Airtac MFCJ Adjustable Mini Cylinder MFCJ25X150-40
The AirTAC Airtac MFCJ Adjustable Mini Cylinder MFCJ25X150-40 is a genuine double acting, adjustable stroke + cushion JIS-standard round-body mini air cylinder with a Ø25mm bore and 150mm 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
- Stroke150 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 MFCJ25X150-40
Dial in exact end positions and absorb high-speed shock with the AirTAC MFCJ25X150-40 adjustable-stroke mini cylinder. This JIS-standard round-body actuator uses a SUS304 stainless barrel and riveted aluminium covers, measuring shorter than an ISO 6432 unit for the same 25 mm bore and 150 mm stroke to save mounting length. An external adjuster shortens the extend stroke by up to 40 mm on-site, yielding a usable 110-150 mm extend window, while needle variable air cushions at both ends soak up end-of-stroke impact.
Delivering 245.3 N push and 206.1 N pull at 0.5 MPa (343.4 N / 288.5 N at 0.7 MPa), it handles a safe working load of roughly 147 N or lifts about 12.5 kg vertically with a 2:1 margin. The 1/8" port and M10x1.25 male rod thread suit compact rigs. Note this SKU lacks the -S magnet, so it cannot accept CMSG/DMSG/EMSG sensors.
Airtac MFCJ Adjustable Mini Cylinder MFCJ25X150-40 Technical Specifications
| Model | Airtac MFCJ Adjustable Mini Cylinder MFCJ25X150-40 |
|---|---|
| Series | MFCJ JIS mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 150 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 MFCJ25X150-40
| MFCJ | JIS-standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 25 | Bore size in mm. |
| ×150 | 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 MFCJ25X150-40 Is Used
High-Speed Forming Press
Use the 40 mm extend adjuster to set the precise 110-150 mm forming depth on the fly, while the needle air cushion absorbs the 245.3 N push impact at high cycle rates.
Package Divert Arm
Fine-tune the divert stroke during line changeovers; the variable cushion halts the arm smoothly without slamming, protecting lightweight packaging.
Lab Test Fixture
Ideal for shock-sensitive trial fits where exact contact position varies by sample, letting operators dial back the extend stroke without remounting the cylinder.
Is the Airtac MFCJ Adjustable Mini Cylinder MFCJ25X150-40 the Right Cylinder?
When sizing this series, compare the real thrust: the MFCJ20 yields 157 N, this MFCJ25 hits 245.3 N, and the MFCJ32 jumps to 402.2 N at 0.5 MPa. Choose the 25 mm bore when you need that mid-range force in a tight footprint, and use the 40 mm adjustable window for trial fits or changeovers where the exact extend point is unknown until commissioning.
The variable air cushion decelerates the piston near stroke end but does not lock the load; if air drops, the piston drifts, so fit an external rod lock or pilot check valve for holding. Mount via LB foot, FA flange, or TC trunnion (no SDB). Because this exact code has no -S suffix, it cannot host a magnetic sensor.
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 MFCJ25X150-40 FAQ
At 0.5 MPa it pushes 245.3 N and pulls 206.1 N; at 0.7 MPa it pushes 343.4 N and pulls 288.5 N, with a theoretical max of 50 kgf at 1.0 MPa. It uses a 1/8" port, a 10 mm rod, and an M10x1.25 male rod thread.
No, this specific SKU lacks the -S magnet option, so it cannot accept CMSG, DMSG, or EMSG switches. The external adjuster shortens the extend stroke by up to 40 mm, but it only sets the end position—it is not a mid-stroke lock.
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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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