The AirTAC SDA50X70SB Compact Cylinder | 50mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø50mm bore and 70mm 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 SDA50X70SB is a double-acting, single-rod compact cylinder engineered to deliver a push force of 981.7 N and a pull force of 824.7 N at 0.5 MPa. Equipped with a 70 mm stroke and a 50 mm bore, it utilizes a male M18x1.5 threaded piston rod for robust mechanical coupling to your load. The riveted body design drastically reduces axial mounting depth compared to conventional round-body units, making it highly effective for machinery where space savings are critical.
This specific configuration includes a built-in piston magnet (-S) for position sensing via AirTAC reed or electronic switches mounted in the body grooves. Instead of an adjustable air cushion, the cylinder relies on a fixed NBR bumper at each end to decelerate the piston near the stroke limits.
| Model | AirTAC SDA50X70SB Compact Cylinder | 50mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø50 mm |
| Stroke | 70 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. |
| ×70 | 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 routing flaps on high-speed logistics conveyors, utilizing the 70 mm stroke to redirect parcels efficiently within a compact footprint.
Drives the sealing head on automated packaging lines, applying up to 981.7 N of force to secure box flaps before taping.
Raises and lowers a localized lift mechanism in end-of-line palletizing cells, where the male M18x1.5 rod secures the tooling plate.
When sizing this unit, compare its 981.7 N push force 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. To finalize your order, confirm the 50 mm bore, 70 mm stroke, PT1/4 port, and the male M18x1.5 rod thread. Keep in mind that a standard double-acting cylinder like this will drift if air pressure is lost or the valve is centered; the fixed NBR bumper only absorbs end-of-stroke impacts and does not function as a locking brake. If your application requires strict position holding without live pressure, you must integrate an external rod lock or a pilot-operated check valve.
Quick checklist
This 50 mm bore cylinder generates a push force of 981.7 N and a pull force of 824.7 N at 0.5 MPa. At 0.7 MPa, the push increases to 1374.4 N. The theoretical maximum push is 200 kgf at 1.0 MPa. It operates within a pressure range of 0.15-1.0 MPa and a speed range of 30-500 mm/s.
No, there is no adjustable air cushion; the cylinder uses a fixed NBR bumper at each end to decelerate the stroke. The 'S' suffix denotes a built-in piston magnet for use with AirTAC reed or electronic switches. The 'B' suffix indicates the rod end features a male M18x1.5 thread instead of the standard female M10x1.5 thread.
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