The AirTAC AirTAC SDA50X75SBH Compact Cylinder | 50mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø50mm bore and 75mm 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 SDA50X75SBH 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 riveted body design integrates the barrel, rear cover, piston, and rod into a highly unified structure, significantly reducing axial mounting depth where a standard round-body unit would be too bulky. The 50 mm bore features a hard-anodized inner wall and a two-way piston seal for reliable pneumatic performance.
This specific configuration includes the S option for a built-in piston magnet, enabling position detection via an AirTAC reed or electronic switch seated in the body grooves. The B option provides a male M18x1.5 threaded piston rod end for direct load coupling, while the H option equips the unit with fluororubber (FKM) seals for enhanced thermal and oil resistance. End-of-stroke deceleration is handled by a fixed NBR bumper rather than an adjustable air cushion.
| Model | AirTAC SDA50X75SBH Compact Cylinder | 50mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø50 mm |
| Stroke | 75 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. |
| ×75 | 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 and FKM seals to withstand cutting fluid exposure.
Stages filled corrugated cartons at the end of a packaging line, where the short riveted body minimizes frame interference and the male M18x1.5 rod drives the pusher plate.
Raises and lowers a 50 kg workpiece tray on an assembly conveyor, requiring the integrated magnet to trigger an electronic switch for precise mid-stroke positioning.
Selecting this 50 mm bore model provides a safe working load of roughly 589 N (about 60% of the 981.7 N push force at 0.5 MPa), translating to a vertical lift capacity of approximately 50 kg with a 2:1 safety margin. If your application requires less force, stepping down to the SDA40 yields 628.3 N at 0.5 MPa; conversely, scaling up to the SDA63 provides 1558.6 N at 0.5 MPa. Keep in mind that a plain compact cylinder does not hold its load if air pressure drops or the valve is centered—the piston will drift, and the fixed bumper only decelerates the stroke end, acting neither as a lock nor a brake. For suspended loads, an external rod lock or pilot-operated check valve is required.
When ordering, confirm the 50 mm bore, 75 mm stroke, PT1/4 port, male M18x1.5 rod thread, integrated magnet, and FKM seal configuration to match your machine's spatial and environmental constraints.
Quick checklist
This double-acting 50 mm bore cylinder generates 981.7 N push and 824.7 N pull at 0.5 MPa, increasing to 1374.4 N push and 1154.5 N pull at 0.7 MPa. The theoretical maximum push force is 200 kgf at 1.0 MPa. It operates on filtered air between 0.15 and 1.0 MPa, with a proof pressure of 1.5 MPa, and supports a speed range of 30-500 mm/s.
It relies on a fixed NBR bumper at each end to decelerate the piston near the stroke limits; this is not an adjustable air cushion, so high-speed applications may need an external shock absorber. For position feedback, the built-in magnet (-S) allows you to mount an AirTAC reed or electronic switch directly into the body grooves.
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