Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X100X80
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X100X80 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 100mm and 80mm give 4 controllable stop positions across a 180mm total travel, with a Ø50mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ50 mm
- Stroke 1100 mm
- Stroke 280 mm
- Total travel180 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X100X80
The AirTAC SCT50X100X80 is a tandem multi-position cylinder that delivers four distinct, repeatable rod positions: 0 mm (fully retracted), 80 mm, 100 mm, and the total travel of 180 mm. Built on a 50 mm bore with a rigid 20 mm diameter piston rod and M16x1.5 rod-end threads, each actuated section provides a push force of 982 N at 0.5 MPa, scaling to a substantial 1767 N at the 0.9 MPa maximum operating pressure.
This tie-rod cylinder uses standard PT1/4 pneumatic ports and features an adjustable air cushion at both ends, with a 21 mm cushion length for smooth deceleration. The SCT body length A(SCT) is 243 mm, making it compact enough for inline mounting where two separate cylinders would consume more space. TPU seals are fitted as standard, rated for an operating temperature range of -20 to +70 °C with filtered air at 40 µm.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X100X80 Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X100X80 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke 1 / Stroke 2 | 100 / 80 mm |
| Total travel | 180 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) | 100 mm |
| P2 (section 2) | 80 mm |
| P3 (both extended) | 180 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 SCT50X100X80
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm (SCT range 32–100). |
| ×100 | Stroke 1 (section 1) in mm. |
| ×80 | 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 SCT50X100X80 Is Used
Two-Stage Sorting Gate
Actuate a diverter gate to three distinct flow paths by commanding the 0, 80, and 180 mm positions, routing products to different conveyor lanes.
Multi-Depth Pressing
Control a press platen to two different working depths (80 mm and 100 mm) plus full retraction, ideal for forming parts with stepped profiles.
Sequential Part Feeding
Use the 100 mm stroke for a primary part transfer and the 80 mm stroke for a secondary eject or staging motion, all from one compact tandem unit.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X100X80 the Right Cylinder?
Choose the SCT50X100X80 when your application requires a compact, single-axis actuator to index between four fixed positions without the complexity of multiple cylinders and external hard stops. This model is ideal where the two strokes are different, creating an asymmetric position pattern. If your force requirement is lower, stepping down to the 40 mm bore reduces per-section push to 628 N at 0.5 MPa; for higher thrust, the 63 mm bore provides 1559 N per section.
To replace an existing unit, match the 50 mm bore, both the 100 mm and 80 mm section strokes, PT port thread, and basic mounting configuration. Since the longer stroke section is 100 mm, rod buckling is not a primary concern under axial loads, but always ensure the load is guided if any significant side force is present.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 100 + 80 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 SCT50X100X80 FAQ
This model provides 4 distinct mechanical stops because the two section strokes are different. The rod positions are 0 mm (fully retracted), 80 mm (section 2 extended), 100 mm (section 1 extended), and 180 mm (both sections extended for total travel).
Yes, if your sequence requires only the discrete positions 0, 80, 100, and 180 mm. The SCT replaces two cylinders and their mounting hardware with a single tandem body, ensuring the position relationship is mechanically fixed. Ensure the replacement matches the 50 mm bore, PT ports, and basic mounting.
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