Airtac MGCD Stainless Steel Mini Air Cylinder MGCD63X300
The AirTAC Airtac MGCD Stainless Steel Mini Air Cylinder MGCD63X300 is a genuine double acting, double rod + cushion JIS-standard round-body mini air cylinder with a Ø63mm bore and 300mm 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
- Stroke300 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 MGCD63X300
The AirTAC MGCD63X300 is a double acting, double rod JIS round-body mini cylinder with a 63 mm bore and 300 mm stroke. A rod exits both covers with the same M18x1.5 male thread at each end, so both sides of the piston see the rod-side area and the output force is equal in both directions: 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. Unlike a fixed bumper pad, this variant carries a variable air cushion at both ends, adjustable to decelerate the piston smoothly for high-speed or heavier-load stops. Because the rear rod end moves in sync with the front, it can carry a stop flag, position flag or a second load.
Construction follows the JIS mini-cylinder footprint with a riveted SUS304 stainless barrel and hard-chrome plated 20 mm rods for corrosion resistance and low wear. The two-way lubricant-storing piston seal extends service life. 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, temperature range -20 to +70 C and speed 30-800 mm/s. Ports are 1/4". A practical working load is about 85 kgf vertically (roughly 0.6 of the 1400.9 N force at 0.5 MPa). This model ships without the magnet; adding the optional S code enables CMSG, DMSG or EMSG switch sensing. Mounting is LB foot or FA flange, with I and Y rod knuckles available.
Airtac MGCD Stainless Steel Mini Air Cylinder MGCD63X300 Technical Specifications
| Model | Airtac MGCD Stainless Steel Mini Air Cylinder MGCD63X300 |
|---|---|
| Series | MGCD JIS mini cylinder |
| Bore size | Ø63 mm |
| Stroke | 300 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 MGCD63X300
| MGCD | JIS round-body mini cylinder (double-rod, variable cushion). |
|---|---|
| 63 | Bore size in mm. |
| ×300 | 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 MGCD63X300 Is Used
High-speed anti-rotation transfer
The through-rod resists load rotation while the variable air cushion at each end lets the 63 mm bore run at speed and still stop smoothly, moving jigs or pallets over the 300 mm stroke with about 1400.9 N of equal force either way.
Twin-load press with soft stop
Front and rear rod ends each deliver about 142 kgf at 0.5 MPa, so one MGCD63X300 can press or stake two parts in line, with the adjustable air cushions giving a controlled, non-shock seating at both ends of the cycle.
Rear-flag slide for switch zones
Mount a stop or position flag on the rear rod end so it tracks the piston across the 300 mm stroke, giving a clean trigger point for CMSG/DMSG/EMSG switches on the -S version in slide and indexing fixtures.
Is the Airtac MGCD Stainless Steel Mini Air Cylinder MGCD63X300 the Right Cylinder?
Choose the MGCD63X300 when you need the largest cushioned MG-family bore with equal force in both directions and a through-rod for anti-rotation or a rear accessory. At 1400.9 N per side at 0.5 MPa it suits heavy transfer, clamping and press applications that a smaller double-rod cylinder cannot serve; the 300 mm stroke sits well inside the 500 mm maximum standard stroke for this bore. If you need a double-rod cylinder with a fixed bumper instead of an adjustable cushion in a smaller bore (20 to 40 mm), look at the MGD; if a single rod with a cushion is enough, the MGC offers the same cushioning in a conventional layout. For position feedback, order the -S version to accept CMSG, DMSG or EMSG switches. Mount on LB feet or an FA flange, and use I or Y knuckles where the load articulates. On long strokes, support the load externally to limit side loading on the rods, and remember the cushion only decelerates the stroke ends: for load holding against air loss, add an external rod lock or pilot check valve.
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 MGCD63X300 FAQ
Because it is a double rod cylinder, the force is equal in both directions: 1400.9 N (about 142.8 kgf) at 0.5 MPa and 1961.2 N (about 200 kgf) 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 fluid is air filtered to 40 um, the working temperature is -20 to +70 C and the speed range is 30-800 mm/s. Ports are 1/4" and the rod thread is M18x1.5 at both ends.
The MGCD63X300 has an adjustable air cushion at both ends that decelerates the piston near each stroke end, allowing higher speeds and heavier loads than a hard stop would permit; it is not a lock and will not hold the load on air loss, so use an external rod lock or pilot check valve for holding. The MGD is also a double rod cylinder but uses fixed bumper pads instead of an adjustable cushion and is offered only in bores 20 to 40 mm. The MGC has the same cushioning but a single rod. Add the S code to fit CMSG, DMSG or EMSG magnetic switches.
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