Airtac MFCJ Adjustable Mini Cylinder MFCJ25X75-40
The AirTAC Airtac MFCJ Adjustable Mini Cylinder MFCJ25X75-40 is a genuine double acting, adjustable stroke + cushion JIS-standard round-body mini air cylinder with a Ø25mm bore and 75mm 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
- Stroke75 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 MFCJ25X75-40
Dial in exact extend lengths on-site with the AirTAC MFCJ25X75-40, a JIS-standard round-body mini cylinder featuring a 40 mm adjustable stroke window and variable air cushioning at both ends. The SUS304 stainless steel barrel and riveted aluminium covers yield a body that is physically shorter than a comparable ISO 6432 unit, saving valuable mounting space while resisting mild washdown corrosion. A 1/8" port and Ø10 mm rod deliver a robust 245.3 N push force at 0.5 MPa.
Because the external needle only shortens the extend stroke (usable range 35-75 mm) and the cushion decelerates the piston near the ends, this double-acting actuator excels in high-speed changeovers where shock tuning is critical. Based on the 0.5 MPa push rating, it handles a safe working load of roughly 147 N, lifting about 12.5 kg vertically with a 2:1 margin. Note this specific SKU lacks a magnet, so it cannot accept position switches.
Airtac MFCJ Adjustable Mini Cylinder MFCJ25X75-40 Technical Specifications
| Model | Airtac MFCJ Adjustable Mini Cylinder MFCJ25X75-40 |
|---|---|
| Series | MFCJ JIS mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 75 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 MFCJ25X75-40
| MFCJ | JIS-standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 25 | Bore size in mm. |
| ×75 | 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 MFCJ25X75-40 Is Used
Component Seating Fixtures
Fine-tune the 35-75 mm extend stroke during changeovers to seat delicate electronic components precisely without crushing, utilising the 245.3 N push force effectively.
Carton Flap Folding
Adjust the extend end on the fly to match varying box heights while the variable air cushion absorbs the high-speed impact of the folding arm at stroke end.
Lightweight Diverting Arms
Handle product diverting on a conveyor where the 147 N safe working load easily pushes small goods, and the needle cushion ensures quiet stops at 800 mm/s.
Is the Airtac MFCJ Adjustable Mini Cylinder MFCJ25X75-40 the Right Cylinder?
When sizing this series, compare the real thrust outputs: the MFCJ20 provides 157 N of push force at 0.5 MPa, this MFCJ25 hits 245.3 N, and the larger MFCJ32 jumps to 402.2 N. Choose the 25 mm bore when your application needs moderate force alongside the 40 mm stroke adjustability for trial fits or varying part sizes. The integrated variable air cushion is essential for soaking up kinetic energy at speeds up to 800 mm/s.
Mounting options include LB foot, FA flange, and TC trunnion styles, with no SDB or back-cover option available on this adjustable build. If you need position feedback, select the -S magnet variant to enable CMSG, DMSG, or EMSG sensors. Remember that the air cushion only decelerates the load; it does not function as a brake, so add an external rod lock or pilot check valve if you must hold position against air loss.
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 MFCJ25X75-40 FAQ
This 25 mm bore cylinder uses a 1/8" port and a Ø10 mm rod. It generates a push force of 245.3 N and a pull force of 206.1 N at 0.5 MPa. At 0.7 MPa, push is 343.4 N and pull is 288.5 N. The theoretical maximum force is 50 kgf at 1.0 MPa.
No, this specific SKU does not include a magnet, so it cannot accept CMSG, DMSG, or EMSG switches. You must order the -S variant for sensing capabilities. The external adjuster shortens the extend stroke by up to 40 mm, and the variable air cushion handles end-of-stroke deceleration.
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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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