Airtac SCD Standard Cylinder SCD100X450S
The AirTAC Airtac SCD Standard Cylinder SCD100X450S 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 SCD100X450S
The SCD100X450S is a double-acting, double-rod pneumatic cylinder that outputs identical force in both directions because the piston rod extends through both end caps. At 0.5 MPa it provides 3681 N of thrust each way, scaling to 6626 N at the 0.9 MPa maximum operating pressure. The 25 mm diameter rod runs the full length of the cylinder, giving you a rear rod end that can carry a sensor flag, stopper bolt, or secondary tooling while naturally resisting rotation better than a single-rod design.
This 450 mm stroke model stays within the standard stroke range for the 100 mm bore, which goes up to 1500 mm. It includes a built-in magnet (the -S suffix) so you can mount CMSG, DMSG, or EMSG reed and solid-state sensors directly on the tie-rod barrel for non-contact position sensing. The adjustable air cushion at each end, 29 mm long, decelerates the piston smoothly, and the PT1/2 ports handle the high flow needed for a cylinder of this force class.
Airtac SCD Standard Cylinder SCD100X450S Technical Specifications
| Model | Airtac SCD Standard Cylinder SCD100X450S |
|---|---|
| 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 SCD100X450S
| 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 SCD100X450S Is Used
Two-Sided Transfer Shuttles
The through-rod design lets you mount identical grippers or nests on both ends, doubling throughput on a pick-and-place shuttle without adding a second actuator.
Balanced Push-Pull Clamping
Equal 3681 N force in extend and retract makes this cylinder ideal for clamping fixtures where the workpiece must be released with the same controlled force used to engage it.
Non-Rotating Pusher Stations
The twin-rod guidance provides better torsional stiffness than a single-rod cylinder, helping keep a pusher plate square without a separate external guide in light-duty sorting or diverting stations.
Is the Airtac SCD Standard Cylinder SCD100X450S the Right Cylinder?
Choose the SCD100 when you need roughly 3.7 kN of balanced force at standard plant air pressure. If your load can work with less thrust, stepping down to the SCD80 at 2268 N (0.5 MPa) saves space and air consumption. For heavier fixtures, the SCD125 jumps to 5734 N. This double-rod unit is the right call when you need to mount tooling on both ends or want the inherent anti-rotation of a through-rod; if you only need push force from one side and a shorter overall length, the single-rod SC100 is a better fit. At 450 mm of stroke, the long unsupported rod can experience bending under high side loads—add an external linear guide or switch to a guided cylinder if the load is not purely axial. For a drop-in replacement, match bore (100), stroke (450), PT port thread, basic mounting, and the -S magnet option.
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 SCD100X450S FAQ
Because it is a double-rod cylinder, the push and pull forces are equal. At 0.5 MPa it produces 3681 N, at 0.7 MPa it is 5153 N, and at the maximum operating pressure of 0.9 MPa it reaches 6626 N in both directions.
Pick the SCD100 when you need a rear rod extension for mounting sensors, cams, or secondary tooling, or when you require perfectly equal force and speed in both directions. The through-rod also provides better bearing support and some resistance to rotation. If you only need force from one rod end and want a more compact cylinder, the SC100 single-rod model is the better choice.
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