Airtac B01-SDA Dedicated Cylinder B01-SDA40X20S
The AirTAC Airtac B01-SDA Dedicated Cylinder B01-SDA40X20S is a genuine double-acting COMPACT (thin) air cylinder with a Ø40mm bore and 20mm stroke, PT1/8 air ports and a riveted short body that saves mounting depth. Sensor slots around the body accept magnetic switches for position sensing.
- BoreØ40 mm
- Stroke20 mm
- Port sizePT1/8
- Acting typeDouble acting
- Rod threadM8×1.25 (F) / M14×1.5 (B)
- CushionFixed NBR bumper (both ends)
About the Airtac B01-SDA Dedicated Cylinder B01-SDA40X20S
The AirTAC B01-SDA40X20S is a double-acting, single-rod compact cylinder. The leading B01- prefix denotes an application-dedicated (customer-specified) variant of the base SDA40X20S, meaning it is mechanically identical to the standard model but grouped for specific customer builds. It generates 628.3 N of push force and 527.8 N of pull force at 0.5 MPa. The short riveted body significantly reduces axial mounting depth compared to round-body alternatives, saving valuable machine footprint.
This unit includes a built-in piston magnet (-S) for position detection using AirTAC reed or electronic switches housed in the body grooves. End-stopping relies on a fixed NBR bumper rather than an adjustable air cushion, meaning external shock absorbers should be added for high-energy loads. The 16 mm rod uses an M8x1.25 female thread, operating via PT1/8 ports at speeds between 30 and 500 mm/s.
Airtac B01-SDA Dedicated Cylinder B01-SDA40X20S Technical Specifications
| Model | Airtac B01-SDA Dedicated Cylinder B01-SDA40X20S |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø40 mm |
| Stroke | 20 mm |
| Acting type | Double acting |
| Port size | PT1/8 |
| Rod end thread | M8×1.25 female / M14×1.5 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 120 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 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-SDA40X20S
| SDA | Compact (thin) double-acting cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×20 | 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-SDA40X20S Is Used
PCB Router Clamping
Secures printed circuit board panels during routing operations, utilizing the 628.3 N push force to prevent substrate vibration without excessive axial footprint.
Carton Flap Folding
Deploys the 20 mm stroke to rapidly fold corrugated cardboard flaps on automated packaging lines, handling the task efficiently within tight conveyor clearances.
Bearing Press Fit
Presses small bushings into housings on an assembly fixture, where the fixed NBR bumper adequately absorbs the impact of the short 20 mm end-stop.
Is the Airtac B01-SDA Dedicated Cylinder B01-SDA40X20S the Right Cylinder?
When sizing this 40 mm bore, step down to the SDA32 which provides 402.1 N push at 0.5 MPa, or step up to the SDA50 yielding 981.7 N push at 0.5 MPa. For this specific configuration, the safe working load is approximately 377 N (about 60% of the 0.5 MPa figure), translating to a vertical lift capacity of roughly 32 kg with a 2:1 safety margin. To finalize your order, confirm the 40 mm bore, 20 mm stroke, PT1/8 port, female M8x1.25 rod thread, and the required magnetic switch option. Note that a plain compact cylinder drifts when air pressure is lost or the valve is centered, as the fixed bumper only decelerates the stroke end rather than locking the load; utilize an external rod lock or pilot-operated check valve if position holding is critical.
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-SDA40X20S FAQ
At 0.5 MPa, the push force is 628.3 N and the pull force is 527.8 N. At 0.7 MPa, the push force is 879.6 N. The theoretical maximum push force is 128 kgf at 1.0 MPa. The operating pressure range is 0.15-1.0 MPa, with a proof pressure of 1.5 MPa.
The B01- prefix simply marks this as an application-dedicated (customer-specified) variant of the standard SDA40X20S, with no mechanical changes to the bore, stroke, or force. It does not have an adjustable air cushion; instead, it uses a fixed NBR bumper at each end to decelerate the piston. For high-speed or high-energy loads, an external shock absorber should be added.
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