Airtac MFCJ Adjustable Mini Cylinder MFCJ25X175-50
The AirTAC Airtac MFCJ Adjustable Mini Cylinder MFCJ25X175-50 is a genuine double acting, adjustable stroke + cushion JIS-standard round-body mini air cylinder with a Ø25mm bore and 175mm 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
- Stroke175 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 MFCJ25X175-50
Dial in the extend travel exactly where you need it with the AirTAC MFCJ25X175-50, 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 50 mm on-site (usable range 125-175 mm), while the needle-set variable air cushion at both ends soaks up high-speed end-of-stroke shock. Because the MF body is shorter than an ISO 6432 cylinder for the same bore and stroke, it saves valuable mounting length without conforming to that standard.
This double-acting 25 mm bore unit pushes 245.3 N and pulls 206.1 N at 0.5 MPa, yielding a safe working load of about 147 N and a vertical lift capacity of roughly 12.5 kg with a 2:1 margin. It features a 10 mm rod, M10x1.25 male thread, and a 1/8" port. Note that this specific SKU lacks the -S magnet, so it cannot accept CMSG/DMSG/EMSG position switches.
Airtac MFCJ Adjustable Mini Cylinder MFCJ25X175-50 Technical Specifications
| Model | Airtac MFCJ Adjustable Mini Cylinder MFCJ25X175-50 |
|---|---|
| Series | MFCJ JIS mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 175 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 MFCJ25X175-50
| MFCJ | JIS-standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 25 | Bore size in mm. |
| ×175 | 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 MFCJ25X175-50 Is Used
High-Speed Forming Press
Tune the 125-175 mm extend stroke on the fly and set the needle air cushions to absorb high-speed shock when ejecting 12.5 kg metal blanks.
Variable-Stop Diverters
Adjust the extend end by up to 50 mm during product changeovers to hit different package sizes, relying on the 245.3 N push force to redirect goods smoothly.
Carton Sealing Heads
Dial in the exact closure distance and let the variable air cushion quietly decelerate the 25 mm bore piston at 800 mm/s without slamming the tooling.
Is the Airtac MFCJ Adjustable Mini Cylinder MFCJ25X175-50 the Right Cylinder?
When sizing this adjustable family, compare the real 0.5 MPa push forces: the MFCJ20 delivers 157 N, this MFCJ25 provides 245.3 N, and the MFCJ32 jumps to 402.2 N. Choose the 25 mm bore when your changeover requires roughly 147 N of safe working force and you need to trim the extend end on the fly without swapping cylinders. The combination of a 50 mm adjuster window and twin variable air cushions makes it ideal for high-speed, shock-sensitive trial fits.
Remember that the air cushion only decelerates the piston near the stroke end—it is not a lock or brake. If the load must hold position on air loss or when the valve is centred, the piston will drift; add an external rod lock or pilot-operated check valve. For mounting, use LB foot, FA flange, or TC trunnion brackets (SDB and back-cover mounts are unavailable on this build). If you need position feedback, select the -S magnet variant to enable CMSG/DMSG/EMSG sensors.
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 MFCJ25X175-50 FAQ
This 25 mm bore double-acting cylinder has a 1/8" port and a 10 mm rod with an M10x1.25 male thread. It pushes 245.3 N and pulls 206.1 N at 0.5 MPa, pushes 343.4 N and pulls 288.5 N at 0.7 MPa, with a theoretical maximum force of 50 kgf at 1.0 MPa.
No, this specific SKU does not include the -S magnet, so it cannot accept CMSG, DMSG, or EMSG switches. The external adjuster shortens the extend stroke by up to 50 mm but only sets the end position; it does not act as a mid-stroke lock.
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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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Most inquiries answered within 7-8 hours.
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