Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X135SU
The AirTAC Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X135SU is a genuine double acting + cushion JIS-standard round-body mini air cylinder with a Ø20mm bore and 135mm 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
- Stroke135 mm
- Port size1/8"
- Acting typeDouble acting + cushion
- Rod threadM8×1.25
- CushionVariable air cushion, both ends
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X135SU
Designed with a needle-set variable air cushion at both ends, the AirTAC MFC20X135SU smooths high-speed strokes to protect payloads and cut noise. This JIS-standard round-body mini cylinder relies on a SUS304 stainless barrel and riveted aluminium covers to resist mild washdown, and for the same 20 mm bore and 135 mm stroke it mounts shorter than an ISO 6432 unit. A built-in piston magnet (-S) supports CMSG, DMSG and EMSG switches.
At 0.5 MPa the 20 mm bore pushes 157 N and pulls 131.9 N, yielding a computed safe working load of roughly 94 N or a 2:1 vertical lift of about 8 kg. The 1/8" port and M8x1.25 male rod thread keep the pneumatic footprint compact. Because the cushion only decelerates near stroke end, the piston will drift on air loss—add an external rod lock or pilot check valve if you must hold a load.
Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X135SU Technical Specifications
| Model | Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X135SU |
|---|---|
| Series | MFC JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 135 mm |
| Acting type | Double acting + 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 500 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 | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 132 N |
| 0.7 MPa | 220 N | 185 N |
| Max (@1.0 MPa) | 32 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X135SU
| MFC | JIS-standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×135 | 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 MFC Cushioned Stainless Steel Mini Cylinder MFC20X135SU Is Used
Light-Part Ejection
Uses the 157 N push force to eject small moulded parts rapidly; the variable air cushion prevents the piston from slamming at the end of the 135 mm travel.
Carton Flap Folding
Folds light cardboard flaps on a packaging line where the 8 kg vertical lift margin is ample, and the needle-set cushion protects the SUS304 body from repetitive shock.
Small Component Sorting
Diverts lightweight electronics down a conveyor; the built-in magnet works with DMSG sensors to confirm stroke end while the cushion softens fast reversals.
Is the Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X135SU the Right Cylinder?
If 157 N push at 0.5 MPa is insufficient, step up to the MFC25 (245.3 N); since 20 mm is the smallest MFC bore, there is no smaller option. Choose this variable-cushion model over a fixed bumper when cycling at high speed or moving delicate masses that cannot tolerate end-of-stroke shock. The U flat-end back cover suits flush mounting, and the -S magnet enables position sensing. Remember the cushion is a decelerator, not a brake—specify a pilot-operated check valve for load holding.
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 MFC Cushioned Stainless Steel Mini Cylinder MFC20X135SU FAQ
The 20 mm bore has an 8 mm rod, a 1/8" port and an M8x1.25 male rod thread. It pushes 157 N and pulls 131.9 N at 0.5 MPa, pushes 219.8 N and pulls 184.7 N at 0.7 MPa, and has a theoretical maximum force of 32 kgf at 1.0 MPa.
No. The variable air cushion only decelerates the piston near the stroke end; it is not a brake. On air loss the piston will drift, so you should fit an external rod lock or pilot check valve to hold a suspended load.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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