Airtac MFJ Adjustable Mini Cylinder MFJ25X15-10S
The AirTAC Airtac MFJ Adjustable Mini Cylinder MFJ25X15-10S is a genuine double acting, adjustable stroke JIS-standard round-body mini air cylinder with a Ø25mm bore and 15mm 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
- Stroke15 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 MFJ25X15-10S
Fine-tune your extend end position on-site with the AirTAC MFJ25X15-10S, a JIS-standard round-body mini cylinder built with a SUS304 stainless barrel and riveted aluminium covers. An external adjuster shortens the extend stroke by up to 10 mm, giving a usable 5 to 15 mm extend window, which is ideal for trial fits and line changeovers where the exact end position is not final. The body is deliberately shorter than an ISO 6432 cylinder for the same bore and stroke, saving valuable mounting length.
Delivering 245.3 N push and 206.1 N pull at 0.5 MPa, this double-acting actuator uses fixed TPU bumper pads to decelerate the stroke end. Because this SKU includes the -S magnet, it is ready for CMSG, DMSG, or EMSG switches. Based on the 0.5 MPa push force, it handles a safe working load of about 147 N, lifting roughly 12.5 kg vertically with a 2:1 margin.
Airtac MFJ Adjustable Mini Cylinder MFJ25X15-10S Technical Specifications
| Model | Airtac MFJ Adjustable Mini Cylinder MFJ25X15-10S |
|---|---|
| Series | MFJ JIS mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 15 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 MFJ25X15-10S
| MFJ | JIS-standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 25 | Bore size in mm. |
| ×15 | 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 MFJ25X15-10S Is Used
Changeover Stations
Dial in the 5 to 15 mm extend position during format changes without machining new hard stops, leveraging the 245.3 N push force to shift light guides.
Trial Fit Rigs
Perfect for prototype benches where the exact stroke is unknown, letting technicians shorten the extend end by up to 10 mm on the fly.
Variable Position Stops
Serve as an adjustable end stop for lightweight 12.5 kg vertical lift tasks, using the built-in magnet to confirm the final position.
Is the Airtac MFJ Adjustable Mini Cylinder MFJ25X15-10S the Right Cylinder?
When sizing these adjustable cylinders, compare the real force classes: the MFJ20 delivers 157 N of push at 0.5 MPa, while the larger MFJ32 provides 402.2 N. This MFJ25 sits in the middle at 245.3 N, making it a strong fit for moderate pushing tasks. The 1/8" port and Ø10 mm rod with an M10x1.25 male thread keep the footprint small. Mounting options include LB foot, FA flange, and TC trunnion (no SDB or back-cover here).
The 10 mm adjustable window is perfect for set-up rigs and variable-position stops. Remember that the external adjuster only sets the end position; it is not a mid-stroke lock. A plain cylinder drifts on air loss, so for a held load you must add an external rod lock or pilot-operated 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 MFJ25X15-10S FAQ
This double-acting cylinder features a 1/8" port and a Ø10 mm rod. 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 maximum of 50 kgf at 1.0 MPa. Operating pressure ranges from 0.15 to 1.0 MPa.
The external adjuster shortens the extend stroke by up to 10 mm, giving a usable 5 to 15 mm extend window, while the retract remains full. It uses fixed TPU bumper pads for end deceleration, not an adjustable air cushion. The -S suffix means a piston magnet is built-in for CMSG, DMSG, or EMSG switches.
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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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