Airtac MFCD Double Rod Cushioned Mini Cylinder MFCD20X20S
The AirTAC Airtac MFCD Double Rod Cushioned Mini Cylinder MFCD20X20S is a genuine double acting, double rod + cushion JIS-standard round-body mini air cylinder with a Ø20mm bore and 20mm stroke, 1/8" air ports and a SUS304 stainless-steel barrel for mildly corrosive environments. For the same bore and stroke it is shorter than an ISO 6432 cylinder, saving mounting space.
- BoreØ20 mm
- Stroke20 mm
- Port size1/8"
- Acting typeDouble acting, double rod + cushion
- Rod threadM8×1.25
- CushionVariable air cushion, both ends
About the Airtac MFCD Double Rod Cushioned Mini Cylinder MFCD20X20S
Twin rods exit both covers on this JIS-standard round-body mini cylinder, delivering equal 131.9 N thrust at 0.5 MPa in both directions while steadying the load against rotation. The SUS304 stainless barrel and riveted aluminium covers form a compact body that is shorter than an ISO 6432 unit for the same 20 mm bore and 20 mm stroke, saving valuable mounting length. A needle-set variable air cushion at each end soaks up end-of-stroke shock at high speed, and the built-in magnet (-S) supports CMSG, DMSG or EMSG switches.
With a 1/8 inch port and an M8x1.25 male rod thread, it runs at 30-800 mm/s. Based on the 0.5 MPa figure, expect a safe working load of roughly 79 N, or a vertical lift of about 6.7 kg with a 2:1 margin. The cushion only decelerates the piston near stroke end; it is not a lock, so add an external rod lock or pilot check valve if you must hold a load on air loss.
Airtac MFCD Double Rod Cushioned Mini Cylinder MFCD20X20S Technical Specifications
| Model | Airtac MFCD Double Rod Cushioned Mini Cylinder MFCD20X20S |
|---|---|
| Series | MFCD JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 20 mm |
| Acting type | Double acting, double rod + cushion |
| Port size | 1/8" |
| 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 MF/MFC (JIS-standard) datasheet. Barrel: SUS304 stainless steel; covers: aluminum alloy (round-body, riveted rolling-packed construction). 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 MFCD Double Rod Cushioned Mini Cylinder MFCD20X20S
| MFCD | JIS-standard round-body mini cylinder (double-rod, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×20 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSG / DMSG / EMSG sensors. |
MF-family variants: MF / MFC (double acting ±cushion), MSF / MTF (single acting push / pull), MFD / MFCD (double rod ±cushion), MFJ / MFCJ (adjustable stroke ±cushion). Back covers CA / U / CM. Mounting LB / FA / SDB / TC.
Where the Airtac MFCD Double Rod Cushioned Mini Cylinder MFCD20X20S Is Used
Twin-Tool Transfer
Drives a compact 20 mm stroke shuttle carrying two tools on opposite rods, using the 131.9 N force to push and pull light billets at high speed without rotation.
Sensor-Ready Stopper
Uses the -S magnet with a DMSG switch to confirm a 20 mm end position, while the needle cushion decelerates the 8 mm twin rods smoothly to prevent impact bounce.
Short-Stroke Diverter
Fits into tight machine frames thanks to the shorter-than-ISO-6432 body, deflecting small items with equal force both ways on a washdown-resistant SUS304 barrel.
Is the Airtac MFCD Double Rod Cushioned Mini Cylinder MFCD20X20S the Right Cylinder?
Choose this MFCD20 version for lighter duties requiring 131.9 N both ways at 0.5 MPa. If your application needs more push or pull, step up to the MFCD25, which raises the both-ways force to 206.1 N at 0.5 MPa. Only bores 20 and 25 exist in this series. The twin rods and adjustable cushions suit high-speed, shock-sensitive setups where anti-rotation matters.
Mounting options include LB foot, FA flange and TC trunnion (no SDB or back-cover code, since a rod exits both ends). Because this SKU carries the -S magnet, you can fit CMSG, DMSG or EMSG sensors directly. Remember that the cylinder drifts on air loss, so plan an external holding valve for suspended loads.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G / NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Back cover (CA/U/CM) & mount (LB/FA/SDB/TC)
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 Use correct back cover (CA/U/CM) & mount (LB/FA/SDB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac MFCD Double Rod Cushioned Mini Cylinder MFCD20X20S FAQ
Force is equal both ways because rods exit both covers. It delivers 131.9 N at 0.5 MPa, 184.7 N at 0.7 MPa, and a theoretical max of 26.9 kgf at 1.0 MPa. The bore is 20 mm with a 1/8 inch port.
No. The variable air cushions at both ends only decelerate the piston near the stroke end to absorb high-speed shock; they do not act as a brake or lock. The -S magnet allows CMSG, DMSG or EMSG sensors for position feedback, but you need an external rod lock or pilot check valve to hold a load on air loss.
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