The AirTAC AirTAC SDA63X140 Compact Cylinder | 63mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø63mm bore and 140mm 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 SDA63X140 is a double-acting single-rod compact cylinder engineered to deliver a substantial 1558.6 N push force at 0.5 MPa. Its riveted assembly merges the barrel, rear cover, piston, and rod to minimize axial mounting depth, offering a highly space-efficient footprint compared to conventional round-body units. This specific 140 mm stroke configuration exceeds the 130 mm standard maximum for this bore size, classifying it as a non-standard, made-to-order item.
This model features a hard-anodized bore and a fixed NBR bumper at each end to decelerate the piston near stroke limits. Because it lacks the optional -S piston magnet, it cannot support magnetic position sensing. Operating at speeds of 30-500 mm/s, the unit utilizes a PT1/4 port and a 20 mm rod. The fixed bumper is not an adjustable air cushion, so high-energy cycles may require external shock absorbers.
| Model | AirTAC SDA63X140 Compact Cylinder | 63mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø63 mm |
| Stroke | 140 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. |
| ×140 | 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 where the short riveted body saves axial depth, though the 140 mm non-standard stroke requires a custom mold base.
Raises a 75 kg machining fixture vertically, staying safely within the 79.4 kg computed lift limit with a 2:1 margin at 0.5 MPa operating pressure.
Pushes heavy corrugated cartons into a sealing station, utilizing the 1558.6 N extend force to overcome sliding friction without stalling.
When sizing this actuator, compare its 1558.6 N push at 0.5 MPa against adjacent bores: stepping down to the SDA50 yields 981.7 N, while stepping up to the SDA80 provides 2513.3 N. Based on the 0.5 MPa figure, the computed safe working load is approximately 935 N (60% capacity), translating to a vertical lift capability of about 79.4 kg with a 2:1 safety margin. Note that a plain SDA cylinder does not hold its load if air pressure is lost or the valve is centered, as the piston will drift and the fixed bumper only decelerates near the stroke end. For suspended loads, an external rod lock or pilot-operated check valve is required. To order, confirm the 63 mm bore, 140 mm non-standard stroke, PT1/4 port, female rod-end thread (M10x1.5), and the absence of a sensor magnet.
Quick checklist
This 63 mm bore double-acting cylinder provides 1558.6 N push and 1401.5 N pull at 0.5 MPa, and 2182.1 N push and 1962.2 N pull at 0.7 MPa. The theoretical maximum push force is 318 kgf at 1.0 MPa. The 140 mm stroke exceeds the 130 mm standard maximum for this bore, making it a non-standard, made-to-order configuration.
No, this specific SKU does not include the -S piston magnet, so it cannot support AirTAC reed or electronic switches. Additionally, it relies on a fixed NBR bumper to decelerate at stroke ends rather than an adjustable air cushion, so you may need external shock absorbers for high-speed operations.
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