The AirTAC AirTAC SDA50X35BH Compact Cylinder | 50mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø50mm bore and 35mm 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 SDA50X35BH is a double-acting, single-rod compact cylinder engineered with a 50 mm bore and 35 mm stroke. Its riveted assembly merges the barrel, rear cover, piston, and rod into an exceptionally short axial footprint, conserving machine depth where conventional round-body units cannot fit. Operating at 0.15-1.0 MPa, it generates 981.7 N of push force and 824.7 N of pull force at 0.5 MPa.
This specific SKU is configured with a male M18x1.5 piston rod thread (option B) for robust load coupling, and utilizes fluororubber (FKM) seals (option H) for enhanced thermal and oil resistance. The bore is hard-anodized for longevity. End-stopping relies on a fixed NBR bumper that decelerates the piston near stroke limits; it is not an adjustable air cushion. Because this configuration lacks the -S magnet code, it cannot support magnetic position sensing.
| Model | AirTAC SDA50X35BH Compact Cylinder | 50mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø50 mm |
| Stroke | 35 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. |
| ×35 | 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 continuous carton erecting machines, where the short body length conserves floor space and the FKM seals withstand packaging heat zones.
Actuates routing gates on 50 kg pallet handling lines; the male M18x1.5 rod end secures heavy linkage brackets without lateral play.
Clamps heavy cast iron housings inside machining centers, utilizing the 981.7 N extend force to hold parts rigidly against cutting forces.
Selecting this 50 mm bore provides a theoretical maximum push of 200 kgf at 1.0 MPa. If your application requires less force, stepping down to the SDA40 yields 628.3 N of push at 0.5 MPa. Conversely, if you need greater thrust, stepping up to the SDA63 provides 1558.6 N at 0.5 MPa. Based on the 981.7 N push figure at 0.5 MPa, the safe working load is approximately 589 N, which translates to a vertical lift capacity of about 50 kg with a 2:1 safety margin.
When ordering, confirm the 50 mm bore, 35 mm stroke, PT1/4 port, male M18x1.5 rod thread, and FKM seal configuration. Note that a standard cylinder drifts when air pressure is lost or the valve is centered; the fixed bumper only decelerates the stroke end and does not function as a locking brake. To suspend a load safely without live pressure, integrate an external rod lock or a pilot-operated check valve.
Quick checklist
This double-acting cylinder delivers 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 the 1.0 MPa pressure limit. It operates at speeds between 30-500 mm/s within a temperature range of -20 to +70 C.
No, this specific SKU lacks the -S magnet option, so it cannot trigger AirTAC reed or electronic switches. Additionally, end-stopping is handled by a fixed NBR bumper rather than an adjustable air cushion. For high kinetic energy loads, you should slow the approach speed or install an external shock absorber to prevent bumper damage.
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