Airtac MFCJ Adjustable Mini Cylinder MFCJ25X50-50
The AirTAC Airtac MFCJ Adjustable Mini Cylinder MFCJ25X50-50 is a genuine double acting, adjustable stroke + cushion JIS-standard round-body mini air cylinder with a Ø25mm bore and 50mm 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
- Stroke50 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 MFCJ25X50-50
Dial in exact end positions and absorb high-speed shock with the AirTAC MFCJ25X50-50, a JIS-standard round-body mini cylinder. This double-acting actuator features a 50 mm adjustable extend window and needle-set variable air cushions at both ends. Built with a SUS304 stainless barrel and riveted aluminium covers, it is shorter than an ISO 6432 cylinder of the same size, saving valuable mounting length while resisting mild washdown.
Delivering 245.3 N push force at 0.5 MPa, it yields a safe working load of about 147 N and lifts roughly 12.5 kg vertically with a 2:1 margin. The bore-fixed 1/8" port and M10x1.25 male rod thread simplify integration. Note this SKU lacks the -S magnet, so it cannot accept CMSG/DMSG/EMSG position switches.
Airtac MFCJ Adjustable Mini Cylinder MFCJ25X50-50 Technical Specifications
| Model | Airtac MFCJ Adjustable Mini Cylinder MFCJ25X50-50 |
|---|---|
| Series | MFCJ JIS mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 50 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 MFCJ25X50-50
| MFCJ | JIS-standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 25 | Bore size in mm. |
| ×50 | 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 MFCJ25X50-50 Is Used
High-Speed Component Pressing
Tune the 50 mm extend window for delicate trial fits. The variable air cushion decelerates the 245.3 N push force smoothly, preventing impact damage on small electronic contacts.
Adjustable Transfer Diverter
Set the exact extend length on-site to reroute lightweight packages. The SUS304 round body handles mild washdown, while the needle cushion absorbs the repetitive high-speed cycling shock.
Vertical Lift Stops
Lift loads up to 12.5 kg with a 2:1 safety margin. The external adjuster lets you fine-tune the stopping height without machining spacers, though a pilot check valve is needed to hold the load on air loss.
Is the Airtac MFCJ Adjustable Mini Cylinder MFCJ25X50-50 the Right Cylinder?
When sizing this series, compare the real thrust: the MFCJ25 provides 245.3 N push at 0.5 MPa, sitting neatly between the MFCJ20 at 157 N and the MFCJ32 at 402.2 N. Choose the 25 mm bore when the smaller frame lacks force but the 32 mm is physically too large. The 50 mm adjustable window and dual air cushions excel in high-speed changeovers where end-of-stroke shock needs precise needle tuning.
Mounting options include LB foot, FA flange, and TC trunnion (no SDB). Because the cushion only decelerates and the adjuster sets the end position rather than locking mid-stroke, the piston drifts on air loss. For suspended loads, specify an external rod lock or pilot check valve. If you need sensing, select the -S magnet variant instead of this base model.
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 MFCJ25X50-50 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.
No, this specific SKU does not include the -S magnet and cannot accept CMSG, DMSG, or EMSG switches. You must select the -S variant for sensing. The 50 mm adjustable window shortens the extend stroke, and the variable air cushions only decelerate the piston near the ends rather than locking it.
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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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