Airtac MGCD Stainless Steel Mini Air Cylinder MGCD63X125
The AirTAC Airtac MGCD Stainless Steel Mini Air Cylinder MGCD63X125 is a genuine double acting, double rod + cushion JIS-standard round-body mini air cylinder with a Ø63mm 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.
- BoreØ63 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 MGCD63X125
The AirTAC MGCD63X125 is a JIS-standard round-body mini cylinder, double acting, with a double rod: a 20 mm hard-chrome rod exits both covers with the same M18x1.5 male thread at each end, so both rod ends move together and the output force is equal in both directions. Because each side of the piston sees the rod-side area, this 63 mm bore delivers about 1400.9 N (142.8 kgf) each way at 0.5 MPa and 1961.2 N at 0.7 MPa, with a theoretical maximum of 285.7 kgf at 1.0 MPa. As a rule of thumb, size the real working load at roughly 0.6 of that push force, about 840 N, or about 71 kg for a safe vertical lift.
Unlike a bumper-padded build, this variant carries a variable air cushion at both ends: adjusting screws meter the exhaust so the piston decelerates smoothly at each end of the 125 mm stroke, allowing higher travel speeds and heavier loads without hard impact. The through-rod also gives natural anti-rotation and a free rear rod end you can use for a position stop, a cam flag or a second load. Construction follows the JIS mini footprint with a riveted SUS304 stainless barrel, ports at 1/4", an operating range of 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), -20 to +70 C, and speeds of 30-800 mm/s.
Airtac MGCD Stainless Steel Mini Air Cylinder MGCD63X125 Technical Specifications
| Model | Airtac MGCD Stainless Steel Mini Air Cylinder MGCD63X125 |
|---|---|
| Series | MGCD JIS mini cylinder |
| Bore size | Ø63 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 (Ø63mm)
| Pressure | Force (both ways) |
|---|---|
| 0.5 MPa | 1402 N |
| 0.7 MPa | 1962 N |
| Max (@1.0 MPa) | 286 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 MGCD63X125
| MGCD | JIS round-body mini cylinder (double-rod, variable cushion). |
|---|---|
| 63 | 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 MGCD63X125 Is Used
High-speed anti-rotation transfer
The through-rod keeps the payload from twisting during fast 125 mm shuttle moves, while the variable air cushion at both ends absorbs the stop at conveyor-transfer speeds that would hammer a plain cylinder.
Twin-load press with soft stop
With about 1400.9 N available identically on each rod end at 0.5 MPa, the MGCD63X125 can press or stake two symmetric workpieces at once, and the adjustable cushions give a controlled landing instead of a metal-to-metal slam.
Rear-switch slide
The second rod end carries a cam flag or stop while the front end does the work, and with the S magnet option the CMSG/DMSG/EMSG switches report both end positions on this 63 mm slide.
Is the Airtac MGCD Stainless Steel Mini Air Cylinder MGCD63X125 the Right Cylinder?
At 63 mm bore this is the largest MGCD size, so step down to smaller bores if 1400.9 N per direction at 0.5 MPa is more force than your load needs. Choose the MGCD when you want equal force both ways plus adjustable cushioning at each end; if your bore falls in the 20-40 range and a fixed bumper pad is enough, the MGD double-rod cylinder is the lighter alternative, and for a single rod with a cushion pick the MGC. The 125 mm stroke is within the 500 mm standard range for this bore; longer strokes raise side-load risk, so guide the load externally. Mount with the LB foot or FA flange, add I or Y rod knuckles on the rod ends (SDB and CB are not offered), and order the S code if you want a magnet for CMSG, DMSG or EMSG switches - without it no sensor can be fitted. Note the cushion only decelerates the stroke ends; it is not a lock, so use an external rod lock or pilot check valve where the load must be held on air loss.
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 MGCD63X125 FAQ
Because the double-rod design exposes the rod-side area in both directions, output is equal each way: 1400.9 N at 0.5 MPa and 1961.2 N at 0.7 MPa, with a theoretical maximum of 285.7 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof pressure is 1.5 MPa (215 psi), the medium is air filtered to 40 um, temperature range is -20 to +70 C, and speed is 30-800 mm/s. Ports are 1/4" and the rod thread is M18x1.5 at both ends.
The MGCD63X125 has an adjustable air cushion at both ends: metering screws throttle the exhaust near each stroke end so the piston decelerates smoothly, which suits higher speeds and heavier loads. It is an air cushion, not a fixed bumper pad (that is the MGD, which is bumper-equipped and offered only up to 40 mm bore), and unlike the single-rod MGC the MGCD has a rod at both covers, so force is identical in extend and retract. Add the S code to fit CMSG, DMSG or EMSG magnetic switches.
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