The AirTAC AirTAC SDA50X120BH Compact Cylinder | 50mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø50mm bore and 120mm 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 SDA50X120BH is a double-acting single-rod compact cylinder engineered for tight axial spaces. A riveted assembly unifies the barrel, rear cover, piston, and rod, yielding a remarkably short footprint compared to traditional round-body units. Operating at 0.5 MPa, it generates 981.7 N of push force and 824.7 N of pull force, while the hard-anodized 50 mm bore ensures lasting durability.
This specific configuration includes a male M18x1.5 piston rod thread for robust load coupling and an FKM fluororubber seal for enhanced thermal and oil resistance. End-of-stroke deceleration relies on fixed NBR bumpers rather than adjustable cushions. Because this SKU lacks the -S magnet option, it cannot support magnetic position sensing.
| Model | AirTAC SDA50X120BH Compact Cylinder | 50mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø50 mm |
| Stroke | 120 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. |
| ×120 | 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 the folding mechanisms on packaging lines, utilizing the 120 mm stroke and 981.7 N push force to erect corrugated cartons ready for filling.
Actuates routing gates on conveyor networks, where the compact riveted body minimizes protrusion into tight transfer zones alongside moving pallets.
Provides secondary part ejection from injection molding tools, leveraging the FKM seals to withstand elevated ambient temperatures near the machinery.
When sizing this actuator, compare its 981.7 N push at 0.5 MPa against adjacent bores: stepping down to the SDA40 yields 628.3 N, while stepping up to the SDA63 provides 1558.6 N. For this 50 mm bore, a safe working load is approximately 589 N (60% of the 0.5 MPa figure), translating to a vertical lift capacity of roughly 50 kg with a 2:1 safety margin.
Confirm your ordering essentials: 50 mm bore, 120 mm stroke, PT1/4 port, male M18x1.5 rod thread, and FKM seals. Note that a standard cylinder drifts when air pressure is lost or the valve is centered, as the fixed bumper only decelerates the stroke end without locking the load; apply an external rod lock or pilot-operated check valve if position holding is mandatory.
Quick checklist
At 0.5 MPa, the push force is 981.7 N and the pull force is 824.7 N. At 0.7 MPa, the push force is 1374.4 N and the pull force is 1154.5 N. The theoretical maximum push force is 200 kgf at the maximum operating pressure of 1.0 MPa.
You cannot adjust the end-of-stroke damping; it uses fixed NBR bumpers rather than an adjustable air cushion, so you may need an external shock absorber for high-energy loads. Additionally, this specific SKU lacks a piston magnet, so it cannot support reed or electronic switches without changing to an -S variant.
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