Airtac MF20-25 Stainless Steel Mini Cylinder MF20X110SU
The AirTAC Airtac MF20-25 Stainless Steel Mini Cylinder MF20X110SU is a genuine double acting JIS-standard round-body mini air cylinder with a Ø20mm bore and 110mm 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
- Stroke110 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionFixed TPU bumper pads
About the Airtac MF20-25 Stainless Steel Mini Cylinder MF20X110SU
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 piston's two-way seal retains an oil film for extended lifespan. Equipped with a U flat-end back cover, it uses fixed TPU bumper pads to soften stroke-end impact.
Featuring an 8 mm rod and a 1/8" port, the MF20X110SU includes a built-in magnet for position sensing. Plan for a real work load of about 94 N, which is roughly 60 percent of the 0.5 MPa push rating. For vertical lifting tasks, it handles approximately 8 kg safely when applying a 2:1 margin against the 131.9 N pull force.
Airtac MF20-25 Stainless Steel Mini Cylinder MF20X110SU Technical Specifications
| Model | Airtac MF20-25 Stainless Steel Mini Cylinder MF20X110SU |
|---|---|
| Series | MF JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 110 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 MF20X110SU
| MF | JIS-standard round-body mini cylinder (double-acting). |
|---|---|
| 20 | Bore size in mm. |
| ×110 | 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 MF20X110SU Is Used
Small Part Ejection
Uses the 157 N push force at 0.5 MPa to knock lightweight plastic moulded components out of a machining fixture on an assembly line.
Package Diverting
Extends 110 mm to push small cardboard cartons from a main conveyor belt onto a secondary packaging track without taking up excessive frame length.
Clamp Actuation
Secures thin sheet metal during a light stamping operation, relying on the 94 N safe working load to hold the part firmly in place.
Is the Airtac MF20-25 Stainless Steel Mini Cylinder MF20X110SU the Right Cylinder?
When sizing this 20 mm bore, stepping up to the MF25 increases your 0.5 MPa push force to 245.3 N for heavier demands, while the 20 mm remains the smallest available MF option. Because the 110 mm stroke is relatively long for this compact class, carefully manage side loads to prevent rod bending and premature seal wear. The fixed TPU bumpers only decelerate the piston near the stroke end; they do not function as a lock. If your application must hold a load vertically during air loss or valve centering, the piston will drift, so you must add an external rod lock or a pilot-operated check valve.
The included -S magnet enables direct mounting of CMSG, DMSG, or EMSG reed and electronic switches for precise end-of-stroke detection. You can pair the U flat-end rear cover with LB foot, FA flange, SDB pivot, or TC trunnion mounts to fit your specific machinery envelope.
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 MF20X110SU FAQ
This 20 mm bore cylinder features a 1/8" 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, increasing to 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 piston will drift if air is lost or the valve is centered, as the fixed TPU bumper pads only decelerate the stroke end and do not act as a brake. For vertical loads, you must install an external rod lock or pilot check valve. The -S magnet allows CMSG, DMSG, or EMSG sensors to track position.
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