Airtac SCD Standard Cylinder SCD125X1000
The AirTAC Airtac SCD Standard Cylinder SCD125X1000 is a genuine double-acting DOUBLE-ROD air cylinder: the Ø32mm piston rod extends from BOTH end caps, giving equal effective area — and therefore equal force — in push and pull. Ø125mm bore, 1000mm stroke, PT1/2 ports and adjustable end cushioning.
- BoreØ125 mm
- Rod (both ends)Ø32 mm
- Stroke1000 mm
- Port sizePT1/2
- Rod configDouble rod (through)
- CushionAdjustable, 28 mm
About the Airtac SCD Standard Cylinder SCD125X1000
The SCD125X1000 is a large-bore double-acting pneumatic cylinder with a 32 mm rod extending from both ends, giving it identical push and pull force in both directions. At 0.5 MPa it outputs 5734 N each way, rising to 10321 N at the maximum operating pressure of 0.9 MPa, making it a powerful choice for heavy, symmetrical linear tasks.
With a 1000 mm stroke and a body length of 291 mm, this cylinder provides substantial reach while the through-rod design improves bearing support and resists rotation better than a single-rod type. It belongs to the ISO 6430 class, uses PT1/2 ports, and features an adjustable air cushion (28 mm) at each end to decelerate large inertial loads smoothly.
Airtac SCD Standard Cylinder SCD125X1000 Technical Specifications
| Model | Airtac SCD Standard Cylinder SCD125X1000 |
|---|---|
| Series | SCD double-rod tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Rod diameter | Ø32 mm (both ends) |
| Stroke | 1000 mm |
| Rod configuration | Double rod — rod through both caps |
| Acting type | Double acting |
| Port size | PT1/2 |
| Rod thread | M27×2 |
| 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 – 500 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 (Ø125mm, double rod)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 5734 N | 5734 N |
| 0.7 MPa | 8027 N | 8027 N |
| Max (@1.0 MPa) | 1169 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 SCD125X1000
| SCD | Double-rod tie-rod cylinder series (rod out both ends). |
|---|---|
| 125 | Bore size in mm. |
| ×1000 | 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 SCD125X1000 Is Used
Two-Sided Transfer Shuttles
The rod extending from both ends allows tooling to be mounted on each side, enabling a single cylinder to shuttle parts between two parallel conveyor lines with perfectly synchronized motion.
Heavy-Duty Non-Rotating Pushers
With its dual-rod support and 5734 N of force, this cylinder is ideal for pushing heavy pallets or engine blocks on an assembly line where rod rotation must be mechanically prevented without external guides.
Symmetrical Clamping & Forming
The equal push-pull force ensures a symmetrical clamping action. Use the rear rod to drive a secondary linkage or a sensor flag, confirming clamp position in large forming presses or welding fixtures.
Is the Airtac SCD Standard Cylinder SCD125X1000 the Right Cylinder?
When the 125 mm bore's 5734 N at 0.5 MPa is more force than your application needs, stepping down to the SCD100 bore reduces the force to 3681 N at the same pressure. If you require even higher force, the SCD160 provides 9425 N. For this 1000 mm stroke, be mindful of the long, unsupported 32 mm rod; under significant side loads or at full extension, the rod can deflect. In such cases, consider an external linear guide or a dedicated guided cylinder instead of relying solely on the double-rod's inherent support. A drop-in replacement must match the 125 mm bore, 1000 mm stroke, PT1/2 ports, basic mounting, and the SCD double-rod configuration.
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 SCD125X1000 FAQ
Because it is a double-rod cylinder, the push and pull forces are identical. The force is 5734 N at 0.5 MPa, 8028 N at 0.7 MPa, and 10321 N at the maximum operating pressure of 0.9 MPa. The theoretical force at 1.0 MPa is 1169 kgf.
You would choose the SCD125X1000 when you need identical force and speed in both directions, or when you require a rear rod extension to mount tooling, a cam, or a position sensor. The through-rod also provides better guidance and inherent anti-rotation compared to a single-rod cylinder, which is critical for long-stroke applications like this 1000 mm model.
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