Airtac MFCJ Adjustable Mini Cylinder MFCJ25X80-75S
The AirTAC Airtac MFCJ Adjustable Mini Cylinder MFCJ25X80-75S is a genuine double acting, adjustable stroke + cushion JIS-standard round-body mini air cylinder with a Ø25mm bore and 80mm 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
- Stroke80 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 MFCJ25X80-75S
With a 75 mm on-site adjustable window, this JIS-standard round-body mini cylinder lets you fine-tune the extend stroke from 5 to 80 mm without dismantling. The needle-set variable air cushions at both ends decelerate high-speed loads smoothly, making it ideal for shock-sensitive changeovers.
The SUS304 stainless barrel and riveted aluminium covers keep the body compact - shorter than an ISO 6432 cylinder for the same bore and stroke. At 0.5 MPa it delivers 245.3 N push and 206.1 N pull; the 1/8" port suits tight layouts. With the -S magnet, CMSG, DMSG, or EMSG switches mount directly for position sensing.
Airtac MFCJ Adjustable Mini Cylinder MFCJ25X80-75S Technical Specifications
| Model | Airtac MFCJ Adjustable Mini Cylinder MFCJ25X80-75S |
|---|---|
| Series | MFCJ JIS mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 80 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 MFCJ25X80-75S
| MFCJ | JIS-standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 25 | Bore size in mm. |
| ×80 | 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 MFCJ25X80-75S Is Used
Packaging Changeover
Quickly adjust the extend stroke by up to 75 mm when switching package sizes. The 245.3 N push at 0.5 MPa handles light pushers, while the variable cushions prevent product damage at cycle rates up to 800 mm/s.
Fixture Positioning
Fine-tune the end position of a locating pin or clamp stop on a test rig. The 75 mm adjuster allows micrometer-level set-up changes, and the stainless barrel resists coolant splashes in machining cells.
High-Speed Sorting
Divert parts on a fast conveyor with the 206.1 N retract force at 0.5 MPa. The dual air cushions absorb the shock of rapid cycling, extending service life in continuous sorting operations.
Is the Airtac MFCJ Adjustable Mini Cylinder MFCJ25X80-75S the Right Cylinder?
Choose the MFCJ25X80-75S when you need 245.3 N push force at 0.5 MPa in a space-saving package. For lighter duty, the MFCJ20 provides 157 N at 0.5 MPa; for heavier work, the MFCJ32 delivers 402.2 N at 0.5 MPa. The 75 mm stroke adjuster and dual cushions make this ideal for high-speed cycling where end-of-stroke shock and exact positioning matter.
This cylinder does not hold position on air loss - the piston drifts. For a held load, add an external rod lock or pilot check valve. Mount with LB foot, FA flange, or TC trunnion (no SDB). The -S magnet enables CMSG/DMSG/EMSG sensors for reliable position feedback.
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 MFCJ25X80-75S FAQ
At 0.5 MPa, push is 245.3 N and pull is 206.1 N. At 0.7 MPa, push rises to 343.4 N and pull to 288.5 N. The theoretical maximum force is 50 kgf at 1.0 MPa. The 1/8" port and M10x1.25 rod thread are fixed for this bore.
An external adjuster shortens the extend end by up to 75 mm, giving a usable extend stroke of 5-80 mm; retract is always full. The -S magnet enables CMSG, DMSG, or EMSG switches for position sensing. The adjuster sets the end position - it is not a mid-stroke lock, and the air cushions only decelerate near stroke end.
Authorized Export Seller
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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