Airtac SCD Standard Cylinder SCD100X75
The AirTAC Airtac SCD Standard Cylinder SCD100X75 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, 75mm stroke, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Rod (both ends)Ø25 mm
- Stroke75 mm
- Port sizePT1/2
- Rod configDouble rod (through)
- CushionAdjustable, 29 mm
About the Airtac SCD Standard Cylinder SCD100X75
The SCD100X75 is a double-acting, double-rod pneumatic cylinder that gives you exactly the same force and speed in both directions—3681 N at 0.5 MPa. Because the 25 mm rod passes through both end caps, the effective piston area is identical on the push and pull strokes, making it ideal for tasks where balanced, repeatable motion matters more than peak thrust in one direction.
With a 75 mm stroke and a body length A(SCD) of 263 mm, this tie-rod cylinder fits compact two-sided tooling setups. The rear rod extension can carry a sensor flag, a mechanical stop, or a secondary tool, while the PT1/2 ports and adjustable air cushion at each end let you dial in smooth deceleration for both advancing and retracting movements.
Airtac SCD Standard Cylinder SCD100X75 Technical Specifications
| Model | Airtac SCD Standard Cylinder SCD100X75 |
|---|---|
| Series | SCD double-rod tie-rod cylinder |
| Bore size | Ø100 mm |
| Rod diameter | Ø25 mm (both ends) |
| Stroke | 75 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 SCD100X75
| SCD | Double-rod tie-rod cylinder series (rod out both ends). |
|---|---|
| 100 | Bore size in mm. |
| ×75 | 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 SCD100X75 Is Used
Two-Sided Transfer Shuttles
The equal push/pull force moves a shuttle table or transfer bar in both directions with identical acceleration, preventing the lopsided motion a single-rod cylinder would create.
Dual-End Tooling Stations
Mount a pressing tool on the front rod and a stripper plate or limit-stop on the rear rod. Both ends move together, simplifying the mechanical design of a two-operation work cell.
Non-Rotating Pushers
The twin-rod support inherently resists rotation better than a single rod, helping keep a wide pusher plate aligned without adding an external guide for short-stroke, low-side-load applications.
Is the Airtac SCD Standard Cylinder SCD100X75 the Right Cylinder?
Choose the SCD100 when your application needs roughly 3700 N of balanced force at standard plant air pressure. If you can accept a lower force, the SCD80 delivers 2268 N at 0.5 MPa and is lighter; if you need more, step up to the SCD125 at 5734 N. Remember that a double-rod cylinder is a poor choice if you only need force from one side—a single-rod SC100 gives you a higher push force because the full bore area is available on the extend stroke.
For a drop-in replacement, match the 100 mm bore, 75 mm stroke, PT port thread, basic mounting, and the absence of a magnet. This model can be ordered with a built-in magnet (SCD100X75-S) for barrel-mounted sensors, or with a centre trunnion (SCD100X75TC) if the cylinder needs to pivot.
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 SCD100X75 FAQ
Push and pull force are identical because the rod extends through both ends. At 0.5 MPa you get 3681 N, at 0.7 MPa it is 5153 N, and at the maximum operating pressure of 0.9 MPa the force reaches 6626 N in both directions.
Pick the SCD100 when you need perfectly symmetrical force and speed for both extend and retract, or when you need a rear rod end to mount sensors, stops, or secondary tooling. If you only need high force in one direction and want a smaller footprint, the single-rod SC100 is the better choice because its push stroke uses the full bore area for greater thrust.
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