Airtac B52-MF Copper-Free Stainless Steel Mini Cylinder B52-MF20X50SCMFA
The AirTAC Airtac B52-MF Copper-Free Stainless Steel Mini Cylinder B52-MF20X50SCMFA is a genuine double acting JIS-standard round-body mini air cylinder with a Ø20mm bore and 50mm 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
- Stroke50 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-MF20X50SCMFA
The B52-MF20X50SCMFA is a copper-free (copper-prohibited) version of AirTAC's MF20X50SCMFA, engineered for environments where copper and copper alloys are not permitted, such as ammonia systems and certain battery or chemical plants. This double-acting, JIS-standard round-body mini cylinder delivers 157 N of push force at 0.5 MPa, making it a compact solution for light automation tasks.
The SUS304 stainless steel barrel and riveted aluminium covers resist mild corrosion and washdown, while the two-way oil-retaining piston seal maintains lubrication for extended life. The fixed TPU bumper pads and front-cover anti-impact pad soften stroke-end impacts. With a 1/8" port and M8x1.25 rod thread, this 20 mm bore unit fits tight spaces-its body is shorter than an ISO 6432 cylinder of the same bore and stroke. For a 2:1 safety margin, plan for about 8 kg of vertical lift capacity, or roughly 94 N of safe working load.
Airtac B52-MF Copper-Free Stainless Steel Mini Cylinder B52-MF20X50SCMFA Technical Specifications
| Model | Airtac B52-MF Copper-Free Stainless Steel Mini Cylinder B52-MF20X50SCMFA |
|---|---|
| Series | MF JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 50 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-MF20X50SCMFA
| MF | JIS-standard round-body mini cylinder (double-acting). |
|---|---|
| 20 | Bore size in mm. |
| ×50 | 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-MF20X50SCMFA Is Used
Battery Assembly Jigs
Use in lithium-ion battery tab welding fixtures where copper-free construction prevents contamination. The 157 N push force at 0.5 MPa handles light clamping of cell holders, while the compact body fits tight machine frames.
Chemical Dosing Stations
Ideal for ammonia-based dosing valves in water treatment skids. The copper-free build avoids corrosion reactions, and the stainless barrel withstands occasional chemical splashes. The 50 mm stroke suits small valve actuation.
Electronics Test Probes
Actuate PCB test probes in electronics manufacturing lines. The 131.9 N retract force at 0.5 MPa pulls probes back quickly, while the TPU bumpers prevent damaging impacts at 30-800 mm/s cycle speeds.
Is the Airtac B52-MF Copper-Free Stainless Steel Mini Cylinder B52-MF20X50SCMFA the Right Cylinder?
When sizing, consider that the next bore up, MF25, delivers 245.3 N of push force at 0.5 MPa-a 56% increase if your application needs more margin. There is no smaller MF bore below 20 mm. The built-in -S magnet enables CMSG, DMSG, or EMSG sensors for position sensing. This configuration includes the CM round-end back cover and FA flange mounting. Note that this cylinder does not hold its position when air pressure is lost or the valve is centered-the piston drifts. For load holding, add an external rod lock or pilot-operated check valve. The 50 mm stroke is within the standard 500 mm maximum, so no special order is needed.
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-MF20X50SCMFA FAQ
At 0.5 MPa, push force is 157 N and pull force is 131.9 N. At 0.7 MPa, push increases to 219.8 N and pull to 184.7 N. The theoretical maximum force is 32 kgf at 1.0 MPa. Operating pressure range is 0.15-1.0 MPa with proof pressure of 1.5 MPa.
B52- designates AirTAC's copper-free (copper-prohibited) construction, meaning copper and copper alloys are replaced in components that would normally contain them. This suits ammonia systems and certain battery, electronics, and chemical plants. The exact material substitutions should be confirmed with us, as they may vary by component. All dimensional and performance figures-157 N push at 0.5 MPa, 1/8" port, M8x1.25 thread-remain identical to the standard MF20X50SCMFA.
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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