Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X250SCMLB
The AirTAC Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X250SCMLB is a genuine double acting + cushion JIS-standard round-body mini air cylinder with a Ø20mm bore and 250mm 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
- Stroke250 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 MFC20X250SCMLB
Designed for high-speed actuation, this double-acting mini cylinder relies on a needle-set variable air cushion at both ends to decelerate the piston smoothly and eliminate end-of-stroke shock. The MFC20X250SCMLB delivers 157 N of push force at 0.5 MPa, making it well-suited for compact automation tasks. Its SUS304 stainless steel round body and riveted aluminium covers resist mild corrosion and washdown environments.
For the same 20 mm bore and 250 mm stroke, this JIS-standard unit is physically shorter than a comparable ISO 6432 cylinder, saving valuable mounting length. Based on the 0.5 MPa push rating, it handles a safe working load of roughly 94 N, or lifts about 8 kg vertically with a 2:1 safety margin. The -S suffix indicates a built-in piston magnet for position sensing.
Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X250SCMLB Technical Specifications
| Model | Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X250SCMLB |
|---|---|
| Series | MFC JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 250 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 MFC20X250SCMLB
| MFC | JIS-standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×250 | 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 MFC20X250SCMLB Is Used
Light Package Diverting
Pushes small cartons at high speed on a packing line; the adjustable air cushion prevents harsh impacts that could scuff packaging over a 250 mm travel.
Small Parts Ejection
Ejects lightweight plastic moulded components from a tool, using the 8 kg vertical lift capacity to clear the mould base reliably.
Bin Gate Actuation
Opens and closes small gravity-fed hopper gates for dry granular materials, where the SUS304 barrel withstands mildly humid ambient conditions.
Is the Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X250SCMLB the Right Cylinder?
When sizing this 20 mm bore model, step down if your load is lighter or step up to the MFC25, which provides 245.3 N of push force at 0.5 MPa. The variable air cushion is essential when operating at high speeds or moving heavy masses, as it absorbs kinetic energy that a fixed bumper cannot. Remember that the cushion only decelerates the piston near the stroke end; it does not function as a brake or lock.
If your application must hold position during an air loss or valve shift, the piston will drift, so you must add an external rod lock or pilot-operated check valve. This specific configuration includes the LB foot mounting bracket for secure base mounting and the CM round-end rear cover. Furthermore, the -S magnet allows you to install CMSG, DMSG, or EMSG switches for precise end-of-stroke detection.
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 MFC20X250SCMLB FAQ
This 20 mm bore cylinder features a 1/8" air port and an 8 mm piston rod. 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 force of 32 kgf at 1.0 MPa.
No, the piston will drift if air pressure is lost or the valve is centred. The variable air cushion only decelerates the piston near the end of the stroke and does not act as a locking mechanism. You must use an external rod lock or pilot check valve for load holding.
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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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