Airtac STA Single Acting Compact Guided Cylinder STA12X5B
The AirTAC Airtac STA Single Acting Compact Guided Cylinder STA12X5B is a genuine single-acting COMPACT cylinder (single acting, pull type) with a Ø12mm bore and 5mm 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.
- BoreØ12 mm
- Stroke5 mm
- Port sizeM5×0.8
- Acting typeSingle acting, pull type
- Rod threadM3×0.5 (F) / M5×0.8 (B)
- CushionFixed NBR bumper
About the Airtac STA Single Acting Compact Guided Cylinder STA12X5B
The AirTAC STA12X5B is a compact single-acting pull-type cylinder. Air pressure retracts the 6 mm rod, while an internal spring extends it when air is released. It provides 32.4 N of net pull at 0.5 MPa and 49.4 N at 0.7 MPa.
This 12 mm bore model features a short riveted body that minimizes axial mounting depth. It uses a fixed NBR bumper to decelerate the stroke end and has a male M5x0.8 threaded rod end. Without a piston magnet, it cannot accept position switches.
Airtac STA Single Acting Compact Guided Cylinder STA12X5B Technical Specifications
| Model | Airtac STA Single Acting Compact Guided Cylinder STA12X5B |
|---|---|
| Series | STA compact single-acting cylinder |
| Bore size | Ø12 mm |
| Stroke | 5 mm |
| Acting type | Single acting, pull type |
| Port size | M5×0.8 |
| Rod end thread | M3×0.5 female / M5×0.8 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.
Net Output Force (Ø12mm, Pull)
| Pressure | Pull force (net) |
|---|---|
| 0.5 MPa | 32 N |
| 0.7 MPa | 49 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.
Model Code: Airtac STA Single Acting Compact Guided Cylinder STA12X5B
| STA | Compact single acting, pull type cylinder series. |
|---|---|
| 12 | Bore size in mm. |
| ×5 | 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).
Where the Airtac STA Single Acting Compact Guided Cylinder STA12X5B Is Used
Clamp Release Mechanism
Uses the 32.4 N pull to retract a small tension pin, allowing a spring-loaded clamping jaw to open safely.
Package Diverter Arm
Pulls a lightweight guide flap inward during the 5 mm stroke to let small cartons pass on a tight conveyor.
Bin Lid Return
Draws a compact discharge door shut via the male M5 rod, relying on the internal spring to push it open.
Is the Airtac STA Single Acting Compact Guided Cylinder STA12X5B the Right Cylinder?
This 12 mm bore yields 32.4 N net pull at 0.5 MPa, offering a safe working load of roughly 19 N for a 2:1 margin. If your task requires less force, note that the next size up, the STA16, increases output to 66.4 N at 0.5 MPa. The 5 mm stroke sits well below the 30 mm series maximum.
Because the spring constantly extends the rod, the STA12X5B will not hold a mid-stroke load without live air pressure. This specific configuration includes the male M5x0.8 rod thread (-B) and lacks the magnet option, meaning no reed or electronic sensing is possible. Operating pressure must be 0.2-1.0 MPa to overcome the spring.
Quick checklist
- ✓ Net pull force at your working pressure
- ✓ Stroke ≤ 30 mm (single-acting limit)
- ✓ Single air line saves a valve/port
- ✓ Magnet (S) for sensors?
- ✓ Female (blank) or male (B) rod thread
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.2 – 1.0 MPa operating pressure.
- check Remember the spring performs the return stroke.
- check Avoid side load on the short piston rod.
- check Front/rear covers are riveted — do not dismantle.
- check Installation by qualified personnel per AirTAC docs.
Airtac STA Single Acting Compact Guided Cylinder STA12X5B FAQ
The STA12X5B provides 32.4 N of net pull at 0.5 MPa and 49.4 N at 0.7 MPa. It requires an operating pressure of 0.2-1.0 MPa, as at least 0.2 MPa is needed to overcome the internal return spring.
No, this specific SKU does not include the -S option, so it lacks a piston magnet and cannot accept reed or electronic switches. You would need the STA12X5BS variant for position sensing.
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