Airtac MFCJ Adjustable Mini Cylinder MFCJ25X100-30
The AirTAC Airtac MFCJ Adjustable Mini Cylinder MFCJ25X100-30 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 MFCJ25X100-30
Dial in exact extend lengths from 70 to 100 mm on-site with the AirTAC MFCJ25X100-30, a JIS-standard round-body mini cylinder. The external adjuster shortens the extend stroke by up to 30 mm, while a needle-set variable air cushion at both ends soaks up high-speed shock.
Built with a SUS304 stainless barrel and riveted aluminium covers, this double-acting actuator is shorter than an ISO 6432 cylinder for the same bore and stroke. It pushes 245.3 N at 0.5 MPa via a 1/8" port, yielding a safe working load of about 147 N. Note this SKU lacks a magnet (-S) and cannot take a sensor.
Airtac MFCJ Adjustable Mini Cylinder MFCJ25X100-30 Technical Specifications
| Model | Airtac MFCJ Adjustable Mini Cylinder MFCJ25X100-30 |
|---|---|
| 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 MFCJ25X100-30
| 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 MFCJ25X100-30 Is Used
Adjustable Tooling Stops
Fine-tune the 70-100 mm extend position on trial fixtures without machining new spacers, using the 245.3 N push force to seat parts firmly.
High-Speed Diverting
Variable air cushions absorb the shock of rapid 30-800 mm/s routing strokes, letting the cylinder divert lightweight cartons smoothly without slamming.
Dynamic Pallet Squaring
Tune the extend stroke by up to 30 mm on the fly to square varying pallet widths, relying on the 147 N safe working load to nudge loads gently.
Is the Airtac MFCJ Adjustable Mini Cylinder MFCJ25X100-30 the Right Cylinder?
When sizing, compare both ways: the MFCJ20 delivers 157 N at 0.5 MPa, while the MFCJ32 jumps to 402.2 N. This 25 mm bore hits a 245.3 N sweet spot for medium clamping. Choose the adjustable stroke plus variable air cushion when you need to tune end-of-stroke shock during high-speed changeovers.
The cushion only decelerates near the stroke end—it is not a lock. The piston will drift on air loss, so add an external rod lock or pilot check valve to hold a load. Mount via LB foot, FA flange or TC trunnion (no SDB). For position sensing, switch to the -S magnet variant to use CMSG, DMSG or EMSG switches.
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 MFCJ25X100-30 FAQ
This 25 mm bore cylinder has a 1/8" port and a 10 mm rod with M10x1.25 thread. It pushes 245.3 N and pulls 206.1 N at 0.5 MPa. At 0.7 MPa it pushes 343.4 N and pulls 288.5 N. The theoretical max is 50 kgf at 1.0 MPa, and the speed range is 30-800 mm/s.
No. The 30 mm adjuster only sets the extend end position (70-100 mm), and the variable air cushion only decelerates near the end—it is not a brake. For position sensing, this SKU lacks a magnet; you must use the -S variant to mount CMSG, DMSG or EMSG switches.
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1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
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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