Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X400SCMLB
The AirTAC Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X400SCMLB is a genuine double acting + cushion JIS-standard round-body mini air cylinder with a Ø20mm bore and 400mm 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
- Stroke400 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 MFC20X400SCMLB
Delivering 157 N of push force at 0.5 MPa, this double-acting 20 mm bore mini cylinder handles long 400 mm strokes with precision. The riveted SUS304 stainless barrel and aluminium covers resist mild corrosion and washdown environments. For the same bore and stroke, the JIS-standard round body is noticeably 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. The -S suffix adds a piston magnet for CMSG, DMSG or EMSG switches. With a safe working load around 94 N (about 60% of the 0.5 MPa push force), it lifts roughly 8 kg vertically with a 2:1 safety margin. The 1/8 inch port and M8x1.25 male rod thread complete the pneumatic interface.
Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X400SCMLB Technical Specifications
| Model | Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X400SCMLB |
|---|---|
| Series | MFC JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 400 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 MFC20X400SCMLB
| MFC | JIS-standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×400 | 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 MFC20X400SCMLB Is Used
Package Diverting
Pushes light cartons across a transfer at high speed, relying on the tuned air cushion to stop the 400 mm travel smoothly without jarring the conveyor frame.
Small Component Ejection
Ejects machined plastic parts from a fixture; the 94 N safe working load easily clears the debris while the SUS304 barrel withstands coolant spray.
Vertical Tray Lifting
Raises lightweight stacking trays in a packaging cell, lifting about 8 kg safely with a 2:1 margin while the position is confirmed by a DMSG sensor.
Is the Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X400SCMLB the Right Cylinder?
When sizing this 20 mm bore actuator, step down if the load is light or step up to the MFC25 if you need more thrust (245.3 N push at 0.5 MPa). The adjustable air cushion is essential here: a 400 mm stroke builds significant piston velocity, so tuning the end-of-stroke deceleration prevents harsh impacts that a fixed bumper cannot absorb.
Remember that the cushion only decelerates the piston near the stroke end; it does not act as a brake or lock. If your application must hold a vertical load during air loss, fit an external rod lock or pilot-operated check valve. This specific SKU includes the LB foot mounting accessory and a CM round-end rear cover for versatile installation.
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 MFC20X400SCMLB FAQ
This 20 mm bore cylinder has a 1/8 inch port and generates 157 N push / 131.9 N pull at 0.5 MPa, and 219.8 N push / 184.7 N pull at 0.7 MPa. The theoretical maximum force is 32 kgf at 1.0 MPa.
No. The variable air cushion only decelerates the piston near the end of the stroke to reduce shock; it is not a brake or lock. The piston will drift on air loss. Use an external rod lock or pilot check valve for load holding. The -S magnet allows CMSG, DMSG and EMSG sensors for position feedback.
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1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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