Airtac MF20-25 Stainless Steel Mini Cylinder MF20X115SCM
The AirTAC Airtac MF20-25 Stainless Steel Mini Cylinder MF20X115SCM is a genuine double acting JIS-standard round-body mini air cylinder with a Ø20mm bore and 115mm 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
- Stroke115 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 MF20X115SCM
Generating 157 N of push force at 0.5 MPa, this double-acting AirTAC MF20X115SCM mini cylinder features a JIS-standard round body that is physically shorter than a comparable ISO 6432 unit, saving valuable mounting length in tight fixtures. 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 built-in piston magnet (-S) for CMSG, DMSG or EMSG switches, it also features a CM round-end rear cover. The fixed TPU bumper pads and front-cover anti-impact pad soften stroke-end impacts without acting as an adjustable cushion. Plan for roughly 94 N of actual work at 0.5 MPa, which translates to lifting about 8 kg vertically with a 2:1 safety margin.
Airtac MF20-25 Stainless Steel Mini Cylinder MF20X115SCM Technical Specifications
| Model | Airtac MF20-25 Stainless Steel Mini Cylinder MF20X115SCM |
|---|---|
| Series | MF JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 115 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 MF20X115SCM
| MF | JIS-standard round-body mini cylinder (double-acting). |
|---|---|
| 20 | Bore size in mm. |
| ×115 | 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 MF20X115SCM Is Used
Small Part Ejection
Pushes lightweight plastic mouldings out of an injection press with 157 N at 0.5 MPa, using the 115 mm stroke to clear the tooling entirely.
Sorter Diverter
Actuates a diverter arm on a packaging line; the compact JIS body fits between conveyor rollers where longer ISO cylinders cannot.
Probe Positioning
Moves an electronic test probe into contact with a PCB, relying on the -S magnet and DMSG switch to confirm the 115 mm extension.
Is the Airtac MF20-25 Stainless Steel Mini Cylinder MF20X115SCM the Right Cylinder?
When sizing this 20 mm bore, step down if loads are light or up to the MF25 (245.3 N at 0.5 MPa) if you need more thrust. This SKU includes the -S magnet for position sensing and the CM round-end back cover for pivot mounting. Remember that a standard cylinder drifts if air pressure drops; use an external pilot check valve or rod lock to hold a vertical load securely. At a 115 mm stroke, keep the load guided to prevent rod bending and premature seal wear.
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 MF20X115SCM FAQ
At 0.5 MPa it pushes 157 N and pulls 131.9 N. At 0.7 MPa it pushes 219.8 N and pulls 184.7 N. The theoretical maximum is 32 kgf at 1.0 MPa. The air port is 1/8" and the male rod thread is M8x1.25.
No, the piston will drift. The fixed TPU bumper pads only decelerate the stroke end and do not act as a brake. For vertical loads, install an external rod lock or pilot check valve. The CM round-end cover and SUS304 barrel suit washdown-adjacent environments.
Authorized Export Seller
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.
Fast Reply
Most inquiries answered within 7-8 hours.
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