Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X45X15S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X45X15S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 45mm and 15mm give 4 controllable stop positions across a 60mm total travel, with a Ø40mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ40 mm
- Stroke 145 mm
- Stroke 215 mm
- Total travel60 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X45X15S
The SCT40X45X15S is a double-acting multi-position tandem cylinder that provides four distinct rod positions: 0 mm (fully retracted), 45 mm, 15 mm, and 60 mm (total travel). Each piston section delivers a push force of 628 N at 0.5 MPa, rising to 1130 N at 0.9 MPa, driven by a 16 mm diameter rod. The built-in magnet allows direct mounting of CMSG, DMSG, or EMSG sensors for reliable end-of-stroke or mid-position detection.
Designed with a 21 mm adjustable air cushion and PT1/4 ports, this cylinder handles a speed range of 30-800 mm/s. Its tie-rod construction ensures durability in demanding pneumatic circuits. The body length A(SCT) is 235 mm, providing a compact footprint for machinery where multiple stop points are needed from a single actuator.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X45X15S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X45X15S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke 1 / Stroke 2 | 45 / 15 mm |
| Total travel | 60 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) | 45 mm |
| P2 (section 2) | 15 mm |
| P3 (both extended) | 60 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 SCT40X45X15S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 40 | Bore size in mm (SCT range 32–100). |
| ×45 | 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 SCT40X45X15S Is Used
Two-Stage Sorting Gate
Uses the 15 mm and 45 mm strokes to divert parts to two different chutes from a single conveyor line, with the 60 mm total travel providing a third bypass position.
Dual-Depth Pressing
Achieves a shallow 15 mm pre-press and a deeper 45 mm final press in sequence, controlled by pressurizing the short-stroke section first, then the long-stroke section.
Multi-Stop Feeding
Advances material in precise 15 mm increments, then a final 45 mm push to clear the work area, with sensor confirmation at each position via the built-in magnet.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X45X15S the Right Cylinder?
Select the SCT40X45X15S when your application requires two distinct extended positions plus the retracted state, eliminating the complexity of two separate cylinders and external hard stops. If higher force is needed, stepping up to the 50 mm bore SCT50 provides 982 N of push per section at 0.5 MPa. For a direct replacement, match the 40 mm bore, both strokes of 45 mm and 15 mm, PT port thread, basic mounting, and the -S magnet option. Ensure the replacement unit carries the same sensor compatibility to avoid rewiring.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 45 + 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 SCT40X45X15S FAQ
This tandem cylinder reaches four discrete positions: 0 mm (retracted), 45 mm (stroke 1 extended), 15 mm (stroke 2 extended), and 60 mm (both strokes extended). The stops are fixed by the two section strokes and are not infinitely adjustable.
The SCT integrates two piston sections on a single common rod, giving you four positions from one compact unit. This saves mounting space and simplifies plumbing versus installing two individual cylinders with external stops to achieve the same multi-stop functionality.
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