Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X100X50
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X100X50 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 100mm and 50mm give 4 controllable stop positions across a 150mm total travel, with a Ø50mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ50 mm
- Stroke 1100 mm
- Stroke 250 mm
- Total travel150 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X100X50
The SCT50X100X50 is a 50 mm bore tandem cylinder that creates four fixed rod positions: fully retracted (0 mm), 50 mm, 100 mm, and the combined 150 mm total travel. Each piston section generates 982 N of push force at 0.5 MPa, rising to 1767 N at the 0.9 MPa maximum operating pressure, driven through a rigid 20 mm diameter rod.
With a 21 mm air cushion at each end and a 243 mm body length, this tie-rod cylinder decelerates loads smoothly without external shock absorbers. The 100 mm and 50 mm stroke pairing suits tasks needing two distinct extended stops, such as a two-depth pressing operation or a diverter gate with an intermediate position.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X100X50 Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X100X50 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke 1 / Stroke 2 | 100 / 50 mm |
| Total travel | 150 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) | 50 mm |
| P3 (both extended) | 150 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 SCT50X100X50
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm (SCT range 32–100). |
| ×100 | 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 SCT50X100X50 Is Used
Two-Depth Pressing
Use the 50 mm and 100 mm stops to press components to two different depths in a single cycle, eliminating the need for a second press station.
3-Way Diverter Gate
Position a chute or gate at retracted (0 mm), mid (50 mm), or full (150 mm) extension to sort packages or bulk material onto three separate conveyors.
Multi-Stop Clamping
Clamp workpieces of two different thicknesses by selecting the 100 mm or 150 mm total travel position, providing consistent holding force for each part variant.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X100X50 the Right Cylinder?
Choose the SCT50X100X50 when your process requires a 50 mm bore with two separate extension stops instead of a single-stroke cylinder and external hard stops. If your force requirement is lower, the 40 mm bore SCT40X100X50 provides 628 N push per section; for heavier loads, the 63 mm bore delivers 1559 N push at the same 0.5 MPa.
For direct replacement, match the 50 mm bore, the 100 mm and 50 mm strokes, PT port thread, and basic mounting. If you need sensor feedback, specify the -S magnet option to clamp CMSG or DMSG sensors directly onto the tie-rod barrel. Since the 100 mm stroke section extends significantly, ensure the rod is guided if side loads are present to prevent bending.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 100 + 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 SCT50X100X50 FAQ
It provides 4 discrete mechanical stops: 0 mm (fully retracted), 50 mm (section 2 extended), 100 mm (section 1 extended), and 150 mm (both sections extended). These are fixed positions, not infinitely variable.
No, this is a standard double-acting tandem cylinder. If air pressure is exhausted or lost, the piston will drift from its position. To hold a load at a mid-stroke stop without live pressure, you must add an external rod lock or a pilot-operated check valve.
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