Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X25U
The AirTAC Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X25U is a genuine double acting + cushion JIS-standard round-body mini air cylinder with a Ø20mm bore and 25mm 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
- Stroke25 mm
- Port size1/8"
- Acting typeDouble acting + cushion
- Rod threadM8×1.25
- CushionVariable air cushion, both ends
- 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 MFC Cushioned Stainless Steel Mini Cylinder MFC20X25U
Designed with a variable air cushion at both ends, this double-acting JIS-standard round-body mini cylinder absorbs high-speed end-of-stroke shock far better than a basic bumper. The SUS304 stainless barrel and riveted aluminium covers resist mild corrosion and washdown, while the flat-end U back cover suits tight rear mounting spaces. Driven by a 1/8" port and an 8mm rod with an M8x1.25 male thread, it delivers 157N push and 131.9N pull at 0.5MPa.
For the same 20mm bore and 25mm stroke, the riveted rolling-packed construction is noticeably shorter than an ISO 6432 cylinder, saving valuable machine length. Operating at 30-800mm/s, it provides a safe working load of about 94N, or roughly 60% of its 0.5MPa push rating. Note that this specific SKU lacks a magnet, so it cannot accept CMSG, DMSG or EMSG switches without upgrading to the -S variant.
Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X25U Technical Specifications
| Model | Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X25U |
|---|---|
| Series | MFC JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 25 mm |
| Acting type | Double acting + cushion |
| 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 | Variable air cushion, both ends |
| 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 MFC Cushioned Stainless Steel Mini Cylinder MFC20X25U
| MFC | JIS-standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×25 | 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 MFC Cushioned Stainless Steel Mini Cylinder MFC20X25U Is Used
Light Parts Ejection
Shoots small plastic mouldings out of a press using 157N of push force, with the variable cushion preventing bounce-back at the end of the 25mm travel.
Package Diverting
Snaps a lightweight cardboard carton across a belt junction; the riveted stainless build handles the dusty ambient environment without issue.
Small Component Clamping
Holds a delicate electronic housing in place for a robotic soldering arm, relying on the smooth deceleration to avoid cracking the shell.
Is the Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X25U the Right Cylinder?
If 157N push at 0.5MPa is insufficient for your task, step up to the MFC25, which provides 245.3N; since 20mm is the smallest available MFC bore, there is no smaller option for lighter duties. The adjustable needle cushion is essential when cycling at high speeds or moving delicate loads, as it decelerates the piston smoothly before the end of the 25mm stroke. Remember that this cushion only reduces impact velocity, it does not function as a brake, so you must add an external rod lock or pilot check valve if the load needs to be held during air loss. Because this non-S model has no magnet, position sensing is impossible here, and you can mount it using LB foot, FA flange, SDB pivot or TC trunnion brackets.
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 MFC Cushioned Stainless Steel Mini Cylinder MFC20X25U FAQ
This 20mm bore, 25mm stroke cylinder uses a 1/8" port. At 0.5MPa it pushes with 157N and pulls with 131.9N. At 0.7MPa the push increases to 219.8N and the pull to 184.7N. The theoretical maximum force is 32kgf at 1.0MPa.
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 position sensing. The variable air cushion at both ends functions only to decelerate the piston near the stroke end, not to hold the load.
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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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