The AirTAC AirTAC SDA50X45SBH Compact Cylinder | 50mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø50mm bore and 45mm 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 SDA50X45SBH 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. The riveted unibody design significantly reduces axial mounting depth, making it ideal for machinery where a traditional round-body unit would be too long. This specific configuration includes an FKM (fluororubber) seal variant, providing enhanced resistance to high temperatures and industrial lubricants.
This model features a built-in piston magnet (-S) compatible with AirTAC reed or electronic switches, which seat neatly into the grooves around the hard-anodized aluminum body. It is equipped with a male-threaded piston rod (-B) sized at M18x1.5 for secure mechanical coupling. Instead of an adjustable air cushion, the piston strikes a fixed NBR bumper at each end to decelerate the stroke.
| Model | AirTAC SDA50X45SBH Compact Cylinder | 50mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø50 mm |
| Stroke | 45 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. |
| ×45 | 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 mechanism on continuous carton erecting lines, utilizing the 45 mm stroke and 981.7 N push force to cleanly fold heavy corrugated flaps without excessive machine depth.
Actuates a routing gate on a 50 kg capacity pallet conveyor, where the short riveted body saves footprint space and the FKM seals withstand elevated ambient temperatures near heat shrink tunnels.
Secures heavy cast iron blocks inside CNC machining centers, using the male M18x1.5 rod to thread directly into a custom clamp arm for positive holding during milling.
When sizing this unit, stepping down to the SDA40 bore yields 628.3 N of push force at 0.5 MPa, while stepping up to the SDA63 provides 1558.6 N. For the SDA50X45SBH, the safe working load is approximately 589 N (about 60% of the 981.7 N figure), translating to a vertical lift capacity of roughly 50 kg with a 2:1 safety margin. Keep in mind that a standard compact cylinder will drift and cannot hold a load if air pressure is lost or the valve is centered; maintaining a vertical load requires an external rod lock or a pilot-operated check valve.
To order, confirm the 50 mm bore, 45 mm stroke, PT1/4 port, and the -S (magnet), -B (male M18x1.5 rod), and -H (FKM seal) options. The fixed NBR bumper is not a lock or brake, so high-energy cycles may require slowing the approach or adding an external shock absorber.
Quick checklist
This double-acting 50 mm bore cylinder generates 981.7 N push and 824.7 N pull at 0.5 MPa, and 1374.4 N push at 0.7 MPa. The theoretical maximum push force is 200 kgf at the maximum operating pressure of 1.0 MPa.
It relies on a fixed NBR bumper at each end to decelerate the piston; this is not an adjustable air cushion, nor is it a locking brake. Furthermore, the cylinder will drift if air is lost, so an external rod lock or pilot-operated check valve is required to hold a load safely.
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