Airtac MGCD Stainless Steel Mini Air Cylinder MGCD25X250
The AirTAC Airtac MGCD Stainless Steel Mini Air Cylinder MGCD25X250 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 MGCD25X250
The AirTAC MGCD25X250 is a double acting, double-rod JIS-standard round-body mini cylinder with a 25 mm bore and a 250 mm stroke. Because a 10 mm rod exits both covers with the same M10x1.25 male thread each end, the effective area is the rod-side area in both directions, so 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. A variable air cushion at both ends lets you dial in smooth deceleration for higher speeds or heavier loads, while the through-rod resists rotation and gives you a rear rod end for a stop flag, position switch trip, or a second load. This version ships without the magnet option, so no position sensor can be fitted; order the -S code if you need CMSG, DMSG or EMSG switch sensing.
Construction follows the JIS mini-cylinder footprint with a riveted SUS304 stainless barrel and hard-chrome-plated carbon steel rod, sealed by a two-way lubricant-storing piston seal. 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 cycles at 30-800 mm/s. Ports are 1/8". As a practical sizing rule, take about 0.6 of the rated force, which puts a safe vertical load near 10 kg for this cylinder. Mounting is LB foot or FA flange, with I and Y rod knuckles available; note that the cushion decelerates the stroke ends only and is not a lock, so use an external rod lock or pilot check valve if the load must be held on air loss.
Airtac MGCD Stainless Steel Mini Air Cylinder MGCD25X250 Technical Specifications
| Model | Airtac MGCD Stainless Steel Mini Air Cylinder MGCD25X250 |
|---|---|
| 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 MGCD25X250
| 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 MGCD25X250 Is Used
High-speed anti-rotation transfer
The 206.1 N equal-force through-rod slides small fixtures or parts laterally at speed, with the variable air cushion absorbing end-of-stroke shock and the double rod preventing rotation without external guides.
Twin-load press with soft stop
Rod ends on both sides each carry a light pressing or staking tool, delivering about 206 N per direction at 0.5 MPa, while the adjustable cushion gives a smooth, non-impact finish at both ends.
Rear-flag slide with switch trip
The rear rod end drives a cam flag past a position switch on a reciprocating slide; the cushioned 250 mm stroke keeps the cycle smooth, and the -S option adds CMSG/DMSG/EMSG sensing if ordered with magnet.
Is the Airtac MGCD Stainless Steel Mini Air Cylinder MGCD25X250 the Right Cylinder?
Size the MGCD25X250 when your application needs roughly 206 N (about 21 kgf) of equal force in both directions over a 250 mm stroke with cushioned stops. If you need more force, step up to MGCD32 or MGCD40; if 206 N is generous for the load, MGCD20 is the smallest bore in the range. For a double-rod cylinder with a fixed bumper instead of an adjustable cushion at bores 20-40, choose the MGD; for a single-rod cushioned cylinder, the MGC is the equivalent. The variable air cushion suits high-speed or high-inertia moves where hard end-of-stroke impact must be avoided, and the through-rod provides natural anti-rotation plus a rear rod end for a flag or second tooling point. This model has no magnet, so it cannot carry a CMSG/DMSG/EMSG switch; specify the -S option for sensing. Mount with LB foot or FA flange and add I or Y knuckles where the rod sees angular motion. At 250 mm the stroke is well within the 300 mm standard limit for this bore, but keep side loads on the long rod low and guide external loads separately.
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 MGCD25X250 FAQ
Because the double-rod design exposes the rod-side area in both directions, force 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 -20 to +70 C, speed 30-800 mm/s, and the medium is air filtered to 40 um. Ports are 1/8" and the rod thread is M10x1.25 on both ends.
The MGCD25X250 has an adjustable air cushion at both stroke ends that decelerates the piston for smooth stops at higher speeds or with heavier loads; it is not a lock, so an external rod lock or pilot check valve is needed to hold a load on air loss. Unlike the MGD, which uses a fixed bumper pad, the cushion here is adjustable. Unlike the single-rod MGC, the MGCD has a rod at both covers, giving equal force in both directions and anti-rotation. This version has no magnet, so sensors cannot be mounted; the -S option enables CMSG/DMSG/EMSG switches.
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