Airtac MGCD Stainless Steel Mini Air Cylinder MGCD50X250S
The AirTAC Airtac MGCD Stainless Steel Mini Air Cylinder MGCD50X250S is a genuine double acting, double rod + cushion JIS-standard round-body mini air cylinder with a Ø50mm bore and 250mm stroke, 1/4" air ports and a SUS304 stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ50 mm
- Stroke250 mm
- Port size1/4"
- Acting typeDouble acting, double rod + cushion
- Rod threadM18×1.5
- CushionVariable air cushion, both ends
About the Airtac MGCD Stainless Steel Mini Air Cylinder MGCD50X250S
The AirTAC MGCD50X250S is a double acting, double-rod JIS mini cylinder with a 50 mm bore and 250 mm stroke, built with a variable air cushion at both ends. Because a 20 mm rod exits both covers with the same M18x1.5 male thread, the rod-side area is effective in each direction, so output is equal both ways: about 824.3 N at 0.5 MPa and 1154 N at 0.7 MPa, with a theoretical maximum of 168.1 kgf at 1.0 MPa. As a rule of thumb, size the working load at roughly 0.6 of that force, which suits this cylinder to about 494 N of continuous duty, or a vertical load of around 42 kg. The adjustable cushion decelerates the piston smoothly at each end, so the 250 mm stroke can be run at higher speeds with heavier loads without hard metal-to-metal stops.
Construction follows the JIS round-body mini format: a riveted SUS304 stainless barrel with hard-chrome plated rods for long seal and bearing life, and a two-way lubricant-storing piston seal. Air supply should be filtered to 40 um, with an operating pressure of 0.15-1.0 MPa (22-145 psi), a proof pressure of 1.5 MPa (215 psi), a temperature range of -20 to +70 C, and speeds of 30-800 mm/s. The fitted magnet (S code) allows CMSG, DMSG or EMSG switches to be mounted along the barrel. Ports are 1/4" with PT thread; mounting options are FA flange or LB foot, with I and Y rod knuckles available. The rear rod end can carry a stop flag, position marker or a second load.
Airtac MGCD Stainless Steel Mini Air Cylinder MGCD50X250S Technical Specifications
| Model | Airtac MGCD Stainless Steel Mini Air Cylinder MGCD50X250S |
|---|---|
| Series | MGCD JIS mini cylinder |
| Bore size | Ø50 mm |
| Stroke | 250 mm |
| Acting type | Double acting, double rod + cushion |
| Port size | 1/4" |
| Rod thread | M18×1.5 |
| 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.
Theoretical Output Force (Ø50mm)
| Pressure | Force (both ways) |
|---|---|
| 0.5 MPa | 825 N |
| 0.7 MPa | 1155 N |
| Max (@1.0 MPa) | 168 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 MGCD50X250S
| MGCD | JIS round-body mini cylinder (double-rod, variable cushion). |
|---|---|
| 50 | 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 MGCD50X250S Is Used
High-speed anti-rotation transfer
The 250 mm through-rod keeps the toolplate square without external guides while the variable air cushion absorbs the stop at each end, letting the 824.3 N push and pull move pallets quickly and smoothly.
Twin-load press with soft stop
Rod ends on both sides each carry a small pressing pad, so the 50 mm bore delivers about 824.3 N per direction at 0.5 MPa, and the adjustable cushion gives a gentle settle at bottom of stroke.
Rear-switch slide with position flag
The rear rod end drives a stop flag past CMSG or DMSG switches on the magnet-fitted barrel, giving end-of-travel signals on a cushioned 250 mm slide rated 30-800 mm/s.
Is the Airtac MGCD Stainless Steel Mini Air Cylinder MGCD50X250S the Right Cylinder?
Choose the MGCD50X250S when you need a cushioned, double-acting cylinder that pushes equally hard in both directions at the 50 mm force class (824.3 N each way at 0.5 MPa) over a 250 mm stroke. If you need more force, step up to bore 63 (1400.9 N each way); if 824.3 N gives ample margin, bore 40 (527.8 N) may save space. For a double-rod cylinder with a fixed bumper instead of an adjustable cushion in bores 20-40, see the MGD; for a single rod with cushion, see the MGC. The through-rod gives natural anti-rotation and a rear rod end for a stop or flag. Mount with FA flange or LB foot and add I or Y knuckles for linkage work; the fitted magnet supports CMSG/DMSG/EMSG switches. For long strokes like 250 mm, support the side load carefully and keep radial forces low to protect the rod bearings.
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 MGCD50X250S FAQ
Because the double rod makes the rod-side area effective both ways, output is equal in each direction: 824.3 N at 0.5 MPa and 1154 N at 0.7 MPa, with a theoretical maximum of 168.1 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof pressure is 1.5 MPa (215 psi), temperature range is -20 to +70 C, speed is 30-800 mm/s, and the air must be filtered to 40 um. The 250 mm stroke is within the 500 mm maximum standard stroke for this 50 mm bore.
The MGCD50X250S has an adjustable air cushion at both ends that decelerates the piston near each cover for smooth, high-speed stops; it is not a lock, so the load is not held on air loss and an external rod lock or pilot check valve is recommended for holding. Unlike the MGD, which uses fixed bumper pads, the MGCD cushion is adjustable. Unlike the single-rod MGC, the MGCD has a rod at both ends, so force is equal in both directions and the rear rod end can carry a flag or second load. The fitted magnet also accepts CMSG, DMSG or EMSG switches.
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