Airtac MFCJ Adjustable Mini Cylinder MFCJ25X80-50
The AirTAC Airtac MFCJ Adjustable Mini Cylinder MFCJ25X80-50 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 MFCJ25X80-50
Trim the extend stroke by up to 50 mm on site with the AirTAC MFCJ25X80-50, giving a usable 30-80 mm forward travel while retract remains full. This JIS-standard round-body mini cylinder pairs that external adjuster with a needle variable air cushion at both ends to soak up high-speed end-of-stroke shock.
Built with a SUS304 stainless barrel and riveted aluminium covers, the body is deliberately shorter than an ISO 6432 cylinder for the same 25 mm bore and 80 mm stroke, saving mounting length. The 1/8" port and Ø10 mm rod deliver 245.3 N push at 0.5 MPa, yielding a safe working load of roughly 147 N or about 12.5 kg vertical lift with a 2:1 margin.
Airtac MFCJ Adjustable Mini Cylinder MFCJ25X80-50 Technical Specifications
| Model | Airtac MFCJ Adjustable Mini Cylinder MFCJ25X80-50 |
|---|---|
| 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 MFCJ25X80-50
| 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 MFCJ25X80-50 Is Used
Light Part Ejection
Tune the 50 mm extend window and needle cushion to eject light plastic parts at speed without slamming the end cap.
Transfer Diverter
Dial in the exact 30-80 mm push stroke to deflect small cartons on a belt, using the air cushion to absorb the impact.
Lab Test Fixture
Ideal for trial fits where the 245.3 N push force must be applied precisely and the deceleration ramp adjusted per sample.
Is the Airtac MFCJ Adjustable Mini Cylinder MFCJ25X80-50 the Right Cylinder?
Weighing the bores: an MFCJ20 gives 157 N push at 0.5 MPa which may stall here, while stepping up to an MFCJ32 provides 402.2 N—often overkill. The 25 mm bore hits a practical middle ground at 245.3 N. Choose this adjustable-cushion build for high-speed changeovers or trial fits where both the exact end position and the deceleration ramp need tuning.
Mount via LB foot, FA flange or TC trunnion (no SDB or back-cover). Note that this SKU lacks the -S magnet, so it cannot accept CMSG/DMSG/EMSG switches; add -S if you need sensing. The cushion only decelerates near stroke end—it is not a lock. For held loads, specify an external rod lock or pilot 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 MFCJ Adjustable Mini Cylinder MFCJ25X80-50 FAQ
This 25 mm bore cylinder has a 1/8" port and a Ø10 mm rod. It generates 245.3 N push and 206.1 N pull at 0.5 MPa, 343.4 N push and 288.5 N pull at 0.7 MPa, with a theoretical max of 50 kgf at 1.0 MPa.
This SKU lacks the -S magnet, so CMSG/DMSG/EMSG switches cannot be fitted; order the -S variant for sensing. The 50 mm external adjuster only shortens the extend stroke, and the variable air cushion only decelerates—it does not lock or hold the load on air loss.
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1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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