Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X75X175S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X75X175S 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 Ø32mm bore, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Stroke 175 mm
- Stroke 2175 mm
- Total travel250 mm
- Positions4 stops
- Port sizePT1/8
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X75X175S
The SCT32X75X175S is a double-acting multi-position tandem cylinder that delivers four fixed rod positions from its two piston sections: fully retracted (0 mm), 75 mm, 175 mm, and the total extended travel of 250 mm. With a 12 mm diameter rod and M10x1.25 rod-end thread, each section generates 402 N of push force at 0.5 MPa, making it a compact solution for light-duty sequencing tasks.
This specific model includes a built-in magnet, signified by the 'S' suffix, allowing easy mounting of CMSG, DMSG, or EMSG sensors directly onto the tie-rod barrel for non-contact position feedback. The cylinder features an adjustable air cushion (21 mm length) in both end caps for smooth deceleration, operating on standard PT1/8 ports with a body length of 233 mm.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X75X175S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X75X175S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø32 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 | PT1/8 |
| Rod thread | M10×1.25 |
| 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 (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 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 SCT32X75X175S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 32 | 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 SCT32X75X175S Is Used
Multi-Stop Diverter Gate
Actuates a diverter chute to four distinct positions (0, 75, 175, 250 mm) in a conveyor system, sorting small packages to different lanes based on sensor input.
Two-Depth Pressing Station
Provides two controlled pressing depths in a light assembly fixture. The first section extends to 75 mm for a pre-load, and the second section adds 175 mm for the full press stroke.
Sequential Part Feeding
Controls a multi-stage escapement mechanism, releasing parts at 75 mm, 175 mm, or full 250 mm extension based on the machine's cycle step, ensuring precise material handling.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X75X175S the Right Cylinder?
Choose the SCT32X75X175S when your application requires a single, compact actuator to reach four distinct stop points, eliminating the cost and complexity of two separate cylinders with external hard stops. If you need higher force at each position, consider stepping up to the 40 mm bore SCT40 series, which provides 628 N of push force per section at the same 0.5 MPa pressure. For a direct replacement, match the 32 mm bore, both strokes (75 mm and 175 mm), PT port thread, and the built-in magnet; this model uses a basic mount, so confirm your existing mounting brackets are compatible.
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 SCT32X75X175S FAQ
This tandem cylinder provides four discrete mechanical stop positions: 0 mm (fully retracted), 75 mm (first section extended), 175 mm (second section extended), and 250 mm (both sections extended, which is the total travel).
The SCT integrates two strokes into one rod line, guaranteeing fixed, repeatable stop positions without needing external brackets, alignment, or additional valving for two separate bodies. It saves installation space and simplifies the pneumatic circuit, though the force output per section remains the same as a single SC32 cylinder at 402 N push at 0.5 MPa.
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