Airtac SCD Standard Cylinder SCD80X745TC
The AirTAC Airtac SCD Standard Cylinder SCD80X745TC 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, 745mm stroke, PT3/8 ports and adjustable end cushioning.
- BoreØ80 mm
- Rod (both ends)Ø25 mm
- Stroke745 mm
- Port sizePT3/8
- Rod configDouble rod (through)
- CushionAdjustable, 28 mm
About the Airtac SCD Standard Cylinder SCD80X745TC
The SCD80X745 is a double-acting, double-rod pneumatic cylinder that delivers identical force in both directions—2268 N of push and pull at 0.5 MPa, rising to 4082 N at the maximum operating pressure of 0.9 MPa. This symmetry comes from the 25 mm diameter rod passing through both end caps, ensuring the effective piston area is balanced on each side. The 745 mm stroke sits comfortably within the 1500 mm maximum for this bore, and the body length A(SCD) is 257 mm.
A centre trunnion (TC) mount is specified, which includes the TCM1 bracket and allows the cylinder to pivot, making it ideal for applications where the load follows an arc. The adjustable air cushion at each end, with a 28 mm cushion length, decelerates the piston smoothly to manage the inertia of the through-rod assembly. This is a genuine AirTAC unit with PT3/8 ports and an M20x1.5 rod thread, built for consistent, bidirectional linear work.
Airtac SCD Standard Cylinder SCD80X745TC Technical Specifications
| Model | Airtac SCD Standard Cylinder SCD80X745TC |
|---|---|
| Series | SCD double-rod tie-rod cylinder |
| Bore size | Ø80 mm |
| Rod diameter | Ø25 mm (both ends) |
| Stroke | 745 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 SCD80X745TC
| SCD | Double-rod tie-rod cylinder series (rod out both ends). |
|---|---|
| 80 | Bore size in mm. |
| ×745 | 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 SCD80X745TC Is Used
Bidirectional Transfer Shuttles
The equal 2268 N push-pull force moves a shuttle table or carriage with identical speed and power in both directions, simplifying flow controls.
Rear-Mounted Stroke Sensing
The rear rod extension provides a perfect mounting point for a sensor flag or cam, enabling end-of-stroke detection without interfering with the main tooling on the front rod.
Symmetric Clamping & Pressing
Apply balanced clamping force from both ends of the cylinder in a fixture, or use the through-rod to link two platens for simultaneous, equal-pressure pressing.
Is the Airtac SCD Standard Cylinder SCD80X745TC the Right Cylinder?
Choose the SCD80 bore when your application requires balanced thrust in the 2268 N range at standard plant pressure. If you need more force, stepping up to the SCD100 bore provides 3681 N at the same 0.5 MPa. For a lighter, single-sided actuation task where only one rod end is needed, the single-rod SC80 series is a simpler alternative. To replace an existing unit, match the 80 mm bore, 745 mm stroke, PT3/8 port thread, centre trunnion (TC) mounting, and the optional magnet if your original had the -S suffix. At this stroke length, be mindful of the unsupported rod extending from the rear; if the rear rod carries a load or sensor flag, ensure it is guided externally to prevent bending under side forces.
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 SCD80X745TC FAQ
Because it is a double-rod cylinder, the push and pull forces are identical. At 0.5 MPa you get 2268 N, at 0.7 MPa it is 3175 N, and at the maximum operating pressure of 0.9 MPa the force reaches 4082 N in both directions.
Select the SCD when you need equal force and speed in both directions, or when you require a rear rod extension to mount tooling, a stopper, or a sensor flag. The through-rod design also provides better guidance and bearing support than a single-rod cylinder, though it is not a substitute for an externally guided unit under heavy side loads.
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