The AirTAC AirTAC SDA20X100SB Compact Cylinder | 20mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø20mm bore and 100mm 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 SDA20X100SB is a double-acting, single-rod compact cylinder engineered to deliver 157.1 N of push force and 131.9 N of pull force at 0.5 MPa. By utilizing a short riveted body assembly, it drastically reduces axial mounting depth compared to conventional round-body units, making it highly effective for machinery where space footprint is critical. The bore is hard-anodized and employs a two-way piston seal for reliable performance across a 30-500 mm/s speed range.
This specific configuration includes a built-in piston magnet (-S) for position detection using an AirTAC reed or electronic switch fitted into the body grooves. It also features a male M6x1.0 threaded piston rod (-B), providing a robust coupling point for your load. End-stopping is handled by a fixed NBR bumper which decelerates the piston near stroke limits; it is not an adjustable air cushion, so high-energy cycles may require external shock absorption.
| Model | AirTAC SDA20X100SB Compact Cylinder | 20mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø20 mm |
| Stroke | 100 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. |
| ×100 | 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 guide on an automated PCB depaneling machine, utilizing the 100mm stroke to traverse the board width while keeping the overall frame narrow.
Pushes lightweight cardboard cartons between adjacent conveyor belts, where the 157.1 N force is sufficient to redirect items without damaging the packaging.
Drives a precision pipette arm in a clinical diagnostics analyzer, using the male M6 rod end to mount the pipette head and the magnet for stroke confirmation.
When sizing this unit, consider stepping down to the SDA16 which yields 100.5 N of push at 0.5 MPa for lighter tasks, or stepping up to the SDA25 which provides 245.4 N if your application demands greater thrust. At 157.1 N, this 20mm bore offers a safe working load of roughly 94 N (about 60% capacity) and can vertically lift approximately 8 kg with a 2:1 safety margin. To confirm your ordering essentials: specify the 20mm bore, 100mm stroke, M5x0.8 port, required magnet (S), and the male (B) rod thread.
Remember that a standard compact cylinder does not hold its position if air pressure drops or the directional valve is centered. The piston will drift, and the fixed NBR bumper only decelerates the stroke end rather than acting as a locking brake. If your setup must maintain a load without live pressure, integrate an external rod lock or a pilot-operated check valve into the pneumatic circuit.
Quick checklist
This double-acting cylinder provides 157.1 N push and 131.9 N pull at 0.5 MPa. At 0.7 MPa, the push increases to 219.9 N. The theoretical maximum push force is 32 kgf at the 1.0 MPa operating pressure limit.
No, it uses a fixed NBR bumper at each end to decelerate the piston near the stroke limits. It is not an adjustable air cushion. For high-speed or high-energy cycles, you should add an external shock absorber or slow down the approach speed.
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