The AirTAC Airtac SCD Standard Cylinder SCD32X250S is a genuine double-acting DOUBLE-ROD air cylinder: the Ø12mm piston rod extends from BOTH end caps, giving equal effective area — and therefore equal force — in push and pull. Ø32mm bore, 250mm stroke, PT1/8 ports and adjustable end cushioning.
The SCD32X250S is a compact double-rod pneumatic cylinder that provides identical force in both directions—345 N at 0.5 MPa—because the 12 mm rod passes through both end caps. With a 250 mm stroke, it is well-suited for light-duty two-sided tooling, transfer gates, or applications where you need to mount a sensor flag or mechanical stop on the rear rod end.
This model includes a built-in magnet (-S suffix), allowing you to clamp CMSG, DMSG, or EMSG reed or solid-state sensors directly onto the tie-rod barrel for non-contact position sensing. The body length (A dimension) is 187 mm, and the adjustable pneumatic cushion at each end is 21 mm long, helping to decelerate the piston smoothly within the standard 30-800 mm/s speed range.
| Model | Airtac SCD Standard Cylinder SCD32X250S |
|---|---|
| Series | SCD double-rod tie-rod cylinder |
| Bore size | Ø32 mm |
| Rod diameter | Ø12 mm (both ends) |
| Stroke | 250 mm |
| Rod configuration | Double rod — rod through both caps |
| Acting type | Double acting |
| Port size | PT1/8 |
| Rod thread | M10×1.25 |
| 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 – 800 mm/s |
| Cushion | Adjustable, 21 mm |
| Max stroke | Up to 1000 mm |
Specifications follow the official AirTAC SCD (double-rod) datasheet. Because the rod runs through both caps, the effective area is (bore² − rod²) in both directions. Confirm against the product label before installation. Thread options: PT (standard) / G.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 346 N | 346 N |
| 0.7 MPa | 484 N | 484 N |
| Max (@1.0 MPa) | 70 kgf | |
Push and pull are EQUAL on a double-rod cylinder — both chambers lose the rod area, so effective area = (bore² − rod²) each way. Actual usable force is lower than theoretical due to friction and back-pressure; size with a safety margin.
| SCD | Double-rod tie-rod cylinder series (rod out both ends). |
|---|---|
| 32 | Bore size in mm. |
| ×250 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related types: SC (single rod), SCJ (adjustable stroke), SCT (multi-position). SCD mounting: Basic, FA, LB, TC, TCM1. Seals: TPU standard / H = Viton / N = NBR. Thread: blank = PT, G = G thread.
Operate tooling on both ends of the cylinder simultaneously with equal force and speed, perfect for symmetrical clamping or stamping fixtures where a single rod is insufficient.
The built-in magnet lets you mount sensors on the barrel to detect piston position, while the rear rod extension provides a convenient surface for a mechanical sensor flag or trip dog.
Use the 250 mm stroke and 345 N force to shuttle small components between two conveyor lanes or workstations, with the rear rod available to trigger the next sequence step.
Choose the SCD32 when your application needs equal push and pull force in a small footprint and the 345 N output at 0.5 MPa is sufficient. If you require more force, stepping up to the SCD40 provides 528 N at the same pressure. For tasks that only need a working stroke in one direction, the single-rod SC series is a simpler and more cost-effective choice. Remember that a through-rod offers better guidance than a single rod, but it is not a replacement for a guided cylinder under significant side loads.
To replace an existing SCD32X250S, match five points: 32 mm bore, 250 mm stroke, PT port thread, the basic mounting style (no bracket), and the built-in magnet (-S). The cylinder is not dimensionally interchangeable with ISO 15552 profiles.
Double-rod checklist
Because it is a double-rod cylinder, the push and pull forces are identical. At 0.5 MPa it outputs 345 N, at 0.7 MPa it outputs 483 N, and at the maximum operating pressure of 0.9 MPa it reaches 621 N in both directions.
Choose an SCD double-rod cylinder when you need equal force and speed in both directions, or when you require a rear rod extension to mount tooling, a stopper, or a sensor flag. The through-rod design also provides better support for the piston rod, reducing bushing wear compared to a single-rod cylinder in applications with minor side forces.
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