Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X60X400
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X60X400 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 60mm and 400mm give 4 controllable stop positions across a 460mm total travel, with a Ø50mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ50 mm
- Stroke 160 mm
- Stroke 2400 mm
- Total travel460 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X60X400
The AirTAC SCT50X60X400 is a tie-rod, double-acting multi-position cylinder that delivers four fixed rod positions from a single compact unit. By pressurising the two piston sections independently or together, the rod stops precisely at 0 mm, 60 mm, 400 mm, or the full 460 mm total travel. Each 50 mm bore section generates 982 N of push force at 0.5 MPa, making it suitable for sequenced clamping or two-depth insertion tasks.
Built with a 20 mm diameter hard-chrome plated rod and PT1/4 ports, this cylinder includes an adjustable pneumatic cushion (21 mm long) at both ends to manage end-of-stroke deceleration. The body length A(SCT) is 243 mm, providing a rigid base for the tandem piston assembly. Operating pressure spans 0.15–1.0 MPa with standard TPU seals for a temperature range of -20 to +70 °C.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X60X400 Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X60X400 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke 1 / Stroke 2 | 60 / 400 mm |
| Total travel | 460 mm |
| Stop positions | 4 positions |
| Acting type | Double acting (tandem, multi-position) |
| Port size | PT1/4 |
| Rod thread | M16×1.5 |
| 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) | 60 mm |
| P2 (section 2) | 400 mm |
| P3 (both extended) | 460 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 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 SCT50X60X400
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm (SCT range 32–100). |
| ×60 | Stroke 1 (section 1) in mm. |
| ×400 | 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 SCT50X60X400 Is Used
Two-Depth Pressing
Achieves a light contact position at 60 mm and a full pressing depth at 460 mm, ideal for assembly fixtures requiring a pre-set approach stroke before applying full force.
Part Sorting Gate
Uses the 60 mm, 400 mm, and 460 mm positions to divert parts onto three separate conveyor lanes from a single linear actuator, simplifying multi-lane handling.
Sequential Clamping
Provides a low-force 60 mm clamp position to hold a workpiece for alignment, then extends to 460 mm for a secondary operation, all from one cylinder body.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X60X400 the Right Cylinder?
Choosing the SCT50X60X400 over two separate cylinders eliminates the need for complex external bracketing and synchronisation, reducing installation time and potential alignment errors. The four discrete stops are fixed by the 60 mm and 400 mm strokes, offering a repeatable mechanical sequence without electronic controls. If higher force is needed, stepping up to the 63 mm bore provides 1559 N of push per section at the same 0.5 MPa pressure. For replacement, match the 50 mm bore, both 60 mm and 400 mm stroke lengths, PT port thread, and basic mounting configuration. The long 400 mm section stroke warrants attention to rod support; use an external guide or linear rail if the load applies significant side force to prevent bending of the 20 mm rod.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 60 + 400 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 SCT50X60X400 FAQ
This tandem cylinder provides four distinct rod positions: 0 mm (fully retracted), 60 mm (first section extended), 400 mm (second section extended), and 460 mm (both sections extended). The two strokes are 60 mm and 400 mm, giving a total travel of 460 mm.
Yes, it can replace two individual cylinders in a tandem setup, but you must match the 50 mm bore, both 60 mm and 400 mm strokes, PT port threads, and basic mounting. The SCT uses a common rod line, so the force is applied per section, not combined, and the stops are fixed by the stroke lengths.
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