Airtac MFJ Adjustable Mini Cylinder MFJ25X150-100S
The AirTAC Airtac MFJ Adjustable Mini Cylinder MFJ25X150-100S is a genuine double acting, adjustable stroke JIS-standard round-body mini air cylinder with a Ø25mm bore and 150mm 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
- Stroke150 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 MFJ25X150-100S
Dial in your extend position on the factory floor with the AirTAC MFJ25X150-100S, a JIS-standard round-body mini cylinder built from a SUS304 stainless barrel and riveted aluminium covers. An external adjuster lets you shorten the extend stroke by up to 100 mm on-site, giving a usable 50-150 mm window for trial fits without buying a new unit or adding external stops. Because it is a riveted round-body design, the overall length is shorter than an ISO 6432 cylinder for the same 25 mm bore and 150 mm stroke, saving valuable mounting space.
This double-acting actuator pushes with 245.3 N and pulls with 206.1 N at 0.5 MPa, featuring a 10 mm rod with an M10x1.25 male thread and a 1/8" port. The -S suffix means a piston magnet is built-in, ready for CMSG, DMSG or EMSG switches. Fixed TPU bumper pads decelerate the stroke ends. For a safe working load, expect around 147 N (about 60% of the 0.5 MPa push force), or roughly 12.5 kg vertical lift with a 2:1 margin.
Airtac MFJ Adjustable Mini Cylinder MFJ25X150-100S Technical Specifications
| Model | Airtac MFJ Adjustable Mini Cylinder MFJ25X150-100S |
|---|---|
| Series | MFJ JIS mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 150 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 MFJ25X150-100S
| MFJ | JIS-standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 25 | Bore size in mm. |
| ×150 | 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 MFJ25X150-100S Is Used
Changeover Stations
Dial in the extend stroke by up to 100 mm during product line changeovers, hitting new end positions instantly without swapping cylinders or adding external stops.
Trial Fit Rigs
Perfect for prototype tooling where the exact 50-150 mm extend point is unknown, letting technicians fine-tune the 245.3 N push force contact point on the fly.
Variable Position Stops
Use the adjuster to set precise mechanical endpoints for light pressing tasks, leveraging the 12.5 kg vertical lift capacity while avoiding the need for custom spacers.
Is the Airtac MFJ Adjustable Mini Cylinder MFJ25X150-100S the Right Cylinder?
Choose between the MFJ20, MFJ25, and MFJ32 by matching your force needs. The MFJ20 delivers 157 N push at 0.5 MPa, this MFJ25 provides 245.3 N, and the MFJ32 jumps to 402.2 N. Pick the MFJ25 when you need moderate force plus maximum flexibility—the 100 mm adjustable window is perfect for changeover stations where the exact end position is not finalised. Mounting options include LB foot, FA flange, and TC trunnion (no SDB or back-cover here).
Remember that the external adjuster only sets the extend end position; it is not a mid-stroke lock. A plain cylinder does not hold its load on air loss, so the piston will drift if valve pressure drops. To hold a load securely, add an external rod lock or a pilot-operated check valve. The -S magnet enables CMSG/DMSG/EMSG sensors; without it, a SKU cannot take a sensor.
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 MFJ25X150-100S FAQ
This 25 mm bore double-acting cylinder has a 1/8" port and generates a push of 245.3 N and pull of 206.1 N at 0.5 MPa. At 0.7 MPa it pushes 343.4 N and pulls 288.5 N. The theoretical maximum force is 50 kgf at 1.0 MPa. It operates at 30-800 mm/s.
The external adjuster shortens the extend stroke by up to 100 mm on-site, giving a usable 50-150 mm window, while retract remains full. It sets the end position but is not a mid-stroke lock. The -S suffix means a piston magnet is built-in for CMSG, DMSG or EMSG sensors; fixed TPU bumpers decelerate the stroke ends.
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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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