Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X15X175S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X15X175S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 15mm and 175mm give 4 controllable stop positions across a 190mm total travel, with a Ø40mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ40 mm
- Stroke 115 mm
- Stroke 2175 mm
- Total travel190 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X15X175S
The SCT40X15X175S is a tandem multi-position cylinder that delivers four fixed rod positions from two independent piston sections: 0 mm (fully retracted), 15 mm, 175 mm, and the combined total travel of 190 mm. Each 40 mm bore section generates a push force of 628 N at 0.5 MPa, making it suitable for light sorting or diverting tasks where a short initial step and a longer secondary stroke are required.
A built-in magnet band on the piston allows direct mounting of CMSG, DMSG, or EMSG sensors on the tie-rod barrel for non-contact position feedback. The cylinder features a 16 mm diameter rod, M12x1.25 rod thread, and PT1/4 ports. Its adjustable air cushion, with a 21 mm cushion length, decelerates the piston smoothly at both ends of the 190 mm total travel.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X15X175S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X15X175S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke 1 / Stroke 2 | 15 / 175 mm |
| Total travel | 190 mm |
| Stop positions | 4 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 (4)
| Position | Rod extension |
|---|---|
| P0 (retracted) | 0 mm |
| P1 (section 1) | 15 mm |
| P2 (section 2) | 175 mm |
| P3 (both extended) | 190 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 SCT40X15X175S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 40 | Bore size in mm (SCT range 32–100). |
| ×15 | Stroke 1 (section 1) in mm. |
| ×175 | 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 SCT40X15X175S Is Used
Two-Stage Part Diverting
Uses the 15 mm stroke to clear a gate edge and the 175 mm stroke to push the part onto a separate conveyor lane, providing a compact, all-pneumatic sorting solution.
Sequential Clamping
Applies a light 15 mm touch to position a workpiece before the full 175 mm stroke engages a higher-force clamp, preventing damage to delicate components.
Dual-Depth Stop Gate
Acts as a two-depth gate, stopping pallets at a 15 mm inspection position or a 175 mm bypass position on a gravity conveyor, controlled by two solenoid valves.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X15X175S the Right Cylinder?
This 4-position model is ideal when a process needs a short, precise indexing move followed by a full transfer stroke, replacing two separate cylinders and their mounting hardware. If the 628 N push force per section is insufficient, stepping up to the 50 mm bore SCT50 series provides 982 N of push force at the same 0.5 MPa pressure. For replacement, match the 40 mm bore, both the 15 mm and 175 mm strokes, the PT port thread, and the integrated magnet (-S suffix). With a combined stroke of 190 mm, the rod is well-supported, but for applications with significant transverse loads at full extension, an external guide rail is recommended.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 15 + 175 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 SCT40X15X175S FAQ
This tandem cylinder provides four discrete rod positions: 0 mm (fully retracted), 15 mm (first section extended), 175 mm (second section extended), and 190 mm (both sections extended). The positions are achieved by pressurizing the cylinder's two sections independently or together.
Yes, it can replace a setup with two SC40 cylinders of 15 mm and 175 mm strokes, provided they were mounted in series. The SCT40X15X175S offers the same per-section force (628 N push at 0.5 MPa) in a single, pre-aligned body. Ensure the replacement matches the PT ports and the -S magnet option if sensors are used.
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