Airtac MFJ Adjustable Mini Cylinder MFJ25X150-30
The AirTAC Airtac MFJ Adjustable Mini Cylinder MFJ25X150-30 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 MFJ25X150-30
Trim the extend end by up to 30 mm right at the fixture with the AirTAC MFJ25X150-30, a double-acting JIS-standard round-body mini cylinder. The external adjuster lets you dial the usable extend stroke down from 150 mm to 120 mm without buying a new unit or adding external stops. A 1/8" port feeds the 25 mm bore, yielding 245.3 N of push force at 0.5 MPa.
The riveted SUS304 stainless barrel and aluminium covers resist mild washdown while keeping the total envelope shorter than a comparable ISO 6432 cylinder. Fixed TPU bumper pads absorb the end-of-stroke impact across the 30-800 mm/s speed range. This non-magnet SKU cannot host a position sensor; add the -S variant if you need CMSG, DMSG or EMSG switches.
Airtac MFJ Adjustable Mini Cylinder MFJ25X150-30 Technical Specifications
| Model | Airtac MFJ Adjustable Mini Cylinder MFJ25X150-30 |
|---|---|
| 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 MFJ25X150-30
| 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 MFJ25X150-30 Is Used
Changeover Dial-In
Fine-tune the extend position up to 30 mm during product family changeovers, avoiding the need to physically swap out the entire cylinder for a new stroke length.
Prototype Trial Fits
Dial in the exact 120 to 150 mm extension on R&D test rigs, letting engineers find the optimal end position for a 245.3 N push force without machining new stops.
Variable Position Stops
Adjust the extend endpoint on the fly for light clamping tasks, using the bumper pads to cushion the final impact while maintaining a compact JIS footprint.
Is the Airtac MFJ Adjustable Mini Cylinder MFJ25X150-30 the Right Cylinder?
Pick the MFJ25 when 245.3 N of push at 0.5 MPa hits your target, as the smaller MFJ20 only delivers 157 N. If your fixture needs more power, the MFJ32 jumps to 402.2 N. The 30 mm adjustable window shines during line changeovers or trial fits where the exact extend position is not yet final. For vertical loads, expect to lift about 12.5 kg with a 2:1 safety margin, equating to a safe working load near 147 N.
Mount using LB foot, FA flange or TC trunnion brackets (SDB and back-cover options are absent on this build). Remember that the adjuster only sets the end position; it is not a mid-stroke lock. The piston will drift if air pressure drops, so install an external rod lock or pilot check valve to hold a suspended load safely.
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 MFJ25X150-30 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 maximum of 50 kgf at 1.0 MPa.
The external adjuster shortens the extend stroke by up to 30 mm on-site, giving a usable extend range of 120 to 150 mm. End-of-stroke deceleration is handled by fixed TPU bumper pads, not an adjustable air cushion. Also, this specific SKU lacks a magnet, so it cannot accept CMSG, DMSG or EMSG sensors.
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.
Request a Quote for Airtac MFJ Adjustable Mini Cylinder MFJ25X150-30
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.