Airtac MF20-25 Stainless Steel Mini Cylinder MF20X100SCM
The AirTAC Airtac MF20-25 Stainless Steel Mini Cylinder MF20X100SCM is a genuine double acting JIS-standard round-body mini air cylinder with a Ø20mm bore and 100mm 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
- Stroke100 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionFixed TPU bumper pads
About the Airtac MF20-25 Stainless Steel Mini Cylinder MF20X100SCM
Generating about 157 N of push force at 0.5 MPa, this double-acting 20 mm bore mini cylinder tackles light-duty positioning with a 100 mm stroke. Because the JIS-standard round body is physically shorter than a comparable ISO 6432 unit, it saves valuable mounting length in tight fixtures. The SUS304 stainless steel barrel and riveted aluminium covers resist mild corrosion and washdown, while the internal two-way seal retains an oil film for long service life.
Equipped with a built-in magnet (-S) and a round-end CM back cover, the unit accepts CMSG, DMSG or EMSG reed and electronic switches for position sensing. Fixed TPU bumper pads and a front-cover anti-impact pad soften the end-of-stroke impact. For real-world sizing, plan for roughly 94 N of actual work at 0.5 MPa, which means it can safely lift an 8 kg vertical load with a 2:1 safety margin.
Airtac MF20-25 Stainless Steel Mini Cylinder MF20X100SCM Technical Specifications
| Model | Airtac MF20-25 Stainless Steel Mini Cylinder MF20X100SCM |
|---|---|
| Series | MF JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 100 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 MF20X100SCM
| MF | JIS-standard round-body mini cylinder (double-acting). |
|---|---|
| 20 | Bore size in mm. |
| ×100 | 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 MF20X100SCM Is Used
Electronic Component Testing
Applies the 94 N safe working force to press connectors onto PCBs within dense test fixtures where the short JIS body saves critical mounting length.
Small Package Diversion
Uses the 100 mm stroke and 8 mm rod to push lightweight parcels on a sorting line, relying on the CMSG sensor and round-end CM cover for pivot mounting.
Parts Ejection
Ejects small moulded plastic parts from a press, absorbing the stroke-end impact via fixed TPU pads while the SUS304 barrel withstands occasional washdown.
Is the Airtac MF20-25 Stainless Steel Mini Cylinder MF20X100SCM the Right Cylinder?
When sizing this 20 mm bore, verify your actual load against the 94 N safe working figure. If your application requires more thrust, stepping up to the MF25 bore provides 245.3 N of push at 0.5 MPa; as the smallest bore in the MF family, there is no smaller option. The 1/8" port and M8x1.25 male rod thread are fixed for this size.
Remember that a standard double-acting cylinder will drift and cannot hold a load if air pressure drops or the valve is centred. The fixed bumpers only decelerate the stroke end and do not act as a brake. For suspended or vertical loads that must remain in place during an air loss event, install an external pilot-operated check valve or a dedicated rod lock.
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 MF20X100SCM FAQ
This 20 mm bore cylinder features a 1/8" air port and an M8x1.25 male rod thread. The double-acting thrust is 157 N push and 131.9 N pull at 0.5 MPa, or 219.8 N push and 184.7 N pull at 0.7 MPa. The theoretical maximum force is 32 kgf at 1.0 MPa.
No. The MF20X100SCM uses fixed TPU bumper pads to decelerate the stroke end, not an adjustable air cushion (for adjustable cushioning, look at the MFC variant). It is a JIS-standard round-body cylinder that is simply shorter than an ISO 6432 unit for the same bore and stroke, but it does not conform to the ISO 6432 standard.
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