The AirTAC AirTAC SDA20X15BH Compact Cylinder | 20mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø20mm bore and 15mm 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.
The AirTAC SDA20X15BH is a double-acting single-rod compact cylinder engineered for tight axial spaces. It delivers 157.1 N of push force at 0.5 MPa and 219.9 N at 0.7 MPa. The riveted unibody design drastically reduces mounting depth compared to round-body units, making it ideal for dense machinery layouts. This specific SKU includes an FKM fluororubber seal for enhanced thermal and oil resistance.
This model features an 8 mm piston rod with a male M6x1.0 thread end for straightforward load coupling. Because it lacks the -S magnet code, it cannot host reed or electronic switches. End-of-stroke deceleration is handled by fixed NBR bumpers rather than adjustable air cushions, meaning operators should slow high-velocity approaches or add external shock absorbers to mitigate impact energy.
| Model | AirTAC SDA20X15BH Compact Cylinder | 20mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø20 mm |
| Stroke | 15 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).
| 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.
| SDA | Compact (thin) double-acting cylinder series. |
|---|---|
| 20 | Bore size in mm. |
| ×15 | 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).
Actuates a routing blade in a PCB depaneling machine where the short 15 mm stroke and compact body fit within tight router enclosures, utilizing the FKM seals to resist flux residues.
Provides the 157.1 N push force required to close a small heated platen on a pharmaceutical blister packaging line, with the male M6 thread securing the upper die.
Presses surface-mount connector pins flat during electronics assembly, taking advantage of the 8 mm rod and fixed NBR bumpers to absorb the tiny 15 mm end-stop impact.
When sizing this actuator, stepping down to the SDA16 yields 100.5 N of push at 0.5 MPa, while stepping up to the SDA25 provides 245.4 N, allowing you to scale force precisely. For this 20 mm bore, the safe working load is approximately 94 N (about 60% of the 157.1 N figure), translating to a vertical lift capacity of roughly 8 kg with a 2:1 safety margin. Keep in mind that a standard compact cylinder will drift and cannot hold a load if air pressure drops or the valve is centered; utilize an external rod lock or pilot-operated check valve if position holding is mandatory. Confirm your ordering essentials: 20 mm bore, 15 mm stroke, M5x0.8 port, male M6 rod thread, FKM seals, and no sensor magnet.
Quick checklist
This double-acting cylinder generates 157.1 N push and 131.9 N pull at 0.5 MPa, and 219.9 N push at 0.7 MPa. The theoretical maximum push force is 32 kgf at 1.0 MPa. It operates on filtered air between 0.15-1.0 MPa at speeds of 30-500 mm/s, with a proof pressure of 1.5 MPa.
No, this specific SKU lacks the internal piston magnet, so it cannot host reed or electronic switches. You would need the -S option for sensing. Additionally, it uses fixed NBR bumpers for end-stop deceleration rather than an adjustable air cushion, so external shock absorbers are recommended for high-energy loads.
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