Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X350U
The AirTAC Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X350U is a genuine double acting + cushion JIS-standard round-body mini air cylinder with a Ø20mm bore and 350mm 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
- Stroke350 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 MFC20X350U
Delivering 157 N of push force at 0.5 MPa, this double-acting JIS-standard round-body mini cylinder handles a 350 mm stroke with a 1/8" port. The riveted aluminium covers and SUS304 stainless barrel resist mild corrosion and washdown environments. For the same bore and stroke, the MFC body is shorter than an ISO 6432 cylinder, saving valuable mounting length.
A defining feature is the variable air cushion at both ends: a needle valve lets you tune the deceleration to absorb high-speed shock, protecting the load and cutting noise. Based on the 0.5 MPa push rating, it handles a safe working load of roughly 94 N, lifting about 8 kg vertically with a 2:1 margin. This U-cover variant features a flat rear end, and because it lacks the -S magnet, it cannot accept CMSG, DMSG or EMG sensors.
Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X350U Technical Specifications
| Model | Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X350U |
|---|---|
| Series | MFC JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 350 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 MFC20X350U
| MFC | JIS-standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×350 | 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 MFC20X350U Is Used
Light Package Diverting
Uses the 350 mm stroke to push small cartons off a high-speed belt, relying on the tuned air cushion to stop the 8 kg load gently without bounce.
Small Part Ejection
Ejects machined components from a fixture at speed; the SUS304 barrel handles light coolant splash while the needle valve damps the end impact.
Bin Gate Actuation
Opens and closes light hopper flaps where the 94 N safe working load is sufficient, using the U flat-end cover for flush rear mounting.
Is the Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X350U the Right Cylinder?
If 157 N at 0.5 MPa is insufficient, step up to the MFC25, which provides 245.3 N of push force; no smaller MFC bore exists below 20 mm. The adjustable cushion is essential when cycling at high speeds or moving heavier masses, as it prevents harsh end-of-stroke impacts. Note that the cushion only decelerates the piston near the stroke end—it is not a lock or brake. If your application must hold a load vertically during air loss or valve centering, fit an external rod lock or pilot-operated check valve, as the piston will drift. For mounting, choose from LB foot, FA flange, SDB pivot, or TC trunnion brackets.
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 MFC20X350U FAQ
This 20 mm bore cylinder has a 1/8" port and an 8 mm rod with an M8x1.25 male thread. It generates 157 N push and 131.9 N pull at 0.5 MPa, 219.8 N push and 184.7 N pull at 0.7 MPa, with a theoretical maximum of 32 kgf at 1.0 MPa.
No, this specific SKU does not include a magnet, so it cannot accept CMSG, DMSG or EMG switches. You would need the -S variant for sensing. The cylinder features a SUS304 stainless barrel and a variable air cushion at both ends to absorb shock.
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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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