Airtac MFJ Adjustable Mini Cylinder MFJ25X100-50
The AirTAC Airtac MFJ Adjustable Mini Cylinder MFJ25X100-50 is a genuine double acting, adjustable stroke JIS-standard round-body mini air cylinder with a Ø25mm bore and 100mm 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
- Stroke100 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 MFJ25X100-50
Tune your extend end position on-site with the AirTAC MFJ25X100-50, a JIS-standard round-body mini cylinder built with a SUS304 stainless barrel and riveted aluminium covers. An external adjuster lets you shorten the extend stroke by up to 50 mm, giving a usable 50 to 100 mm window for trial fits and line changeovers without buying a new unit. For the same bore and stroke, this riveted body is shorter than an ISO 6432 cylinder, saving valuable mounting length.
Delivering 245.3 N of push force at 0.5 MPa (206.1 N pull), this double-acting actuator provides a safe working load of roughly 147 N. It lifts about 12.5 kg vertically with a 2:1 margin. The 1/8" port and Ø10 mm rod with an M10x1.25 thread handle standard pneumatic feeds, while fixed TPU bumper pads decelerate the stroke ends. Note this SKU lacks a magnet, so it cannot take CMSG/DMSG/EMSG sensors.
Airtac MFJ Adjustable Mini Cylinder MFJ25X100-50 Technical Specifications
| Model | Airtac MFJ Adjustable Mini Cylinder MFJ25X100-50 |
|---|---|
| Series | MFJ JIS mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 100 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 MFJ25X100-50
| MFJ | JIS-standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 25 | Bore size in mm. |
| ×100 | 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 MFJ25X100-50 Is Used
Changeover Dial-In
Shorten the extend stroke by up to 50 mm on-site to hit new product lengths during line changeovers without swapping the cylinder.
Trial Fit Assembly
Use the 245.3 N push force to press light components, adjusting the end position in the 50-100 mm window until the exact fit is proven.
Variable Position Stops
Set external stops dynamically for lab testing rigs, relying on the SUS304 barrel to resist mild washdown corrosion between runs.
Is the Airtac MFJ Adjustable Mini Cylinder MFJ25X100-50 the Right Cylinder?
When sizing this series, compare the real thrust: the MFJ25 provides 245.3 N push at 0.5 MPa, sitting between the MFJ20 at 157 N and the MFJ32 at 402.2 N. Choose the 25 mm bore when your load demands moderate force, and use the 50 mm adjuster window to dial in the exact extend position during commissioning rather than guessing upfront. Mounting options include LB foot, FA flange, and TC trunnion (no SDB). Because the piston drifts on air loss, add an external rod lock or pilot check valve if you need to hold a vertical load. For position feedback, select the -S magnet variant to enable CMSG/DMSG/EMSG switches.
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 MFJ25X100-50 FAQ
This double-acting cylinder uses a 1/8" port and delivers 245.3 N push / 206.1 N pull at 0.5 MPa, and 343.4 N push / 288.5 N pull at 0.7 MPa. The theoretical maximum force is 50 kgf at 1.0 MPa.
The external adjuster shortens the extend stroke by up to 50 mm (usable 50-100 mm); it does not add stroke. Fixed TPU bumpers decelerate the ends but do not lock the piston. This SKU has no magnet, so it cannot take sensors; use the -S variant for CMSG/DMSG/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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