Airtac SCD Standard Cylinder SCD32X85S
The AirTAC Airtac SCD Standard Cylinder SCD32X85S is a genuine double-acting DOUBLE-ROD air cylinder: the Ø12mm piston rod extends from BOTH end caps, giving equal effective area — and therefore equal force — in push and pull. Ø32mm bore, 85mm stroke, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Rod (both ends)Ø12 mm
- Stroke85 mm
- Port sizePT1/8
- Rod configDouble rod (through)
- CushionAdjustable, 21 mm
About the Airtac SCD Standard Cylinder SCD32X85S
The SCD32X85S delivers a balanced 345 N of thrust in both directions at 0.5 MPa, thanks to its through-rod design where the 12 mm rod occupies both piston sides equally. This 32 mm bore double-rod cylinder is built for compact, two-sided tasks where space is tight but equal force and speed are non-negotiable.
At 0.9 MPa the output climbs to 621 N, and the 21 mm adjustable air cushion at each end helps manage end-of-stroke energy. The built-in magnet (denoted by the -S suffix) allows CMSG, DMSG, or EMSG sensors to be clamped directly onto the tie-rod barrel for reliable, non-contact position sensing from either end of the 85 mm stroke.
Airtac SCD Standard Cylinder SCD32X85S Technical Specifications
| Model | Airtac SCD Standard Cylinder SCD32X85S |
|---|---|
| Series | SCD double-rod tie-rod cylinder |
| Bore size | Ø32 mm |
| Rod diameter | Ø12 mm (both ends) |
| Stroke | 85 mm |
| Rod configuration | Double rod — rod through both caps |
| Acting type | Double acting |
| Port size | PT1/8 |
| Rod thread | M10×1.25 |
| 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 – 800 mm/s |
| Cushion | Adjustable, 21 mm |
| Max stroke | Up to 1000 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 (Ø32mm, double rod)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 346 N | 346 N |
| 0.7 MPa | 484 N | 484 N |
| Max (@1.0 MPa) | 70 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 SCD32X85S
| SCD | Double-rod tie-rod cylinder series (rod out both ends). |
|---|---|
| 32 | Bore size in mm. |
| ×85 | 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 SCD32X85S Is Used
Two-Sided Transfer
The 12 mm rod extending from both ends can push a part into a fixture from one side while the rear rod actuates a secondary mechanism, perfectly synchronizing two motions from a single cylinder.
End-of-Stroke Sensing
With the built-in magnet, a DMSG sensor on the barrel provides precise piston position feedback for both the advance and retract strokes, critical for sequencing in automated assembly cells.
Anti-Rotation Guide
The dual-rod support offers better resistance to rod rotation than a single-rod cylinder, making it suitable for light-duty pressing or guiding where a keyed rod is not required.
Is the Airtac SCD Standard Cylinder SCD32X85S the Right Cylinder?
Choose this 32 mm bore when you need a compact double-rod actuator with equal push/pull force. If you require more thrust, stepping up to the SCD40 bore provides 528 N at 0.5 MPa. For applications where only one working end is needed, the single-rod SC32 series is a simpler and more cost-effective alternative.
This SCD32X85S is a direct replacement for any AirTAC SCD32X85-S cylinder with PT ports and basic mounting. To ensure full compatibility, match the bore (32 mm), stroke (85 mm), port thread (PT), mounting style (basic), and the presence of the magnet (-S).
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 SCD32X85S FAQ
The push and pull forces are identical because the piston rod passes through both ends. At 0.5 MPa, the force is 345 N; at 0.7 MPa, it is 483 N; and at the maximum operating pressure of 0.9 MPa, it reaches 621 N.
Choose the SCD when you need equal force and speed in both directions, or when you need to mount tooling, a stopper, or a sensor flag on the rear rod. The through-rod also provides better guidance and anti-rotation characteristics than a standard single-rod cylinder.
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