Airtac MFCJ Adjustable Mini Cylinder MFCJ25X225-30
The AirTAC Airtac MFCJ Adjustable Mini Cylinder MFCJ25X225-30 is a genuine double acting, adjustable stroke + cushion JIS-standard round-body mini air cylinder with a Ø25mm bore and 225mm 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
- Stroke225 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 MFCJ25X225-30
Dial in your extend position on the floor with the AirTAC MFCJ25X225-30, a JIS-standard round-body mini cylinder built from SUS304 stainless steel and riveted aluminium covers. An external adjuster lets you shorten the extend stroke by up to 30 mm (usable range 195-225 mm), while needle-set variable air cushions at both ends soak up high-speed end-of-stroke shock. This double-acting actuator uses a 1/8" port and a Ø10 mm rod, delivering 245.3 N of push force at 0.5 MPa.
Because the riveted MF body is physically shorter than a comparable ISO 6432 unit for the same 25 mm bore and 225 mm stroke, it saves valuable mounting length without sacrificing the 50 kgf theoretical maximum at 1.0 MPa. The SUS304 barrel shrugs off mild washdown environments. Note that this specific SKU lacks the -S magnet, so it cannot accept CMSG, DMSG, or EMSG position switches. The cushions only decelerate the piston near the ends; they do not lock or hold the load.
Airtac MFCJ Adjustable Mini Cylinder MFCJ25X225-30 Technical Specifications
| Model | Airtac MFCJ Adjustable Mini Cylinder MFCJ25X225-30 |
|---|---|
| Series | MFCJ JIS mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 225 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 MFCJ25X225-30
| MFCJ | JIS-standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 25 | Bore size in mm. |
| ×225 | 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 MFCJ25X225-30 Is Used
High-Speed Diverter
Tune the 30 mm extend window and needle air cushion to softly push 12.5 kg cartons off a high-speed belt without slamming at the end of the 225 mm stroke.
Changeover Forming Press
Adjust the extend end position on the fly during product changeovers, using the 245.3 N push force to trial-fit parts while the variable cushion absorbs the high-speed impact.
Vertical Lift Gate
Raise and lower light 10 kg access gates using the full 225 mm stroke, relying on the adjustable cushion to prevent bounce at the top extend position.
Is the Airtac MFCJ Adjustable Mini Cylinder MFCJ25X225-30 the Right Cylinder?
When sizing this adjustable-cushion family, compare the real 0.5 MPa push figures: the smaller MFCJ20 yields 157 N, this MFCJ25 hits 245.3 N, and the larger MFCJ32 jumps to 402.2 N. This 25 mm bore is ideal when you need a safe working load of roughly 147 N (about 60% of the 0.5 MPa push figure) or want to lift about 12.5 kg vertically with a 2:1 safety margin. Choose the MFCJ specifically for high-speed changeovers where both the exact end position and the deceleration ramp need field tuning.
Mount this cylinder using LB foot, FA flange, or TC trunnion brackets (SDB and back-cover mounts are not available on the adjustable build). If your application requires position feedback, select the -S magnet variant to enable CMSG, DMSG, or EMSG sensors. Remember that a standard cylinder drifts when air pressure is lost or the valve is centered; for suspended loads, install an external rod lock or pilot-operated check valve, as the air cushion is strictly a deceleration device and never a brake.
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 MFCJ25X225-30 FAQ
This 25 mm bore cylinder features a 1/8" port and a Ø10 mm rod. At 0.5 MPa it provides 245.3 N push and 206.1 N pull force. At 0.7 MPa it provides 343.4 N push and 288.5 N pull. The theoretical maximum force is 50 kgf at 1.0 MPa.
This specific SKU does not include a magnet, so it cannot accept CMSG, DMSG, or EMSG switches; you must order the -S variant for sensing. The external adjuster shortens the extend stroke by up to 30 mm (usable range 195-225 mm), and the variable air cushions at both ends decelerate the piston near the ends but do 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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