The AirTAC Airtac SCD Standard Cylinder SCD100X600S is a genuine double-acting DOUBLE-ROD air cylinder: the Ø25mm piston rod extends from BOTH end caps, giving equal effective area — and therefore equal force — in push and pull. Ø100mm bore, 600mm stroke, PT1/2 ports and adjustable end cushioning.
This SCD100X600S double-rod cylinder produces an identical 3681 N of force in both the extend and retract strokes when supplied with 0.5 MPa air, thanks to its through-rod design that subtracts the Ø25 mm rod area from both piston sides. The 600 mm stroke is well within the 1500 mm maximum standard stroke for the 100 mm bore, and the PT1/2 ports with 29 mm of adjustable air cushioning at each end deliver controlled deceleration for symmetrical tooling motions.
The built-in magnet, denoted by the -S suffix, allows you to clamp CMSG, DMSG, or EMSG reed or solid-state sensors directly onto the tie-rod barrel for non-contact end-of-stroke sensing from either side of the assembly. This genuine AirTAC SCD unit is a tie-rod cylinder, not an ISO 15552 profile, and is built for applications where a rear rod extension is needed for a stopper bolt, sensor flag, or secondary tooling.
| Model | Airtac SCD Standard Cylinder SCD100X600S |
|---|---|
| Series | SCD double-rod tie-rod cylinder |
| Bore size | Ø100 mm |
| Rod diameter | Ø25 mm (both ends) |
| Stroke | 600 mm |
| Rod configuration | Double rod — rod through both caps |
| Acting type | Double acting |
| Port size | PT1/2 |
| Rod thread | M20×1.5 |
| 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, 29 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 | 3682 N | 3682 N |
| 0.7 MPa | 5154 N | 5154 N |
| Max (@1.0 MPa) | 751 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). |
|---|---|
| 100 | Bore size in mm. |
| ×600 | 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 rod extending from both caps lets you mount a gripper on the front and a counterbalance or secondary tool on the rear, moving a part between two stations with equal speed and force in each direction.
With the -S magnet, a DMSG sensor on the rear tie-rod detects the piston's position without intruding on the front work zone, ideal for confirming retraction in a confined space.
The through-rod provides inherent anti-rotation better than a single-rod cylinder, making it a strong starting point for a push-pull station when combined with an external guide for side-load management.
Choose this 100 mm bore when your mechanism requires a balanced 3681 N at 0.5 MPa in both directions. If your force budget is lower, the 80 mm bore SCD80 delivers 2268 N; for a step up, the SCD125 provides 5734 N. For applications needing only a single working end, the single-rod SC100 is a simpler alternative, but it will not give you the rear rod for dual-sided actuation or the improved bearing support of a through rod. At a 600 mm stroke, be mindful of the long unsupported rod columns on both ends—if your tooling applies any side load, add an external linear guide or switch to a guided cylinder to prevent rod bending. To replace an existing SCD100, match the bore, 600 mm stroke, PT port thread, basic mounting, and the -S magnet option.
Double-rod checklist
The push and pull forces are equal because the piston rod passes through both end caps. At 0.5 MPa, both directions produce 3681 N. At the maximum operating pressure of 0.9 MPa, the force is 6626 N in both extend and retract.
Pick the SCD when you need a working rod on both ends of the cylinder for tasks like dual-sided tooling, mounting a sensor flag on the rear, or achieving better rod guidance. The single-rod SC provides a higher push force for the same bore because the full piston area is used on the extend stroke, but it cannot provide a rear actuation point.
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