The AirTAC Airtac SCD Standard Cylinder SCD200X700S 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, 700mm stroke, PT3/4 ports and adjustable end cushioning.
The SCD200X700S is a heavy-duty double-rod pneumatic cylinder, delivering an identical 15080 N of thrust in both the extend and retract strokes at 0.5 MPa. This balanced force output comes from the 40 mm diameter rod passing through both end caps, subtracting the same area from each side of the piston. It's a genuine AirTAC unit built for applications where you need to mount tooling or a positive stop on the rear rod, or simply require perfectly symmetrical motion.
With a 700 mm stroke, this model operates well within the 1500 mm maximum standard stroke for the 200 mm bore. The body has a retracted length (dimension A) of 362 mm, and the adjustable air cushion at each end provides a 33 mm deceleration zone to manage high-speed, high-momentum loads smoothly. The integrated magnet allows direct mounting of CMSG, DMSG, or EMSG sensors on the tie-rod barrel for reliable, non-contact position feedback.
| Model | Airtac SCD Standard Cylinder SCD200X700S |
|---|---|
| Series | SCD double-rod tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø200 mm |
| Rod diameter | Ø40 mm (both ends) |
| Stroke | 700 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.
| 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.
| SCD | Double-rod tie-rod cylinder series (rod out both ends). |
|---|---|
| 200 | Bore size in mm. |
| ×700 | 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.
Moves a shuttle table between two stations with equal force and speed in both directions, using the rear rod to mount a counterbalance or secondary tooling plate.
Pushes a large workpiece against a backstop with the front rod, while the rear rod actuates a synchronized clamp, ensuring the part is squared up under 15 kN of force.
Applies a consistent 27143 N of pressing force at 0.9 MPa from both sides of a platen, using the through-rod design for perfect mechanical synchronization.
Selecting the SCD200X700S means you need equal push and pull force for a dual-sided application. If your load requires more thrust, stepping up to the 250 mm bore SCD series provides 23562 N at the same 0.5 MPa pressure. For applications that only need force in one direction, a single-rod SC cylinder would be a more economical choice, as it delivers a higher push force on the full-bore side. This double-rod model is not a guided cylinder; for the 700 mm stroke, ensure any side load is managed with an external guide rail to prevent rod bending and premature bearing wear. As a direct replacement, match the 200 mm bore, 700 mm stroke, PT port thread, and the -S magnet option.
Double-rod checklist
The force is identical in both directions because the piston rod goes through both ends. At 0.5 MPa, it produces 15080 N of force. At the maximum operating pressure of 0.9 MPa, the output is 27143 N.
Choose the SCD when you need to mount a tool, sensor flag, or mechanical stop on the back of the cylinder, or if your process demands perfectly equal speed and force for both the extend and retract strokes. A single-rod SC is better if you only need high force in one direction.
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