The AirTAC Airtac SCD Standard Cylinder SCD63X30 is a genuine double-acting DOUBLE-ROD air cylinder: the Ø20mm piston rod extends from BOTH end caps, giving equal effective area — and therefore equal force — in push and pull. Ø63mm bore, 30mm stroke, PT1/4 ports and adjustable end cushioning.
The SCD63X30 is a compact-stroke double-rod pneumatic cylinder that delivers exactly 1402 N of force in both directions at 0.5 MPa, making it ideal for short, symmetrical push-pull tasks. Its through-rod design places a 20 mm diameter rod on both ends, providing equal speed and thrust for two-sided tooling or a rear-mounted sensor flag on a 30 mm stroke.
With a body length A(SCD) of 210 mm and an adjustable air cushion of 28 mm, this genuine AirTAC cylinder decelerates the piston smoothly at each end of its short travel. The PT1/4 ports and M16x1.5 rod thread suit compact automation cells where space is tight but balanced force is non-negotiable.
| Model | Airtac SCD Standard Cylinder SCD63X30 |
|---|---|
| Series | SCD double-rod tie-rod cylinder |
| Bore size | Ø63 mm |
| Rod diameter | Ø20 mm (both ends) |
| Stroke | 30 mm |
| Rod configuration | Double rod — rod through both caps |
| Acting type | Double acting |
| Port size | PT1/4 |
| Rod thread | M16×1.5 |
| 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, 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 | 1402 N | 1402 N |
| 0.7 MPa | 1962 N | 1962 N |
| Max (@1.0 MPa) | 286 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). |
|---|---|
| 63 | Bore size in mm. |
| ×30 | 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 push-pull force of 1402 N at 0.5 MPa and a rod on both ends let this 30 mm stroke cylinder shuttle a small pallet or fixture between two closely spaced stations with identical motion profiles.
Use the rear rod extension to mount a confirmation sensor or a mechanical stop, creating a self-contained clamping unit that verifies position without adding length to the front tooling.
The 20 mm through-rod and 28 mm cushion make this cylinder suitable for ejecting a light part from a nest while simultaneously resetting a rear linkage, all within a 30 mm working envelope.
Choose the SCD63X30 when you need a short, balanced stroke with 1402 N of force each way at 0.5 MPa. If your application demands more force, step up to the SCD80 bore, which provides 2268 N at the same pressure. For a single-rod alternative with a full-bore push force, consider the SC63 series, but note you will lose the rear rod access and equal bidirectional thrust.
To replace an existing SCD63X30, match the 63 mm bore, 30 mm stroke, PT port thread, and basic mounting style exactly. If you require a magnet for position sensing, specify the -S suffix; for a centre-trunnion pivot mount, choose the TC option with the F-SC63TC bracket.
Double-rod checklist
Because the piston rod passes through both end caps, the effective pressure area is identical in both directions. The SCD63X30 produces 1402 N pushing and 1402 N pulling at 0.5 MPa, rising to 2523 N in both directions at the maximum operating pressure of 0.9 MPa.
Pick the SCD63X30 when you need to mount tooling, a sensor flag, or a stop on the rear end, or when the load must be guided more evenly through the bearings. The single-rod SC63 provides a higher push force on the full-bore side, but its pull force is lower and it offers no rear rod access.
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