Airtac MFCJ Adjustable Mini Cylinder MFCJ32X250-20
The AirTAC Airtac MFCJ Adjustable Mini Cylinder MFCJ32X250-20 is a genuine double acting, adjustable stroke + cushion JIS-standard round-body mini air cylinder with a Ø32mm bore and 250mm 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
- Stroke250 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 MFCJ32X250-20
Tune both the extend end-point and end-of-stroke shock precisely on site with this 32 mm bore, 250 mm stroke cylinder. A 20 mm external adjuster shortens the forward stroke, while needle variable air cushions at both ends absorb high-speed impact. It delivers 402.2 N push force at 0.5 MPa, yielding a safe working load of roughly 241 N or a 20.5 kg vertical lift with a 2:1 margin.
Built as a JIS-standard round-body mini with a SUS304 stainless barrel and riveted aluminium covers, the unit is noticeably shorter than an ISO 6432 cylinder for the same footprint. It uses a 1/4" port and a 12 mm rod. Note this SKU lacks the -S magnet, so it cannot accept CMSG, DMSG or EMSG sensors.
Airtac MFCJ Adjustable Mini Cylinder MFCJ32X250-20 Technical Specifications
| Model | Airtac MFCJ Adjustable Mini Cylinder MFCJ32X250-20 |
|---|---|
| Series | MFCJ JIS mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 250 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 MFCJ32X250-20
| MFCJ | JIS-standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 32 | Bore size in mm. |
| ×250 | 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 MFCJ32X250-20 Is Used
High-Speed Tool Changeover
Dial in the exact 230-250 mm extend position and set the needle cushion to softly stop heavy machining heads during rapid automated tool changes.
Product Diverting
Adjust the stroke on the fly for mixed product sizes on a line, using the air cushion to quietly absorb the impact of fast 402.2 N routing pushes.
Pallet Stop Tuning
Fine-tune the stopping height for varying pallet loads, relying on the variable cushion to prevent bounce when decelerating moving mass.
Is the Airtac MFCJ Adjustable Mini Cylinder MFCJ32X250-20 the Right Cylinder?
Weigh this 32 mm bore against the larger MFCJ40, which steps up to 628.3 N push at 0.5 MPa. If 402.2 N is sufficient, the smaller bore saves space; if moving heavier jigs, the 40 mm version is better. Both offer the same 20 mm adjustable window and variable air cushion for high-speed changeovers.
Mounting uses LB foot, FA flange or TC trunnion brackets. The cushion only decelerates the piston near the end of travel and the adjuster sets the forward position—neither acts as a lock. The piston will drift on air loss, so fit an external rod lock or pilot check valve to hold a suspended load.
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 MFCJ32X250-20 FAQ
This 32 mm bore cylinder has a 1/4" port and a 12 mm rod. 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 maximum of 82 kgf at 1.0 MPa.
No, this specific SKU does not include the -S magnet, so it cannot accept CMSG, DMSG or EMSG switches. You must select the -S variant for sensing. The 20 mm adjuster only shortens the extend stroke, and the variable air cushion decelerates motion without locking the load.
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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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