Airtac MFCJ Adjustable Mini Cylinder MFCJ25X300-75
The AirTAC Airtac MFCJ Adjustable Mini Cylinder MFCJ25X300-75 is a genuine double acting, adjustable stroke + cushion JIS-standard round-body mini air cylinder with a Ø25mm bore and 300mm 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
- Stroke300 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 MFCJ25X300-75
Trim the extend stroke by up to 75 mm on site with the external adjuster, and use the needle valve at each end to dial in a variable air cushion for smooth high-speed motion. This AirTAC MFCJ25X300-75 is a double-acting, JIS-standard round-body mini cylinder built with a SUS304 stainless barrel and riveted aluminium covers, offering a usable extend range of 225-300 mm while retract remains full.
Delivering 245.3 N of 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 body is shorter than an ISO 6432 cylinder for the same bore and stroke, saving mounting length, and the 1/8" port keeps air delivery compact. Note this SKU lacks a magnet, so it cannot take a CMSG/DMSG/EMSG sensor.
Airtac MFCJ Adjustable Mini Cylinder MFCJ25X300-75 Technical Specifications
| Model | Airtac MFCJ Adjustable Mini Cylinder MFCJ25X300-75 |
|---|---|
| Series | MFCJ JIS mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 300 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 MFCJ25X300-75
| MFCJ | JIS-standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 25 | Bore size in mm. |
| ×300 | 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 MFCJ25X300-75 Is Used
High-Speed Diverting
Tune the 225-300 mm extend reach on the fly to push varying carton sizes off a belt, relying on the variable air cushion to absorb the 245.3 N impact at high cycle rates.
Trial-Fit Clamping
Dial in the exact 75 mm stroke window during machine changeovers to clamp delicate parts, using the needle cushion to prevent harsh end-of-stroke shock.
Vertical Lift Stops
Lift loads up to 12.5 kg in a compact cell where the shorter-than-ISO-6432 body saves vertical space, letting the cushion gently settle the load at the top.
Is the Airtac MFCJ Adjustable Mini Cylinder MFCJ25X300-75 the Right Cylinder?
Size both ways using real 0.5 MPa figures: the MFCJ20 provides 157 N of push, this MFCJ25 hits 245.3 N, and the MFCJ32 delivers 402.2 N. Choose this 25 mm bore when you need mid-range force plus a 75 mm adjustable window for trial fits or changeovers where end-of-stroke shock also needs tuning. The variable air cushion only decelerates the piston near the ends, it is not a lock or brake, so add an external rod lock or pilot check valve if the load must hold position on air loss.
Mounting options include LB foot, FA flange, and TC trunnion (no SDB or back-cover). Because this exact SKU has no -S magnet, it cannot accept position sensing; order the -S variant if you need CMSG, DMSG, or EMSG switches.
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 MFCJ25X300-75 FAQ
This 25 mm bore cylinder has 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.
This specific SKU has no -S magnet, so it cannot accept CMSG, DMSG, or EMSG switches. The external adjuster shortens the extend stroke by up to 75 mm (usable range 225-300 mm) and the needle variable air cushion at both ends decelerates the piston near stroke end, but neither feature locks or holds the load.
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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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