Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X75X175
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X75X175 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 75mm and 175mm give 4 controllable stop positions across a 250mm total travel, with a Ø50mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ50 mm
- Stroke 175 mm
- Stroke 2175 mm
- Total travel250 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X75X175
The SCT50X75X175 is a tandem multi-position cylinder offering four fixed rod positions: fully retracted (0 mm), 75 mm, 175 mm, and the combined total travel of 250 mm. Each 50 mm bore section delivers 982 N of push force at 0.5 MPa, making it a robust choice for material handling tasks that require distinct intermediate stops without servo control.
Built on a durable tie-rod design with a 20 mm diameter piston rod and M16x1.5 rod thread, this cylinder includes an adjustable air cushion (21 mm length) for smooth end-of-stroke deceleration. The standard PT1/4 ports and TPU seals suit general industrial environments operating between -20 and +70 °C.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X75X175 Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X75X175 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke 1 / Stroke 2 | 75 / 175 mm |
| Total travel | 250 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) | 75 mm |
| P2 (section 2) | 175 mm |
| P3 (both extended) | 250 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 SCT50X75X175
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm (SCT range 32–100). |
| ×75 | Stroke 1 (section 1) in mm. |
| ×175 | 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 SCT50X75X175 Is Used
Two-Stage Sorting Gate
Operates a diverter gate with three active positions—retracted for lane one, 75 mm stroke for lane two, and full 250 mm extension for lane three—directing packages on a conveyor line.
Multi-Depth Pressing
Provides two controlled pressing depths (75 mm and 175 mm) into a fixture before fully retracting, ideal for a two-step forming or insertion operation requiring distinct force applications.
Staggered Part Feeding
Advances components to three precise positions along a linear track: a 75 mm pre-stage, a 175 mm main feed, and a 250 mm full-extend position for a downstream pick-and-place.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X75X175 the Right Cylinder?
Select this 4-position SCT model when your process needs two independent, fixed intermediate stops, eliminating the cost and complexity of two separate cylinders with external hard stops. If the 982 N push force per section is insufficient, stepping up to a 63 mm bore provides 1559 N of push at the same 0.5 MPa pressure. For direct replacement, match the 50 mm bore, both the 75 mm and 175 mm strokes, PT port thread, and basic mounting configuration.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 75 + 175 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 SCT50X75X175 FAQ
This tandem cylinder provides four discrete mechanical stops: 0 mm (fully retracted), 75 mm (section one extended), 175 mm (section two extended), and 250 mm (both sections extended). The positions are fixed by the two stroke lengths and are not infinitely adjustable.
The SCT integrates two piston sections on a single common rod, guaranteeing a fixed spatial relationship between the 75 mm and 175 mm stops. This eliminates the need to synchronize two independent cylinders and their mountings, reducing overall envelope size and simplifying pneumatic control to just two directional valves.
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