Airtac B52-MF Copper-Free Stainless Steel Mini Cylinder B52-MF20X30SU
The AirTAC Airtac B52-MF Copper-Free Stainless Steel Mini Cylinder B52-MF20X30SU is a genuine double acting JIS-standard round-body mini air cylinder with a Ø20mm bore and 30mm stroke, 1/8" 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.
- BoreØ20 mm
- Stroke30 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionFixed TPU bumper pads
- 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 B52-MF Copper-Free Stainless Steel Mini Cylinder B52-MF20X30SU
The B52-MF20X30SU is the copper-free build of AirTAC's JIS-standard round-body mini cylinder, delivering 157 N of push force at 0.5 MPa from a compact 20 mm bore. Its SUS304 stainless steel barrel and riveted aluminium covers resist mild corrosion, while the two-way oil-retaining piston seal keeps the rod moving smoothly over a long service life.
Because it follows the JIS standard, this cylinder body is shorter than an ISO 6432 unit with the same bore and stroke - a real advantage when mounting space is tight. The 'B52-' prefix marks the copper-free (copper-prohibited) version, suitable for lines where copper alloys are not allowed, such as ammonia systems or certain battery and electronics plants. For a typical 30 mm stroke application, plan for a safe working load of about 94 N at 0.5 MPa, which is roughly 60% of the rated force and leaves a practical safety margin.
Airtac B52-MF Copper-Free Stainless Steel Mini Cylinder B52-MF20X30SU Technical Specifications
| Model | Airtac B52-MF Copper-Free Stainless Steel Mini Cylinder B52-MF20X30SU |
|---|---|
| Series | MF JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 30 mm |
| Acting type | Double acting |
| Port size | 1/8" |
| Rod thread | M8×1.25 |
| 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 (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 132 N |
| 0.7 MPa | 220 N | 185 N |
| Max (@1.0 MPa) | 32 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac B52-MF Copper-Free Stainless Steel Mini Cylinder B52-MF20X30SU
| MF | JIS-standard round-body mini cylinder (double-acting). |
|---|---|
| 20 | Bore size in mm. |
| ×30 | 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 B52-MF Copper-Free Stainless Steel Mini Cylinder B52-MF20X30SU Is Used
PCB Drilling Jig Clamp
Use the 30 mm stroke to clamp thin PCB panels during CNC drilling. The 157 N push force at 0.5 MPa holds the board firmly, while the compact body fits between closely spaced drill spindles.
Ammonia Analyzer Valve Actuator
In ammonia gas analysis systems, the copper-free B52 construction prevents corrosion where standard cylinders fail. The 8 mm rod and 30 mm stroke actuate small sampling valves reliably in restricted cabinets.
Battery Tab Forming Die
For lithium-ion battery tab bending, this cylinder's copper-free build avoids contamination risks. The 131.9 N retract force at 0.5 MPa pulls the forming die back quickly, and the TPU bumper prevents die chatter at the end of stroke.
Is the Airtac B52-MF Copper-Free Stainless Steel Mini Cylinder B52-MF20X30SU the Right Cylinder?
When sizing, compare the B52-MF20X30SU against the next bore up: the MF25 delivers 245.3 N push at 0.5 MPa, so step up if your load exceeds the 94 N safe working load of this 20 mm bore. The 30 mm stroke suits short-travel indexing or clamping tasks, and the fixed TPU bumper pads soften the stroke end - but they do not lock the rod in place, so use an external rod lock or pilot-operated check valve if the load must stay held when air pressure is lost.
This unit comes with a flat-end (U) back cover and a built-in magnet (-S), so it works with CMSG, DMSG, or EMSG sensors for position detection. The 1/8" port suits small-bore piping, and the M8x1.25 male rod thread connects to standard fixtures. For mounting, choose LB foot brackets, FA flanges, SDB pivot blocks, or TC trunnions as your machine layout requires.
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 B52-MF Copper-Free Stainless Steel Mini Cylinder B52-MF20X30SU FAQ
At 0.5 MPa, the B52-MF20X30SU delivers 157 N push and 131.9 N pull. At 0.7 MPa, it produces 219.8 N push and 184.7 N pull. The theoretical maximum force is 32 kgf at 1.0 MPa. The operating pressure range is 0.15 to 1.0 MPa, with a proof pressure of 1.5 MPa.
The B52- prefix marks AirTAC's copper-free (copper-prohibited) build of the MF20X30SU. It is designed for applications where copper and copper alloys are not permitted, such as ammonia systems or certain battery and electronics plants. The exact material substitutions are not published in our standard data sheet, so please confirm the specific replacement grades with us before ordering if this is critical for your process.
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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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