Airtac MFCJ Adjustable Mini Cylinder MFCJ25X200-20S
The AirTAC Airtac MFCJ Adjustable Mini Cylinder MFCJ25X200-20S is a genuine double acting, adjustable stroke + cushion JIS-standard round-body mini air cylinder with a Ø25mm bore and 200mm 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
- Stroke200 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 MFCJ25X200-20S
Dial in exact extend positions on-site with the AirTAC MFCJ25X200-20S, a JIS-standard round-body mini cylinder featuring a 20 mm adjustable stroke window and variable air cushions at both ends. Built with a SUS304 stainless barrel and riveted aluminium covers, it delivers 245.3 N push force at 0.5 MPa via a 1/8" port. The needle cushions soak up high-speed end-of-stroke shock for smooth, quiet motion.
This double-acting actuator provides a safe working load of roughly 147 N, lifting about 12.5 kg vertically with a 2:1 margin. Its compact riveted body is shorter than an ISO 6432 cylinder for the same bore and stroke, saving mounting length. Because this SKU includes the -S magnet, it is fully ready for CMSG, DMSG, or EMSG position switches.
Airtac MFCJ Adjustable Mini Cylinder MFCJ25X200-20S Technical Specifications
| Model | Airtac MFCJ Adjustable Mini Cylinder MFCJ25X200-20S |
|---|---|
| Series | MFCJ JIS mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 200 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 MFCJ25X200-20S
| MFCJ | JIS-standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 25 | Bore size in mm. |
| ×200 | 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 MFCJ25X200-20S Is Used
Adjustable Tooling Stops
Fine-tune the extend end by up to 20 mm during machine changeovers, using the 245.3 N thrust to push parts into exact alignment without swapping hard stops.
High-Speed Diverting
Rely on the variable air cushion to decelerate the 200 mm stroke smoothly at high speed, preventing impact damage when routing lightweight packages.
Trial Fit Assemblies
Use the 1/8" ported actuator to test engagement depths on the fly, tweaking the extend position to find the perfect fit before finalizing a fixture.
Is the Airtac MFCJ Adjustable Mini Cylinder MFCJ25X200-20S the Right Cylinder?
When sizing this series, compare the real thrust outputs: the 25 mm bore offers 245.3 N push at 0.5 MPa, sitting neatly between the 157 N of an MFCJ20 and the 402.2 N of an MFCJ32. Choose the 25 mm bore when your changeover requires moderate force alongside on-site extend tuning and high-speed shock absorption via the needle cushions.
Mount this cylinder using LB foot, FA flange, or TC trunnion brackets, as there is no SDB or back-cover option. Note that the air cushion and external adjuster only decelerate the piston near stroke end—they do not lock or hold the load. If gravity or air loss causes drift, install an external rod lock or pilot check valve.
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 MFCJ25X200-20S FAQ
This double-acting cylinder uses a 1/8" air port. At 0.5 MPa it generates 245.3 N push and 206.1 N pull force. At 0.7 MPa it provides 343.4 N push and 288.5 N pull. The theoretical maximum force is 50 kgf at 1.0 MPa.
The external adjuster shortens the extend stroke by up to 20 mm on-site, giving a usable extend range of 180-200 mm, while the retract stroke remains full. The -S suffix means it has a built-in piston magnet for CMSG, DMSG, or EMSG sensors. The variable air cushion only decelerates the piston near the end; it does not hold the load.
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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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