The AirTAC AirTAC SDA40X5SB Compact Cylinder | 40mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø40mm bore and 5mm stroke, PT1/8 air ports and a riveted short body that saves mounting depth. Sensor slots around the body accept magnetic switches for position sensing.
The AirTAC SDA40X5SB is a double-acting, single-rod compact cylinder engineered for minimal axial mounting depth. Its riveted body assembly keeps the overall length exceptionally short, fitting into tight machine footprints where round-body units cannot. Operating at 0.5 MPa, it generates 628.3 N of push force and 527.8 N of pull force.
This specific configuration includes a built-in piston magnet (-S) for direct mounting of AirTAC reed or electronic switches along the body grooves. It is equipped with a male M14x1.5 piston rod thread (-B) for secure load coupling. End-stops rely on a fixed NBR bumper to decelerate the motion rather than an adjustable air cushion.
| Model | AirTAC SDA40X5SB Compact Cylinder | 40mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø40 mm |
| Stroke | 5 mm |
| Acting type | Double acting |
| Port size | PT1/8 |
| Rod end thread | M8×1.25 female / M14×1.5 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 120 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 | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 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. |
|---|---|
| 40 | Bore size in mm. |
| ×5 | 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).
Applies 628.3 N of lateral force to align circuit boards on an SMT conveyor using the short 5 mm stroke and integrated magnetic position sensing.
Drives a compact tucking arm inside a tight packaging machine footprint, utilizing the male M14x1.5 rod thread to secure the mechanical jaw.
Ejects small machined aluminum parts from a fixture, relying on the fixed NBR bumper to absorb the impact at the end of the 5 mm travel.
When sizing this unit, consider stepping down to the SDA32, which yields 402.1 N of push force at 0.5 MPa, or moving up to the SDA50, which provides 981.7 N at the same pressure. For this 40 mm bore, a safe working load is approximately 377 N (about 60% of the 628.3 N figure), translating to a vertical lift capacity of roughly 32 kg with a 2:1 safety margin. To finalize your order, confirm the 5 mm stroke, PT1/8 port, male M14x1.5 rod thread, and the required magnetic sensor option. Note that this cylinder will drift if air pressure is lost; an external rod lock or pilot-operated check valve is required to hold a load securely.
Quick checklist
This 40 mm bore double-acting cylinder provides 628.3 N push and 527.8 N pull at 0.5 MPa, and 879.6 N push at 0.7 MPa. The theoretical maximum push force is 128 kgf at 1.0 MPa. It operates between 0.15-1.0 MPa at speeds of 30-500 mm/s.
It uses a fixed NBR bumper at each end to decelerate the piston, which is not an adjustable air cushion. If your application involves high energy or requires the load to stay in place when air is lost, you must add an external shock absorber and a separate rod lock or pilot-operated check valve.
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