Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X175X175S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X175X175S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 175mm and 175mm give 3 controllable stop positions across a 350mm total travel, with a Ø40mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ40 mm
- Stroke 1175 mm
- Stroke 2175 mm
- Total travel350 mm
- Positions3 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X175X175S
The AirTAC SCT40X175X175S is a tandem multi-position cylinder that delivers three distinct, repeatable rod stops at 0 mm, 175 mm, and 350 mm by pressurizing its two piston sections independently or together. Each 40 mm bore section generates 628 N of push force at 0.5 MPa, providing reliable actuation for sorting and diverting tasks.
A built-in magnet allows direct mounting of CMSG/DMSG/EMSG sensors on the 16 mm diameter rod's tie-rod barrel for precise end-of-stroke or mid-position confirmation. The cylinder body has a length of 235 mm (A dimension), uses PT1/4 ports, and features an adjustable air cushion of 21 mm to decelerate the load smoothly at each stop.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X175X175S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X175X175S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke 1 / Stroke 2 | 175 / 175 mm |
| Total travel | 350 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) | 175 mm |
| P2 (both extended) | 350 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 SCT40X175X175S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 40 | Bore size in mm (SCT range 32–100). |
| ×175 | 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 SCT40X175X175S Is Used
3-Way Diverter Gates
The three fixed positions (0, 175, 350 mm) reliably route packages or parts to three separate conveyor lanes without the need for servo control.
Multi-Stop Part Feeding
Advances components in two precise increments. The 628 N push force per section easily handles medium-weight pallet or tray indexing.
Two-Depth Press Operations
Provides a retracted safe position and two distinct pressing depths, ideal for operations requiring a partial and full insertion stroke.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X175X175S the Right Cylinder?
This 3-position SCT model replaces complex setups that would otherwise require two separate cylinders and external stops, reducing plumbing and mounting hardware. The 175 mm stroke per section is well within the standard range, ensuring standard lead times. If higher force is needed, stepping up to the 50 mm bore SCT provides 982 N of push per section at the same pressure.
For replacement, match the 40 mm bore, both 175 mm section strokes, PT port thread, and the -S magnet option. The basic mounting configuration means the cylinder body is secured via the tie-rod end caps. For strokes over 300 mm total, consider external guides to protect the 16 mm rod from side loads.
Multi-position checklist
- ✓ Need 3 repeatable stops?
- ✓ Section strokes 175 + 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 SCT40X175X175S FAQ
Because both stroke sections are equal at 175 mm, this tandem cylinder provides 3 discrete rod positions: fully retracted (0 mm), mid-extension (175 mm), and full extension (350 mm).
No. Like all standard pneumatic cylinders, the SCT does not lock or hold position when air is exhausted. If a load must be held at the 175 mm mid-stop without pressure, an external rod brake or pilot-operated check valve is required.
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