Airtac MFCJ Adjustable Mini Cylinder MFCJ32X125-20S
The AirTAC Airtac MFCJ Adjustable Mini Cylinder MFCJ32X125-20S 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 MFCJ32X125-20S
Trimming the extend stroke by up to 20 mm on-site, this double-acting MFCJ32X125-20S cylinder delivers a usable 105-125 mm forward movement. It pairs that external adjuster with a variable air cushion at both ends, soaking up high-speed end-of-travel shock for smooth, quiet operation.
Built as a JIS-standard round-body mini with a SUS304 stainless barrel and riveted aluminium covers, the unit is shorter than an ISO 6432 cylinder of the same bore and stroke, saving valuable mounting length. The 32 mm bore uses a 1/4" port and a 12 mm rod, generating 402.2 N of push force at 0.5 MPa. The integrated -S magnet supports CMSG, DMSG, and EMSG sensors for position feedback.
Airtac MFCJ Adjustable Mini Cylinder MFCJ32X125-20S Technical Specifications
| Model | Airtac MFCJ Adjustable Mini Cylinder MFCJ32X125-20S |
|---|---|
| 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 MFCJ32X125-20S
| 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 MFCJ32X125-20S Is Used
High-Speed Component Pressing
Dial in the exact 105-125 mm extend depth on the fly while the variable air cushion absorbs the 402.2 N impact, ensuring delicate parts are not crushed during rapid cycling.
Adjustable Transfer Diverter
Fine-tune the stroke window by 20 mm to accommodate varying package sizes on a line, relying on the needle cushion to halt the rod smoothly at 800 mm/s.
Light-Load Vertical Lift
Lifts about 20.5 kg vertically with a 2:1 safety margin at 0.5 MPa, using the -S magnet to confirm the raised position before releasing the load.
Is the Airtac MFCJ Adjustable Mini Cylinder MFCJ32X125-20S the Right Cylinder?
When sizing this adjustable variant, compare both bores: the 32 mm bore provides 402.2 N of push force at 0.5 MPa, while the larger MFCJ40 delivers 628.3 N. For lighter duties, an MFCJ25 offers 245.3 N. This 32 mm bore is ideal for high-speed changeovers where you must tune both the exact extend position and the end-of-stroke deceleration.
The external adjuster sets the forward end point but does not lock the piston mid-stroke. Because a plain cylinder drifts on air loss, use an external rod lock or pilot check valve to hold a suspended load. Mount via LB foot, FA flange, or TC trunnion (no SDB), and leverage the -S magnet for electronic or reed 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 MFCJ32X125-20S FAQ
This 32 mm bore cylinder features a 1/4" port and a 12 mm rod. It generates a push force of 402.2 N and a pull force of 345.6 N at 0.5 MPa. At 0.7 MPa, push is 563 N and pull is 483.8 N. The theoretical maximum force is 82 kgf at 1.0 MPa.
The external adjuster shortens the extend stroke by up to 20 mm, giving a usable range of 105-125 mm. The needle-set variable air cushion at both ends decelerates the piston near stroke end to absorb high-speed shock. The -S suffix means it has a built-in magnet for CMSG, DMSG, or EMSG sensors.
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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