Airtac MFCJ Adjustable Mini Cylinder MFCJ32X125-20
The AirTAC Airtac MFCJ Adjustable Mini Cylinder MFCJ32X125-20 is a genuine double acting, adjustable stroke + cushion JIS-standard round-body mini air cylinder with a Ø32mm bore and 125mm stroke, 1/4" 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.
- BoreØ32 mm
- Stroke125 mm
- Port size1/4"
- 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 MFCJ32X125-20
Tune both travel and end-of-stroke shock on site with this 32 mm bore, 125 mm stroke cylinder. An external adjuster lets you shorten the extend stroke by up to 20 mm (usable range 105-125 mm), while the needle variable air cushion at both ends soaks up high-speed impact for smooth deceleration.
Built as a JIS-standard round-body mini with a SUS304 stainless barrel and riveted aluminium covers, the body is deliberately shorter than an ISO 6432 cylinder for the same stroke, saving valuable mounting length. Delivering 402.2 N push at 0.5 MPa through a 1/4" port, it yields a safe working load of about 241 N or roughly 20.5 kg vertical lift with a 2:1 margin. Note this SKU lacks the -S magnet, so it cannot accept CMSG/DMSG/EMSG sensors.
Airtac MFCJ Adjustable Mini Cylinder MFCJ32X125-20 Technical Specifications
| Model | Airtac MFCJ Adjustable Mini Cylinder MFCJ32X125-20 |
|---|---|
| Series | MFCJ JIS mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 125 mm |
| Acting type | Double acting, adjustable stroke + cushion |
| Port size | 1/4" |
| 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 (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | 484 N |
| Max (@1.0 MPa) | 82 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 MFCJ32X125-20
| MFCJ | JIS-standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 32 | Bore size in mm. |
| ×125 | 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 MFCJ32X125-20 Is Used
High-Speed Tool Trial Fits
Dial in the extend stroke within the 20 mm window during changeovers while the variable air cushion absorbs end-of-stroke shock on a 402.2 N push force.
Package Divert Adjustment
Fine-tune the actuator reach on the fly for varying carton sizes without risking hard impacts, relying on the 1/4" port and 32 mm bore for rapid cycling.
Light Lift Positioning
Lift and place loads up to 20.5 kg vertically with a 2:1 safety margin, adjusting the extend end precisely to clear obstructions before the cushion decelerates the load.
Is the Airtac MFCJ Adjustable Mini Cylinder MFCJ32X125-20 the Right Cylinder?
When sizing this adjustable-stroke series, compare the real thrust: the 32 mm bore gives 402.2 N push at 0.5 MPa, whereas stepping up to the MFCJ40 provides 628.3 N, and dropping to an MFCJ25 offers 245.3 N. Choose the 32 mm bore when your changeover requires moderate force plus the ability to dial in the exact extend position within a 20 mm window without swapping cylinders.
The variable air cushion is essential for high-speed trial fits where shock could damage the tooling, but remember the cushion only decelerates the piston near the end of travel—it is not a brake. If the load must hold position on air loss, fit an external rod lock or pilot check valve. For mounting, use LB foot, FA flange or TC trunnion brackets (there is no SDB or back-cover option here), and because this specific SKU has no -S magnet, position sensing is unavailable.
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 MFCJ32X125-20 FAQ
This 32 mm bore cylinder features a 1/4" port and a 12 mm rod. The double-acting thrust is 402.2 N push and 345.6 N pull at 0.5 MPa, or 563 N push and 483.8 N pull at 0.7 MPa. The theoretical maximum force is 82 kgf at 1.0 MPa.
The external adjuster shortens the extend stroke by up to 20 mm (usable range 105-125 mm), and the needle variable air cushion decelerates the piston at both ends. This specific SKU does not have the -S magnet, so it cannot accept CMSG, DMSG or EMSG sensors.
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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.
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Most inquiries answered within 7-8 hours.
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