Airtac MFJ Adjustable Mini Cylinder MFJ25X75-75STC
The AirTAC Airtac MFJ Adjustable Mini Cylinder MFJ25X75-75STC is a genuine double acting, adjustable stroke 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
- Rod threadM10×1.25
- CushionFixed TPU bumper pads
- 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 MFJ Adjustable Mini Cylinder MFJ25X75-75STC
Dial in your extend end-point on the fly with the AirTAC MFJ25X75-75STC. This JIS-standard round-body mini cylinder uses a 1/8" port and an external adjuster to shorten the extend stroke by up to 75 mm on site, while the retract stroke remains full length. It delivers 245.3 N of push force at 0.5 MPa.
The riveted SUS304 stainless barrel and aluminium covers resist mild corrosion and washdown. For the same bore and stroke, this body is shorter than an ISO 6432 cylinder, saving mounting length. It carries a built-in magnet for CMSG/DMSG/EMSG switches and uses fixed TPU bumper pads to decelerate the stroke end. With a 147 N safe working load, it lifts about 12.5 kg vertically with a 2:1 margin.
Airtac MFJ Adjustable Mini Cylinder MFJ25X75-75STC Technical Specifications
| Model | Airtac MFJ Adjustable Mini Cylinder MFJ25X75-75STC |
|---|---|
| Series | MFJ JIS mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 75 mm |
| Acting type | Double acting, adjustable stroke |
| 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 | Fixed TPU bumper pads |
| 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 MFJ Adjustable Mini Cylinder MFJ25X75-75STC
| MFJ | JIS-standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 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 MFJ Adjustable Mini Cylinder MFJ25X75-75STC Is Used
Changeover Stations
Rapidly reconfigure the extend end-point up to 75 mm during product format changes without swapping the cylinder or adding external mechanical stops.
Trial Fit Rigs
Perfect for prototype assembly where the exact 12.5 kg vertical lift position is unknown, letting operators dial in the stroke during commissioning.
Variable Position Stops
Use the 245.3 N push force to drive parts, while the external adjuster precisely sets the end position for varying component lengths on the same line.
Is the Airtac MFJ Adjustable Mini Cylinder MFJ25X75-75STC the Right Cylinder?
Weigh your options between the 20, 25, 32, and 40 mm bores. The MFJ25 hits 245.3 N push at 0.5 MPa, sitting comfortably between the MFJ20 at 157 N and the MFJ32 at 402.2 N. Choose this adjustable version for trial fits or line changeovers where the exact extend position is not final. The 75 mm adjuster window lets you fine-tune without buying a new cylinder. A TC trunnion mount is included, and the -S magnet enables position sensing. Note that the bumper only decelerates; for load holding on air loss, install an external rod lock or pilot check valve.
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 MFJ Adjustable Mini Cylinder MFJ25X75-75STC FAQ
This 25 mm bore cylinder features a 1/8" port and a 10 mm rod with an M10x1.25 male thread. It generates 245.3 N push and 206.1 N pull at 0.5 MPa, 343.4 N push and 288.5 N pull at 0.7 MPa, with a theoretical max of 50 kgf at 1.0 MPa. Speed is 30-800 mm/s.
The external adjuster shortens the extend stroke by up to 75 mm on site without changing the base stroke. The cylinder uses fixed TPU bumper pads to decelerate at the end of travel, not an adjustable air cushion. The built-in -S magnet supports CMSG, DMSG, and EMSG switches.
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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