Airtac SCD Standard Cylinder SCD100X270LB
The AirTAC Airtac SCD Standard Cylinder SCD100X270LB 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, 270mm stroke, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Rod (both ends)Ø25 mm
- Stroke270 mm
- Port sizePT1/2
- Rod configDouble rod (through)
- CushionAdjustable, 29 mm
About the Airtac SCD Standard Cylinder SCD100X270LB
This SCD100X270LB double-rod cylinder provides a perfectly symmetrical 3681 N of force in both directions at 0.5 MPa, rising to a substantial 6626 N at the maximum operating pressure of 0.9 MPa. The 25 mm diameter rod passes through both end caps, giving you an identical powered stroke on each side of the piston for tasks that demand balanced thrust and speed. With a 270 mm stroke and a body length A(SCD) of 263 mm, it is a compact solution for medium-reach, dual-action tooling.
The LB foot-mount configuration allows the cylinder body to be bolted directly onto a machine bed or fixture, providing a stable, rigid base for the through-rod to work against. This model uses the standard PT port thread and TPU seals, making it suitable for general industrial environments from -20 to +70 °C. The adjustable air cushion on each end cap decelerates the piston smoothly over the final 29 mm of travel, protecting the end caps from impact without any external shock absorbers.
Airtac SCD Standard Cylinder SCD100X270LB Technical Specifications
| Model | Airtac SCD Standard Cylinder SCD100X270LB |
|---|---|
| Series | SCD double-rod tie-rod cylinder |
| Bore size | Ø100 mm |
| Rod diameter | Ø25 mm (both ends) |
| Stroke | 270 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 SCD100X270LB
| SCD | Double-rod tie-rod cylinder series (rod out both ends). |
|---|---|
| 100 | Bore size in mm. |
| ×270 | 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 SCD100X270LB Is Used
Bidirectional Transfer Shuttles
The equal 3681 N push and pull force at 0.5 MPa makes this cylinder ideal for shuttle tables that move a pallet or workpiece between two stations with identical speed and power in each direction.
Dual-Sided Stamping or Pressing
With a rod extending from both ends, you can mount a stamping die on the front and a counter-die or ejector on the rear, performing two operations in a single actuation cycle.
Rear-Mounted Stroke Sensing
The rear rod provides a convenient, clean surface to attach a sensor flag or a secondary limit switch cam, keeping the sensing mechanism away from the harsh front-end work zone.
Is the Airtac SCD Standard Cylinder SCD100X270LB the Right Cylinder?
The SCD100 is a strong mid-range double-rod actuator. If your application requires more force, stepping up to the SCD125 bore will give you 5734 N at 0.5 MPa, while a step down to the SCD80 provides 2268 N. For this 270 mm stroke, the dual-rod design offers better bearing support than a single-rod SC cylinder, but it is not a guided unit; if your tooling applies a significant side load, you should pair it with an external guide rail or switch to a dedicated guided cylinder to prevent rod bending. To replace an existing unit, match the 100 mm bore, 270 mm stroke, PT port thread, LB foot mounting, and ensure the replacement is a genuine AirTAC SCD double-rod 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 SCD100X270LB FAQ
Because it is a double-rod cylinder, the push and pull forces are identical. At 0.5 MPa it outputs 3681 N, at 0.7 MPa it outputs 5153 N, and at the maximum operating pressure of 0.9 MPa it reaches 6626 N.
Choose an SCD when you need perfectly balanced force and speed in both directions, or when you need to mount tooling or sensors on a rear rod. The through-rod design also provides better guidance and resistance to rod deflection than a single-rod cylinder of the same bore, though it is not a replacement for a fully guided actuator under heavy side loads.
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