Airtac MF20-25 Stainless Steel Mini Cylinder MF20X105CM
The AirTAC Airtac MF20-25 Stainless Steel Mini Cylinder MF20X105CM 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
- 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 MF20X105CM
Generating 157 N of push force at 0.5 MPa, this double-acting AirTAC MF20X105CM mini cylinder features a JIS-standard round body that is physically shorter than a comparable ISO 6432 unit, saving valuable mounting length in compact assemblies. The SUS304 stainless steel barrel and riveted aluminium covers resist mild corrosion and washdown, while the piston's two-way seal retains an oil film for extended lifespan. A CM round-end back cover equips the rear for pivot mounting. Operating on a 1/8 inch air port, it provides a practical 105 mm stroke.
Because the fixed TPU bumper pads and front-cover anti-impact pad only soften stroke-end impact rather than act as an adjustable cushion, you should plan for a safe working load of about 94 N. This equates to lifting an 8 kg part vertically with a 2:1 safety margin. Note that this specific SKU lacks a magnet, meaning it cannot accept CMSG, DMSG, or EMSG position switches without upgrading to an -S variant.
Airtac MF20-25 Stainless Steel Mini Cylinder MF20X105CM Technical Specifications
| Model | Airtac MF20-25 Stainless Steel Mini Cylinder MF20X105CM |
|---|---|
| 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 MF20X105CM
| 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 MF20X105CM Is Used
Small Part Ejection
Pushes lightweight plastic mouldings out of an injection press using the 157 N thrust, relying on the 105 mm stroke to clear the tooling.
Fixture Actuation
Moves a secondary clamping jaw in a tight machining cell where the JIS compact body saves critical overall length.
Sorter Diverter
Diverts small electronic packages on a conveyor line, safely handling loads under the 8 kg vertical lift threshold.
Is the Airtac MF20-25 Stainless Steel Mini Cylinder MF20X105CM the Right Cylinder?
When sizing this 20 mm bore, consider the adjacent MF25 bore if your fixture requires more power, as it steps up to 245.3 N of push force at 0.5 MPa. If you are pushing the limits of the 105 mm stroke, be mindful of side loading to prevent rod bending. The CM round-end back cover suits pivot-style mounting, and you can pair the body with LB foot, FA flange, SDB pivot, or TC trunnion brackets. Remember that a standard double-acting cylinder drifts when air is lost or the valve is centred; the bumper pads decelerate the stroke but do not lock the rod. To hold a load securely, integrate 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 MF20X105CM FAQ
This 20 mm bore cylinder uses a 1/8 inch air port. It generates a push force of 157 N and a pull force of 131.9 N at 0.5 MPa. At 0.7 MPa, the push increases to 219.8 N and the pull to 184.7 N. The theoretical maximum force is 32 kgf at 1.0 MPa.
No, this specific SKU does not include a magnet, so it cannot accept CMSG, DMSG, or EMSG switches. You would need the -S variant for sensing. It features a CM round-end back cover and fixed TPU bumper pads that decelerate the stroke end without offering adjustable cushioning.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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