The AirTAC SDA20X15H 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 SDA20X15H is a double-acting, single-rod compact cylinder engineered for tight axial spaces. A riveted assembly joining the barrel, rear cover, and piston yields an exceptionally short body, saving valuable mounting depth where standard round-body units fail to fit. Operating at 0.15-1.0 MPa, it generates 157.1 N of push force and 131.9 N of pull force at 0.5 MPa.
This specific SKU utilizes a fluororubber (FKM) seal for enhanced thermal and oil resistance. The bore is hard-anodized, and end deceleration relies strictly on a fixed NBR bumper rather than an adjustable air cushion. It features an 8 mm piston rod, accepts an M5x0.8 air port, and because it lacks the -S option, it does not include a piston magnet for sensing.
| Model | AirTAC SDA20X15H 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).
Provides the 15 mm precise cutting stroke for depaneling routers, where the compact riveted body minimizes Z-axis height and the FKM seals resist flux vapors.
Drives the short 15 mm sealing head against plastic blister packs, utilizing the 157.1 N push force at 0.5 MPa to close molds in confined packaging machinery.
Actuates small fluid dispenser valves in laboratory automation, taking advantage of the 8 mm rod and high-temperature FKM elastomers for chemical compatibility.
When sizing this 20 mm bore 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. To order, confirm the 20 mm bore, 15 mm stroke, M5x0.8 port, female M4x0.7 rod thread, and the FKM seal option. Note that a plain cylinder drifts if air pressure is lost or the valve is centered; the fixed bumper only decelerates the stroke end and acts as neither a lock nor a brake. To hold a load securely without live pressure, integrate an external rod lock or a pilot-operated check valve.
Quick checklist
This 20 mm bore double-acting cylinder provides 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 between 0.15-1.0 MPa, with a proof pressure of 1.5 MPa, and runs at speeds of 30-500 mm/s.
No, this specific SKU lacks the -S piston magnet, so it cannot trigger AirTAC reed or electronic switches. You would need to specify the -S option to enable sensing. Additionally, end stopping relies on a fixed NBR bumper, which is not an adjustable air cushion.
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