Airtac SCD Standard Cylinder SCD50X150TC
The AirTAC Airtac SCD Standard Cylinder SCD50X150TC is a genuine double-acting DOUBLE-ROD air cylinder: the Ø20mm piston rod extends from BOTH end caps, giving equal effective area — and therefore equal force — in push and pull. Ø50mm bore, 150mm stroke, PT1/4 ports and adjustable end cushioning.
- BoreØ50 mm
- Rod (both ends)Ø20 mm
- Stroke150 mm
- Port sizePT1/4
- Rod configDouble rod (through)
- CushionAdjustable, 21 mm
About the Airtac SCD Standard Cylinder SCD50X150TC
The SCD50X150TC is a double-acting, double-rod pneumatic cylinder that outputs identical force in both directions—825 N at 0.5 MPa—because the 20 mm rod passes through both end caps. This centre-trunnion (TC) mounted variant ships with the TCM1 bracket (F-SC50TC), letting the cylinder pivot freely under swinging loads, and the 150 mm stroke sits well within the 1200 mm maximum standard stroke for the 50 mm bore.
With a body length A(SCD) of 207 mm and an adjustable air cushion of 21 mm at each end, it decelerates the piston smoothly without metal-to-metal impact. The through-rod design improves bearing support and resists rotation better than a single-rod cylinder, making it a practical choice when you need to mount tooling, a stop, or a sensor flag on the rear rod extension.
Airtac SCD Standard Cylinder SCD50X150TC Technical Specifications
| Model | Airtac SCD Standard Cylinder SCD50X150TC |
|---|---|
| Series | SCD double-rod tie-rod cylinder |
| Bore size | Ø50 mm |
| Rod diameter | Ø20 mm (both ends) |
| Stroke | 150 mm |
| Rod configuration | Double rod — rod through both caps |
| Acting type | Double acting |
| Port size | PT1/4 |
| Rod thread | M16×1.5 |
| 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, 21 mm |
| Max stroke | Up to 1200 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 (Ø50mm, double rod)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 825 N | 825 N |
| 0.7 MPa | 1155 N | 1155 N |
| Max (@1.0 MPa) | 168 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 SCD50X150TC
| SCD | Double-rod tie-rod cylinder series (rod out both ends). |
|---|---|
| 50 | Bore size in mm. |
| ×150 | 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 SCD50X150TC Is Used
Two-Sided Transfer Shuttle
The equal push-pull force and rear rod extension make this cylinder ideal for shuttling a workpiece between two stations, where a stop or secondary tool can be mounted on the back end.
Pivoting Clamp or Gate Actuator
With the TC centre-trunnion mount, the SCD50X150TC can swing a clamp arm or a small gate through an arc, using the rear rod for a balance weight or position flag.
Non-Rotating Pusher
The dual-rod support provides better anti-rotation than a single-rod cylinder, helping keep a narrow pusher plate aligned without adding an external guide for light, on-axis loads.
Is the Airtac SCD Standard Cylinder SCD50X150TC the Right Cylinder?
Choose this 50 mm bore when your application needs roughly 825 N of balanced thrust per stroke at standard plant air. If the force is too low, stepping up to the SCD63 bore provides 1402 N at the same pressure; if it is higher than needed, the SCD40 bore delivers 528 N. The centre-trunnion mount is correct for pivoting loads—if your machine requires a fixed surface mount, order the LB foot-mount version instead.
For direct replacement, match the 50 mm bore, 150 mm stroke, PT port thread, TC centre-trunnion mounting, and confirm the magnet option (this model has no built-in magnet). If the load applies a significant side force or the stroke-to-rod ratio raises a bending concern, pair the cylinder with an external guide rail or switch to a dedicated guided cylinder rather than relying solely on the double-rod support.
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 SCD50X150TC FAQ
Push and pull force are equal because the rod extends through both ends. At 0.5 MPa you get 825 N, at 0.7 MPa it is 1154 N, and at the maximum operating pressure of 0.9 MPa it reaches 1484 N in both directions.
Pick the SCD when you need identical force and speed in both directions, or when you want to use the rear rod extension for mounting a sensor flag, a mechanical stop, or secondary tooling. The through-rod also improves bearing support and reduces piston rotation compared to a single-rod SC cylinder.
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