Airtac MFCJ Adjustable Mini Cylinder MFCJ25X30-10S
The AirTAC Airtac MFCJ Adjustable Mini Cylinder MFCJ25X30-10S 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 MFCJ25X30-10S
Dial in exact extend stops and soak up high-speed shock with the AirTAC MFCJ25X30-10S, a JIS-standard round-body mini cylinder built with a SUS304 stainless barrel and riveted aluminium covers. The external adjuster shortens the extend stroke by up to 10 mm on site, giving a usable 20-30 mm extend window, while the needle-set variable air cushion at both ends ensures smooth deceleration. Because it uses a riveted rolling-packed construction, the body is physically shorter than an ISO 6432 cylinder of the same bore and stroke, saving valuable mounting length.
This double-acting actuator uses a 1/8" port and a Ø10 mm piston rod with an M10x1.25 male thread. Generating 245.3 N of push force at 0.5 MPa, it provides a safe working load of about 147 N. The built-in magnet (-S) supports CMSG, DMSG, and EMSG switches for position sensing. Note that the cushion only decelerates the load near stroke end; it does not function as a brake, so fit an external rod lock or pilot check valve if you need to hold a vertical load on air loss.
Airtac MFCJ Adjustable Mini Cylinder MFCJ25X30-10S Technical Specifications
| Model | Airtac MFCJ Adjustable Mini Cylinder MFCJ25X30-10S |
|---|---|
| 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 MFCJ25X30-10S
| 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 MFCJ25X30-10S Is Used
Micro-Clamp Actuation
Provides 245.3 N of clamping force at 0.5 MPa, with a 10 mm extend adjuster to dial in the exact grip distance on delicate machined parts without crushing them.
High-Speed Diverter
Uses the variable air cushion to decelerate the 30 mm stroke rapidly at 800 mm/s, softly rejecting lightweight cartons on a packaging line while tuning out end-of-stroke bounce.
Lab Test Positioning
The SUS304 stainless barrel resists mild washdown, and the 147 N safe working load easily drives test probes into position, with the adjuster allowing precise 20-30 mm depth setting.
Is the Airtac MFCJ Adjustable Mini Cylinder MFCJ25X30-10S the Right Cylinder?
When sizing these actuators, compare the real thrust: this 25 mm bore delivers 245.3 N push at 0.5 MPa, sitting neatly between the 20 mm bore at 157 N and the 32 mm bore at 402.2 N. Choose the MFCJ25 when you need that mid-range force in a compact envelope, and step up to the 32 mm if the load demands over 400 N. The 10 mm adjustable stroke window and variable air cushion make this model ideal for high-speed changeovers and shock-sensitive trial fits where the exact end position and deceleration both need field tuning.
Mounting options include LB foot, FA flange, and TC trunnion (there is no SDB mount or back-cover option on this adjustable build). The -S magnet allows you to fit CMSG, DMSG, or EMSG sensors for precise end-of-stroke detection. Remember that the adjuster sets the end position and the needle cushion sets the deceleration rate, but neither will lock the piston mid-stroke or hold a load without air pressure.
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 MFCJ25X30-10S FAQ
This 25 mm bore cylinder features a 1/8" port and a Ø10 mm rod with an M10x1.25 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, and a theoretical maximum of 50 kgf at 1.0 MPa.
The external adjuster shortens the extend stroke by up to 10 mm, giving a usable 20-30 mm extend window, while the variable air cushion at both ends uses a needle valve to absorb high-speed shock. The -S magnet allows CMSG, DMSG, and EMSG sensors to be fitted, but the cushion only decelerates the piston and does not lock or hold the load.
Authorized Export Seller
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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