Airtac SCD Standard Cylinder SCD80X75
The AirTAC Airtac SCD Standard Cylinder SCD80X75 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. Ø80mm bore, 75mm stroke, PT3/8 ports and adjustable end cushioning.
- BoreØ80 mm
- Rod (both ends)Ø25 mm
- Stroke75 mm
- Port sizePT3/8
- Rod configDouble rod (through)
- CushionAdjustable, 28 mm
About the Airtac SCD Standard Cylinder SCD80X75
The SCD80X75 is a double-acting pneumatic cylinder with a piston rod extending from both ends, delivering symmetrical force and speed in each direction. At 0.5 MPa, it provides a balanced 2268 N of thrust for both push and pull strokes, making it ideal for tasks where a rear rod connection is needed for tooling, stoppers, or external position sensing.
With an 80 mm bore and a 25 mm through-rod, this 75 mm stroke cylinder features a compact body length A of 257 mm and an adjustable air cushion of 28 mm at each end for smooth deceleration. The PT3/8 ports and M20x1.5 rod threads are standard, and its tie-rod construction ensures robust, serviceable operation in general industrial automation.
Airtac SCD Standard Cylinder SCD80X75 Technical Specifications
| Model | Airtac SCD Standard Cylinder SCD80X75 |
|---|---|
| Series | SCD double-rod tie-rod cylinder |
| Bore size | Ø80 mm |
| Rod diameter | Ø25 mm (both ends) |
| Stroke | 75 mm |
| Rod configuration | Double rod — rod through both caps |
| Acting type | Double acting |
| Port size | PT3/8 |
| 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, 28 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 (Ø80mm, double rod)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2268 N | 2268 N |
| 0.7 MPa | 3175 N | 3175 N |
| Max (@1.0 MPa) | 463 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 SCD80X75
| SCD | Double-rod tie-rod cylinder series (rod out both ends). |
|---|---|
| 80 | 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 SCD80X75 Is Used
Two-Sided Transfer Shuttles
The through-rod allows a workpiece to be pushed or pulled from either end of a transfer line, simplifying the mechanism for moving parts between two parallel conveyors with a single actuator.
Dual-End Tooling Actuation
Mount a primary tool on the front rod and a secondary tool, like a stripper plate or ejector pin, on the rear rod. Both are driven in perfect synchronization by the single piston for a compact, coordinated sequence.
Non-Rotating Pusher Stations
The dual-rod support provides better resistance to rotation than a single-rod cylinder, making the SCD80X75 a reliable choice for pushing components into a fixture where twist must be controlled without adding an external guide rail.
Is the Airtac SCD Standard Cylinder SCD80X75 the Right Cylinder?
This 80 mm bore model sits between the 63 mm (1402 N at 0.5 MPa) and 100 mm (3681 N at 0.5 MPa) sizes. If your application needs more force, stepping up to the SCD100 provides a significant boost, while the SCD63 offers a lighter, more compact alternative. Choose this double-rod SCD over a single-rod SC when you require a rear rod end to mount a second tool, a stroke adjustment stop, or a sensor flag, or when the inherent anti-rotation guidance of the twin rod bearings is beneficial.
For a direct replacement, match the 80 mm bore, 75 mm stroke, PT3/8 port thread, and basic mounting style. If you need position feedback, select the -S magnet option to use CMSG/DMSG sensors. For a pivoting application, the TC centre trunnion mount with a TCM1 bracket is the correct choice; this model does not accept FB flange or CA/CB clevis mounts.
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 SCD80X75 FAQ
Because it is a double-rod cylinder, the push and pull forces are identical. The effective piston area is the same on both sides. The force is 2268 N at 0.5 MPa, 3175 N at 0.7 MPa, and reaches 4082 N at the maximum operating pressure of 0.9 MPa.
Choose the SCD when you need to attach a load, bracket, or sensor to the rear of the cylinder. The through-rod provides equal force and speed in both directions, offers better guidance against side load than a single rod, and allows you to use the rear rod end for a stroke adjustment stop or external limit switch activation.
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