Airtac MF20-25 Stainless Steel Mini Cylinder MF20X10U
The AirTAC Airtac MF20-25 Stainless Steel Mini Cylinder MF20X10U is a genuine double acting JIS-standard round-body mini air cylinder with a Ø20mm bore and 10mm 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
- Stroke10 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionFixed TPU bumper pads
About the Airtac MF20-25 Stainless Steel Mini Cylinder MF20X10U
Generating 157 N of push force at 0.5 MPa, this double-acting AirTAC MF20X10U mini cylinder is built around a JIS-standard round body. Because the SUS304 stainless barrel and aluminium covers use a riveted rolling-packed structure, the overall envelope is physically shorter than an ISO 6432 cylinder for the same 20 mm bore and 10 mm stroke. This compact footprint is a major advantage when mounting space is tight, while the stainless construction resists mild corrosion and washdown. The piston relies on a heterogeneous two-way seal that retains an oil film for long service life.
The cylinder breathes through a 1/8 inch port and decelerates using fixed TPU bumper pads rather than an adjustable air cushion. For practical sizing, plan for about 94 N of real work at 0.5 MPa, which safely lifts an 8 kg vertical load with a 2:1 margin. This specific SKU lacks the -S magnet, so it cannot accept CMSG, DMSG or EMSG position switches. The U flat-end back cover provides a straightforward flush rear mounting face for direct attachment.
Airtac MF20-25 Stainless Steel Mini Cylinder MF20X10U Technical Specifications
| Model | Airtac MF20-25 Stainless Steel Mini Cylinder MF20X10U |
|---|---|
| Series | MF JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 10 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 MF20X10U
| MF | JIS-standard round-body mini cylinder (double-acting). |
|---|---|
| 20 | Bore size in mm. |
| ×10 | 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 MF20X10U Is Used
Ejector Pins
Snaps small plastic parts out of moulds using the 10 mm stroke, safely delivering about 94 N of working push force at 0.5 MPa.
Small Part Sorting
Pushes lightweight electronic components down chutes where the compact JIS body saves valuable mounting space in dense gripper arrays.
Flap Tucking
Tucks carton flaps in packaging lines, benefiting from the flush U flat-end back cover for tight side-frame installations.
Is the Airtac MF20-25 Stainless Steel Mini Cylinder MF20X10U the Right Cylinder?
When sizing this 20 mm bore unit, consider the next size up: the MF25 generates 245.3 N of push force at 0.5 MPa if your application outgrows the 157 N available here. Since 20 mm is the smallest MF bore, dropping down a size is not an option. This model carries a U flat-end back cover, but you can also select LB foot, FA flange, SDB pivot or TC trunnion mounts to suit your frame. Keep in mind that a plain double-acting cylinder drifts if air pressure drops or the valve is centred; the TPU bumpers only soften the stroke end and will not hold a load. Use an external rod lock or a pilot-operated check valve if you need strict position holding.
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 MF20X10U FAQ
This 20 mm bore cylinder features a 1/8 inch port and an M8x1.25 male rod thread. At 0.5 MPa it provides 157 N of push force and 131.9 N of pull force. 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.
No, this specific SKU does not include the -S magnet, so it cannot accept CMSG, DMSG or EMSG switches. The body is a JIS-standard round-body design that is physically shorter than an ISO 6432 cylinder, and it uses fixed TPU bumper pads to decelerate the stroke end rather than an adjustable cushion.
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