Airtac SCD Standard Cylinder SCD200X900
The AirTAC Airtac SCD Standard Cylinder SCD200X900 is a genuine double-acting DOUBLE-ROD air cylinder: the Ø40mm piston rod extends from BOTH end caps, giving equal effective area — and therefore equal force — in push and pull. Ø200mm bore, 900mm stroke, PT3/4 ports and adjustable end cushioning.
- BoreØ200 mm
- Rod (both ends)Ø40 mm
- Stroke900 mm
- Port sizePT3/4
- Rod configDouble rod (through)
- CushionAdjustable, 33 mm
About the Airtac SCD Standard Cylinder SCD200X900
The SCD200X900 is a heavy-duty double-rod pneumatic cylinder engineered for applications demanding identical thrust in both directions. With a 200 mm bore and a substantial 40 mm through-rod, it provides a balanced 15080 N of force for push and pull strokes at 0.5 MPa, rising to 27143 N at the maximum operating pressure of 0.9 MPa. The 900 mm stroke is well within the 1500 mm maximum standard stroke for this bore, making it a readily available configuration for long-travel, high-force linear tasks.
Because the piston rod extends from both end caps, this cylinder offers superior resistance to rod bending and eliminates the force differential found in single-rod designs. The adjustable air cushion at each end, with a 33 mm cushion length, decelerates the massive piston smoothly, protecting the end caps during high-cycle operation. The PT3/4 port and M36x2 rod thread are sized for high flow and robust tooling attachment, while the tie-rod construction ensures serviceability in demanding industrial environments.
Airtac SCD Standard Cylinder SCD200X900 Technical Specifications
| Model | Airtac SCD Standard Cylinder SCD200X900 |
|---|---|
| Series | SCD double-rod tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø200 mm |
| Rod diameter | Ø40 mm (both ends) |
| Stroke | 900 mm |
| Rod configuration | Double rod — rod through both caps |
| Acting type | Double acting |
| Port size | PT3/4 |
| Rod thread | M36×2 |
| 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, 33 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 (Ø200mm, double rod)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 15080 N | 15080 N |
| 0.7 MPa | 21111 N | 21111 N |
| Max (@1.0 MPa) | 3075 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 SCD200X900
| SCD | Double-rod tie-rod cylinder series (rod out both ends). |
|---|---|
| 200 | Bore size in mm. |
| ×900 | 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 SCD200X900 Is Used
Heavy-Duty Shuttle Tables
The equal 15080 N force in both directions makes this cylinder ideal for shifting heavy steel components or pallets between two stations on a transfer line, ensuring consistent cycle times regardless of travel direction.
Two-Sided Pressing & Clamping
Use the front rod for pressing a bushing while the rear rod actuates a synchronized ejector mechanism. The identical force output guarantees both operations occur with the same 27 kN power at 0.9 MPa.
Symmetric Tensioning Devices
The through-rod design is perfect for applying balanced tension to cables or belts. Mount a load cell on the rear rod to get a direct, accurate force reading that perfectly mirrors the working end's output.
Is the Airtac SCD Standard Cylinder SCD200X900 the Right Cylinder?
Select the SCD200X900 when your mechanism requires a symmetric, high-force linear output over a long stroke, such as operating a two-sided clamping fixture or a heavy shuttle table. If 15080 N at 0.5 MPa exceeds your requirement, consider stepping down to the SCD160 series, which provides 9425 N of force from a more compact 160 mm bore. For applications needing only a single working end, a single-rod SC200 cylinder would be a simpler and more cost-effective choice, as it does not have the second protruding rod.
For a long 900 mm stroke, carefully assess the potential for rod deflection under side loads. While the double-rod design provides better guidance than a single rod, it is not a guided cylinder. If the load is not perfectly axial, integrate an external guide rail or switch to a guided cylinder to prevent premature bearing wear and seal failure. As a direct replacement, this unit matches any AirTAC SCD200X900 with PT ports, basic mounting, and no magnet; ensure the replacement matches these exact specifications.
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 SCD200X900 FAQ
Yes. Unlike a single-rod cylinder, the SCD200X900 has a 40 mm rod extending from both ends. This means the piston's effective area is identical on both sides, producing exactly 15080 N of force in push and pull at 0.5 MPa, and 27143 N at 0.9 MPa.
Choose the SCD200X900 when you need to mount tooling, sensors, or a mechanical stop on the rear rod, or when your application demands perfectly equal speed and force in both directions. The dual-rod support also provides better resistance to side-loading than a single-rod SC cylinder, though it is not a substitute for a fully guided unit under high lateral loads.
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