The AirTAC AirTAC SDA16X55 Compact Cylinder | 16mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø16mm bore and 55mm 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 SDA16X55 is a double-acting, single-rod compact cylinder engineered for tight machinery layouts. It produces 100.5 N of push force and 86.4 N of pull force at 0.5 MPa, yielding a safe working load of roughly 60 N or a 5.1 kg vertical lift with a 2:1 margin. The 55 mm stroke operates within the 60 mm standard limit, running at 30-500 mm/s.
Its riveted assembly significantly reduces axial mounting depth compared to round-body units. End-stops rely on a fixed NBR bumper rather than an adjustable air cushion, meaning high-energy cycles require an external shock absorber. This specific SKU lacks a piston magnet, so it cannot host position sensors; adding the -S option enables reed or electronic switch integration.
| Model | AirTAC SDA16X55 Compact Cylinder | 16mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø16 mm |
| Stroke | 55 mm |
| Acting type | Double acting |
| Port size | M5×0.8 |
| Rod end thread | M3×0.5 female / M5×0.8 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 50 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 | 101 N | 86 N |
| 0.7 MPa | 141 N | — |
| Max (@1.0 MPa) | 21 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. |
|---|---|
| 16 | Bore size in mm. |
| ×55 | 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).
Pushes separated circuit boards off a routing fixture with 100.5 N of force, where the 55 mm stroke clears the tooling gap without wasting machine depth.
Actuates a lightweight flap to sort plastic caps on a packaging line, utilizing the compact riveted body to fit between narrow conveyor belts.
Drives a micro-valve for chemical dosing, offering a 5.1 kg vertical lift margin while enduring operating pressures from 0.15 to 1.0 MPa.
When sizing this unit, stepping down to the SDA12 provides 56.5 N of push at 0.5 MPa, while moving up to the SDA20 increases that output to 157.1 N. To confirm your ordering essentials for this model: specify the 16 mm bore, 55 mm stroke, M5x0.8 port, female M3x0.5 rod-end thread, and note that no magnet is present. The 6 mm piston rod should avoid side loading to maximize seal life.
Because this is a standard double-acting cylinder, it will not hold a load if air pressure drops or the directional valve centers. The piston will drift, and the fixed NBR bumper only decelerates the stroke near its end without acting as a mechanical brake. If your application demands position holding without live pressure, install an external rod lock or a pilot-operated check valve.
Quick checklist
At 0.5 MPa, this 16 mm bore cylinder outputs 100.5 N push and 86.4 N pull. At 0.7 MPa, it outputs 140.7 N push and 121 N pull. The theoretical maximum push is 21 kgf at 1.0 MPa. Operating pressure spans 0.15-1.0 MPa, with a speed range of 30-500 mm/s.
This specific SKU lacks the internal magnet, so it cannot accept reed or electronic switches (you must specify the -S option for sensing). Additionally, it uses a fixed NBR bumper at each end to decelerate the stroke, which is not an adjustable air cushion; high-speed applications require external shock absorption.
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