Airtac MFCJ Adjustable Mini Cylinder MFCJ32X20-20S
The AirTAC Airtac MFCJ Adjustable Mini Cylinder MFCJ32X20-20S is a genuine double acting, adjustable stroke + cushion JIS-standard round-body mini air cylinder with a Ø32mm bore and 20mm 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
- Stroke20 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 MFCJ32X20-20S
Dial in exact end positions and absorb high-speed shock with the AirTAC MFCJ32X20-20S, a JIS-standard round-body mini cylinder featuring a 20mm adjustable extend window and variable air cushions at both ends. The SUS304 stainless barrel and riveted aluminium covers yield a compact footprint that is notably shorter than an equivalent ISO 6432 unit, while resisting mild washdown corrosion. Driven by a 12mm rod and 1/4" port, it delivers a robust 402.2N push force at 0.5MPa.
Because this SKU includes the -S magnet, it is fully primed for CMSG, DMSG, or EMSG position sensing. The needle cushions decelerate the piston smoothly near stroke ends but act purely as shock absorbers, never as a brake. For sizing context, this bore provides a safe working load around 241N, meaning it lifts about 20.5kg vertically with a 2:1 safety margin.
Airtac MFCJ Adjustable Mini Cylinder MFCJ32X20-20S Technical Specifications
| Model | Airtac MFCJ Adjustable Mini Cylinder MFCJ32X20-20S |
|---|---|
| Series | MFCJ JIS mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 20 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 MFCJ32X20-20S
| MFCJ | JIS-standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 32 | Bore size in mm. |
| ×20 | 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 MFCJ32X20-20S Is Used
High-Speed Probe Testing
Adjust the 20mm extend window to dial in precise sensor contact on circuit boards, while the variable air cushion prevents bounce at 800mm/s.
Carton Flap Folding
Fine-tune the push stroke on the fly for varying box sizes, relying on the 402.2N force to cleanly fold heavy cardboard flaps.
Light Part Ejection
Eject machined components safely, using the needle cushion to decelerate the rod softly and avoid launching lightweight plastic parts.
Is the Airtac MFCJ Adjustable Mini Cylinder MFCJ32X20-20S the Right Cylinder?
When choosing between the two available bores, compare this 32mm unit providing 402.2N of push force at 0.5MPa against the larger MFCJ40 which yields 628.3N. If your changeover demands less force, the smaller bores drop to 245.3N. This cylinder excels in trial-fit stations where both the stroke endpoint and the end-of-stroke shock require on-site tuning.
Mounting options include LB foot, FA flange, and TC trunnion (with no SDB or back-cover available). Remember that the air cushion only decelerates the load; it will not hold position upon air loss. To prevent drifting, integrate an external rod lock or pilot check valve. The built-in -S magnet allows seamless sensor integration.
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 MFCJ32X20-20S FAQ
This 32mm bore cylinder features a 1/4" port and a 12mm rod. It generates 402.2N push and 345.6N pull at 0.5MPa, 563N push and 483.8N pull at 0.7MPa, with a theoretical maximum of 82kgf at 1.0MPa.
The external adjuster shortens the extend stroke by up to 20mm, and the variable air cushion at both ends decelerates the piston to reduce shock. The cushion is not a brake; the cylinder will drift on air loss. The -S suffix means it has a magnet for CMSG/DMSG/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.
Related AirTAC MFCJ Cylinders
Request a Quote for Airtac MFCJ Adjustable Mini Cylinder MFCJ32X20-20S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.