Airtac MFJ Adjustable Mini Cylinder MFJ25X160-40
The AirTAC Airtac MFJ Adjustable Mini Cylinder MFJ25X160-40 is a genuine double acting, adjustable stroke JIS-standard round-body mini air cylinder with a Ø25mm bore and 160mm 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
- Stroke160 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 MFJ25X160-40
Trim the extend stroke by up to 40 mm on site with the external adjuster on this AirTAC MFJ25X160-40 mini cylinder, giving a usable 120-160 mm extend window for trial fits and line changeovers. It is a double-acting, JIS-standard round-body unit built with a SUS304 stainless barrel and riveted aluminium covers, offering a shorter mounting envelope than an ISO 6432 cylinder of the same bore and stroke.
Delivering 245.3 N push and 206.1 N pull at 0.5 MPa (343.4 N / 288.5 N at 0.7 MPa) through a 1/8" port, the bore yields a safe working load around 147 N and lifts about 12.5 kg vertically with a 2:1 margin. The retract stroke remains full, fixed TPU bumper pads decelerate the ends, and this non-magnet SKU cannot take a sensor.
Airtac MFJ Adjustable Mini Cylinder MFJ25X160-40 Technical Specifications
| Model | Airtac MFJ Adjustable Mini Cylinder MFJ25X160-40 |
|---|---|
| Series | MFJ JIS mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 160 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 MFJ25X160-40
| MFJ | JIS-standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 25 | Bore size in mm. |
| ×160 | 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 MFJ25X160-40 Is Used
Changeover Stations
Dial in the 120-160 mm extend position during product format changes, using the 40 mm adjuster to set stops precisely without swapping hardware.
Trial Fit Rigs
Safely test end-of-stroke locations for new jigs, relying on the 245.3 N push force to seat parts while you finalise the exact dwell distance.
Variable Position Stops
Act as an adjustable mechanical stop for light pressing tasks, leveraging the roughly 147 N safe working load to position components accurately.
Is the Airtac MFJ Adjustable Mini Cylinder MFJ25X160-40 the Right Cylinder?
Choose between the 25 mm bore and its neighbours by comparing 0.5 MPa push forces: the MFJ20 delivers 157 N, this MFJ25 hits 245.3 N, and the MFJ32 jumps to 402.2 N. The 40 mm adjustable window is perfect when the exact end position is not final, letting you fine-tune the extend end without buying a new cylinder or adding external stops.
Mount using LB foot, FA flange, or TC trunnion brackets (no SDB or back-cover option here). Because the piston drifts on air loss, add an external rod lock or pilot check valve if the load must be held. This SKU lacks the -S magnet, so it cannot accept CMSG, DMSG, or EMSG switches.
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 MFJ25X160-40 FAQ
This 25 mm bore cylinder uses a 1/8" port and a 10 mm rod with 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 40 mm on site (usable extend 120-160 mm); retract remains full. Fixed TPU bumpers decelerate the stroke ends but do not lock the piston. The cylinder drifts on air loss, so use an external rod lock or pilot check valve to hold a load. This non-S SKU cannot take a magnetic sensor.
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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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