The AirTAC AirTAC SDA20X35BH Compact Cylinder | 20mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø20mm bore and 35mm 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 SDA20X35BH is a double-acting single-rod compact cylinder engineered for tight machinery footprints. Its riveted assembly minimizes axial mounting depth, delivering 157.1 N of push force at 0.5 MPa while operating at speeds between 30-500 mm/s.
This specific configuration includes a male M6x1.0 piston rod end for direct load coupling, paired with high-temperature fluororubber (FKM) seals. The unit lacks a piston magnet, meaning magnetic position sensing is not supported on this SKU. End-stroke deceleration relies strictly on a fixed NBR bumper rather than an adjustable air cushion.
| Model | AirTAC SDA20X35BH Compact Cylinder | 20mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø20 mm |
| Stroke | 35 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. |
| ×35 | 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 the cutting head feed on an electronics assembly line, utilizing the 35mm stroke and FKM seals to resist ambient flux vapors while pushing with 157.1 N at 0.5 MPa.
Provides the precise downward clamping force on a small thermoforming line, where the short riveted body conserves vertical machine space and the male M6 thread secures the heated platen.
Drives a lightweight routing flap on a logistics conveyor, rapidly extending 35mm to redirect small parcels using a safe working load of approximately 94 N at 0.5 MPa.
When sizing this 20mm bore actuator, consider stepping down to the SDA16 which yields 100.5 N of push at 0.5 MPa, or stepping up to the SDA25 which provides 245.4 N. At 0.5 MPa, this 20mm unit safely handles a working load of roughly 94 N, allowing a vertical lift of about 8 kg with a 2:1 safety margin. To order, confirm the 35mm stroke, M5x0.8 port, male M6 rod thread, and the FKM seal option.
Because this is a standard double-acting cylinder, it will not hold a load if air pressure drops or the valve is centered. The internal NBR bumper only decelerates the piston near the stroke ends and does not function as a locking brake. If your application requires position holding upon air loss, you must integrate an external rod lock or a pilot-operated check valve.
Quick checklist
This 20mm bore double-acting cylinder generates a push force of 157.1 N and a pull force of 131.9 N at 0.5 MPa. At 0.7 MPa, the push force is 219.9 N. The theoretical maximum push force is 32 kgf at 1.0 MPa. It operates within a pressure range of 0.15-1.0 MPa and a speed range of 30-500 mm/s.
No, this specific SKU lacks the internal piston magnet, so it cannot support AirTAC reed or electronic switches. Additionally, it uses a fixed NBR bumper at each end to absorb end-stop impact; it does not have an adjustable air cushion. For high-speed operations, you should add an external shock absorber or slow down the approach speed.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.