Airtac MGCD Stainless Steel Mini Air Cylinder MGCD20X25S
The AirTAC Airtac MGCD Stainless Steel Mini Air Cylinder MGCD20X25S is a genuine double acting, double rod + cushion JIS-standard round-body mini air cylinder with a Ø20mm bore and 25mm 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
- Stroke25 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 MGCD20X25S
The AirTAC MGCD20X25S is a double acting, double-rod JIS round-body mini cylinder with a 20 mm bore and 25 mm stroke. Because a rod exits both covers, the piston works on the rod-side area in each direction, so output is equal both ways: 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 deceleration for smooth, high-speed stops, while the rear rod end doubles as a mounting point for a stop, flag, or second load. The fitted magnet (S code) allows CMSG, DMSG, or EMSG switches to be mounted directly on the barrel.
Construction follows the JIS mini-cylinder footprint with a riveted SUS304 stainless barrel and hard-chrome plated 8 mm rods threaded M8x1.25 at each end; air ports are M5x0.8. It runs on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), withstands a proof pressure of 1.5 MPa (215 psi), operates from -20 to +70 C, and covers speeds of 30-800 mm/s. As a sizing rule of thumb, plan on roughly 8 kg of usable vertical load, taking about 60 percent of the 131.9 N push force at 0.5 MPa.
Airtac MGCD Stainless Steel Mini Air Cylinder MGCD20X25S Technical Specifications
| Model | Airtac MGCD Stainless Steel Mini Air Cylinder MGCD20X25S |
|---|---|
| Series | MGCD JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 25 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 MGCD20X25S
| MGCD | JIS round-body mini cylinder (double-rod, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×25 | 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 MGCD20X25S Is Used
High-speed anti-rotation transfer
The through-rod resists rotation while the variable air cushion tames the stop, letting this 131.9 N cylinder cycle small parts between stations at up to 800 mm/s without bounce.
Twin-load light press with soft stop
Rod ends on both covers carry two small pressing or marking loads, and the adjustable cushion at each end gives a smooth, controlled landing on delicate workpieces.
Rear-switch slide with position feedback
The rear rod end drives a cam flag past CMSG, DMSG, or EMSG switches on the magnet-fitted barrel, confirming end positions on a short 25 mm stroke slide.
Is the Airtac MGCD Stainless Steel Mini Air Cylinder MGCD20X25S the Right Cylinder?
Choose the MGCD20X25S when you need the smallest cushioned double-rod cylinder in the MG family: 20 mm bore, 25 mm stroke, and equal force in both directions with adjustable end-of-stroke deceleration. If your bore-20 application needs a double rod but only a fixed bumper, step down to the MGD; if a single rod plus cushion is enough, the MGC offers the same JIS footprint. For more force, move up through the MGCD range to bore 63. Mount with the LB foot or FA flange and add I or Y rod knuckles on the rod ends; SDB and CB are not offered. The fitted magnet supports CMSG, DMSG, and EMSG switches. Keep side loads low on long strokes and guide external masses separately.
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 MGCD20X25S FAQ
With a 20 mm bore and double rod, output 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 is 30-800 mm/s, and the medium is air filtered to 40 um. Ports are M5x0.8 and rod threads are M8x1.25.
The variable air cushion at both ends is adjusted with needle valves to decelerate the piston smoothly at each stroke end; it is not a lock, so use an external rod lock or pilot check valve if you need the load held on air loss. Because a rod exits both covers, force is identical both ways and the rear rod can carry a stop, flag, or second load. The fitted magnet (S code) accepts CMSG, DMSG, or EMSG switches. Unlike the MGD, which uses fixed bumpers, the MGCD has adjustable air cushions.
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