Airtac MFCJ Adjustable Mini Cylinder MFCJ32X125-40S
The AirTAC Airtac MFCJ Adjustable Mini Cylinder MFCJ32X125-40S 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 MFCJ32X125-40S
Tune both the extend reach and the end-of-stroke shock on site with this double-acting, adjustable-stroke mini cylinder. The external adjuster shortens the extend end by up to 40 mm (usable 85-125 mm), while the needle variable air cushion at both ends soaks up high-speed impact. A 1/4" port and Ø12 mm rod handle a 402.2 N push at 0.5 MPa.
Built as a JIS-standard round-body unit with a SUS304 stainless barrel and riveted aluminium covers, it is shorter than an ISO 6432 cylinder for the same bore and stroke. The -S suffix adds a piston magnet for CMSG, DMSG, or EMSG switches. For a safe working load, expect around 241 N, lifting about 20.5 kg vertically with a 2:1 margin.
Airtac MFCJ Adjustable Mini Cylinder MFCJ32X125-40S Technical Specifications
| Model | Airtac MFCJ Adjustable Mini Cylinder MFCJ32X125-40S |
|---|---|
| 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 MFCJ32X125-40S
| 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 MFCJ32X125-40S Is Used
Changeover Dial-In
Dial in the exact 85-125 mm extend position during format changeovers while the needle cushion absorbs the high-speed stop.
Shock-Sensitive Trial Fits
Test extend endpoints on fragile assemblies without re machining hard stops, relying on the cushion to soften the impact.
Vertical Lift Jig
Lift approximately 20.5 kg jigs vertically using the 0.5 MPa push force, adjusting the stroke down 40 mm as needed.
Is the Airtac MFCJ Adjustable Mini Cylinder MFCJ32X125-40S the Right Cylinder?
Weighing MFCJ32 against MFCJ40 comes down to force needs: this 32 mm bore gives 402.2 N push at 0.5 MPa, while the 40 mm bore delivers 628.3 N. If your changeover demands less than 245.3 N, a smaller 25 mm bore would suffice, but the 32 mm hits a sweet spot for moderate loads. The 40 mm adjustable window is ideal for trial fits where the exact extend position and deceleration ramp both need tuning. Mount via LB foot, FA flange, or TC trunnion (no SDB). Remember that the air cushion only decelerates the piston; it does not lock the load. To hold position on air loss, fit an external rod lock or pilot check valve.
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 MFCJ32X125-40S FAQ
This 32 mm bore cylinder uses a 1/4" port and a Ø12 mm rod with an M10x1.25 male thread. It generates 402.2 N push and 345.6 N pull at 0.5 MPa, 563 N push and 483.8 N pull at 0.7 MPa, with a theoretical max of 82 kgf at 1.0 MPa.
The external adjuster shortens the extend stroke by up to 40 mm on site; retract remains full. The -S suffix means a magnet is built in for CMSG, DMSG, or EMSG sensors. The variable air cushion only decelerates near stroke end and does not 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.
Related AirTAC MFCJ Cylinders
Request a Quote for Airtac MFCJ Adjustable Mini Cylinder MFCJ32X125-40S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.