The AirTAC AirTAC SDA50X45BH Compact Cylinder | 50mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø50mm bore and 45mm 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 SDA50X45BH is a double-acting 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 minimizes axial mounting depth, providing a distinct footprint advantage in tight machinery layouts where longer profile cylinders cannot fit. The unit operates at speeds between 30-500 mm/s.
This specific configuration includes a male M18x1.5 threaded piston rod for robust load coupling and utilizes a fluororubber (FKM) seal for enhanced thermal and oil resistance. End-stopping is handled by a fixed NBR bumper that decelerates the piston near stroke limits; it is not an adjustable air cushion, so high-energy cycles may require external shock absorption.
| Model | AirTAC SDA50X45BH Compact Cylinder | 50mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø50 mm |
| Stroke | 45 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. |
| ×45 | 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).
Secures heavy cast iron engine blocks during machining operations, utilizing the 981.7 N extend force to maintain rigid positioning against cutting forces.
Indexes empty wooden pallets into a high-speed filling line, where the compact 45 mm stroke and short body length conserve floor space within the conveyor framework.
Actuates a lightweight vertical transfer gate on a packaging machine, lifting approximately 50 kg with a 2:1 safety margin while the FKM seals withstand warm ambient conditions.
When sizing this unit, 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, allowing you to scale thrust precisely. Based on the 981.7 N output at 0.5 MPa, the safe working load is roughly 589 N (about 60 percent of capacity), translating to a vertical lift capability of approximately 50 kg with a 2:1 safety margin. To order, confirm the 50 mm bore, 45 mm stroke, PT1/4 port, male M18x1.5 rod thread, FKM seals, and the absence of a piston magnet. Note that a standard cylinder drifts when air pressure is lost or the valve is centered; if your application must hold a load without live pressure, integrate an external rod lock or a pilot-operated check valve.
Quick checklist
This double-acting cylinder generates 981.7 N push and 824.7 N pull at 0.5 MPa, and 1374.4 N push at 0.7 MPa. The theoretical maximum push force is 200 kgf at the maximum operating pressure of 1.0 MPa.
It relies on a fixed NBR bumper at each end to decelerate the piston, which is not an adjustable air cushion or a locking brake. Because this SKU lacks the -S magnet option, it cannot support reed or electronic switches; position sensing requires the -S variant.
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