Airtac MFD Double Rod Miniature Cylinder MFD25X20S
The AirTAC Airtac MFD Double Rod Miniature Cylinder MFD25X20S is a genuine double acting, double rod JIS-standard round-body mini air cylinder with a Ø25mm bore and 20mm 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.
- BoreØ25 mm
- Stroke20 mm
- Port size1/8"
- Acting typeDouble acting, double rod
- Rod threadM10×1.25
- 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 MFD Double Rod Miniature Cylinder MFD25X20S
Twin rods exiting both covers give the AirTAC MFD25X20S equal output force in both directions, rated at 206.1 N at 0.5 MPa and 288.5 N at 0.7 MPa. This JIS-standard round-body mini cylinder uses a SUS304 stainless barrel with riveted aluminium covers, offering a shorter mounting envelope than an ISO 6432 unit of the same size while resisting mild washdown corrosion.
Because the -S suffix includes a piston magnet, this version supports CMSG, DMSG and EMSG switches for position sensing. The 1/8 inch port and M10x1.25 male rod thread accommodate standard plumbing, while the fixed TPU bumper pads absorb end-of-stroke impacts. With a safe working load around 124 N, it easily handles vertical lifts of about 10.5 kg with a 2:1 safety margin.
Airtac MFD Double Rod Miniature Cylinder MFD25X20S Technical Specifications
| Model | Airtac MFD Double Rod Miniature Cylinder MFD25X20S |
|---|---|
| Series | MFD JIS mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 20 mm |
| Acting type | Double acting, double rod |
| Port size | 1/8" |
| Rod thread | M10×1.25 |
| 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 300 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 (Ø25mm)
| Pressure | Force (both ways) |
|---|---|
| 0.5 MPa | 206 N |
| 0.7 MPa | 289 N |
| Max (@1.0 MPa) | 42 kgf |
Double-rod: a rod exits both covers, so output force is equal in both directions (rod-side area used).
Model Code: Airtac MFD Double Rod Miniature Cylinder MFD25X20S
| MFD | JIS-standard round-body mini cylinder (double-rod). |
|---|---|
| 25 | Bore size in mm. |
| ×20 | 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 MFD Double Rod Miniature Cylinder MFD25X20S Is Used
Anti-Rotation Slides
The twin 10 mm rods prevent unwanted rotation during the 20 mm travel, keeping a 206.1 N guided payload perfectly aligned without external rails.
Twin-Tool Actuation
Mount a secondary tool or stopper on the rear rod to perform two synchronized actions in opposite directions using the same 1/8 inch ported body.
Magnet-Sensed Sorting
Leverage the built-in -S magnet with CMSG or EMSG switches to confirm position on a compact 10.5 kg vertical lift gate.
Is the Airtac MFD Double Rod Miniature Cylinder MFD25X20S the Right Cylinder?
Choose the MFD25X20S when you need 206.1 N of push and pull force from a compact 20 mm stroke. Stepping down to the MFD20 provides 131.9 N at 0.5 MPa, while the larger MFD32 offers 345.6 N for heavier guiding tasks. This 25 mm bore hits a strong middle ground for twin-tool actuation.
The second rod steadies the load and resists rotation better than a single-rod build. Remember that the fixed bumpers only decelerate the stroke end; they do not lock the piston. If you need to hold a vertical load against air loss, add an external rod lock or pilot check valve. Mounting options include LB foot, FA flange and TC trunnion brackets, but there is no SDB or back-cover code because a rod exits both ends.
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 MFD Double Rod Miniature Cylinder MFD25X20S FAQ
The MFD25X20S is a double-acting, double-rod cylinder with equal force both ways: 206.1 N at 0.5 MPa, 288.5 N at 0.7 MPa, and a theoretical maximum of 42 kgf at 1.0 MPa. It uses a 1/8 inch air port and operates at speeds between 30 and 800 mm/s.
No, the piston will drift on air loss. The fixed TPU bumper pads only decelerate the stroke end and do not act as a brake. For vertical load holding, you must install an external rod lock or pilot-operated check valve. The -S magnet enables sensors but does not lock the rod.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac MFD Double Rod Miniature Cylinder MFD25X20S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.