Airtac SCD Standard Cylinder SCD200X500S
The AirTAC Airtac SCD Standard Cylinder SCD200X500S 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, 500mm stroke, PT3/4 ports and adjustable end cushioning.
- BoreØ200 mm
- Rod (both ends)Ø40 mm
- Stroke500 mm
- Port sizePT3/4
- Rod configDouble rod (through)
- CushionAdjustable, 33 mm
About the Airtac SCD Standard Cylinder SCD200X500S
This SCD200X500S delivers identical thrust in both directions—15080 N at 0.5 MPa and up to 27143 N at the maximum 0.9 MPa operating pressure—because the 40 mm rod passes through both end caps. That symmetry eliminates force differentials, making the cylinder predictable for heavy tooling mounted on either or both rod ends.
With a 500 mm stroke, the through-rod design provides better bearing support than a single-rod cylinder of the same length, helping to resist deflection under the 3075 kgf theoretical force this bore can generate. The built-in magnet (denoted by the -S suffix) lets you clamp CMSG, DMSG, or EMSG sensors directly onto the tie-rod barrel for end-of-stroke or mid-position sensing without extra brackets.
Airtac SCD Standard Cylinder SCD200X500S Technical Specifications
| Model | Airtac SCD Standard Cylinder SCD200X500S |
|---|---|
| Series | SCD double-rod tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø200 mm |
| Rod diameter | Ø40 mm (both ends) |
| Stroke | 500 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 SCD200X500S
| SCD | Double-rod tie-rod cylinder series (rod out both ends). |
|---|---|
| 200 | Bore size in mm. |
| ×500 | 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 SCD200X500S Is Used
Two-Sided Transfer Shuttle
The rod extending from both ends lets a single SCD200X500S move a pallet or fixture between two opposing stations. Equal force in each direction ensures consistent cycle times regardless of which way the load travels.
Heavy-Duty Alignment & Clamping
Use the rear rod to drive a secondary clamp or stripper plate in sync with the main tool. The 40 mm through-rod provides the rigidity needed to keep both ends aligned under the 27143 N thrust available at 0.9 MPa.
Stroke-End Sensing on Both Sides
The built-in magnet (-S) allows CMSG or DMSG sensors to be mounted on the barrel to detect piston position. With a through-rod, you can also mount a physical flag on the rear rod for a redundant limit switch, adding safety to large-stroke transfers.
Is the Airtac SCD Standard Cylinder SCD200X500S the Right Cylinder?
Choose the SCD200 when your application needs roughly 15 kN of balanced force at standard plant air. If you can work with about 9.4 kN, stepping down to the SCD160 (9425 N at 0.5 MPa) saves space and air consumption. For a purely single-sided push task where the rear rod is unused, the single-rod SC200 is a simpler, lower-cost alternative.
At 500 mm of stroke, the unsupported rod mass becomes significant. Even with the improved guidance of a double-rod design, sustained side loads or high-speed cycling can cause rod bending. If the load is not perfectly axial, add an external linear guide or switch to a guided cylinder. For drop-in replacement, match the 200 mm bore, 500 mm stroke, PT port thread, basic mounting, and the -S magnet option to another AirTAC SCD200X500S.
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 SCD200X500S FAQ
Push and pull force are identical because the rod area is subtracted from both sides of the piston. The forces are 15080 N at 0.5 MPa, 21111 N at 0.7 MPa, and 27143 N at the maximum operating pressure of 0.9 MPa. The theoretical force at 1.0 MPa is 3075 kgf.
Pick the SCD200 when you need to mount tooling, a stopper, or a sensor flag on the rear rod, or when you require perfectly equal force and speed in both directions. The through-rod also provides better guidance than a single-rod cylinder, reducing bushing wear in long-stroke applications like this 500 mm model.
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