Airtac SCD Standard Cylinder SCD100X450
The AirTAC Airtac SCD Standard Cylinder SCD100X450 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, 450mm stroke, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Rod (both ends)Ø25 mm
- Stroke450 mm
- Port sizePT1/2
- Rod configDouble rod (through)
- CushionAdjustable, 29 mm
About the Airtac SCD Standard Cylinder SCD100X450
The SCD100X450 is a 100 mm bore double-rod pneumatic cylinder that delivers identical push and pull force—3681 N at 0.5 MPa and 6626 N at the 0.9 MPa maximum operating pressure—because the 25 mm rod passes through both end caps. This symmetry eliminates force differentials, making it ideal for two-sided tooling, transfer mechanisms, and applications where a rear rod extension can carry a sensor flag or secondary tool.
With a 450 mm stroke, this cylinder is well within the 1500 mm maximum standard stroke for the 100 mm bore. The body length A(SCD) is 263 mm, and the adjustable air cushion at each end (29 mm cushion length) decelerates the piston smoothly. Ports are PT1/2, and the rod thread is M20x1.5. As a tie-rod cylinder, it is not an ISO 15552 profile, but it provides a robust, serviceable double-rod solution.
Airtac SCD Standard Cylinder SCD100X450 Technical Specifications
| Model | Airtac SCD Standard Cylinder SCD100X450 |
|---|---|
| Series | SCD double-rod tie-rod cylinder |
| Bore size | Ø100 mm |
| Rod diameter | Ø25 mm (both ends) |
| Stroke | 450 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.
Theoretical Output Force (Ø100mm, double rod)
| 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.
Model Code: Airtac SCD Standard Cylinder SCD100X450
| SCD | Double-rod tie-rod cylinder series (rod out both ends). |
|---|---|
| 100 | Bore size in mm. |
| ×450 | 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.
Where the Airtac SCD Standard Cylinder SCD100X450 Is Used
Two-Sided Actuation
The through-rod design provides equal force and speed in both directions, making it perfect for driving tooling on both sides of the piston, such as dual-end pressing or simultaneous clamping.
Transfer Shuttles
With 3681 N of balanced thrust at 0.5 MPa, the SCD100X450 can reliably push and pull a shuttle carriage across a 450 mm transfer distance, using the rear rod for a position-sensor flag.
Non-Rotating Pusher
The dual-rod support provides better inherent guidance than a single-rod cylinder, helping to resist rotation when pushing a load over a 450 mm stroke without a dedicated external guide.
Is the Airtac SCD Standard Cylinder SCD100X450 the Right Cylinder?
Choose the SCD100X450 when your application needs 3681 N of balanced force in both directions at standard plant air pressure. If your load requires more thrust, the SCD125 series steps up to 5734 N at 0.5 MPa. For less force, the SCD80 delivers 2268 N. This double-rod design is the right choice over a single-rod SC when you need a rear rod for a stopper, flag, or dual-end actuation, but it is not a substitute for a guided cylinder under significant side load. At 450 mm of stroke, ensure the rod is well-supported if any lateral force is present; an external guide or a guided cylinder is recommended for off-axis loads.
For a direct replacement, match the 100 mm bore, 450 mm stroke, PT port thread, and the SCD mounting style. If you need a magnet for barrel-mounted sensors, order the -S variant. This cylinder replaces any AirTAC SCD100X450 with the same options.
Double-rod checklist
- ✓ Need equal force / speed both directions?
- ✓ Rear rod for tooling, stopper or sensor flag?
- ✓ Better rod guidance / anti-rotation?
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Keep BOTH rod ends clear of side load and interference.
- check Adjust end cushion screws for smooth stops.
- check Use SCD mounting accessory (FA / LB / TC / TCM1).
- check Installation by qualified personnel per AirTAC docs.
Airtac SCD Standard Cylinder SCD100X450 FAQ
No. Because the 25 mm piston rod extends through both end caps, the effective pressure area is identical on both sides of the piston. The SCD100X450 delivers exactly 3681 N in both the extend and retract directions at 0.5 MPa.
Choose the SCD when you need a rear rod extension for mounting a sensor, a mechanical stop, or secondary tooling, or when you require perfectly equal force and speed in both directions. The single-rod SC provides a higher push force (4119 N at 0.5 MPa) but has a lower pull force due to the rod area on only one side.
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