Airtac MFJ Adjustable Mini Cylinder MFJ25X175-100
The AirTAC Airtac MFJ Adjustable Mini Cylinder MFJ25X175-100 is a genuine double acting, adjustable stroke JIS-standard round-body mini air cylinder with a Ø25mm bore and 175mm 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
- Stroke175 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 MFJ25X175-100
Dial in your extend end position on the fly with the AirTAC MFJ25X175-100, 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 100 mm on site, giving a usable extend window of 75 to 175 mm without buying a new unit or adding external stops. The 1/8" port and Ø10 mm rod deliver 245.3 N of push force at 0.5 MPa, yielding a safe working load of about 147 N or roughly 12.5 kg of vertical lift with a 2:1 margin.
This riveted construction is notably shorter than an ISO 6432 cylinder for the same bore and stroke, saving valuable mounting length while the stainless barrel resists mild corrosion and washdown. Fixed TPU bumper pads decelerate the stroke end, and because this specific SKU lacks the -S magnet, it cannot accept CMSG, DMSG, or EMSG sensors. The adjuster sets the end position only; it is not a mid-stroke lock, so the piston will drift if air pressure is lost.
Airtac MFJ Adjustable Mini Cylinder MFJ25X175-100 Technical Specifications
| Model | Airtac MFJ Adjustable Mini Cylinder MFJ25X175-100 |
|---|---|
| Series | MFJ JIS mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 175 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 MFJ25X175-100
| MFJ | JIS-standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 25 | Bore size in mm. |
| ×175 | 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 MFJ25X175-100 Is Used
Changeover Stations
Swap product families and use the 100 mm extend window to set new pusher distances on the spot, handling payloads up to 147 N safely without swapping cylinders.
Trial Fit Rigs
Perfect for prototype benches where the exact extend end position is unknown; dial in the 75 to 175 mm stroke range while applying 245.3 N of test force at 0.5 MPa.
Variable-Position Stops
Replace hard mechanical stops with the external adjuster to fine-tune the end of stroke for different part sizes, relying on the 12.5 kg vertical lift capacity.
Is the Airtac MFJ Adjustable Mini Cylinder MFJ25X175-100 the Right Cylinder?
When sizing this series, compare the real thrust figures: the MFJ20 bore provides 157 N of push force at 0.5 MPa, this MFJ25 hits 245.3 N, and the larger MFJ32 delivers 402.2 N. Choose the 25 mm bore when your payload sits in that middle ground, and use the 100 mm adjuster window to nail down the exact extend position during line changeovers or trial fits where the final stroke is not yet finalised.
Mounting options include LB foot, FA flange, and TC trunnion (there is no SDB or back-cover option on this adjustable build). Remember that the fixed TPU bumpers only decelerate the stroke end—they do not lock the load. If your application must hold position on air loss, install an external rod lock or a pilot-operated check valve. To add position sensing, you must switch to the -S magnet variant, as this SKU cannot take a switch.
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 MFJ25X175-100 FAQ
This double-acting cylinder uses a 1/8" air port and a Ø10 mm piston rod. 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. Operating pressure ranges from 0.15 to 1.0 MPa.
The external adjuster shortens the extend stroke by up to 100 mm on site (usable extend 75-175 mm), while the retract stroke remains full. Fixed TPU bumper pads decelerate the stroke end but do not function as an adjustable air cushion. Note that this SKU lacks a magnet, so it cannot accept CMSG, DMSG, or EMSG sensors.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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