The AirTAC Airtac SCD Standard Cylinder SCD125X1000S is a genuine double-acting DOUBLE-ROD air cylinder: the Ø32mm piston rod extends from BOTH end caps, giving equal effective area — and therefore equal force — in push and pull. Ø125mm bore, 1000mm stroke, PT1/2 ports and adjustable end cushioning.
The SCD125X1000S is a large-bore double-rod pneumatic cylinder that outputs exactly 5734 N of thrust in both directions at 0.5 MPa, thanks to its symmetrical piston design. With a 32 mm rod passing through both end caps, this ISO 6430 class actuator provides equal force and speed for push and pull strokes, making it ideal for heavy-duty tooling that must be mounted on both sides of the piston.
This 1000 mm stroke model includes a built-in magnet (denoted by the -S suffix), allowing direct mounting of CMSG, DMSG, or EMSG sensors along the tie-rod barrel for non-contact position feedback. The adjustable air cushion at each end is 28 mm long, and the retracted body length A(SCD) is 291 mm, providing a robust platform for symmetrical, high-force linear tasks.
| Model | Airtac SCD Standard Cylinder SCD125X1000S |
|---|---|
| Series | SCD double-rod tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Rod diameter | Ø32 mm (both ends) |
| Stroke | 1000 mm |
| Rod configuration | Double rod — rod through both caps |
| Acting type | Double acting |
| Port size | PT1/2 |
| Rod thread | M27×2 |
| 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 | Adjustable, 28 mm |
| Max stroke | Up to 1500 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 | 5734 N | 5734 N |
| 0.7 MPa | 8027 N | 8027 N |
| Max (@1.0 MPa) | 1169 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). |
|---|---|
| 125 | Bore size in mm. |
| ×1000 | 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.
The equal 5734 N push-pull force at 0.5 MPa drives a shuttle table or transfer cart in both directions with identical speed and power, simplifying flow control and ensuring smooth, predictable cycling in automated lines.
With a 32 mm rod extending from both ends, the cylinder can simultaneously actuate two opposing clamp arms or forming dies from a single air circuit, guaranteeing mechanical synchronization without complex linkages.
The integrated magnet (-S) works with barrel-mounted sensors on either side. The rear rod provides a perfect mounting point for a secondary sensor flag or a manual position indicator, keeping the front tooling area clear.
Choose the SCD125 when your application demands equal bidirectional force; at 0.5 MPa it provides 5734 N, a significant step up from the SCD100 which delivers 3681 N. If your load is asymmetric and you only need full force in one direction, a single-rod SC125 cylinder would be a more economical choice. For strokes of 1000 mm, always assess the potential for rod buckling under compression and consider an external guide rail or switch to a guided cylinder if significant side loads are present.
This SCD125X1000S is a direct dimensional replacement only for another AirTAC SCD125 double-rod cylinder matching the 125 mm bore, 1000 mm stroke, PT port thread, basic mounting, and the -S magnet option. The built-in magnet is essential for applications requiring sensor-based end-of-stroke detection without adding external flag brackets to the rear rod.
Double-rod checklist
Because the piston rod passes through both ends, the effective pressure area is identical for both directions. The force is 5734 N at 0.5 MPa, 8028 N at 0.7 MPa, and reaches 10321 N at the maximum operating pressure of 0.9 MPa.
Choose the SCD when you need perfectly equal force and speed in both directions, or when you need to mount tooling, a stopper, or a sensor flag on the rear rod. The through-rod design also provides better guidance and inherent anti-rotation compared to a single-rod cylinder of the same bore.
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