Airtac MFCJ Adjustable Mini Cylinder MFCJ25X75-20S
The AirTAC Airtac MFCJ Adjustable Mini Cylinder MFCJ25X75-20S 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 MFCJ25X75-20S
Dial in exact end positions and absorb high-speed shock with the AirTAC MFCJ25X75-20S, a JIS-standard round-body mini cylinder. It features a 20 mm external adjuster that shortens the extend stroke down to 55 mm, paired with a needle-set variable air cushion at both ends. The riveted SUS304 stainless barrel and aluminium covers yield a shorter mounting envelope than an ISO 6432 unit of the same bore.
Delivering 245.3 N push and 206.1 N pull at 0.5 MPa through a 1/8" port, this double-acting actuator handles a safe working load of roughly 147 N. It lifts about 12.5 kg vertically with a 2:1 margin. The built-in -S magnet supports CMSG, DMSG and EMSG switches for position sensing.
Airtac MFCJ Adjustable Mini Cylinder MFCJ25X75-20S Technical Specifications
| Model | Airtac MFCJ Adjustable Mini Cylinder MFCJ25X75-20S |
|---|---|
| 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 MFCJ25X75-20S
| 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 MFCJ25X75-20S Is Used
High-Speed Component Pressing
Tune the 20 mm extend window to set exact contact depth, while the variable air cushion decelerates the 245.3 N push force smoothly at the end of travel.
Adjustable Transfer Diverter
Dial in the perfect divert distance on-site for changing package sizes, relying on the needle cushion to absorb shock during 800 mm/s cycling.
Vertical Lift Stops
Lifts about 12.5 kg with a 2:1 safety margin; adjust the extend stop precisely to meet varying shelf heights without re-mounting the cylinder.
Is the Airtac MFCJ Adjustable Mini Cylinder MFCJ25X75-20S the Right Cylinder?
Weigh this 25 mm bore against the adjacent sizes: the MFCJ20 provides 157 N of push force at 0.5 MPa, while the MFCJ32 jumps to 402.2 N. The MFCJ25X75-20S sits perfectly in the middle, offering 245.3 N for medium-duty changeovers. Choose it when both the extend length and end-of-stroke shock need on-site tuning during high-speed trial fits.
Mount using LB foot, FA flange or TC trunnion brackets (no SDB or back-cover option exists). The air cushion decelerates the piston near stroke end but does not lock the load; if air drops, the rod drifts. Specify an external rod lock or pilot check valve for held loads. The -S magnet enables CMSG, DMSG and EMSG sensors.
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 MFCJ25X75-20S FAQ
This double-acting cylinder uses a 1/8" port and generates 245.3 N push / 206.1 N pull at 0.5 MPa, 343.4 N push / 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 20 mm (usable range 55-75 mm), and the variable air cushion decelerates the piston at both ends. The cushion is not a brake; the piston drifts on air loss. The -S magnet allows CMSG, DMSG and EMSG sensors.
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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