Airtac MGCD Stainless Steel Mini Air Cylinder MGCD50X125S
The AirTAC Airtac MGCD Stainless Steel Mini Air Cylinder MGCD50X125S is a genuine double acting, double rod + cushion JIS-standard round-body mini air cylinder with a Ø50mm bore and 125mm 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
- Stroke125 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 MGCD50X125S
The AirTAC MGCD50X125S is a double acting, double-rod JIS mini cylinder with a 50 mm bore and 125 mm stroke. Because a 20 mm hard-chrome rod exits both covers, the piston sees the rod-side area 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. A variable air cushion at both ends lets you tune the deceleration for smooth, high-speed stops, and the rear rod end can carry a stop flag, position sensor trip, or a second light load. Operating range is 0.15-1.0 MPa (22-145 psi) with a 1.5 MPa (215 psi) proof pressure, 30-800 mm/s speed, and -20 to +70 C temperature.
Construction follows the JIS round-body mini format: a riveted SUS304 stainless barrel with hard-chrome plated rods for corrosion resistance and long seal life, and a two-way lubricant-storing piston seal. Air supply should be filtered to 40 um. The S code means a magnet is fitted, so CMSG, DMSG, or EMSG switches can be clipped on for end-of-stroke signaling. As a practical sizing guide, the 824.3 N push at 0.5 MPa is roughly 84 kgf, so a safe vertical load is about 50 kg at the usual 0.6 rule of thumb. Mounting options are FA flange or LB foot, with I and Y rod knuckles available.
Airtac MGCD Stainless Steel Mini Air Cylinder MGCD50X125S Technical Specifications
| Model | Airtac MGCD Stainless Steel Mini Air Cylinder MGCD50X125S |
|---|---|
| Series | MGCD JIS mini cylinder |
| Bore size | Ø50 mm |
| Stroke | 125 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 MGCD50X125S
| MGCD | JIS round-body mini cylinder (double-rod, variable cushion). |
|---|---|
| 50 | 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.
Where the Airtac MGCD Stainless Steel Mini Air Cylinder MGCD50X125S Is Used
High-speed anti-rotation transfer
The through-rod resists rotation while the variable air cushion tames end-of-stroke shock, letting a 50 mm bore shuttle pallets or fixtures at up to 800 mm/s with clean, repeatable stops.
Twin-load press with soft stop
Rod ends on both covers let the MGCD50X125S carry two light workpieces or a tool and a flag, while adjustable cushioning gives a gentle final seat on each 125 mm stroke.
Sensor-flagged slide with rear rod
With the fitted magnet and CMSG/DMSG/EMSG switches on the front rod, the rear rod end drives a cam or indicator, giving position feedback and a secondary output from one cylinder.
Is the Airtac MGCD Stainless Steel Mini Air Cylinder MGCD50X125S the Right Cylinder?
Choose the MGCD50X125S when you need equal force in both directions, anti-rotation guidance from a through-rod, and adjustable cushioning for fast or heavy cycles. At 824.3 N per side at 0.5 MPa it sits in the upper-middle of the MGCD range (bores 20 to 63); step up to the 63 mm bore for about 1400.9 N, or down to 40 mm for 527.8 N. If you want a double-rod cylinder without cushioning in the smaller 20-40 mm sizes, look at the MGD with fixed bumpers; for a single rod with cushion, the MGC is the equivalent. Stroke 125 mm is a standard length for this bore (up to 500 mm standard). Specify -S for switch capability, FA flange or LB foot mounting, and I or Y knuckles as needed. For long strokes or side loads, add external guidance; note the cushion only decelerates the stroke ends and does not lock the load, so use a pilot check valve or external rod 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 MGCD50X125S FAQ
Output is equal in both directions: 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 1.5 MPa (215 psi), temperature -20 to +70 C, speed 30-800 mm/s, and the air supply should be filtered to 40 um. Ports are 1/4" and the rod thread is M18x1.5 on both ends.
The MGCD50X125S has an adjustable air cushion at both ends that decelerates the piston near each stroke end, allowing higher speeds and heavier loads than an un-cushioned cylinder. It is a double-rod design, so force is identical both ways and the rear rod end is usable. The MGD is a double-rod cylinder with fixed bumper pads instead of an air cushion (bores 20-40 only), and the MGC is a single-rod cushioned cylinder. The S code means a magnet is fitted for CMSG, DMSG, or EMSG switches.
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