Airtac MFCJ Adjustable Mini Cylinder MFCJ25X175-40
The AirTAC Airtac MFCJ Adjustable Mini Cylinder MFCJ25X175-40 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 MFCJ25X175-40
Tune your extend stroke on-site with the AirTAC MFCJ25X175-40, a JIS-standard round-body mini cylinder featuring a 40 mm adjustable window. This double-acting actuator lets you shorten the extend end from 175 mm down to 135 mm, while the needle-set variable air cushion at both ends absorbs high-speed end-of-stroke shock. The SUS304 stainless steel barrel and riveted aluminium covers resist mild corrosion and washdown environments.
Delivering 245.3 N push force at 0.5 MPa (206.1 N pull) through a 1/8" port, it yields a safe working load of about 147 N. This translates to lifting roughly 12.5 kg vertically with a 2:1 safety margin. Note this SKU lacks the -S magnet, so it cannot accept CMSG, DMSG, or EMSG position switches.
Airtac MFCJ Adjustable Mini Cylinder MFCJ25X175-40 Technical Specifications
| Model | Airtac MFCJ Adjustable Mini Cylinder MFCJ25X175-40 |
|---|---|
| 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 MFCJ25X175-40
| 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 MFCJ25X175-40 Is Used
High-Speed Tool Trial Fits
Dial in the exact 135-175 mm extend position during machine changeovers while the needle air cushion prevents harsh impacts at 800 mm/s.
Light Item Diversion
Pushes light 12.5 kg packages with a safe 2:1 margin, letting operators fine-tune the 40 mm stroke window for varying product sizes.
Adjustable Carton Sealing
Accommodate fluctuating carton heights on the fly; the variable cushion ensures smooth, quiet retraction even under rapid cycling.
Is the Airtac MFCJ Adjustable Mini Cylinder MFCJ25X175-40 the Right Cylinder?
When sizing this series, compare the real thrust: the MFCJ20 provides 157 N, this MFCJ25 hits 245.3 N, and the MFCJ32 delivers 402.2 N at 0.5 MPa. Choose the 25 mm bore when your changeover requires precise 135-175 mm extend tuning alongside high-speed cushioning. The variable air cushion only decelerates the piston near stroke end; it does not lock the load. If gravity or air loss causes drift, install an external rod lock or pilot check valve.
Mounting options include LB foot, FA flange, and TC trunnion (no SDB or back-cover). Because this specific configuration omits the -S magnet, you must select an -S variant if your application requires CMSG, DMSG, or EMSG sensing.
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 MFCJ25X175-40 FAQ
This 25 mm bore cylinder uses a 1/8" port and generates 245.3 N push / 206.1 N pull at 0.5 MPa, and 343.4 N push / 288.5 N pull at 0.7 MPa. The theoretical maximum force is 50 kgf at 1.0 MPa.
No, this specific SKU does not include a magnet. You must purchase the -S variant to use CMSG, DMSG, or EMSG switches. The 40 mm external adjuster only shortens the extend stroke and does not act as a mid-stroke lock.
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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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