Airtac B01-MFJ Dedicated Cylinder B01-MFJ32X80-50
The AirTAC Airtac B01-MFJ Dedicated Cylinder B01-MFJ32X80-50 is a genuine double acting, adjustable stroke 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
- Rod threadM10×1.25
- CushionFixed TPU bumper pads
About the Airtac B01-MFJ Dedicated Cylinder B01-MFJ32X80-50
The B01- prefix on this unit designates an AirTAC application-dedicated (customer-specified) variant of the MFJ32X80-50, retaining exact mechanical parity with the base model. It is a JIS-standard round-body mini cylinder built with a SUS304 stainless barrel and riveted aluminium covers, engineered for double-acting operation with a 1/4" port and an M10x1.25 male rod thread.
A key feature is the external adjuster that shortens the extend stroke by up to 50 mm on site, letting you dial in the end position from 30 to 80 mm without swapping hardware. Delivering 402.2 N of push force at 0.5 MPa, it yields a safe working load of roughly 241 N and lifts about 20.5 kg vertically with a 2:1 margin. The riveted body is shorter than an ISO 6432 cylinder for the same envelope, and fixed TPU bumpers absorb end impacts.
Airtac B01-MFJ Dedicated Cylinder B01-MFJ32X80-50 Technical Specifications
| Model | Airtac B01-MFJ Dedicated Cylinder B01-MFJ32X80-50 |
|---|---|
| Series | MFJ JIS mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 80 mm |
| Acting type | Double acting, adjustable stroke |
| 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 | Fixed TPU bumper pads |
| 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 B01-MFJ Dedicated Cylinder B01-MFJ32X80-50
| MFJ | JIS-standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 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 B01-MFJ Dedicated Cylinder B01-MFJ32X80-50 Is Used
Changeover Dial-In
Perfect for packaging lines needing rapid format changes, using the 50 mm adjuster to set new extend endpoints without machining new stop collars.
Prototype Trial Fits
Ideal for R&D rigs where the exact 402.2 N push position is unknown, letting technicians shorten the 80 mm stroke incrementally to find the optimal endpoint.
Light Pressing Stops
Handles sub-241 N safe working loads in assembly stations, providing variable mechanical stops for delicate component seating without external hardware.
Is the Airtac B01-MFJ Dedicated Cylinder B01-MFJ32X80-50 the Right Cylinder?
When sizing this 32 mm bore against the 40 mm option, note the thrust difference: the MFJ32 delivers 402.2 N push at 0.5 MPa, while the MFJ40 steps up to 628.3 N. Choose this unit for lighter pressing and positioning tasks where you need on-site adjustability during trial fits or line changeovers. The external adjuster fine-tunes the extend end by up to 50 mm but does not function as a mid-stroke lock; if the load must be held on air loss, install an external rod lock or pilot check valve. Mounting options include LB foot, FA flange, and TC trunnion (no SDB). Because this SKU lacks the -S suffix, it cannot accept CMSG, DMSG, or EMSG magnetic sensors.
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 B01-MFJ Dedicated Cylinder B01-MFJ32X80-50 FAQ
This 32 mm bore cylinder features a 1/4" port and an M10x1.25 male rod thread. It generates 402.2 N push and 345.6 N pull at 0.5 MPa, increasing to 563 N push and 483.8 N pull at 0.7 MPa, with a theoretical maximum of 82 kgf at 1.0 MPa. Operating speed ranges from 30-800 mm/s. The B01- prefix simply marks it as an application-dedicated variant of the standard MFJ32X80-50.
The external adjuster shortens the extend stroke by up to 50 mm from the 80 mm nominal length, allowing you to set the end position on site. It only affects the extend end and does not act as a mid-stroke lock. Fixed TPU bumper pads decelerate the piston near the ends. The cylinder will drift on air loss, so use an external rod lock for holding loads. Note that this non-S SKU cannot mount magnetic sensors.
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Covers non-human-caused product damage.
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