Airtac MGCD Stainless Steel Mini Air Cylinder MGCD20X175S
The AirTAC Airtac MGCD Stainless Steel Mini Air Cylinder MGCD20X175S is a genuine double acting, double rod + cushion JIS-standard round-body mini air cylinder with a Ø20mm bore and 175mm stroke, M5×0.8 air ports and a SUS304 stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ20 mm
- Stroke175 mm
- Port sizeM5×0.8
- Acting typeDouble acting, double rod + cushion
- Rod threadM8×1.25
- CushionVariable air cushion, both ends
About the Airtac MGCD Stainless Steel Mini Air Cylinder MGCD20X175S
The AirTAC MGCD20X175S is a JIS-standard round-body mini cylinder, double acting, with a double rod: a piston rod exits BOTH covers with the same M8x1.25 male thread at each end, so the two rod ends move together and the output force is EQUAL in both directions. Because both sides of the piston see the rod-side area, this 20 mm bore delivers about 131.9 N each way at 0.5 MPa and 184.7 N at 0.7 MPa, with a theoretical maximum of 26.9 kgf at 1.0 MPa. A variable air cushion at both ends decelerates the piston smoothly at each end of the 175 mm stroke, so you can run higher speeds or carry heavier loads without hard metal-to-metal stops. The fitted magnet (the S code) allows CMSG, DMSG or EMSG switches to be mounted for end-of-stroke detection.
Construction follows the JIS mini-cylinder footprint: a SUS304 stainless barrel with riveted, rolled covers and hard-chrome (20 um) carbon-steel rods, plus a two-way lubricant-storing piston seal. It runs on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), tolerates 1.5 MPa (215 psi) proof pressure, operates from -20 to +70 C, and covers 30-800 mm/s. As a practical sizing rule, plan on roughly 0.6 of the push force for a realistic working load: at 0.5 MPa that is about 79 N, or roughly 6.7 kg for a vertical lift on this 20 mm double-rod cylinder. The rear rod end can also carry a stop flag, position marker or a second light load.
Airtac MGCD Stainless Steel Mini Air Cylinder MGCD20X175S Technical Specifications
| Model | Airtac MGCD Stainless Steel Mini Air Cylinder MGCD20X175S |
|---|---|
| Series | MGCD JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 175 mm |
| Acting type | Double acting, double rod + cushion |
| Port size | M5×0.8 |
| Rod thread | M8×1.25 |
| 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 300 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 (Ø20mm)
| Pressure | Force (both ways) |
|---|---|
| 0.5 MPa | 132 N |
| 0.7 MPa | 185 N |
| Max (@1.0 MPa) | 27 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 MGCD20X175S
| MGCD | JIS round-body mini cylinder (double-rod, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×175 | 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 MGCD20X175S Is Used
High-speed anti-rotation transfer
The through-rod resists load rotation while the variable air cushion softens each end of the 175 mm stroke, letting small fixtures shuttle at speed without hard stops at about 131.9 N per direction.
Twin-load press with soft stop
Both rod ends carry matching light pads so two points are pressed at once, and the adjustable cushion gives a smooth, controlled stop on light marking or assembly duties.
Rear-switch slide with position flag
The fitted magnet accepts CMSG/DMSG/EMSG switches, and the rear rod end mounts a stop or flag for a compact guided slide with cushioned, sensor-checked end positions.
Is the Airtac MGCD Stainless Steel Mini Air Cylinder MGCD20X175S the Right Cylinder?
Size the MGCD20X175S by force, not bore alone: at 20 mm it is the smallest cushioned double-rod cylinder in the MG family, giving about 131.9 N each way at 0.5 MPa. If your load needs more, step up to the 25 mm bore (about 206.1 N) or 32 mm bore (about 345.6 N). Choose this MGCD when you need a variable air cushion at both ends plus a through-rod for anti-rotation guidance or a rear accessory; if you want a double-rod cylinder with a fixed bumper instead of an adjustable cushion at 20-40 mm bores, look at the MGD, and for a single-rod cylinder with a cushion choose the MGC. The variable cushion is a deceleration feature only: it does not lock or hold the load on air loss, so add an external rod lock or pilot check valve where position holding matters. Mount with the LB foot or FA flange, add I or Y rod knuckles at the rod ends (SDB and CB are not available), and note the -S magnet is already fitted for CMSG/DMSG/EMSG switch mounting. The 175 mm stroke is within the 300 mm maximum standard stroke for this bore; for long strokes, support the rod against side load.
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 MGCD20X175S FAQ
Because the double-rod design exposes the rod-side area in both directions, force is equal each way: about 131.9 N at 0.5 MPa and 184.7 N at 0.7 MPa, with a theoretical maximum of 26.9 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 fluid is air filtered to 40 um. The port is M5x0.8 and the rod thread is M8x1.25 at both ends.
The MGCD20X175S has an adjustable air cushion at both ends that decelerates the piston for smooth high-speed stops; it is not a brake and will not hold the load on air loss, so use an external rod lock or pilot check valve for holding. Unlike the MGD, which is a double-rod cylinder with a fixed bumper pad, the MGCD's cushion is adjustable; unlike the MGC, which is single-rod, the MGCD's through-rod gives equal force both directions and a rear rod end for accessories. The fitted -S magnet allows CMSG, DMSG or EMSG switches.
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