The AirTAC AirTAC SDA63X120S Compact Cylinder | 63mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø63mm bore and 120mm 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 SDA63X120S is a double-acting, single-rod compact cylinder engineered to deliver a robust 1558.6 N push force at 0.5 MPa. Its riveted assembly unites the barrel, rear cover, piston, and rod to minimize axial mounting depth, saving valuable machine footprint where a conventional round-body unit would not fit. The 63 mm bore features a hard-anodized inner wall and a two-way piston seal for reliable service.
This specific configuration includes a 120 mm stroke and a built-in piston magnet (-S) for direct mounting of AirTAC reed or electronic switches along the body grooves. End-stopping relies on a fixed NBR bumper rather than an adjustable air cushion, meaning operators should add external shock absorbers if cycling at high speeds. The 20 mm rod utilizes a female M10x1.5 thread, and the unit operates on a PT1/4 port at speeds between 30 and 500 mm/s.
| Model | AirTAC SDA63X120S Compact Cylinder | 63mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø63 mm |
| Stroke | 120 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 | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 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. |
|---|---|
| 63 | Bore size in mm. |
| ×120 | 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 ejection pins on a 150-ton injection molding press, utilizing the 1558.6 N extend force to strip plastic housings reliably within a tight mold base.
Actuates a routing flap on a packaging conveyor, where the 120 mm stroke shifts heavy goods pallets laterally without requiring a long profile cylinder.
Raises heavy welding jigs on an automotive assembly line, safely lifting loads up to 79.4 kg vertically thanks to the 2:1 safety margin calculation.
When sizing this unit, compare its output against adjacent bores: stepping down to the SDA50 yields 981.7 N of push at 0.5 MPa, while stepping up to the SDA80 provides 2513.3 N. For the SDA63X120S, the safe working load is approximately 935 N (about 60% of the 0.5 MPa figure), translating to a vertical lift capacity of roughly 79.4 kg with a 2:1 safety margin. Keep in mind that a plain compact cylinder drifts if air pressure drops or the valve is centered; the fixed NBR bumper only decelerates the stroke end and does not function as a lock. To hold a load securely without live pressure, integrate an external rod lock or a pilot-operated check valve. Confirm your ordering essentials: 63 mm bore, 120 mm stroke, PT1/4 port, -S magnet, and female M10x1.5 rod end.
Quick checklist
At 0.5 MPa, this double-acting cylinder provides 1558.6 N of push and 1401.5 N of pull. At 0.7 MPa, the push increases to 2182.1 N. The theoretical maximum push force is 318 kgf at the 1.0 MPa operating pressure limit.
No, the piston will drift if air is lost or the valve is centered. The fixed NBR bumper only decelerates the rod near the stroke end and does not act as a brake. To maintain position, you must install an external rod lock or a pilot-operated check valve.
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