Airtac MFJ Adjustable Mini Cylinder MFJ25X160-30S
The AirTAC Airtac MFJ Adjustable Mini Cylinder MFJ25X160-30S 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 MFJ25X160-30S
Dial in your extend end position on the fly with the AirTAC MFJ25X160-30S, 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 30 mm on site, giving a usable extend range of 130 to 160 mm without buying a new unit or adding external stops. The riveted construction is shorter overall than a comparable ISO 6432 cylinder, saving valuable mounting length while the stainless body resists mild corrosion and washdown.
Driven by a 10 mm piston rod and a 1/8" air port, this double-acting actuator delivers 245.3 N of push force and 206.1 N of pull force at 0.5 MPa. The -S suffix means a piston magnet is already fitted, so you can mount CMSG, DMSG, or EMSG switches directly for position sensing. Fixed TPU bumper pads decelerate the stroke ends, and the cylinder handles speeds of 30 to 800 mm/s across a 0.15 to 1.0 MPa operating range.
Airtac MFJ Adjustable Mini Cylinder MFJ25X160-30S Technical Specifications
| Model | Airtac MFJ Adjustable Mini Cylinder MFJ25X160-30S |
|---|---|
| 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 MFJ25X160-30S
| 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 MFJ25X160-30S Is Used
Changeover Stations
Fine-tune the extend stroke by up to 30 mm during product changeovers, hitting new stop positions without swapping out the entire cylinder.
Trial Fit Rigs
Use the 130 to 160 mm adjustable window to test multiple extend endpoints on prototype assemblies before locking in a final stroke length.
Variable Position Stops
Lift and place 12.5 kg fixtures with 245.3 N of thrust while making quick on-site adjustments to the end position via the external rod.
Is the Airtac MFJ Adjustable Mini Cylinder MFJ25X160-30S the Right Cylinder?
When sizing this adjustable actuator, compare the real thrust figures: the MFJ20 provides 157 N of push at 0.5 MPa, this MFJ25 hits 245.3 N, and the larger MFJ32 offers 402.2 N. For this 25 mm bore, a safe working load is roughly 147 N (about 60 percent of the 0.5 MPa push figure), meaning it can lift about 12.5 kg vertically with a 2:1 safety margin. Choose the MFJ25 when you need that mid-range force for trial fits or line changeovers where the exact end position is not yet final.
Remember that the external adjuster only sets the extend end point and does not act as a mid-stroke lock. The cylinder will drift and cannot hold a load if air pressure drops, so add an external rod lock or pilot-operated check valve for suspended loads. For mounting, select from LB foot, FA flange, or TC trunnion brackets, and pair the built-in magnet with your preferred CMSG, DMSG, or EMSG sensor.
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 MFJ25X160-30S FAQ
This double-acting cylinder has a 25 mm bore, a 10 mm rod, and a 1/8" port. It delivers 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 max of 50 kgf at 1.0 MPa. The base stroke is 160 mm, but the external adjuster can shorten the extend end by up to 30 mm.
The external adjuster mechanically limits the extend stroke, shortening it by up to 30 mm so you can set the end position on site. Fixed TPU bumper pads decelerate the piston at the stroke ends. The -S suffix indicates a built-in piston magnet, allowing you to mount CMSG, DMSG, or EMSG sensors for position feedback.
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Genuine AirTAC parts produced by AirTAC factory.
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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