Airtac MFCJ Adjustable Mini Cylinder MFCJ25X250-10
The AirTAC Airtac MFCJ Adjustable Mini Cylinder MFCJ25X250-10 is a genuine double acting, adjustable stroke + cushion JIS-standard round-body mini air cylinder with a Ø25mm bore and 250mm 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
- Stroke250 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 MFCJ25X250-10
Dial in exact end positions and absorb end-of-stroke shock with the AirTAC MFCJ25X250-10, a JIS-standard round-body mini cylinder built with a SUS304 stainless barrel and riveted aluminium covers. An external adjuster lets you shorten the extend stroke on-site by up to 10 mm, giving a usable 240-250 mm extension, while needle variable air cushions at both ends soak up high-speed impact. For the same bore and stroke, this riveted body is notably shorter than an ISO 6432 cylinder, saving valuable mounting length.
Operating at 30-800 mm/s on a 1/8" port with a Ø10 mm rod (M10x1.25 male thread), this double-acting actuator delivers 245.3 N push and 206.1 N pull at 0.5 MPa. That translates to a safe working load of about 147 N, or roughly 12.5 kg of vertical lift with a 2:1 margin. Note this SKU lacks the -S magnet, so it cannot accept CMSG/DMSG/EMSG sensors.
Airtac MFCJ Adjustable Mini Cylinder MFCJ25X250-10 Technical Specifications
| Model | Airtac MFCJ Adjustable Mini Cylinder MFCJ25X250-10 |
|---|---|
| Series | MFCJ JIS mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 250 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 MFCJ25X250-10
| MFCJ | JIS-standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 25 | Bore size in mm. |
| ×250 | 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 MFCJ25X250-10 Is Used
Sorter Diverter Tuning
Fine-tune the 240-250 mm extend stroke by up to 10 mm on-site to hit diverter gates perfectly, while the variable air cushion silently absorbs the 245.3 N push force impact at high cycle speeds.
Light Part Press Fit
Ideal for delicate trial fits where the exact 10 mm adjuster window dials in contact depth, and the needle cushion prevents slamming when moving 12.5 kg vertical loads.
Compact Packaging Stop
Leverage the shorter-than-ISO-6432 body to save space on tight packaging lines, using the 147 N safe working load to halt cartons smoothly without end-of-stroke bang.
Is the Airtac MFCJ Adjustable Mini Cylinder MFCJ25X250-10 the Right Cylinder?
When sizing this adjustable-cushion series, compare the real thrust: the MFCJ20 provides 157 N @0.5 MPa, this MFCJ25 hits 245.3 N, and the larger MFCJ32 offers 402.2 N. Choose the 25 mm bore when you need moderate force in a compact footprint. The 10 mm adjustable window and dual variable air cushions are ideal for high-speed changeovers or shock-sensitive trial fits where you must tune both the end position and the deceleration ramp.
Mounting options include LB foot, FA flange, and TC trunnion (no SDB or back-cover). Remember that the air cushion only decelerates the piston near stroke end—it is not a lock or brake. If the machine loses air, the piston will drift; for suspended loads, install an external rod lock or pilot-operated check valve. Because this specific SKU has no magnet, position sensing is not possible without upgrading to the -S variant.
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 MFCJ25X250-10 FAQ
This 25 mm bore cylinder features a 1/8" port and a Ø10 mm rod. It delivers 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 10 mm (usable range 240-250 mm), and the variable air cushion at both ends only decelerates the piston—it is not a mid-stroke lock or brake. This specific SKU lacks the -S magnet, so it cannot accept CMSG/DMSG/EMSG sensors; you would need the -S variant for position sensing.
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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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