The AirTAC Airtac SCD Standard Cylinder SCD63X35 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, 35mm stroke, PT1/4 ports and adjustable end cushioning.
The SCD63X35 is a double-acting, double-rod pneumatic cylinder that provides perfectly symmetrical force in both directions, delivering 1402 N of thrust at 0.5 MPa. With a 20 mm diameter rod protruding from both end caps, this 63 mm bore unit is ideal for short-stroke applications where a rear rod connection is needed for tooling, a stopper, or an external sensor flag.
At 35 mm of stroke, this model operates well within the standard range for the 63 bore, which extends up to 1500 mm. The body length A(SCD) is 210 mm, and the adjustable air cushion at each end (28 mm) provides smooth deceleration, making it a compact yet powerful solution for precise, two-sided actuation tasks.
| Model | Airtac SCD Standard Cylinder SCD63X35 |
|---|---|
| Series | SCD double-rod tie-rod cylinder |
| Bore size | Ø63 mm |
| Rod diameter | Ø20 mm (both ends) |
| Stroke | 35 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. |
| ×35 | 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.
Operates a shuttle table or small transfer mechanism where a tool can be mounted on both the front and rear rods for balanced, two-station part handling.
Provides equal force from both ends to simultaneously close two opposing clamps or fixtures from a single cylinder body, ensuring uniform pressure.
The through-rod design offers inherent anti-rotation stability, making it a reliable short-stroke pusher or ejector where maintaining rod orientation is critical.
This 63 mm bore cylinder suits applications needing balanced push-pull force around 1400 N at standard plant pressure. If your load requires significantly less force, stepping down to the 50 mm bore SCD50 series offers 825 N at 0.5 MPa in a lighter package. For higher demands, the 80 mm bore provides 2268 N. Remember that an SCD double-rod cylinder is not a guided unit; if your 35 mm stroke application involves any side load, an external guide rail or a dedicated guided cylinder is mandatory to prevent premature rod bearing wear.
Double-rod checklist
Because it is a double-rod cylinder, the push and pull forces are identical. At 0.5 MPa it produces 1402 N, at 0.7 MPa it produces 1962 N, and at the maximum operating pressure of 0.9 MPa it delivers 2523 N of thrust in both directions.
Choose the SCD when you need to attach tooling, stops, or sensors to both ends of the piston rod, or when you require perfectly equal force and speed in both directions. The dual-rod support also provides better guidance and anti-rotation than a single-rod cylinder, though it is not a replacement for a fully guided actuator under side loads.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.