Airtac MGCD Stainless Steel Mini Air Cylinder MGCD20X500
The AirTAC Airtac MGCD Stainless Steel Mini Air Cylinder MGCD20X500 is a genuine double acting, double rod + cushion JIS-standard round-body mini air cylinder with a Ø20mm bore and 500mm 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
- Stroke500 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 MGCD20X500
The AirTAC MGCD20X500 is a double acting, double-rod JIS round-body mini cylinder with a 20 mm bore and a 500 mm stroke. A rod exits both covers with the same M8x1.25 male thread at each end, so the piston pushes on the rod-side area in both directions and delivers an equal force of about 131.9 N each way at 0.5 MPa (184.7 N at 0.7 MPa). Both ends carry a variable air cushion, an adjustable throttle that decelerates the piston smoothly before each stop, so this long 500 mm stroke can run at higher speeds without hard metal-to-metal impact. The rear rod end also gives you a second working point for a stop flag, cam, or light second load.
Construction follows the JIS mini-cylinder footprint: a riveted SUS304 stainless barrel with a hard-chrome plated 8 mm rod for corrosion resistance and long seal life, and a two-way lubricant-storing piston seal. It runs on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), proof tested to 1.5 MPa (215 psi), from -20 to +70 C, at 30-800 mm/s. With a 500 mm stroke this is a made-to-order length above the 300 mm standard maximum for bore 20. A practical working rule: keep the real load near 0.6 of the push force, so about 8 kgf horizontally, or roughly 4 kg as a safe vertical figure. Note that the cushion decelerates the stroke ends only; it is not a lock, so use an external rod lock or pilot check valve if the load must hold on air loss.
Airtac MGCD Stainless Steel Mini Air Cylinder MGCD20X500 Technical Specifications
| Model | Airtac MGCD Stainless Steel Mini Air Cylinder MGCD20X500 |
|---|---|
| Series | MGCD JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 500 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 MGCD20X500
| MGCD | JIS round-body mini cylinder (double-rod, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×500 | 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 MGCD20X500 Is Used
High-speed anti-rotation transfer
The through-rod keeps a small carrier from rotating over the full 500 mm travel while the variable air cushion at each end lets you run fast cycles without end-of-stroke bang, at this 131.9 N force class.
Twin-point light press with soft stop
Use both rod ends to press or seat two small workpieces at once; equal force both ways (about 131.9 N at 0.5 MPa) and adjustable cushioning give a gentle, repeatable finish.
Long-slide position flag
Fit a stop or cam flag to the rear rod end of this 500 mm slide to trigger a mechanism or marker, with the cushion smoothing both ends of the travel.
Is the Airtac MGCD Stainless Steel Mini Air Cylinder MGCD20X500 the Right Cylinder?
Size by force, not bore: at this 20 mm bore the MGCD20X500 gives 131.9 N each way at 0.5 MPa, the smallest output in the MGCD range (the largest is the 63 mm bore at 1400.9 N). If you need a double-rod cylinder without cushioning in this small bore class, look at the MGD (fixed bumper, 20-40 mm); if you want a single rod with a cushion, the MGC is the equivalent. Choose the MGCD when the through-rod matters: anti-rotation guidance for the load, a rear rod end for a position flag or second light load, and adjustable deceleration at both ends of a long, fast stroke. This 500 mm stroke exceeds the 300 mm standard maximum for bore 20, so it is a non-standard made-to-order length; keep side loads off the rod and use FA flange or LB foot mounting plus I or Y rod knuckles as needed. Add the S option (magnet) if you want CMSG, DMSG, or EMSG switch sensing; without it no sensor can be mounted. Ports are M5x0.8; thread options are PT (standard), G, or NPT.
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 MGCD20X500 FAQ
Because both sides of the piston see the rod-side area, the 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, on air filtered to 40 um. Keep the working load near 0.6 of the push force, about 8 kgf horizontally or roughly 4 kg vertically.
The MGCD has an adjustable air cushion at both ends: a metering throttle bleeds trapped air to decelerate the piston smoothly before each stop, so you can tune the braking to the speed and load. It is not a fixed bumper pad (that is the MGD) and not a lock, so an external rod lock or pilot check valve is needed to hold a load on air loss. Unlike the single-rod MGC, the MGCD is a double-rod cylinder with equal force both ways and a rear rod end for a flag or second load. Add the S option (magnet) to mount CMSG, DMSG, or EMSG switches.
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