Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X230X230S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X230X230S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 230mm and 230mm give 3 controllable stop positions across a 460mm total travel, with a Ø40mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ40 mm
- Stroke 1230 mm
- Stroke 2230 mm
- Total travel460 mm
- Positions3 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X230X230S
The SCT40X230X230S is a double-acting multi-position cylinder that provides three fixed rod positions: fully retracted (0 mm), an intermediate stop at 230 mm, and full extension at 460 mm. By pressurising the two piston sections independently or together, you get repeatable, discrete stopping points without complex servo controls. Each section generates approximately 628 N of push force at 0.5 MPa, rising to 1130 N at the maximum operating pressure of 0.9 MPa.
This genuine AirTAC tandem unit includes a built-in magnet, allowing direct mounting of CMSG, DMSG, or EMSG sensors on the tie-rod barrel for non-contact position feedback. The 16 mm diameter piston rod and PT1/4 ports keep the design compact, while the 21 mm adjustable air cushion at each end decelerates the load smoothly. The body length A(SCT) is 235 mm.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X230X230S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X230X230S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke 1 / Stroke 2 | 230 / 230 mm |
| Total travel | 460 mm |
| Stop positions | 3 positions |
| Acting type | Double acting (tandem, multi-position) |
| Port size | PT1/4 |
| Rod thread | M12×1.25 |
| 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 / section | Up to 500 mm standard |
Specifications follow the official AirTAC SCT (multi-position) datasheet. SCT is available in bores 32–100; each of the two sections has a 500 mm max standard stroke (800 mm max). Confirm against the product label before installation. Thread options: PT (standard) / G.
Stop Positions (3)
| Position | Rod extension |
|---|---|
| P0 (retracted) | 0 mm |
| P1 (section 1) | 230 mm |
| P2 (both extended) | 460 mm |
Positions are set by pressurising section 1, section 2, or both. With equal strokes you get 3 distinct positions; with unequal strokes you get 4.
Theoretical Output Force (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
Force is per actuated piston section (single-piston, same as the SC bore): push uses the full bore area, pull subtracts the rod area. Size with a safety margin.
Model Code: Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X230X230S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 40 | Bore size in mm (SCT range 32–100). |
| ×230 | Stroke 1 (section 1) in mm. |
| ×230 | Stroke 2 (section 2) in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related types: SC (single rod), SCD (double rod), SCJ (adjustable stroke). SCT mounting: Basic, FA, FB, CA, CB, LB. Seals: TPU standard / H = Viton / N = NBR. Thread: blank = PT, G = G thread.
Where the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X230X230S Is Used
3-Position Sorting Gate
Diverts packages or parts to three separate lanes by stopping the rod at 0, 230, or 460 mm, triggered by simple pneumatic valve logic.
Two-Depth Clamping Fixture
Applies a light clamp force at the 230 mm intermediate stop for delicate parts and full clamping pressure at 460 mm for robust workpieces.
Multi-Stop Feeding Mechanism
Advances material in two precise increments of 230 mm each, ideal for step-feeding bar stock or extrusions into a stamping or cutting station.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X230X230S the Right Cylinder?
Choose the SCT40 tandem cylinder when your application requires three distinct mechanical stops without the cost or complexity of a servo axis. Compared to using two separate SC40 cylinders and external hard stops, the SCT40X230X230S simplifies plumbing, reduces mounting footprint, and guarantees the positional relationship between the two strokes. If your load demands more thrust, stepping up to the SCT50 bore provides about 982 N of push per section at 0.5 MPa. For a direct replacement, match the 40 mm bore, both 230 mm section strokes, PT port thread, and the -S magnet option. Because each section stroke exceeds 200 mm, ensure the rod is adequately guided if significant side loads are present to prevent bending.
Multi-position checklist
- ✓ Need 3 repeatable stops?
- ✓ Section strokes 230 + 230 mm suit your layout?
- ✓ Required force at your working pressure
- ✓ 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 Plumb the two sections to the correct valves for each stop.
- check Adjust end cushion screws for smooth stops.
- check Use SCT mounting accessory (FA / FB / CA / CB / LB).
- check Installation by qualified personnel per AirTAC docs.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X230X230S FAQ
This model provides three discrete rod positions: 0 mm (fully retracted), 230 mm (first section extended), and 460 mm (both sections extended). The two strokes are equal, so the middle position is exactly halfway.
Yes, the SCT tandem cylinder is designed to replace two individual cylinders where you need fixed intermediate stops. It ensures the two strokes are mechanically linked on a single rod line, reducing mounting hardware and simplifying the pneumatic circuit. For a compatible replacement, ensure the bore, both strokes, port type, and magnet option match.
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