Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X15X50S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X15X50S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 15mm and 50mm give 4 controllable stop positions across a 65mm total travel, with a Ø40mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ40 mm
- Stroke 115 mm
- Stroke 250 mm
- Total travel65 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X15X50S
The SCT40X15X50S is a tandem multi-position cylinder that delivers four fixed rod positions—0 mm, 15 mm, 50 mm, and the combined 65 mm stroke—from a single compact assembly. Its 16 mm diameter rod and PT1/4 ports handle a per-section push force of 628 N at 0.5 MPa, rising to 1130 N at 0.9 MPa, making it suitable for light sorting or diverting tasks.
An integrated magnet (-S suffix) allows CMSG, DMSG, or EMSG sensors to clamp directly onto the tie-rod barrel for non-contact position confirmation at each stop. The body length A(SCT) is 235 mm, and the adjustable air cushion on each section decelerates the piston smoothly, protecting end caps during high-cycle operation.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X15X50S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X15X50S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke 1 / Stroke 2 | 15 / 50 mm |
| Total travel | 65 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) | 50 mm |
| P3 (both extended) | 65 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 SCT40X15X50S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 40 | Bore size in mm (SCT range 32–100). |
| ×15 | Stroke 1 (section 1) in mm. |
| ×50 | 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 SCT40X15X50S Is Used
Two-Way Part Diverting
Use the 15 mm and 65 mm positions to guide small components down different chutes on a packaging line, eliminating the need for two actuators.
Dual-Depth Pressing
Achieve a shallow 15 mm pre-press followed by a full 65 mm forming stroke in light assembly, with sensor feedback at each depth via the built-in magnet.
Multi-Stop Gate Control
Operate a material gate at partially open (15 mm), half-open (50 mm), and fully open (65 mm) positions for precise flow regulation.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X15X50S the Right Cylinder?
Choose the SCT when you need multiple fixed stop points without the complexity of two separate cylinders and external hard stops. This 40 mm bore unit suits moderate loads; if you require higher thrust, the 50 mm bore SCT50 series provides 982 N push per section at 0.5 MPa. For a direct replacement, match the 40 mm bore, both strokes (15 mm and 50 mm), PT port thread, basic mounting, and the -S magnet option.
When ordering a replacement, ensure the sensor type (reed or solid-state) is compatible with the built-in magnet. The short 15 mm first stroke is ideal for a quick initial advance, while the 50 mm second stroke completes the full 65 mm travel.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 15 + 50 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 SCT40X15X50S FAQ
It provides four discrete rod positions: fully retracted (0 mm), first section extended (15 mm), second section extended (50 mm), and both sections extended for the total travel (65 mm). The stops are fixed by the two stroke lengths.
Yes, the -S suffix indicates a built-in magnet, making it compatible with CMSG (reed), DMSG, and EMSG (solid-state) sensors that mount directly on the cylinder's tie-rods to detect each position.
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