Airtac MFJ Adjustable Mini Cylinder MFJ25X150-75
The AirTAC Airtac MFJ Adjustable Mini Cylinder MFJ25X150-75 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 MFJ25X150-75
Dial in your extend end-point on the fly with the AirTAC MFJ25X150-75, 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 75 mm on site, yielding a usable extend range of 75 to 150 mm without buying a new unit or adding external stops. The retract stroke remains full length. Because it uses a riveted round-body construction rather than a tie-rod or extruded profile, the overall envelope is shorter than an ISO 6432 cylinder for the same bore and stroke, saving valuable mounting length.
In the 25 mm bore class, this double-acting actuator delivers a push force of 245.3 N and a pull force of 206.1 N at 0.5 MPa (rising to 343.4 N push and 288.5 N pull at 0.7 MPa). That translates to a safe working load of roughly 147 N, letting you lift about 12.5 kg vertically with a 2:1 safety margin. The 1/8" port and M10x1.25 male rod thread simplify integration. It relies on fixed TPU bumper pads to decelerate the stroke end, and because this specific SKU lacks the -S magnet option, it cannot accept CMSG, DMSG, or EMSG magnetic switches.
Airtac MFJ Adjustable Mini Cylinder MFJ25X150-75 Technical Specifications
| Model | Airtac MFJ Adjustable Mini Cylinder MFJ25X150-75 |
|---|---|
| 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 MFJ25X150-75
| 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 MFJ25X150-75 Is Used
Changeover Stations
Fine-tune the 75 to 150 mm extend position during format changeovers on packaging lines, using the 245.3 N push force to push product guides without swapping cylinders.
Trial Fit Rigs
Dial in the exact extend stop on prototype assembly rigs where the final stroke length is unknown, leveraging the 75 mm adjustment window to test multiple end points.
Variable-Position Stops
Act as an adjustable end-stop for light press operations, safely handling a 12.5 kg vertical load while the fixed TPU bumpers absorb the final impact energy.
Is the Airtac MFJ Adjustable Mini Cylinder MFJ25X150-75 the Right Cylinder?
When sizing this adjustable actuator, compare the real 0.5 MPa push figures: the MFJ20 yields 157 N, this MFJ25 provides 245.3 N, and the larger MFJ32 outputs 402.2 N. The 75 mm adjustment window is ideal for trial fits, line changeovers, or applications where the final end position is not yet locked down. For mounting, choose from LB foot, FA flange, or TC trunnion brackets (SDB and back-cover mounts are not available on this build). Keep in mind that a plain cylinder does not hold its load on air loss or when the valve is centred—the piston will drift. The bumper only decelerates the stroke end; for a locked load, install an external rod lock or a 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 MFJ25X150-75 FAQ
This 25 mm bore double-acting cylinder has a 1/8" port and an M10x1.25 male rod thread. At 0.5 MPa it pushes 245.3 N and pulls 206.1 N. 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.
The external adjuster shortens the extend stroke by up to 75 mm on site, giving a usable extend range of 75 to 150 mm; the retract stroke remains full. It uses fixed TPU bumper pads to decelerate, not an adjustable air cushion. This SKU has no magnet (-S), so it cannot take CMSG/DMSG/EMSG switches. It does not hold position on air loss—use an external rod lock for that.
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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