Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X40CMLB
The AirTAC Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X40CMLB is a genuine double acting + cushion JIS-standard round-body mini air cylinder with a Ø20mm bore and 40mm 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
- Stroke40 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 MFC20X40CMLB
Equipped with a needle-set variable air cushion at both ends, the AirTAC MFC20X40CMLB is a JIS-standard round-body mini cylinder built to absorb high-speed end-of-stroke shock. The SUS304 stainless barrel and riveted aluminium covers resist mild corrosion and washdown, while the CM round-end rear cover and LB foot mounting streamline installation. As a double-acting unit, it pushes with 157 N and pulls with 131.9 N at 0.5 MPa.
For the same bore and stroke, this 20 mm bore design is notably shorter than an ISO 6432 cylinder, saving valuable machine space without sacrificing performance. It provides a safe working load of about 94 N, meaning it can vertically lift roughly 8 kg with a 2:1 safety margin. Note that this specific SKU lacks a magnet, so it cannot accept CMSG, DMSG, or EMG position sensors without switching to an -S variant.
Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X40CMLB Technical Specifications
| Model | Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X40CMLB |
|---|---|
| Series | MFC JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 40 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 MFC20X40CMLB
| MFC | JIS-standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×40 | 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 MFC20X40CMLB Is Used
Light-Duty Part Ejection
Uses the 157 N push force at 0.5 MPa to eject small moulded components, relying on the variable air cushion to silently decelerate the 40 mm stroke at high speed.
Carton Flap Folding
Folds light packaging flaps on a conveyor where the compact JIS body saves space, while the LB foot mount secures the cylinder firmly to the frame.
Small Component Sorting
Pushes lightweight plastic parts down a chute, safely handling loads under the 8 kg vertical lift limit without needing a magnetic position sensor.
Is the Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X40CMLB the Right Cylinder?
When sizing this 20 mm bore actuator, compare its 157 N push force at 0.5 MPa against the next size up: the MFC25 delivers 245.3 N, offering a clear upgrade if your load exceeds the 94 N safe working threshold. If your application demands heavy end-of-stroke deceleration at high speeds, the variable air cushion is essential for protecting the payload and cutting noise. However, the cushion only decelerates the piston near the stroke end; it is not a brake.
Because this model features the LB foot bracket and a CM rear cover, ensure your frame accommodates this specific mounting geometry. Furthermore, since this SKU is non-magnetic, it cannot host CMSG or DMSG switches. If a power loss occurs or the valve centres, the piston will drift, so fit an external rod lock or pilot-operated check valve to hold suspended loads safely.
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 MFC20X40CMLB FAQ
This double-acting 20 mm bore cylinder uses a 1/8" air 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 EMSG switches. You would need the -S variant for sensing. The SUS304 stainless build resists mild corrosion, and the variable air cushion protects loads at high speeds.
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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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