Airtac MGCD Stainless Steel Mini Air Cylinder MGCD63X125S
The AirTAC Airtac MGCD Stainless Steel Mini Air Cylinder MGCD63X125S 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 MGCD63X125S
The AirTAC MGCD63X125S is a double acting, double rod JIS round-body mini cylinder with a 63 mm bore and 125 mm stroke. A hard-chrome rod exits both covers with an M18x1.5 male thread at each end, so the piston drives from the rod-side area in both directions and delivers an equal 1400.9 N at 0.5 MPa (1961.2 N at 0.7 MPa) whichever way it moves. A variable air cushion at both ends lets you dial in smooth deceleration for high-speed or heavier-duty stops, and the rear rod end can carry a second load or a position flag. The theoretical maximum is 285.7 kgf at 1.0 MPa; applying the usual 0.6 working-load rule of thumb, plan on roughly 85 kg of safe vertical load at 0.5 MPa.
Construction follows the JIS mini-cylinder footprint with a riveted SUS304 stainless barrel and a hard-chrome (20 um) carbon-steel rod, and the two-way lubricant-storing piston seal keeps friction low over long service. It runs on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), withstands 1.5 MPa (215 psi) proof pressure, operates from -20 to +70 C, and covers 30-800 mm/s. The S code means a magnet is fitted, so CMSG, DMSG or EMSG switches can be clipped on for end-of-stroke sensing. Ports are 1/4"; mounting options are FA flange or LB foot, with I and Y rod knuckles available.
Airtac MGCD Stainless Steel Mini Air Cylinder MGCD63X125S Technical Specifications
| Model | Airtac MGCD Stainless Steel Mini Air Cylinder MGCD63X125S |
|---|---|
| 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 MGCD63X125S
| 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 MGCD63X125S Is Used
High-speed anti-rotation transfer
The through-rod resists rotation while the adjustable cushions tame 800 mm/s travel, letting this 1400.9 N cylinder index pallets or fixtures smoothly at both ends of the 125 mm stroke.
Twin-load press with soft stop
Rod ends on both covers each carry a load, and the variable air cushions decelerate the press gently into the workpiece, useful for light forming or joining at up to about 85 kg safe vertical load.
Rear-switch slide
The rear rod end drives a position flag past CMSG or DMSG switches while the main rod does the work, giving a sensed, cushioned slide for gating or diverting on packaging lines.
Is the Airtac MGCD Stainless Steel Mini Air Cylinder MGCD63X125S the Right Cylinder?
At 63 mm bore this is the largest MGCD size, giving 1400.9 N each way at 0.5 MPa, so size down to a 50 mm bore if your load needs under about 824 N per direction, or up from a 40 mm bore if 527.8 N is marginal. If you need a bumper-type double-rod cylinder in a smaller bore, look at the MGD (20-40 only); for a single rod with cushion, the MGC is the equivalent. Choose the MGCD63X125S when you want adjustable cushioning at both ends plus a through-rod for anti-rotation guidance, a stop flag, or a twin-load setup. The fitted magnet supports CMSG/DMSG/EMSG switches; order FA or LB mounting and I/Y knuckles as needed. For strokes beyond the 500 mm maximum standard stroke or significant side loads, add external guidance.
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 MGCD63X125S FAQ
Because both sides of the piston see the rod-side area, output is equal in both directions: 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 1.5 MPa (215 psi), temperature -20 to +70 C, and speed 30-800 mm/s on air filtered to 40 um. Ports are 1/4" and the rod thread is M18x1.5 at both ends.
The cushion is an adjustable air cushion at both stroke ends: you regulate the bleed to decelerate the piston smoothly for higher speeds or heavier loads. It only brakes the end of travel, so the cylinder will not hold a load on air loss; add an external rod lock or pilot check valve for that. Unlike the MGD, which uses fixed bumper pads and stops at bore 40, the MGCD has adjustable cushions and is offered up to bore 63. Unlike the single-rod MGC, the MGCD's through-rod gives equal force both ways and anti-rotation. The S in the code means a magnet is fitted for CMSG/DMSG/EMSG switches.
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