Airtac SCD Standard Cylinder SCD200X900S
The AirTAC Airtac SCD Standard Cylinder SCD200X900S 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 SCD200X900S
The SCD200X900S is a large-bore double-rod pneumatic cylinder delivering identical force in both directions—15080 N at 0.5 MPa and up to 27143 N at 0.9 MPa. Both ends of the cylinder feature a 40 mm diameter rod, so the effective piston area is the same on the push and pull strokes, making this actuator ideal for heavy-duty applications that demand balanced thrust and speed symmetry.
With a 900 mm stroke and a body length A(SCD) of 362 mm, this cylinder suits long-transfer tooling or two-sided pressing operations. The built-in magnet (suffix -S) allows CMSG, DMSG, or EMSG sensors to be clamped directly onto the tie-rod barrel for non-contact end-of-stroke detection. The adjustable air cushion (29 mm) decelerates the piston smoothly at both ends, protecting the end caps during high-energy stops.
Airtac SCD Standard Cylinder SCD200X900S Technical Specifications
| Model | Airtac SCD Standard Cylinder SCD200X900S |
|---|---|
| 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 SCD200X900S
| 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 SCD200X900S Is Used
Two-Sided Transfer Shuttles
The through-rod design lets you attach a carriage to both ends, moving pallets or heavy fixtures back and forth with perfectly balanced 15080 N force in each direction.
Dual-Station Pressing
Operate pressing tools on both sides of the machine simultaneously. The equal force output ensures consistent results whether the rod is extending or retracting.
Rear-Mounted Stroke Sensing
The built-in magnet works with CMSG/DMSG sensors on either end. Use the rear rod extension to carry a sensor flag or cam for redundant position verification on long 900 mm travels.
Is the Airtac SCD Standard Cylinder SCD200X900S the Right Cylinder?
This 200 mm bore model provides 15080 N at 0.5 MPa. If your application needs less force, the SCD160 delivers 9425 N at the same pressure with a 40 mm rod. For higher thrust, the SCD250 steps up to 23562 N. Because the rod extends from both ends, the SCD is the right choice when you need to mount tooling or a stopper on the rear rod, or when you require equal push-pull force. If you only need force from one end, a single-rod SC cylinder is a simpler, lower-cost alternative.
At a 900 mm stroke, the unsupported rod length on each side demands attention. Long strokes with heavy end-of-rod loads can introduce bending moments. For this model, consider an external guide rail or switch to a guided cylinder if side loads are present. For direct replacement, match the 200 mm bore, 900 mm stroke, PT port thread, basic mounting, and the -S magnet option.
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 SCD200X900S FAQ
Because the rod passes through both ends, the push and pull forces are identical. At 0.5 MPa it produces 15080 N, at 0.7 MPa it is 21111 N, and at the maximum operating pressure of 0.9 MPa it reaches 27143 N.
Choose the SCD when you need equal force and speed in both directions, or when you need a rear rod extension to mount tooling, a mechanical stop, or a sensor target. The through-rod also provides better guidance and inherent anti-rotation compared to a single-rod cylinder of the same bore.
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