Airtac MF20-25 Stainless Steel Mini Cylinder MF20X120CA
The AirTAC Airtac MF20-25 Stainless Steel Mini Cylinder MF20X120CA is a genuine double acting JIS-standard round-body mini air cylinder with a Ø20mm bore and 120mm 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
- Stroke120 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionFixed TPU bumper pads
- 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 MF20-25 Stainless Steel Mini Cylinder MF20X120CA
Generating 157 N of push force at 0.5 MPa, this double-acting JIS-standard round-body mini cylinder saves valuable mounting length because its overall body is physically shorter than a comparable ISO 6432 unit. The SUS304 stainless steel barrel and riveted aluminium covers resist mild corrosion, while the internal two-way seal retains an oil film for extended mechanical life.
Equipped with a rear CA pivot cover and a 1/8" port, the unit uses fixed TPU bumper pads to decelerate the stroke end. Plan for roughly 94 N of actual work at 0.5 MPa, which means you can vertically lift about 8 kg safely with a 2:1 margin. Note this specific SKU lacks a magnet, so it cannot accept CMSG, DMSG or EMSG position switches without upgrading to an -S variant.
Airtac MF20-25 Stainless Steel Mini Cylinder MF20X120CA Technical Specifications
| Model | Airtac MF20-25 Stainless Steel Mini Cylinder MF20X120CA |
|---|---|
| Series | MF JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 120 mm |
| Acting type | Double acting |
| 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 | Fixed TPU bumper pads |
| 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 MF20-25 Stainless Steel Mini Cylinder MF20X120CA
| MF | JIS-standard round-body mini cylinder (double-acting). |
|---|---|
| 20 | Bore size in mm. |
| ×120 | 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 MF20-25 Stainless Steel Mini Cylinder MF20X120CA Is Used
Pivot-Driven Part Ejection
Uses the CA rear pivot to swing small stamped electronics contacts out of a press die, relying on the 157 N push force to clear the tooling cleanly.
Carton Flap Folding
Extends 120 mm to tuck corrugated cardboard flaps on a packaging line, where the compact JIS body fits neatly between conveyor guide rails.
Lightweight Component Sorting
Pushes lightweight plastic caps into sorting chutes, benefiting from the oil-retaining two-way seal that ensures smooth continuous cycling.
Is the Airtac MF20-25 Stainless Steel Mini Cylinder MF20X120CA the Right Cylinder?
If 157 N at 0.5 MPa is insufficient, step up to the MF25 bore which provides 245.3 N; there is no smaller bore in the MF family. The 120 mm stroke is well within the 500 mm standard limit, though at this length you should minimize side loading to prevent rod bending. The CA pivot back cover is ideal for clevis mounting.
Because this is a base double-acting cylinder, the piston will drift if air pressure drops or the valve is centred. The TPU bumpers only soften the end of stroke and do not function as a brake. To suspend a load securely, install an external rod lock or a pilot-operated check valve.
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 MF20-25 Stainless Steel Mini Cylinder MF20X120CA FAQ
At 0.5 MPa it pushes with 157 N and pulls with 131.9 N. At 0.7 MPa it pushes 219.8 N and pulls 184.7 N. The theoretical maximum force is 32 kgf at 1.0 MPa. The air port size is 1/8".
No, this specific SKU does not have a magnet, so it cannot accept CMSG, DMSG or EMSG switches. You would need the -S magnet variant for sensing. The CA back cover allows pivot mounting, and the JIS-standard body is shorter than an ISO 6432 cylinder.
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