Airtac MFJ Adjustable Mini Cylinder MFJ25X25-10S
The AirTAC Airtac MFJ Adjustable Mini Cylinder MFJ25X25-10S is a genuine double acting, adjustable stroke JIS-standard round-body mini air cylinder with a Ø25mm bore and 25mm 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
- Stroke25 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 MFJ25X25-10S
Trimming the extend stroke by up to 10 mm on site, this AirTAC MFJ25X25-10S adjustable cylinder lets you set a precise 15 to 25 mm end position without buying a new unit or adding external stops. The riveted aluminium covers and SUS304 stainless barrel form a JIS-standard round-body mini build that is physically shorter than an ISO 6432 cylinder of the same bore and stroke, saving valuable mounting length on crowded machines.
Operating on filtered air at 0.15 to 1.0 MPa through a 1/8" port, the Ø10 mm rod delivers a 245.3 N push force at 0.5 MPa. This yields a safe working load of roughly 147 N, or about 12.5 kg of vertical lift with a 2:1 margin. The -S suffix means a piston magnet is installed for CMSG, DMSG or EMSG switches, and fixed TPU bumpers absorb the stroke-end impact.
Airtac MFJ Adjustable Mini Cylinder MFJ25X25-10S Technical Specifications
| Model | Airtac MFJ Adjustable Mini Cylinder MFJ25X25-10S |
|---|---|
| Series | MFJ JIS mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 25 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 MFJ25X25-10S
| MFJ | JIS-standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 25 | Bore size in mm. |
| ×25 | 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 MFJ25X25-10S Is Used
Changeover Dial-In
Fine-tune the 15 to 25 mm extend position during product format changes without swapping hardware, using the 10 mm adjuster to match new stop locations.
Prototype Stroke Setup
Test exact end positions on trial rigs where the final stroke is unknown, leveraging the 245.3 N push force to cycle test fixtures safely.
Compact Clamping
Clamp small parts in tight spaces thanks to the JIS-standard round body that is shorter than ISO 6432 equivalents, fitting easily between stations.
Is the Airtac MFJ Adjustable Mini Cylinder MFJ25X25-10S the Right Cylinder?
Choose the MFJ25 when you need 245.3 N of push force at 0.5 MPa, sitting neatly between the smaller MFJ20 at 157 N and the larger MFJ32 at 402.2 N. The external adjuster is ideal for trial fits and line changeovers where the exact extend position is not yet final, letting you dial in the end point within the 10 mm window.
Mounting options include LB foot, FA flange and TC trunnion (no SDB). Because the adjuster only sets the end position and the TPU bumper merely decelerates the stroke, the piston will drift if air is lost; use an external rod lock or pilot check valve to hold a suspended load.
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 MFJ25X25-10S FAQ
This double-acting cylinder has a 1/8" port and a Ø10 mm rod. It generates a push of 245.3 N and pull of 206.1 N at 0.5 MPa, a push of 343.4 N and pull of 288.5 N at 0.7 MPa, with a theoretical max of 50 kgf at 1.0 MPa.
The external adjuster shortens the extend stroke by up to 10 mm on site, giving a usable extend of 15 to 25 mm; retract remains full. The -S suffix indicates a built-in magnet for CMSG, DMSG or EMSG switches. Fixed TPU bumpers decelerate the stroke end but do not lock the load.
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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.
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Most inquiries answered within 7-8 hours.
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