The AirTAC AirTAC SDA50X5S Compact Cylinder | 50mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø50mm bore and 5mm 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 SDA50X5S is a double-acting single-rod compact cylinder engineered for tight axial spaces, delivering a robust 981.7 N push force at 0.5 MPa. Its riveted body assembly significantly reduces overall mounting depth compared to traditional round-body units, making it highly effective for conserving machine footprint. The 50 mm bore features a hard-anodized inner wall and a two-way piston seal for prolonged operational life.
Equipped with a built-in piston magnet (the -S option), this unit supports direct mounting of AirTAC reed or electronic switches along the body grooves for precise end-of-stroke signaling. The 5 mm stroke is governed by a fixed NBR bumper at each end to decelerate the impact, which is not a field-adjustable air cushion. Operating at speeds of 30-500 mm/s, it utilizes a PT1/4 port and a 20 mm rod to handle rapid actuation tasks efficiently.
| Model | AirTAC SDA50X5S Compact Cylinder | 50mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø50 mm |
| Stroke | 5 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. |
| ×5 | 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).
Handles short 5 mm insertion strokes for seating dowel pins in CNC-machined aluminum jigs, utilizing the 981.7 N push force to overcome initial material friction.
Executes rapid, short-travel folding of corrugated box flaps on high-speed packaging lines, where the compact riveted body saves valuable conveyor clearance.
Acts as a rigid mechanical stop for positioning mild steel sheets at a press brake feeding station, benefiting from the 20 mm rod diameter to resist deflection.
When sizing this actuator, evaluate your force margins carefully. Stepping down to the SDA40 yields 628.3 N push at 0.5 MPa, while stepping up to the SDA63 provides 1558.6 N, giving you clear boundaries for scaling your design. For the SDA50X5S specifically, the safe working load is approximately 589 N (about 60% of the 981.7 N figure at 0.5 MPa), translating to a vertical lift capacity of roughly 50 kg with a 2:1 safety margin.
To finalize your order, confirm the 50 mm bore, 5 mm stroke, PT1/4 port, female M10x1.5 rod thread, and the required -S magnet for sensing. Keep in mind that a standard compact cylinder drifts when air pressure is lost or the valve is centered; the fixed bumper only decelerates the piston near the stroke end and does not function as a locking brake. If your application must hold a load without live pressure, integrate an external rod lock or a pilot-operated check valve.
Quick checklist
This 50 mm bore double-acting cylinder provides 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 force is 200 kgf at the 1.0 MPa pressure limit.
It relies on a fixed NBR bumper at each end to decelerate the piston, which is not an adjustable air cushion. If operating at high speeds, you should add an external shock absorber. Additionally, it does not hold its position on air loss; the piston drifts, so an external rod lock is required for load holding.
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