Airtac MFCJ Adjustable Mini Cylinder MFCJ32X80-20S
The AirTAC Airtac MFCJ Adjustable Mini Cylinder MFCJ32X80-20S is a genuine double acting, adjustable stroke + cushion JIS-standard round-body mini air cylinder with a Ø32mm bore and 80mm 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
- Stroke80 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 MFCJ32X80-20S
Trim the extend stroke by up to 20 mm on site with the AirTAC MFCJ32X80-20S, a JIS-standard round-body mini cylinder built for high-speed changeovers. A needle-variable air cushion at both ends soaks up end-of-stroke shock, ensuring smooth deceleration. The SUS304 stainless barrel and riveted aluminium covers resist mild corrosion and washdown, while the body is deliberately shorter than an ISO 6432 cylinder of the same bore and stroke, saving valuable mounting length.
Driven by a 32 mm bore and a 1/4" port, this double-acting actuator generates 402.2 N of push force at 0.5 MPa. In practical terms, this translates to a safe working load of roughly 241 N, or lifting about 20.5 kg vertically with a 2:1 safety margin. The -S suffix indicates a built-in piston magnet, enabling CMSG, DMSG, or EMSG reed or electronic switches for position sensing.
Airtac MFCJ Adjustable Mini Cylinder MFCJ32X80-20S Technical Specifications
| Model | Airtac MFCJ Adjustable Mini Cylinder MFCJ32X80-20S |
|---|---|
| Series | MFCJ JIS mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 80 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 MFCJ32X80-20S
| MFCJ | JIS-standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 32 | Bore size in mm. |
| ×80 | 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 MFCJ32X80-20S Is Used
High-Speed Changeover
Dial in the exact 60-80 mm extend position on the fly and set the needle cushion to absorb shock during rapid product format changes.
Shock-Sensitive Trial Fits
Perfect for prototype testing where the 241 N safe working load must stop smoothly without jarring delicate components at high speed.
Washdown Positioning
The SUS304 stainless barrel withstands mild washdown while the built-in magnet confirms stroke end for automated assembly tasks.
Is the Airtac MFCJ Adjustable Mini Cylinder MFCJ32X80-20S the Right Cylinder?
When sizing this series, compare both available bores using 0.5 MPa figures: the MFCJ32 provides 402.2 N of push force, whereas stepping up to the MFCJ40 yields 628.3 N for heavier loads. Choose this 32 mm bore when your application requires moderate force combined with precise on-site stroke tuning and high-speed cushioning. The external adjuster shortens the extend end within the 20 mm window, making it ideal for trial fits where the exact end position and shock absorption both need refinement.
Mounting options include LB foot, FA flange, and TC trunnion (no SDB or back-cover code is available on this adjustable build). Note that the air cushion and adjuster only decelerate the piston near the stroke end; they do not function as a lock. If the load must be held during air loss or valve centring, install an external rod lock or pilot-operated 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 MFCJ32X80-20S FAQ
This 32 mm bore cylinder features a 1/4" port and a 12 mm rod. At 0.5 MPa it provides 402.2 N push and 345.6 N pull force. At 0.7 MPa it delivers 563 N push and 483.8 N pull. The theoretical maximum force is 82 kgf at 1.0 MPa.
The external adjuster shortens the extend stroke by up to 20 mm on site, giving a usable extend range of 60-80 mm, while the retract stroke remains full. A variable air cushion at both ends decelerates the piston near stroke end for smooth high-speed motion, but it is not a lock. The -S magnet allows CMSG, DMSG, or EMSG sensors to track position.
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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