Airtac SCD Standard Cylinder SCD80X180S
The AirTAC Airtac SCD Standard Cylinder SCD80X180S 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, 180mm stroke, PT3/8 ports and adjustable end cushioning.
- BoreØ80 mm
- Rod (both ends)Ø25 mm
- Stroke180 mm
- Port sizePT3/8
- Rod configDouble rod (through)
- CushionAdjustable, 28 mm
About the Airtac SCD Standard Cylinder SCD80X180S
The SCD80X180S is a double-acting, double-rod pneumatic cylinder delivering identical thrust in both directions—2268 N at 0.5 MPa—because the 25 mm rod passes through both end caps. At the full 0.9 MPa operating pressure, it outputs 4082 N, making it a balanced actuator for fixtures that need a rear rod extension for tooling or stroke confirmation.
This 80 mm bore model uses a PT3/8 port, has an adjustable air cushion length of 28 mm, and a body length A(SCD) of 257 mm. The built-in magnet (denoted by the -S suffix) allows CMSG, DMSG, or EMSG sensors to clamp directly onto the tie-rod barrel for non-contact position sensing, eliminating the need for external flag brackets.
Airtac SCD Standard Cylinder SCD80X180S Technical Specifications
| Model | Airtac SCD Standard Cylinder SCD80X180S |
|---|---|
| Series | SCD double-rod tie-rod cylinder |
| Bore size | Ø80 mm |
| Rod diameter | Ø25 mm (both ends) |
| Stroke | 180 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 SCD80X180S
| SCD | Double-rod tie-rod cylinder series (rod out both ends). |
|---|---|
| 80 | Bore size in mm. |
| ×180 | 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 SCD80X180S Is Used
Two-Sided Transfer Shuttles
The through-rod design provides equal push and pull force of 2268 N at 0.5 MPa, making it ideal for shuttle tables where a workpiece is moved between two stations with identical speed and thrust in each direction.
Rear-Mounted Stroke Sensing
With the -S magnet option, a CMSG or DMSG sensor on the rear rod band provides piston position feedback without adding hardware to the front tooling area, keeping the working zone clear for end-of-arm tooling.
Non-Rotating Alignment Pushers
The dual-rod support improves resistance to rotation compared to a single-rod cylinder, useful for pressing bearings or aligning parts where a twisting tool plate would cause misalignment.
Is the Airtac SCD Standard Cylinder SCD80X180S the Right Cylinder?
Choose this 80 mm bore when the 63 mm bore's 1402 N at 0.5 MPa is too light for your dual-sided tooling, but you do not yet need the 100 mm bore's 3681 N. If your application only requires a force output from one end, the single-rod SC series reduces the rear overhang and simplifies mounting. For strokes over 300 mm, evaluate the unsupported rod column; an external guide rail or a guided cylinder is recommended to manage side loads and prevent rod buckling.
This SCD80X180S is a direct replacement for an existing AirTAC SCD double-rod cylinder matching bore 80, stroke 180, PT thread, basic mount, and the -S magnet option. Verify that your port thread (PT vs. G) and seal material match your current setup before ordering.
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 SCD80X180S FAQ
Because it is a double-rod cylinder, the push and pull forces are equal. At 0.5 MPa it outputs 2268 N, at 0.7 MPa it is 3175 N, and at the maximum operating pressure of 0.9 MPa it reaches 4082 N. The theoretical force at 1.0 MPa is 463 kgf.
Choose the SCD when you need a rear rod extension to mount a sensor flag, a mechanical stop, or secondary tooling, or when you require perfectly symmetrical force and speed in both directions. The through-rod also provides better guidance than a single-rod cylinder, though it is not a replacement for a fully guided actuator under heavy side loads.
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