Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X125U
The AirTAC Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X125U is a genuine double acting + cushion JIS-standard round-body mini air cylinder with a Ø20mm bore and 125mm 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
- Stroke125 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 MFC20X125U
Soaking up high-speed end-of-stroke shock with an adjustable needle, the AirTAC MFC20X125U brings variable air cushioning to compact automation. This double-acting JIS-standard round-body mini cylinder pairs a SUS304 stainless steel barrel with riveted aluminium covers for reliable mild-corrosion resistance. Featuring a 20mm bore, 125mm stroke, and a flat-end U rear cover, it is purposefully shorter than an ISO 6432 cylinder of the same size, saving valuable mounting length.
Generating 157N of push force at 0.5MPa, this 1/8-inch ported unit handles precise motion tasks. A practical computed insight: it yields a safe working load of roughly 94N, or lifts about 8kg vertically with a 2:1 margin. Note this specific SKU lacks a magnet, so it cannot host CMSG/DMSG/EMSG sensors; the -S variant is required for position detection.
Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X125U Technical Specifications
| Model | Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X125U |
|---|---|
| Series | MFC JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 125 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 MFC20X125U
| MFC | JIS-standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×125 | 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 MFC20X125U Is Used
Package Diverting
Ideal for routing small parcels at high speed on a conveyor, using the adjustable air cushion to silently halt the 125mm stroke without jarring the goods.
Small Component Pressing
Delivers a safe 94N working load for seating delicate electronic connectors or pins, where the riveted stainless build withstands light factory washdown.
Shuttle Transfer
Moves light tooling trays horizontally between stations; the flat-end U rear cover provides a clean, low-profile mounting face for tight cell layouts.
Is the Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X125U the Right Cylinder?
When sizing this 20mm bore unit, consider stepping up to the MFC25X125U if your payload exceeds the 245.3N push force available at 0.5MPa from the next larger bore. Downward sizing is not an option as 20mm is the smallest available MFC diameter. The variable air cushion is essential for high-speed strokes carrying delicate loads, allowing you to dial in deceleration to prevent impact damage.
Remember that the cushion only decelerates the piston near the stroke end and acts purely as a shock absorber, never as a lock or brake. If your application must hold a vertical load during a sudden air loss or when a valve is centered, you must add an external rod lock or a pilot-operated check valve to prevent drift. Mounting options include LB foot, FA flange, SDB pivot, and 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 MFC20X125U FAQ
This double-acting cylinder has a 20mm bore, an 8mm rod, and a 1/8" port. It generates 157N push and 131.9N pull at 0.5MPa, 219.8N push and 184.7N pull at 0.7MPa, with a theoretical maximum of 32kgf at 1.0MPa. It features a variable air cushion at both ends, operates at 30-800mm/s, and carries a flat-end U back cover.
No, this specific SKU does not include a magnet, so it cannot accept CMSG, DMSG, or EMSG switches. You would need to select the MFC20X125U-S variant to enable position sensing. Additionally, the integrated air cushion only decelerates the piston near stroke end to reduce shock; it does not function as a brake to hold a load on air loss.
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Genuine AirTAC parts produced by AirTAC factory.
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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