Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X175X175S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X175X175S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 175mm and 175mm give 3 controllable stop positions across a 350mm total travel, with a Ø50mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ50 mm
- Stroke 1175 mm
- Stroke 2175 mm
- Total travel350 mm
- Positions3 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X175X175S
The SCT50X175X175S is a tie-rod tandem cylinder that provides three fixed rod positions: fully retracted (0 mm), mid-stroke (175 mm), and full extension (350 mm). By pressurising one or both of its 50 mm bore sections, you get 982 N of push force per section at 0.5 MPa, rising to 1767 N at the maximum operating pressure of 0.9 MPa. The 20 mm diameter piston rod and 21 mm adjustable air cushion at each end help manage kinetic energy at the end of travel.
This model includes a factory-installed magnetic piston ring, designated by the -S suffix, allowing CMSG, DMSG, or EMSG solid-state and reed sensors to be clamped directly onto the tie-rod barrel for non-contact position feedback. The standard TPU seals and PT ports suit general industrial environments from -20 to +70 °C, and the 243 mm base body length keeps the assembly compact for its 350 mm total stroke.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X175X175S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X175X175S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke 1 / Stroke 2 | 175 / 175 mm |
| Total travel | 350 mm |
| Stop positions | 3 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 (3)
| Position | Rod extension |
|---|---|
| P0 (retracted) | 0 mm |
| P1 (section 1) | 175 mm |
| P2 (both extended) | 350 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 SCT50X175X175S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm (SCT range 32–100). |
| ×175 | 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 SCT50X175X175S Is Used
3-Position Sorting Gate
Diverts packages to three separate conveyor lanes using the retracted, mid-stroke, and fully extended positions for high-speed sortation.
Two-Stage Clamping
Applies a low-force pre-clamp at 175 mm before engaging full clamping pressure at 350 mm, protecting delicate assemblies from impact.
Multi-Level Lift Table
Raises a scissor lift to an ergonomic mid-height for loading and a higher elevation for transfer, controlled by two valve signals.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X175X175S the Right Cylinder?
Choose this 3-position cylinder when a single actuator must reliably stop at a midpoint and full extension, eliminating the complexity of two separate cylinders or external hard stops. The 175 mm per-section stroke fits common material handling and gate actuation tasks. If your load demands higher force, stepping up to the 63 mm bore provides 1559 N of push per section at the same 0.5 MPa supply pressure. For a direct replacement, match the 50 mm bore, both 175 mm strokes, PT port thread, and the magnetic piston option; the basic mounting style accepts standard foot or flange accessories from the SCT series.
Multi-position checklist
- ✓ Need 3 repeatable stops?
- ✓ Section strokes 175 + 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 SCT50X175X175S FAQ
It provides three distinct mechanical stops: 0 mm (retracted), 175 mm (first section extended), and 350 mm (both sections extended). The two equal strokes create a symmetrical mid-point.
Yes, the -S suffix indicates a built-in magnet compatible with AirTAC CMSG, DMSG, and EMSG sensors. These clamp onto the tie-rod barrel to detect the piston position without additional brackets.
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