Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X15X15S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X15X15S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 15mm and 15mm give 3 controllable stop positions across a 30mm total travel, with a Ø40mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ40 mm
- Stroke 115 mm
- Stroke 215 mm
- Total travel30 mm
- Positions3 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X15X15S
The SCT40X15X15S is a tandem multi-position cylinder that provides three distinct, repeatable rod positions: fully retracted (0 mm), the first stroke extended (15 mm), and both strokes extended for a total travel of 30 mm. Each 40 mm bore piston section delivers a push force of 628 N at 0.5 MPa, making it a compact solution for short-throw, multi-stop tasks.
This model includes a built-in magnet (-S suffix), allowing direct mounting of CMSG, DMSG, or EMSG sensors on the tie-rod barrel for non-contact position feedback. The 16 mm diameter rod and PT1/4 ports keep the unit rigid and easy to plumb, while the 21 mm adjustable air cushion at each end section decelerates the load smoothly.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X15X15S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X15X15S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke 1 / Stroke 2 | 15 / 15 mm |
| Total travel | 30 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) | 15 mm |
| P2 (both extended) | 30 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 SCT40X15X15S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 40 | Bore size in mm (SCT range 32–100). |
| ×15 | Stroke 1 (section 1) in mm. |
| ×15 | 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 SCT40X15X15S Is Used
Two-Position Part Diverting
Directs small components to two separate lanes by stopping the rod at 15 mm for lane one and 30 mm for lane two, using sensor feedback from the integrated magnet.
Staged Ejector Mechanism
Performs a two-depth push sequence, first ejecting a part to a staging area at the 15 mm stroke, then fully ejecting it at the 30 mm total stroke.
Short-Stroke Clamping with Verification
Applies an initial low-clearance clamp at 15 mm, then a final full-pressure clamp at 30 mm, with magnetic sensors confirming each discrete position.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X15X15S the Right Cylinder?
Select the SCT when a single actuator must stop at two fixed extension points without the complexity of two separate cylinders and external hard stops. For this 40 mm bore, the per-section push force is 628 N at 0.5 MPa; if your load requires more thrust, stepping up to the 50 mm bore provides 982 N per section. A direct replacement must match the 40 mm bore, both 15 mm strokes, the built-in magnet, and the PT port thread.
Multi-position checklist
- ✓ Need 3 repeatable stops?
- ✓ Section strokes 15 + 15 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 SCT40X15X15S FAQ
It provides 3 distinct mechanical stops: 0 mm (fully retracted), 15 mm (first section extended), and 30 mm (both sections extended, which is the total travel).
While external stops can work, the SCT integrates two pistons on one rod for true, repeatable intermediate positioning without additional hardware. A drop-in replacement must be an AirTAC SCT with a 40 mm bore, 15 mm strokes for both sections, a built-in magnet (-S), and PT ports.
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Standard models usually ship in 3-4 days.
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