Airtac SCD Standard Cylinder SCD100X300S
The AirTAC Airtac SCD Standard Cylinder SCD100X300S 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, 300mm stroke, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Rod (both ends)Ø25 mm
- Stroke300 mm
- Port sizePT1/2
- Rod configDouble rod (through)
- CushionAdjustable, 29 mm
About the Airtac SCD Standard Cylinder SCD100X300S
The SCD100X300S is a double-acting, double-rod pneumatic cylinder that provides identical thrust in both directions—3681 N at 0.5 MPa—because the 25 mm rod passes through both end caps. This symmetry eliminates force differentials, making it ideal for applications where a tool or sensor flag is mounted on the rear rod end.
With a 300 mm stroke and a body length A of 263 mm, this cylinder includes a built-in magnet (-S suffix), allowing CMSG, DMSG, or EMSG sensors to be clamped directly onto the tie-rod barrel for non-contact position sensing. The adjustable air cushion at each end (29 mm) decelerates the piston smoothly, and the PT1/2 ports handle flow for speeds up to 800 mm/s.
Airtac SCD Standard Cylinder SCD100X300S Technical Specifications
| Model | Airtac SCD Standard Cylinder SCD100X300S |
|---|---|
| Series | SCD double-rod tie-rod cylinder |
| Bore size | Ø100 mm |
| Rod diameter | Ø25 mm (both ends) |
| Stroke | 300 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 SCD100X300S
| SCD | Double-rod tie-rod cylinder series (rod out both ends). |
|---|---|
| 100 | Bore size in mm. |
| ×300 | 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 SCD100X300S Is Used
Two-Sided Transfer Shuttles
The equal push/pull force of 3681 N at 0.5 MPa moves a shuttle table between two stations with identical speed and power in each direction, simplifying flow-control tuning.
Rear-Mounted Stroke Sensing
The built-in magnet and exposed rear rod let you mount a sensor flag on the back end to confirm full retraction, while DMSG sensors on the barrel detect intermediate positions.
Symmetric Clamping & Pressing
Use the front rod for pressing and the rear rod to drive a secondary linkage or counterbalance, all with the same 6626 N of force at 0.9 MPa, ensuring synchronized dual-sided actuation.
Is the Airtac SCD Standard Cylinder SCD100X300S the Right Cylinder?
Choose the SCD100 bore when your application needs roughly 3681 N of balanced force at 0.5 MPa. If you can accept a lower force of 2268 N, stepping down to an SCD80 reduces weight and air consumption. For applications that only require force from one side, a single-rod SC100 cylinder delivers a higher push force (4021 N at 0.5 MPa) because the full bore area is used on the push stroke.
At a 300 mm stroke, the unsupported rod length on both ends increases the risk of side-load deflection. If the load is not guided externally, consider adding an external guide rail or switching to a guided cylinder. For a direct replacement, match the 100 mm bore, 300 mm stroke, PT port thread, basic mounting, and the -S magnet option of this SCD model.
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 SCD100X300S FAQ
Because it is a double-rod cylinder, push and pull forces are identical. 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. The theoretical force at 1.0 MPa is 751 kgf.
Pick the SCD100 when you need equal force and speed in both directions, or when you require a rear rod extension for mounting tooling, a stopper bolt, or a position-sensing flag. A single-rod SC100 provides a higher push force (4021 N at 0.5 MPa) but a lower pull force, which is better for single-direction work.
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