The AirTAC AirTAC SDA20X100B 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 SDA20X100B is a double-acting, single-rod compact cylinder engineered to deliver 157.1 N of push force at 0.5 MPa. Utilizing a riveted assembly that merges the barrel, rear cover, and piston, this thin design drastically reduces axial mounting depth compared to round-body alternatives. Driven by filtered air over a 30-500 mm/s speed range, it provides a reliable linear motion solution for space-constrained machinery.
This specific SKU features a male-thread M6x1.0 piston rod end for straightforward load coupling, overriding the default female M4x0.7 thread. It lacks a piston magnet, meaning magnetic position sensing is not supported on this unit. End-of-travel deceleration is handled by a fixed NBR bumper rather than an adjustable air cushion, which safely absorbs impact but may require an external shock absorber for high-energy cycles.
| Model | AirTAC SDA20X100B 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 tool feed on an electronics assembly line, utilizing the 100mm stroke and male M6 rod to securely push the spindle carriage through routed circuit boards.
Drives the folding mechanism on a packaging conveyor, using the short riveted body to fit within tight side frames while providing 157.1 N to tuck corrugated flaps.
Extends a pipetting head into test tube racks, where the compact footprint saves vertical space and the fixed NBR bumper prevents glassware breakage during deceleration.
When sizing this 20mm bore actuator, evaluate your force margins: 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. For the SDA20X100B, a 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 factor. Keep in mind that a standard compact cylinder will drift and cannot hold a load if air pressure drops or the valve is centered; maintaining vertical loads requires an external rod lock or pilot-operated check valve. To order, confirm the 20mm bore, 100mm stroke, M5x0.8 port, male M6 rod thread, and no magnet.
Quick checklist
This double-acting cylinder generates 157.1 N push and 131.9 N pull at 0.5 MPa, increasing to 219.9 N push and 184.7 N pull 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, with a proof pressure of 1.5 MPa, and functions in temperatures from -20 to +70 C.
No, this specific SKU does not include a piston magnet, so it cannot trigger AirTAC reed or electronic switches. You would need the SDA20X100BS variant for position sensing. Additionally, the end stops rely on a fixed NBR bumper for deceleration, not an adjustable air cushion.
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