
The AirTAC Airtac STA Single Acting Compact Guided Cylinder STA63X30B is a genuine single-acting COMPACT cylinder (single acting, pull type) with a Ø63mm bore and 30mm stroke. Air pulles the rod and an internal spring returns it, so one solenoid line drives the motion — ideal for short-stroke clamping and ejection in tight spaces.
The AirTAC STA63X30B is a 63 mm bore compact single-acting pull-type cylinder. Compressed air retracts the 20 mm rod, while an internal spring extends it back out, leaving the unit normally extended at rest. It yields 1225.5 N of net pull at 0.5 MPa and 1786.2 N at 0.7 MPa. This male-thread variant uses an M18x1.5 rod end and a PT1/4 port.
Designed to save axial mounting depth, the short riveted body fits where standard round-body or profile cylinders cannot. It operates between 0.2 and 1.0 MPa, needing at least 0.2 MPa to overcome the spring. End-of-stroke deceleration relies on a fixed NBR bumper rather than an adjustable air cushion. This SKU lacks a piston magnet, so it cannot host reed or electronic switches without the -S option.
| Model | Airtac STA Single Acting Compact Guided Cylinder STA63X30B |
|---|---|
| Series | STA compact single-acting cylinder |
| Bore size | Ø63 mm |
| Stroke | 30 mm |
| Acting type | Single acting, pull type |
| Port size | PT1/4 |
| Rod end thread | M10×1.5 female / M18×1.5 male (B) |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.2 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 50 – 500 mm/s |
| Cushion | Fixed NBR bumper |
| Max standard stroke | Up to 30 mm |
Specifications follow the official AirTAC SDA-family datasheet. Single-acting types start at 0.2 MPa (the spring must be overcome). Confirm against the product label before installation.
| Pressure | Pull force (net) |
|---|---|
| 0.5 MPa | 1226 N |
| 0.7 MPa | 1786 N |
These are NET output forces — the return-spring force is already deducted. Single-acting pull only; the spring performs the opposite stroke. Size with a safety margin.
| STA | Compact single acting, pull type cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×30 | Stroke length in mm (single-acting max 30 mm). |
| S | Built-in magnet for magnetic-switch sensing (omit = none). |
| B | Male-thread piston rod (omit = female thread). |
Thread: PT standard. SSA pushes out / spring returns; STA pulls in / spring extends. Related: SDA (double acting), SDAD (double rod), SDAJ (adjustable stroke).
Pulls heavy cables or straps with 1225.5 N net force at 0.5 MPa, releasing tension instantly when air pressure drops.
Lifts a vertical load of roughly 62.5 kg with a 2:1 safety margin before the internal spring pushes the load back out.
Holds a heavy industrial gate open via spring force, using the 1786.2 N air pull at 0.7 MPa to retract and close the mechanism.
Sizing this model requires comparing its 1225.5 N net pull at 0.5 MPa against adjacent bores. Stepping down, the STA50 provides 717.7 N at the same pressure, representing a 507.8 N drop in capacity. As the largest single-acting bore available, there is no larger STA option for higher loads. The 30 mm stroke hits the absolute maximum standard limit for this series.
Because the spring constantly drives the rod out, the STA63X30B will not hold a mid-stroke load on air loss; it always fails to the extended position. Use a double-acting SDA with an external rod lock if you require mid-stroke holding. Confirm your build needs the male M18x1.5 thread, the PT1/4 port, and no magnet before ordering.
Quick checklist
The net pull force is 1225.5 N at 0.5 MPa and 1786.2 N at 0.7 MPa. These values already account for the internal return spring, so you can size directly to them without further subtraction.
No, this specific SKU does not include a piston magnet. To use AirTAC reed or electronic switches, you must select the -S variant. Also, since it is spring-extended, it requires at least 0.2 MPa of air pressure to overcome the spring and retract the rod.
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