Airtac MGCD Stainless Steel Mini Air Cylinder MGCD20X225S
The AirTAC Airtac MGCD Stainless Steel Mini Air Cylinder MGCD20X225S is a genuine double acting, double rod + cushion JIS-standard round-body mini air cylinder with a Ø20mm bore and 225mm 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
- Stroke225 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 MGCD20X225S
The MGCD20X225S is a double acting, double-rod JIS round-body mini cylinder with a 20 mm bore and 225 mm stroke. A rod exits both covers with the same M8x1.25 male thread at each end, and because both chambers act on the rod-side area the output force is equal in both directions: 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. A variable air cushion at both ends lets you tune the deceleration for smooth stops at higher speeds or with heavier loads, and the fitted magnet (the S code) allows CMSG, DMSG or EMSG switches to be mounted for end-of-stroke sensing.
Construction follows the JIS mini-cylinder footprint with a riveted SUS304 stainless barrel and hard-chrome-plated rods for corrosion resistance and long seal life. The two-way lubricant-storing piston seal runs on air filtered to 40 um, within an operating pressure of 0.15-1.0 MPa (22-145 psi), proof pressure of 1.5 MPa (215 psi), a temperature range of -20 to +70 C and speeds of 30-800 mm/s. As a sizing guide, apply roughly 0.6 of the 131.9 N force for a realistic working load, which suits a safe vertical figure of about 6 kg. Note that the cushion only decelerates the piston at each end; it is not a lock, so use an external rod lock or pilot check valve if the load must be held on air loss.
Airtac MGCD Stainless Steel Mini Air Cylinder MGCD20X225S Technical Specifications
| Model | Airtac MGCD Stainless Steel Mini Air Cylinder MGCD20X225S |
|---|---|
| Series | MGCD JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 225 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 MGCD20X225S
| MGCD | JIS round-body mini cylinder (double-rod, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×225 | 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 MGCD20X225S Is Used
High-speed anti-rotation transfer
The through-rod resists rotation while the variable air cushion absorbs the stop, letting this 131.9 N per direction cylinder shuttle small parts between stations at speed without bounce.
Twin-load press with soft stop
Rod ends on both covers each carry a light pressing or marking tool, and the adjustable cushion at each end gives a smooth, controlled finish on about 8 kg-class loads.
Rear-switch slide
The fitted magnet and rear rod end support a CMSG, DMSG or EMSG switch and a stop flag, making the 225 mm stroke easy to monitor and index in pick-and-place slides.
Is the Airtac MGCD Stainless Steel Mini Air Cylinder MGCD20X225S the Right Cylinder?
Choose the MGCD20X225S when you need equal force in both directions, anti-rotation capability and adjustable cushioning in a compact 20 mm bore: the through-rod gives a rear rod end for a stop flag, position indicator or a second load, while the variable air cushion tames high-speed stops. If 131.9 N per direction at 0.5 MPa is marginal, step up to MGCD25 or MGCD32; this is the smallest bore in the cushioned double-rod range. For a bumper-type double-rod cylinder without adjustable cushioning at this bore, look at the MGD; for a single rod with cushion, the MGC. Mount with the LB foot or FA flange and add I or Y rod knuckles for off-axis loads; CB and SDB are not offered. The -S magnet supports CMSG/DMSG/EMSG switches. At 225 mm the stroke is within the 300 mm standard limit for this bore, but keep side loads on the rod minimal at long strokes.
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 MGCD20X225S FAQ
Because it is a double-rod cylinder, force is equal in both directions: 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 bore is 20 mm with an M5x0.8 port and M8x1.25 male rod thread at both ends.
The variable air cushion at both ends is adjustable, so you can tune deceleration for smooth high-speed stops; it is not a fixed bumper pad and not a load lock, so use an external rod lock or pilot check valve to hold a load on air loss. The rod exits both covers, giving equal force both ways and a rear rod end for a flag or second load. The fitted magnet (S code) accepts CMSG, DMSG and EMSG switches. Compared with the MGD (double rod with bumper) and the MGC (single rod with cushion), the MGCD is the cushioned double-rod JIS option.
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