The AirTAC Airtac SCD Standard Cylinder SCD160X700S 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. Ø160mm bore, 700mm stroke, PT3/4 ports and adjustable end cushioning.
The SCD160X700S is a large-bore double-rod pneumatic cylinder that outputs an identical 9425 N of thrust in both extend and retract directions at 0.5 MPa, thanks to its through-rod design. With a 40 mm diameter rod protruding from both end caps, it provides a robust platform for mounting tooling, stripper plates, or external stroke-sensing flags on the rear side without any force asymmetry.
This model includes a factory-installed magnet (-S suffix), allowing CMSG, DMSG, or EMSG reed and solid-state sensors to be clamped directly onto the tie-rod barrel for non-contact position feedback. The 700 mm stroke is well within the 1500 mm maximum for the 160 bore, and the adjustable air cushion (29 mm length) at each end decelerates the high-inertia piston assembly smoothly, protecting the end caps during high-cycle operation.
| Model | Airtac SCD Standard Cylinder SCD160X700S |
|---|---|
| Series | SCD double-rod tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø160 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, 29 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 | 9425 N | 9425 N |
| 0.7 MPa | 13195 N | 13195 N |
| Max (@1.0 MPa) | 1922 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). |
|---|---|
| 160 | 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.
The rear rod can mirror the front tooling, enabling a single SCD160X700S to push or pull a pallet from either side of a conveyor junction with perfectly balanced 9425 N force.
Ideal for clamping or pressing operations where the work must be engaged with the same force from both directions, such as a two-stage forming die that requires a 9425 N stripping action on the return stroke.
The built-in magnet allows CMSG/DMSG sensors to be mounted on the rear barrel section, using the rear rod extension as a clean, accessible location for a sensor flag to confirm full retraction in tight spaces.
Choose the SCD160 when your application needs roughly 9425 N of force in both directions at standard plant pressure. If you can accept a lower force, the SCD125 bore generates 5734 N at 0.5 MPa and may reduce your air consumption and physical footprint. For tasks that only require a push force and a simple return, a single-rod SC160 cylinder would be a more economical choice, as it delivers a higher push force (10053 N at 0.5 MPa) on the full-bore side. For a drop-in replacement, match the 160 mm bore, 700 mm stroke, PT port thread, and the -S magnet option; the SCD mounting pattern accepts basic, FA, LB, and TC accessories. At this 700 mm stroke length, ensure the dual-rod assembly is not subjected to significant side loads, as the long unsupported rods can deflect—use an external linear guide or switch to a guided cylinder if radial forces are present.
Double-rod checklist
The push and pull forces are identical because the piston rod extends through both ends of the cylinder. At 0.5 MPa the force is 9425 N, at 0.7 MPa it is 13194 N, and at the maximum operating pressure of 0.9 MPa it reaches 16964 N. The theoretical force at 1.0 MPa is 1922 kgf.
You would choose the SCD160 when you need a perfectly balanced force and speed in both directions, or when you require a rear rod extension to mount a second tool, a mechanical stop, or a sensor target. A single-rod SC160 has unequal push/pull forces and no rear rod access, making it unsuitable for applications that demand symmetric motion or dual-end work.
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