Airtac MFCJ Adjustable Mini Cylinder MFCJ25X100-40
The AirTAC Airtac MFCJ Adjustable Mini Cylinder MFCJ25X100-40 is a genuine double acting, adjustable stroke + cushion JIS-standard round-body mini air cylinder with a Ø25mm bore and 100mm 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
- Stroke100 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 MFCJ25X100-40
Dial in the extend end by up to 40 mm on site with the AirTAC MFCJ25X100-40, a JIS-standard round-body mini cylinder built from a SUS304 stainless barrel and riveted aluminium covers. The external adjuster shortens the forward stroke within a 60 to 100 mm usable window, while the needle-set variable air cushion at both ends soaks up high-speed shock for smooth deceleration.
Featuring a 10 mm piston rod, M10x1.25 male thread, and a 1/8" air port, this double-acting actuator generates 245.3 N of push force at 0.5 MPa. It yields a safe working load of roughly 147 N and lifts about 12.5 kg vertically with a 2:1 margin. The riveted body is shorter than an ISO 6432 unit for the same envelope, saving mounting length, and because this SKU lacks the -S magnet, it cannot accept CMSG, DMSG, or EMSG switches.
Airtac MFCJ Adjustable Mini Cylinder MFCJ25X100-40 Technical Specifications
| Model | Airtac MFCJ Adjustable Mini Cylinder MFCJ25X100-40 |
|---|---|
| Series | MFCJ JIS mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 100 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 MFCJ25X100-40
| MFCJ | JIS-standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 25 | Bore size in mm. |
| ×100 | 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 MFCJ25X100-40 Is Used
High-Speed Changeovers
Trim the 40 mm extend window on the fly to sync part ejection at 30-800 mm/s without swapping the cylinder.
Trial Fit Positioning
Use the 245.3 N push force to dial in exact contact points on delicate assemblies, using the needle cushion to prevent impact.
Washdown Testing Rigs
Leverage the SUS304 stainless barrel and compact JIS body for prototyping fixtures in mildly corrosive environments.
Is the Airtac MFCJ Adjustable Mini Cylinder MFCJ25X100-40 the Right Cylinder?
When sizing between the available bores, the MFCJ25 provides a middle ground: it nearly doubles the 157 N push force of the MFCJ20 while remaining more compact than the 402.2 N MFCJ32. Choose this adjustable-stroke build for high-speed changeovers or shock-sensitive trial fits where both the end position and end-of-stroke cushioning need field tuning. Mounting options include LB foot, FA flange, and TC trunnion. Note that the air cushion only decelerates the piston near the stroke end; it is not a brake, so fit an external rod lock or pilot check valve if you need to hold a load on air loss.
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 MFCJ25X100-40 FAQ
This 25 mm bore double-acting cylinder features a 1/8" air port and an M10x1.25 male rod thread. 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.
This specific SKU lacks the -S magnet, so it cannot accept CMSG, DMSG, or EMSG switches. The external adjuster shortens the extend stroke by up to 40 mm on site, and the variable air cushion at both ends decelerates the piston to reduce shock.
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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