Airtac MFCJ Adjustable Mini Cylinder MFCJ25X80-100S
The AirTAC Airtac MFCJ Adjustable Mini Cylinder MFCJ25X80-100S is a genuine double acting, adjustable stroke + cushion JIS-standard round-body mini air cylinder with a Ø25mm bore and 80mm 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
- Stroke80 mm
- Port size1/8"
- Acting typeDouble acting, adjustable stroke + cushion
- Rod threadM10×1.25
- 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 MFCJ Adjustable Mini Cylinder MFCJ25X80-100S
Tune both the extend reach and end-of-stroke shock on-site with this double-acting, adjustable-stroke mini cylinder. It features a 100 mm adjuster window that shortens the extend end down to a usable 0-80 mm, while the needle variable air cushion at both ends soaks up high-speed impact. The riveted SUS304 stainless round body with aluminium covers is JIS-standard, delivering a shorter mounting length than an ISO 6432 unit for the same bore.
Built with a piston magnet for CMSG, DMSG or EMSG switches, this 25 mm bore model pushes 245.3 N at 0.5 MPa via a 1/8" port. It yields a safe working load of about 147 N, lifting roughly 12.5 kg vertically with a 2:1 margin. The external adjuster sets the end position but is not a mid-stroke lock; the cushion only decelerates near the end and will not hold the load on air loss.
Airtac MFCJ Adjustable Mini Cylinder MFCJ25X80-100S Technical Specifications
| Model | Airtac MFCJ Adjustable Mini Cylinder MFCJ25X80-100S |
|---|---|
| Series | MFCJ JIS mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 80 mm |
| Acting type | Double acting, adjustable stroke + cushion |
| 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 | 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 (Ø25mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 245 N | 206 N |
| 0.7 MPa | 344 N | 289 N |
| Max (@1.0 MPa) | 50 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac MFCJ Adjustable Mini Cylinder MFCJ25X80-100S
| MFCJ | JIS-standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 25 | Bore size in mm. |
| ×80 | 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 MFCJ Adjustable Mini Cylinder MFCJ25X80-100S Is Used
Adjustable Tooling Stops
Dial in the extend position by up to 100 mm during machine changeovers, using the 245.3 N push force to set precise mechanical stops for varying part lengths.
High-Speed Diverting
Rely on the variable air cushion to silently absorb end-of-stroke shock when rapidly sorting lightweight 12.5 kg packages at 800 mm/s.
Trial Fit Assembly
Use the 0-80 mm usable extend window to safely trial-fit components without repositioning the cylinder, preventing impact damage during prototyping.
Is the Airtac MFCJ Adjustable Mini Cylinder MFCJ25X80-100S the Right Cylinder?
Choose this 25 mm bore when you need 245.3 N of push force at 0.5 MPa with on-site stroke tuning. Step down to an MFCJ20 for lighter 157 N tasks, or up to an MFCJ32 if your application requires 402.2 N. The 100 mm adjuster window is ideal for high-speed changeovers where the exact extend position and shock deceleration both need dialling in.
Because the -S magnet is present, you can mount CMSG, DMSG or EMSG sensors directly. Remember that the air cushion only decelerates the piston near stroke end; it does not function as a brake. If the machine loses air, the piston will drift, so fit an external rod lock or pilot check valve for suspended loads.
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 MFCJ Adjustable Mini Cylinder MFCJ25X80-100S FAQ
This 25 mm bore cylinder has a 1/8" air port and a 10 mm rod with an M10x1.25 thread. At 0.5 MPa it pushes 245.3 N and pulls 206.1 N. At 0.7 MPa it pushes 343.4 N and pulls 288.5 N. The theoretical maximum force is 50 kgf at 1.0 MPa.
The external adjuster shortens the extend stroke by up to 100 mm, giving a usable 0-80 mm extend range while retract remains full. The -S suffix means a piston magnet is built-in for CMSG, DMSG or EMSG switches. The needle air cushion decelerates the piston at the ends but does not lock or hold the load.
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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.
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