Airtac MFCJ Adjustable Mini Cylinder MFCJ25X30-30S
The AirTAC Airtac MFCJ Adjustable Mini Cylinder MFCJ25X30-30S is a genuine double acting, adjustable stroke + cushion JIS-standard round-body mini air cylinder with a Ø25mm bore and 30mm 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
- Stroke30 mm
- Port size1/8"
- Acting typeDouble acting, adjustable stroke + cushion
- Rod threadM10×1.25
- CushionVariable air cushion, both ends
- 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 MFCJ Adjustable Mini Cylinder MFCJ25X30-30S
Tune both the extend end-point and the end-of-stroke deceleration on-site with this JIS-standard round-body mini cylinder. The external adjuster shortens the extend stroke by up to 30 mm, while the needle-set variable air cushion at both ends soaks up high-speed shock for smooth, quiet motion. A built-in piston magnet (-S) supports CMSG, DMSG, and EMSG switches for position sensing.
Built with a SUS304 stainless steel barrel and riveted aluminium covers, the riveted rolling-packed construction is shorter than an ISO 6432 cylinder for the same bore and stroke, saving valuable mounting length. Delivering 245.3 N push force at 0.5 MPa on a 1/8" port, it provides a safe working load of about 147 N. It does not hold position on air loss; use an external rod lock or pilot check valve for suspended loads.
Airtac MFCJ Adjustable Mini Cylinder MFCJ25X30-30S Technical Specifications
| Model | Airtac MFCJ Adjustable Mini Cylinder MFCJ25X30-30S |
|---|---|
| Series | MFCJ JIS mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 30 mm |
| Acting type | Double acting, adjustable stroke + cushion |
| 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 | Variable air cushion, both ends |
| 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 MFCJ Adjustable Mini Cylinder MFCJ25X30-30S
| MFCJ | JIS-standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 25 | Bore size in mm. |
| ×30 | 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 MFCJ Adjustable Mini Cylinder MFCJ25X30-30S Is Used
Actuator Trial Fitting
Dial in the extend stroke by up to 30 mm during prototype changeovers, using the 245.3 N push force to seat components without overstressing fixtures.
High-Speed Diverter
Absorb end-of-stroke shock on rapid routing gates with the variable air cushion, handling light packages safely within the 147 N working load.
Adjustable Sealing Head
Fine-tune the crush distance on the fly for varying carton heights, relying on the needle cushion to prevent harsh impacts at 800 mm/s.
Is the Airtac MFCJ Adjustable Mini Cylinder MFCJ25X30-30S the Right Cylinder?
When sizing this adjustable-stroke series, compare the real thrust figures: the MFCJ25 provides 245.3 N push at 0.5 MPa, stepping up to 402.2 N in the MFCJ32, or down to 157 N in the MFCJ20. Choose the 25 mm bore when your changeover task requires a safe working load near 147 N or a vertical lift of about 12.5 kg with a 2:1 margin.
The 30 mm adjustable window is ideal for trial fits where the exact extend position and end-of-stroke shock both need field tuning. Mount via LB foot, FA flange, or TC trunnion (no SDB or back-cover here). The -S magnet enables electronic or reed sensors, and the cushion strictly decelerates the piston—it is never a mid-stroke lock or brake.
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 MFCJ Adjustable Mini Cylinder MFCJ25X30-30S FAQ
This 25 mm bore cylinder features a 1/8" air port and a Ø10 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 30 mm, while the needle-set variable air cushion decelerates the piston at both ends for smooth stops. The -S suffix means it has a built-in magnet for CMSG, DMSG, or EMSG switches; it does not lock or hold the load on air loss.
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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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