Airtac MF20-25 Stainless Steel Mini Cylinder MF20X100SUTC
The AirTAC Airtac MF20-25 Stainless Steel Mini Cylinder MF20X100SUTC 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 MF20X100SUTC
Delivering 157 N of push force at 0.5 MPa, this double-acting JIS-standard round-body mini cylinder uses a SUS304 stainless barrel with riveted aluminium covers to resist mild washdown. Because the MF body is physically shorter than an ISO 6432 cylinder for the same 20 mm bore and 100 mm stroke, it shrinks your overall fixture length. The internal piston relies on a two-way oil-retaining seal for long life, while fixed TPU bumper pads and a front-cover anti-impact pad soften the stroke end.
Equipped with a built-in magnet (-S), this unit supports CMSG, DMSG, and EMSG reed or electronic switches for position sensing. Plan for roughly 94 N of actual work at 0.5 MPa, which means you can vertically lift about 8 kg safely with a 2:1 margin. The 1/8" port and M8x1.25 male rod thread keep pneumatic plumbing compact, and the U flat-end back cover mates directly with the included TC trunnion bracket.
Airtac MF20-25 Stainless Steel Mini Cylinder MF20X100SUTC Technical Specifications
| Model | Airtac MF20-25 Stainless Steel Mini Cylinder MF20X100SUTC |
|---|---|
| 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 MF20X100SUTC
| 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 MF20X100SUTC Is Used
Small Part Ejection
Uses the 8 kg vertical lift capacity to push lightweight plastic mouldings out of an injection press fixture.
Package Diverting
Deploys the 100 mm stroke to actuate a routing flap on a compact packaging line where space is tight.
Lab Sample Handling
Leverages the SUS304 stainless construction to withstand mild chemical wipe-down in diagnostic equipment.
Is the Airtac MF20-25 Stainless Steel Mini Cylinder MF20X100SUTC the Right Cylinder?
If your payload is lighter, you have no smaller MF bore available, but stepping up to the MF25 raises the push force to 245.3 N at 0.5 MPa for heavier demands. For this 100 mm stroke, keep side loads minimal to avoid rod bending, and use the TC trunnion to accommodate slight misalignment. Remember that a standard cylinder drifts if air is lost or the valve is centred; the bumper pads only decelerate the end of travel and will not act as a brake. To suspend a load safely, install 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 MF20X100SUTC FAQ
At 0.5 MPa it provides 157 N push and 131.9 N pull. At 0.7 MPa it provides 219.8 N push and 184.7 N pull. The theoretical maximum force is 32 kgf at 1.0 MPa, and the air port is 1/8".
No, the base MF uses fixed TPU bumper pads that only decelerate the stroke end, not an adjustable air cushion. It also drifts when air is lost, so you need an external rod lock or pilot check valve to hold a load. The JIS-standard body is shorter than ISO 6432, and the -S magnet allows CMSG, DMSG, or EMSG sensors.
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