The AirTAC Airtac SCD Standard Cylinder SCD63X120TC 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, 120mm stroke, PT1/4 ports and adjustable end cushioning.
The SCD63X120TC is a double-acting, double-rod pneumatic cylinder delivering perfectly symmetrical force in both directions—1402 N push and 1402 N pull at 0.5 MPa, rising to 2523 N at 0.9 MPa. Because the 20 mm piston rod extends from both end caps, the effective pressure area is identical on each side, making this actuator ideal for applications where balanced speed and thrust are non-negotiable. The centre trunnion mount (TC) allows the entire cylinder body to pivot, accommodating angular movement in the driven load.
This 63 mm bore model uses a PT1/4 port and an M16x1.5 rod thread, with an adjustable air cushion of 28 mm at each end to decelerate the piston smoothly. The body length A(SCD) is 210 mm, and the through-rod design provides better bearing support than a single-rod cylinder of the same size, helping resist minor off-axis forces. The TC mount ships complete with the TCM1 trunnion bracket (order reference F-SC63TC), ready for pinning into a clevis structure.
| Model | Airtac SCD Standard Cylinder SCD63X120TC |
|---|---|
| Series | SCD double-rod tie-rod cylinder |
| Bore size | Ø63 mm |
| Rod diameter | Ø20 mm (both ends) |
| Stroke | 120 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. |
| ×120 | 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 and centre trunnion mount let this cylinder drive a shuttle table back and forth with identical acceleration and deceleration in both directions, simplifying flow control settings.
With a rod protruding from both ends, mount a primary tool on the front and a counter-support or secondary striker on the rear rod, keeping the load symmetric and reducing bushing wear.
The TC trunnion mount allows the entire 63 mm bore cylinder to swing as it extends and retracts, making it a clean solution for opening and closing a pivoting gate or clamp arm with balanced force.
Choose the SCD63 bore when your load requires roughly 1400 N of force in both directions at standard plant pressure. If you need more thrust, the SCD80 double-rod cylinder steps up to 2268 N at 0.5 MPa. For purely linear, end-mounted pushing with no rear-rod access, the single-rod SC63 series is a simpler and more compact alternative. When replacing an existing unit, match five points: 63 mm bore, 120 mm stroke, PT port thread, the TC centre-trunnion mounting style, and the absence of a magnet (this model has no -S suffix). At this 120 mm stroke, rod deflection is minimal under axial loads, but if the application imposes any significant side force, an external guide rail or a guided cylinder should be used rather than relying on the double-rod bearings alone.
Double-rod checklist
Because it is a double-rod cylinder, push and pull forces are equal. At 0.5 MPa it produces 1402 N, at 0.7 MPa it delivers 1962 N, and at the maximum operating pressure of 0.9 MPa the output is 2523 N in both directions.
A double-rod cylinder gives you identical force and speed in both directions, a rear rod extension for mounting sensors or additional tooling, and improved rod guidance from the two-bearing support. It is the right choice when symmetry matters—but it does not hold position if air pressure is lost; an external lock is needed for that.
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.