Airtac MFCJ Adjustable Mini Cylinder MFCJ25X225-50S
The AirTAC Airtac MFCJ Adjustable Mini Cylinder MFCJ25X225-50S 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 MFCJ25X225-50S
Tune both the extend end-point and end-of-stroke shock on-site with this double-acting, adjustable-stroke mini cylinder. The external adjuster shortens the extend stroke by up to 50 mm (yielding a 175-225 mm usable window), while the needle variable air cushion at both ends soaks up high-speed impact. It features a 25 mm bore, a 1/8" port, and an M10x1.25 male rod thread.
Built as a JIS-standard round-body unit with a SUS304 stainless barrel and riveted aluminium covers, this riveted construction is shorter than an ISO 6432 cylinder for the same stroke, saving valuable machine space. The -S suffix provides a built-in piston magnet for CMSG, DMSG, or EMSG switches. Delivering 245.3 N push force at 0.5 MPa, it handles a safe working load of roughly 147 N, lifting about 12.5 kg vertically with a 2:1 margin.
Airtac MFCJ Adjustable Mini Cylinder MFCJ25X225-50S Technical Specifications
| Model | Airtac MFCJ Adjustable Mini Cylinder MFCJ25X225-50S |
|---|---|
| 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 MFCJ25X225-50S
| 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 MFCJ25X225-50S Is Used
High-Speed Component Pressing
Dial in the 175-225 mm extend position for delicate bearing presses. The variable air cushion absorbs the 245.3 N push impact, preventing workpiece damage during rapid cycling.
Adjustable Transfer Diverters
Fine-tune the diverting stroke length on the fly for mixed-product conveyor lines. The 50 mm adjustment window accommodates various box sizes without swapping the cylinder.
Variable-Depth Carton Sealing
Adapt to different carton depths on a packaging line. The adjustable extend end ensures precise flap folding, while the cushion guarantees quiet stops at 800 mm/s.
Is the Airtac MFCJ Adjustable Mini Cylinder MFCJ25X225-50S the Right Cylinder?
When sizing this adjustable family, compare the real thrust figures: the 25 mm bore pushes 245.3 N at 0.5 MPa, sitting between the 157 N of an MFCJ20 and the 402.2 N of an MFCJ32. Choose the 25 mm bore when you need that mid-range force alongside on-site stroke tuning for high-speed changeovers or shock-sensitive trial fits. The 50 mm adjuster window lets you dial in the exact extend position without machining new parts.
For mounting, select from LB foot, FA flange, or TC trunnion options (there is no SDB or back-cover code on this build). The integrated -S magnet supports CMSG, DMSG, and EMSG sensors for position confirmation. Remember that the air cushion only decelerates the piston near the stroke end—it is not a lock. If the application must hold a load on air loss, add 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 MFCJ25X225-50S FAQ
This 25 mm bore cylinder features a 1/8" port and an M10x1.25 male rod thread. 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 maximum of 50 kgf at 1.0 MPa.
The external adjuster shortens the extend stroke by up to 50 mm on-site, giving a 175-225 mm usable window; retract remains full. The needle variable air cushion at both ends decelerates the piston to reduce shock, but it is not a lock. The -S suffix enables CMSG, DMSG, and EMSG sensors.
Authorized Export Seller
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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