Airtac MGCD Stainless Steel Mini Air Cylinder MGCD20X50
The AirTAC Airtac MGCD Stainless Steel Mini Air Cylinder MGCD20X50 is a genuine double acting, double rod + cushion JIS-standard round-body mini air cylinder with a Ø20mm bore and 50mm 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
- Stroke50 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 MGCD20X50
The AirTAC MGCD20X50 is a JIS-standard round-body mini cylinder, double acting, with a double rod and a variable air cushion at both ends. Because a rod exits both covers and both sides of the piston see 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. The adjustable air cushion decelerates the piston smoothly at each end of the 50 mm stroke, so this compact 20 mm bore cylinder can run at higher speeds or carry heavier loads without hard metal-to-metal stops, while the rear rod end doubles as a mounting point for a stop, flag or second load.
Construction follows the JIS mini-cylinder footprint with a riveted SUS304 stainless barrel and hard-chrome plated 8 mm rods (male M8x1.25 thread at both ends), and the two-way lubricant-storing piston seal reduces maintenance. Air supply is filtered to 40 um, operating pressure is 0.15-1.0 MPa (22-145 psi) with a proof pressure of 1.5 MPa (215 psi), temperature range is -20 to +70 C, and speed range is 30-800 mm/s. Ports are M5x0.8. As a realistic working load, take about 0.6 of the 131.9 N push force, which gives roughly 8 kg horizontally, or about 6 kg if the cylinder is mounted vertically. Note that the cushion only decelerates the stroke ends; 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 MGCD20X50 Technical Specifications
| Model | Airtac MGCD Stainless Steel Mini Air Cylinder MGCD20X50 |
|---|---|
| Series | MGCD JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 50 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 MGCD20X50
| MGCD | JIS round-body mini cylinder (double-rod, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×50 | 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 MGCD20X50 Is Used
High-speed anti-rotation transfer
The through-rod resists load rotation while the variable air cushion gives smooth stops at both ends of the 50 mm stroke, ideal for small pick-and-place slides moving parts of a few kilograms at speed.
Twin-load press with soft stop
Rod ends on both covers let you press or clamp two light workpieces at once with about 131.9 N each way at 0.5 MPa, and the adjustable cushion prevents shock at the bottom of the stroke.
Rear-switch positioning slide
Use the rear rod end to carry a cam or flag past a CMSG, DMSG or EMSG sensor (order the -S magnet option) for end-of-stroke confirmation on compact indexing fixtures.
Is the Airtac MGCD Stainless Steel Mini Air Cylinder MGCD20X50 the Right Cylinder?
Size the MGCD20X50 for applications needing roughly 130 N (about 13 kgf) of equal force in both directions at 0.5 MPa; step up to MGCD25 or MGCD32 for more force, or down is not possible since bore 20 is the smallest in the range. Choose this cushioned double-rod type when you need smooth, adjustable deceleration at both stroke ends plus a through-rod for anti-rotation guidance or a rear stop or flag; for a bumper-pad double-rod cylinder without adjustable cushioning in this size class, look at the MGD, and for a single rod with cushion, the MGC. The maximum standard stroke for bore 20 is 300 mm, so 50 mm is comfortably within range. Mounting options are FA flange or LB foot, with I and Y rod knuckles available (no CB or SDB). Order the -S suffix if you plan to fit CMSG, DMSG or EMSG magnetic sensors; without the magnet no sensor can be mounted. For long strokes, support the load externally to limit side loading on the 8 mm rods.
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 MGCD20X50 FAQ
Because it is a double-rod cylinder, 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 is 1.5 MPa (215 psi), temperature range is -20 to +70 C, speed range is 30-800 mm/s, and the air must be filtered to 40 um. Ports are M5x0.8 and the rods are 8 mm with M8x1.25 male threads.
The MGCD20X50 has an adjustable air cushion at both ends that decelerates the piston near each stroke end, allowing higher speeds and heavier loads without hard stops; it is not a brake and will not hold the load on air loss, so add an external rod lock or pilot check valve for that. Unlike the MGD, which uses fixed bumper pads, the MGCD cushion is adjustable, and unlike the single-rod MGC it has a rod at both covers, giving equal force both ways and anti-rotation. The -S option adds a magnet for CMSG, DMSG or EMSG sensors.
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