The AirTAC AirTAC SDA40X150B Compact Cylinder | 40mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø40mm bore and 150mm 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 SDA40X150B is a double-acting single-rod compact cylinder engineered to deliver 628.3 N of push force at 0.5 MPa. Its riveted assembly integrates the barrel, rear cover, piston, and rod to drastically reduce axial mounting depth compared to conventional round-body units. This specific configuration includes a male M14x1.5 piston rod thread for robust mechanical coupling to your load.
Because the 150 mm stroke exceeds the 130 mm standard limit for this 40 mm bore, this unit is classified as a non-standard, made-to-order item. The bore is hard-anodized and relies on a fixed NBR bumper at each end to decelerate the stroke, meaning it is not an adjustable air cushion. Operating speeds range from 30-500 mm/s within a 0.15-1.0 MPa pressure envelope.
| Model | AirTAC SDA40X150B Compact Cylinder | 40mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø40 mm |
| Stroke | 150 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. |
| ×150 | 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 a routing flap on a logistics sorting line, utilizing the 628.3 N extend force to push parcels weighing up to 32 kg onto secondary chutes.
Drives the mechanical folder arms on a corrugated box erecting machine, where the short riveted body conserves axial space within the tight framing.
Functions as an elevation stop for incoming pallets, requiring the male M14x1.5 thread to securely mount a custom contact pad for heavy-duty braking.
When sizing this actuator, step down to the SDA32 which provides 402.1 N of push at 0.5 MPa, or step up to the SDA50 which yields 981.7 N at the same pressure. For this 40 mm bore, a practical safe working load is approximately 377 N (about 60% of the 628.3 N capacity), translating to a vertical lift capability of roughly 32 kg with a 2:1 safety margin. Note that a plain SDA body does not hold its load if air pressure drops or the valve is centered; the piston will drift and the fixed bumper only decelerates it near the end of travel. For suspended loads, specify an external rod lock or pilot-operated check valve.
Confirm your ordering essentials: 40 mm bore, 150 mm non-standard stroke, PT1/8 port, no sensor magnet (this SKU lacks the -S option and cannot take a reed or electronic switch), and the -B male M14x1.5 rod end. Avoid side loading on the compact 16 mm rod to prevent premature seal wear.
Quick checklist
This 40 mm bore double-acting cylinder generates 628.3 N push and 527.8 N pull at 0.5 MPa. At 0.7 MPa, it yields 879.6 N push and 738.9 N pull. The theoretical maximum push is 128 kgf at 1.0 MPa, which is the absolute maximum operating pressure.
No, this specific SKU does not include the -S option, meaning it lacks a piston magnet and cannot trigger AirTAC reed or electronic switches. Additionally, because the 150 mm stroke exceeds the 130 mm standard maximum, it is a made-to-order item with fixed NBR bumpers rather than adjustable cushions.
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