Airtac B01-SDA Dedicated Cylinder B01-SDA20X50S
The AirTAC Airtac B01-SDA Dedicated Cylinder B01-SDA20X50S is a genuine double-acting COMPACT (thin) air cylinder with a Ø20mm bore and 50mm stroke, M5×0.8 air ports and a riveted short body that saves mounting depth. Sensor slots around the body accept magnetic switches for position sensing.
- BoreØ20 mm
- Stroke50 mm
- Port sizeM5×0.8
- Acting typeDouble acting
- Rod threadM4×0.7 (F) / M6×1.0 (B)
- CushionFixed NBR bumper (both ends)
About the Airtac B01-SDA Dedicated Cylinder B01-SDA20X50S
The AirTAC B01-SDA20X50S is a double-acting, single-rod compact cylinder. The leading B01- prefix marks this as an application-dedicated (customer-specified) variant of the base SDA20X50S, meaning it is mechanically identical to the standard model but grouped for specific industry builds. It delivers 157.1 N of push force and 131.9 N of pull force at 0.5 MPa.
Its short riveted body significantly reduces axial mounting depth compared to round-body units, saving valuable machine footprint. The bore is hard-anodized, and because this code includes the S option, a built-in piston magnet enables position sensing via an AirTAC reed or electronic switch fitted into the body grooves. End-stopping relies on a fixed NBR bumper, which decelerates the piston near stroke end but is not an adjustable air cushion.
Airtac B01-SDA Dedicated Cylinder B01-SDA20X50S Technical Specifications
| Model | Airtac B01-SDA Dedicated Cylinder B01-SDA20X50S |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø20 mm |
| Stroke | 50 mm |
| Acting type | Double acting |
| Port size | M5×0.8 |
| Rod end thread | M4×0.7 female / M6×1.0 male (B) |
| 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 – 500 mm/s |
| Cushion | Fixed NBR bumper (both ends) |
| Max standard stroke | Up to 90 mm |
Specifications follow the official AirTAC SDA compact-cylinder datasheet. Confirm against the product label before installation. Port thread: PT (standard). Rod: female thread (blank) / male thread (B).
Theoretical Output Force (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 132 N |
| 0.7 MPa | 220 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 B01-SDA Dedicated Cylinder B01-SDA20X50S
| SDA | Compact (thin) double-acting cylinder series. |
|---|---|
| 20 | Bore size in mm. |
| ×50 | Stroke length in mm. |
| S | Built-in magnet for magnetic-switch position sensing (omit = no magnet). |
| B | Male-thread piston rod (omit = female-thread rod). |
Thread: PT standard. Related SDA-family variants: SSA (single-acting push), STA (single-acting pull), SDAD (double rod), SDAJ (adjustable stroke), SDAT (duplex), SDAW (duplex-end).
Where the Airtac B01-SDA Dedicated Cylinder B01-SDA20X50S Is Used
PCB Depaneling Router
Routes populated circuit boards using the 50mm stroke to plunge the cutting spindle, with the built-in magnet triggering an electronic switch to confirm spindle position.
Blister Pack Sealing
Closes the upper heat platen against the lower tooling with 157.1 N of extend force at 0.5 MPa, fitting easily into shallow packaging machinery frames.
Small Part Ejection
Pushes machined aluminum brackets out of a fixture; the 8mm rod and female M4x0.7 thread couple directly to the ejector pin without adding side load.
Is the Airtac B01-SDA Dedicated Cylinder B01-SDA20X50S the Right Cylinder?
When sizing this unit, consider stepping to the SDA16 for lighter duties, which provides 100.5 N push at 0.5 MPa, or moving up to the SDA25 for heavier loads, offering 245.4 N push at 0.5 MPa. The computed safe working load for this 20mm bore is roughly 94 N (about 60% of the 157.1 N figure), translating to a vertical lift capacity of approximately 8 kg with a 2:1 safety margin.
To order, confirm the 20mm bore, 50mm stroke, M5x0.8 port, and the S magnet option. Note that a plain compact cylinder does not hold its load if air pressure is lost or the valve is centered; the piston will drift, and the fixed bumper only decelerates near the end of travel. For applications requiring a held load, an external rod lock or pilot-operated check valve is required.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Short-body depth vs. a round-body cylinder
- ✓ Port/thread type (PT)
- ✓ Magnet (S) for sensors?
- ✓ Female (blank) or male (B) rod thread
- ✓ Side load — avoid on a compact rod
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 short piston rod.
- check Very long strokes are unsuitable for the compact body.
- check Front/rear covers are riveted — do not dismantle.
- check Installation by qualified personnel per AirTAC docs.
Airtac B01-SDA Dedicated Cylinder B01-SDA20X50S FAQ
This 20mm bore double-acting cylinder provides 157.1 N push and 131.9 N pull at 0.5 MPa, and 219.9 N push and 184.7 N pull at 0.7 MPa. The theoretical maximum push force is 32 kgf at 1.0 MPa. It operates at speeds between 30-500 mm/s.
The B01- prefix simply designates this as an application-dedicated (customer-specified) line of the SDA20X50S, with no mechanical changes to the bore, stroke, or seals. It does not have an adjustable air cushion; it uses a fixed NBR bumper at each end to decelerate the stroke. For high-speed cycling, add an external shock absorber or slow the approach.
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