Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X50X100S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X50X100S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 50mm and 100mm give 4 controllable stop positions across a 150mm total travel, with a Ø40mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ40 mm
- Stroke 150 mm
- Stroke 2100 mm
- Total travel150 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X50X100S
The SCT40X50X100S is a tandem multi-position cylinder that provides four discrete rod stops: 0 mm, 50 mm, 100 mm, and the full 150 mm extension. By pressurising either or both of its two piston sections, you can reliably index between these fixed positions in automated sequences. The built-in magnet allows direct mounting of CMSG/DMSG/EMSG sensors for end-of-stroke or mid-position confirmation.
Each actuated section delivers 628 N of push force at 0.5 MPa, rising to 1130 N at the maximum operating pressure of 0.9 MPa. The 40 mm bore cylinder uses a 16 mm diameter rod and PT1/4 ports, with a 21 mm adjustable air cushion at each end for smooth deceleration. Its body length A(SCT) is 235 mm, making it a compact solution for multi-stop tasks.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X50X100S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X50X100S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke 1 / Stroke 2 | 50 / 100 mm |
| Total travel | 150 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) | 50 mm |
| P2 (section 2) | 100 mm |
| P3 (both extended) | 150 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 SCT40X50X100S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 40 | Bore size in mm (SCT range 32–100). |
| ×50 | Stroke 1 (section 1) in mm. |
| ×100 | 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 SCT40X50X100S Is Used
Two-Depth Pressing
Use the 50 mm stroke for a partial pre-press and the combined 150 mm stroke for a full-depth forming operation, all with a single compact actuator.
3-Way Diverter Gate
The 0 mm, 50 mm, and 150 mm positions can direct product flow to three different chutes, with the 100 mm position available for a fourth lane or a cleaning station.
Multi-Stop Part Feeding
Advance parts to a 50 mm staging point, a 100 mm inspection window, and a final 150 mm pick location in a sequenced feeding system.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X50X100S the Right Cylinder?
Choose this 4-position SCT when a process requires two distinct intermediate stops without the complexity of two separate cylinders and external hard stops. The 50 mm and 100 mm stroke sections create a non-symmetrical position set ideal for applications like two-depth pressing or a diverter gate with unequal travel. If higher force is needed, step up to the 50 mm bore SCT50 series, which provides 982 N of push per section at 0.5 MPa. For a lighter load, the 32 mm bore offers 402 N.
This model is a direct replacement for another AirTAC SCT40X50X100S with the same PT ports, basic mounting, and integrated magnet. Ensure the replacement matches both the 50 mm and 100 mm section strokes exactly, as the position set is fixed by these two values.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 50 + 100 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 SCT40X50X100S FAQ
This 4-position cylinder provides stops at 0 mm (fully retracted), 50 mm, 100 mm, and 150 mm (fully extended). The positions are achieved by pressurising the first section alone (50 mm), the second section alone (100 mm), or both sections together (150 mm).
Yes, in applications where you need three or four fixed, repeatable positions along a single axis. The SCT40X50X100S consolidates two strokes into one tie-rod body, simplifying mounting, reducing air plumbing, and ensuring the relative positions between stops are mechanically fixed, unlike two separate cylinders which can drift out of sequence.
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