Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X40CM
The AirTAC Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X40CM 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 MFC20X40CM
Dial in end-of-stroke deceleration with the AirTAC MFC20X40CM, a JIS-standard round-body mini cylinder built for double-acting service. A variable air cushion at both ends lets you turn a needle to soak up high-speed shock, protecting the load and cutting noise versus a simple bumper. The riveted SUS304 stainless barrel and aluminium covers resist mild corrosion and washdown, while the CM round-end rear cover suits compact installations. For the same 20 mm bore and 40 mm stroke, this body is noticeably shorter than an ISO 6432 cylinder, saving valuable mounting length without conforming to that standard.
Generating 157 N of push and 131.9 N of pull at 0.5 MPa, this 1/8" ported unit handles brisk 30-800 mm/s cycles. In practical terms it yields a safe working load of about 94 N, or roughly 8 kg of vertical lift with a 2:1 margin. Note that this specific SKU lacks the -S magnet, so it cannot host CMSG, DMSG or EMSG sensors. If position detection is required, specify the -S variant instead.
Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X40CM Technical Specifications
| Model | Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X40CM |
|---|---|
| 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 MFC20X40CM
| 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 MFC20X40CM Is Used
Light-Part Ejection
Cushioned stroke ends protect delicate plastic mouldings from impact damage during rapid ejection at full speed.
Package Diverting
Provides snappy 40 mm actuation to push small cartons off a belt, using the needle valve to halt the rod smoothly without bounce.
Lab Sample Routing
The SUS304 barrel withstands routine wipe-downs in laboratory settings while moving sample trays with a 94 N safe working load.
Is the Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X40CM the Right Cylinder?
When sizing this 20 mm bore, step down if your load is very light, or move up to the MFC25 which provides 245.3 N of push at 0.5 MPa for heavier dynamics. The variable air cushion is essential here if you are cycling at high speed or moving a sensitive mass, as it allows you to tune the deceleration curve precisely. Remember that the cushion only slows the piston near the stroke end—it is not a lock or brake. If the application must hold a load vertically on air loss or valve centring, the piston will drift; fit an external rod lock or a pilot-operated check valve. Mounting options include LB foot, FA flange, SDB pivot and TC trunnion blocks to suit your frame.
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 MFC20X40CM FAQ
This 20 mm bore cylinder features a 1/8" port and an M8x1.25 male rod thread. At 0.5 MPa it delivers 157 N push and 131.9 N pull. At 0.7 MPa it yields 219.8 N push and 184.7 N pull. The theoretical maximum force is 32 kgf at 1.0 MPa.
No, this specific SKU does not include the -S magnet, so it cannot accept CMSG, DMSG or EMSG switches. You must select the -S variant for position sensing. The variable air cushion at both ends functions solely to decelerate the piston near stroke end and does not lock or hold the 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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