The AirTAC AirTAC SDA50X90BH Compact Cylinder | 50mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø50mm bore and 90mm stroke, PT1/4 air ports and a riveted short body that saves mounting depth. Sensor slots around the body accept magnetic switches for position sensing.
The AirTAC SDA50X90BH is a double-acting single-rod compact cylinder engineered to deliver 981.7 N of push force and 824.7 N of pull force at 0.5 MPa. Its short riveted body significantly reduces axial mounting depth compared to round-body alternatives, saving valuable machine footprint in tight assemblies. The unit operates at speeds between 30-500 mm/s.
This specific configuration includes a male M18x1.5 threaded piston rod end for robust load coupling, paired with fluororubber (FKM) seals for enhanced thermal and oil resistance. End stopping relies on a fixed NBR bumper that decelerates the piston near stroke limits; it is not an adjustable air cushion. Because this SKU lacks the -S magnet option, it cannot support magnetic position sensing.
| Model | AirTAC SDA50X90BH Compact Cylinder | 50mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø50 mm |
| Stroke | 90 mm |
| Acting type | Double acting |
| Port size | PT1/4 |
| Rod end thread | M10×1.5 female / M18×1.5 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 | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 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. |
|---|---|
| 50 | Bore size in mm. |
| ×90 | 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).
Drives cardboard flap folders on high-speed packaging lines, utilizing the 90 mm stroke and FKM seals to withstand warm ambient conditions near heat shrink tunnels.
Actuates a routing gate to push heavy parcels onto secondary chutes, providing 981.7 N of extend force to reliably overcome carton friction at 0.5 MPa.
Mounts on a plastic injection molding machine to eject 50 kg formed parts, leveraging the male M18x1.5 rod thread for secure tooling attachment.
When sizing this actuator, evaluate your force requirements carefully. Stepping down to the SDA40 yields 628.3 N of push at 0.5 MPa, while stepping up to the SDA63 provides 1558.6 N. For the SDA50X90BH, the safe working load is approximately 589 N (about 60% of the 981.7 N figure), allowing a vertical lift of roughly 50 kg with a 2:1 safety margin. Confirm your ordering essentials: 50 mm bore, 90 mm stroke, PT1/4 port, male M18x1.5 rod thread, FKM seals, and no sensor magnet. Note that a standard cylinder drifts when air pressure is lost or a valve is centered, as the fixed bumper only decelerates near the end of travel and does not function as a locking brake; utilize an external rod lock or pilot-operated check valve if you must hold a load safely.
Quick checklist
At 0.5 MPa, this 50 mm bore cylinder provides 981.7 N push and 824.7 N pull. At 0.7 MPa, push increases to 1374.4 N and pull to 1154.5 N. The theoretical maximum push is 200 kgf at 1.0 MPa. Operating pressure ranges from 0.15-1.0 MPa, with a proof pressure of 1.5 MPa, and the speed range is 30-500 mm/s.
No, this specific SKU does not have a piston magnet, so it cannot support reed or electronic switches. End-of-stroke deceleration is handled by a fixed NBR bumper at each end. It is not an adjustable air cushion, so for high kinetic energy loads, you should add an external shock absorber or slow the approach speed.
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