The AirTAC AirTAC SDA63X70SH Compact Cylinder | 63mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø63mm 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 SDA63X70SH is a double-acting, single-rod compact cylinder engineered to deliver 1558.6 N of push force at 0.5 MPa. Its riveted assembly joins the barrel, rear cover, piston, and rod into a highly space-efficient unit, drastically reducing axial mounting depth compared to conventional round-body designs. This specific configuration includes a built-in piston magnet for position sensing and fluororubber (FKM) seals for enhanced thermal and oil resistance.
Equipped with a 20 mm piston rod and PT1/4 ports, this model handles a 70 mm stroke within its 130 mm standard limit. The bore relies on a fixed NBR bumper at each end to decelerate the stroke, meaning it is not a field-adjustable air cushion. For high-energy cycles, operators should slow the approach or mount an external shock absorber. Grooves around the body accept AirTAC reed or electronic switches when tracking position.
| Model | AirTAC SDA63X70SH Compact Cylinder | 63mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø63 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 | 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. |
| ×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).
Drives ejection pins on mid-sized plastic molding machines where the 1558.6 N extension force reliably strips parts, and the FKM seals withstand residual heat.
Folds corrugated carton flaps on high-speed packaging lines, utilizing the 70 mm stroke and compact body to fit within tight conveyor side frames.
Advances strip material into a mechanical press, using the male M18x1.5 rod thread to secure the feed claw while the sensor magnet tracks the stroke.
When sizing this unit, evaluate your force requirements carefully. Stepping down to an SDA50 yields 981.7 N of push at 0.5 MPa, while stepping up to an SDA80 provides 2513.3 N. The 63 mm bore offers a safe working load of roughly 935 N (about 60% of the 0.5 MPa figure) and a vertical lift capacity near 79.4 kg with a 2:1 safety margin. Confirm your ordering essentials: 63 mm bore, 70 mm stroke, PT1/4 port, male M18x1.5 rod thread, magnetic piston, and FKM seals.
Note that a standard actuator cannot hold a load if air pressure drops or the valve centers. The piston will drift, and the fixed bumper only slows travel near the stroke end rather than locking it. If your application demands strict position holding, incorporate an external rod lock or a pilot-operated check valve.
Quick checklist
At 0.5 MPa, push is 1558.6 N and pull is 1401.5 N. At 0.7 MPa, push is 2182.1 N and pull is 1962.2 N. The theoretical maximum push is 318 kgf at 1.0 MPa. Operating pressure ranges from 0.15 to 1.0 MPa, with a proof pressure of 1.5 MPa.
It uses a fixed NBR bumper to decelerate the piston at the ends, which is not an adjustable air cushion. If air is lost, the actuator will drift; it does not lock. For position holding without live pressure, install an external rod lock or pilot-operated check valve.
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