.0 MPa (22-145 psi) with a 1.5 MPa (215 psi) proof pressure, air filtered to 40 um, a temperature range of -20 to +70 C, and speeds of 30-800 mm/s. This S-coded model carries a magnet, so CMSG, DMSG, or EMSG switches can be clipped onto the barrel for end-of-stroke sensing. A practical sizing note: at 0.5 MPa the 206.1 N thrust is roughly 21 kgf, so for a vertical lift plan on about 10 kg including friction and you stay within a safe margin.
Airtac MGCD Stainless Steel Mini Air Cylinder MGCD25X250S Technical Specifications
| Model | Airtac MGCD Stainless Steel Mini Air Cylinder MGCD25X250S |
|---|---|
| Series | MGCD JIS mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 250 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.
Theoretical Output Force (Ø25mm)
| 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).
Model Code: Airtac MGCD Stainless Steel Mini Air Cylinder MGCD25X250S
| MGCD | JIS round-body mini cylinder (double-rod, variable cushion). |
|---|---|
| 25 | Bore size in mm. |
| ×250 | 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.
Where the Airtac MGCD Stainless Steel Mini Air Cylinder MGCD25X250S Is Used
High-speed anti-rotation transfer
The through-rod keeps the payload from spinning during fast 250 mm push-pull transfers, while the variable air cushion at both ends absorbs the stop at 30-800 mm/s without metal impact.
Twin-load press with soft stop
Rod ends on both covers press two light parts at once with equal 206.1 N force each way at 0.5 MPa, and the adjustable cushion gives a gentle landing on delicate assemblies.
Rear-switch sensing slide
The rear rod end drives a flag past CMSG, DMSG, or EMSG switches for compact stroke verification on a 250 mm slide, with the magnet already fitted on this S model.
Is the Airtac MGCD Stainless Steel Mini Air Cylinder MGCD25X250S the Right Cylinder?
Size the MGCD25X250S by force, not bore alone: at 206.1 N per direction it suits light transfer, indexing, and twin-load tasks; step up to MGCD32 or MGCD40 if you need 345.6 N or 527.8 N each way, or down to MGCD20 for 131.9 N. Choose this MGCD over the MGD when you need adjustable deceleration at both ends rather than a fixed bumper, and over the single-rod MGC when equal force both ways, anti-rotation, or a rear rod end matters. The 250 mm stroke is within the 300 mm standard range for this bore, so no nonstandard surcharge applies. Mount with the LB foot or FA flange, and add I or Y rod knuckles for off-axis links (SDB and CB are not offered). The fitted magnet accepts CMSG, DMSG, or EMSG switches. For long 250 mm strokes, keep side load off the rod and guide the load externally; note the cushion only slows the piston near each end and does not hold position on air loss, so fit a pilot check valve or external lock where holding is required.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G / NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting (LB / FA) & knuckle
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Do not dismantle the riveted front/back covers.
- check On first run, back off the cushion and release gradually.
- check Installation by qualified personnel per AirTAC docs.
Airtac MGCD Stainless Steel Mini Air Cylinder MGCD25X250S FAQ
As a double rod cylinder both strokes work on the rod-side area, so output is equal each 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), fluid is air filtered to 40 um, temperature range -20 to +70 C, and speed 30-800 mm/s. Ports are 1/8" and the rod thread is M10x1.25 on both ends.
The MGCD25X250S has an adjustable air cushion at both ends that decelerates the piston near each cover for smooth high-speed stops; it is a brake for the end of travel, not a position lock, so use an external rod lock or pilot check valve to hold a load on air loss. Unlike the MGD, which uses fixed bumper pads, the cushion here is adjustable. Unlike the single-rod MGC, the MGCD has a rod at both covers, giving equal force both directions and anti-rotation. The fitted magnet accepts CMSG, DMSG, or EMSG switches.
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