Airtac MFJ Adjustable Mini Cylinder MFJ25X100-75
The AirTAC Airtac MFJ Adjustable Mini Cylinder MFJ25X100-75 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 MFJ25X100-75
Dial in your extend end-point on the fly with the AirTAC MFJ25X100-75, a JIS-standard round-body mini cylinder built from a SUS304 stainless barrel and riveted aluminium covers. An external adjuster lets you shorten the forward stroke by up to 75 mm on-site, giving a usable extend window of 25 to 100 mm without buying a new unit or adding external stops. The body is purposefully shorter than an ISO 6432 cylinder of the same bore and stroke, saving valuable mounting length while the stainless tube resists mild washdown.
This double-acting actuator pushes with 245.3 N and pulls with 206.1 N at 0.5 MPa, peaking at a theoretical 50 kgf. That translates to a safe working load of roughly 147 N, or about 12.5 kg of vertical lift with a 2:1 safety margin. It uses a 1/8" port, a 10 mm rod with an M10x1.25 male thread, fixed TPU bumper pads, and operates at 30-800 mm/s. Note this SKU lacks a magnet, so it cannot take CMSG/DMSG/EMSG sensors.
Airtac MFJ Adjustable Mini Cylinder MFJ25X100-75 Technical Specifications
| Model | Airtac MFJ Adjustable Mini Cylinder MFJ25X100-75 |
|---|---|
| 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 MFJ25X100-75
| 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 MFJ25X100-75 Is Used
Changeover Stations
Fine-tune the 25 to 100 mm extend position during product format changes, using the 245.3 N push force to seat parts without re-specifying the whole cylinder.
Trial Fit Rigs
Dial in the exact forward stop on prototype assemblies where the final stroke length is unknown, leveraging the 75 mm shortening window for rapid iteration.
Variable Position Stops
Adjust the end-of-stroke contact point on the fly for delicate pressing tasks, keeping the 12.5 kg vertical lift capability safely within a 2:1 margin.
Is the Airtac MFJ Adjustable Mini Cylinder MFJ25X100-75 the Right Cylinder?
Choose between the MFJ20, MFJ25, and MFJ32 by matching your force needs. The MFJ20 yields 157 N of push at 0.5 MPa, this MFJ25 hits 245.3 N, and the MFJ32 jumps to 402.2 N. The 75 mm adjustment window here is ideal for trial fits and line changeovers where the exact end position is not final. For mounting you can use LB foot, FA flange, or TC trunnion brackets (no SDB or back-cover option exists). Keep in mind the adjuster only sets the end position; it is not a mid-stroke lock, and the piston will drift on air loss. Use an external rod lock or pilot check valve if you must hold a 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 MFJ25X100-75 FAQ
This 25 mm bore cylinder has a 1/8" port and a 10 mm rod with an M10x1.25 thread. It pushes at 245.3 N and pulls at 206.1 N at 0.5 MPa, and pushes at 343.4 N / pulls at 288.5 N at 0.7 MPa. The theoretical max force is 50 kgf at 1.0 MPa, and operating speed is 30-800 mm/s.
The external adjuster shortens the extend stroke by up to 75 mm on-site, giving a usable 25-100 mm forward window. It relies on fixed TPU bumper pads to decelerate the stroke end, not an adjustable air cushion. The adjuster is not a lock; the piston drifts on air loss, so use an external rod lock for holding. This non-S SKU also cannot take magnetic 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.
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