Airtac MF20-25 Stainless Steel Mini Cylinder MF20X105SCM
The AirTAC Airtac MF20-25 Stainless Steel Mini Cylinder MF20X105SCM is a genuine double acting JIS-standard round-body mini air cylinder with a Ø20mm bore and 105mm 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
- Stroke105 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionFixed TPU bumper pads
About the Airtac MF20-25 Stainless Steel Mini Cylinder MF20X105SCM
Delivering 157 N of push force at 0.5 MPa, this double-acting stainless-steel mini cylinder packs pneumatic muscle into a compact JIS-standard footprint. Because the riveted rolling-packed SUS304 barrel and aluminium covers are inherently shorter than an ISO 6432 body of the same 20 mm bore and 105 mm stroke, it drops easily into space-constrained fixtures. The integrated piston magnet (-S) enables direct mounting of CMSG, DMSG or EMSG switches for precise end-of-stroke detection.
The CM round-end back cover simplifies rear pivot mounting, while the 1/8" port feeds air to extend and retract the 8 mm rod. Fixed TPU bumper pads and a front-cover anti-impact pad absorb stroke-end shock. 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 MF20X105SCM Technical Specifications
| Model | Airtac MF20-25 Stainless Steel Mini Cylinder MF20X105SCM |
|---|---|
| Series | MF JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 105 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 MF20X105SCM
| MF | JIS-standard round-body mini cylinder (double-acting). |
|---|---|
| 20 | Bore size in mm. |
| ×105 | 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 MF20X105SCM Is Used
PCB Depaneling Gate
Cycles a routing blade gate on an electronics depaneling router, using the built-in magnet to confirm the 105 mm open position before the spindle advances.
Carton Flap Folder
Folds secondary corrugated flaps on a small-case packing line, where the compact JIS body saves valuable conveyor clearance and the CM rear pivot absorbs misalignment.
Plastic Mould Eject
Triggers an auxiliary stripper plate on a low-force injection mould to eject lightweight plastic clips, relying on the oil-retaining two-way seal for continuous rapid cycles.
Is the Airtac MF20-25 Stainless Steel Mini Cylinder MF20X105SCM the Right Cylinder?
When sizing this 20 mm bore unit, verify your payload against the 94 N safe working threshold. If your assembly requires less push, note there is no smaller MF bore, so a shorter stroke or lower pressure is your only reduction path. Stepping up to the MF25 increases the 0.5 MPa push force significantly to 245.3 N. For this 105 mm stroke, keep the load guided to prevent rod bending and side-load wear.
Because the standard bumper pads only decelerate the piston and do not act as a brake, the rod will drift if air pressure drops or the valve is centred. To suspend a vertical load safely, fit an external pilot-operated check valve or a dedicated rod lock rather than relying on the cylinder alone.
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 MF20X105SCM FAQ
This 20 mm bore cylinder features a 1/8" air port and an M8x1.25 male rod thread. At 0.5 MPa it pushes with 157 N and pulls with 131.9 N. At 0.7 MPa the push is 219.8 N and the pull is 184.7 N. The theoretical maximum force is 32 kgf at 1.0 MPa.
It does not conform to ISO 6432, though its riveted SUS304 stainless body is deliberately shorter than an ISO 6432 cylinder of the same stroke, saving mounting length. The -S magnet allows CMSG, DMSG or EMSG switches, and you can mount it via LB foot, FA flange, SDB pivot or TC trunnion alongside the CM round-end rear cover.
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