Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X98X98S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X98X98S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 98mm and 98mm give 3 controllable stop positions across a 196mm total travel, with a Ø32mm bore, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Stroke 198 mm
- Stroke 298 mm
- Total travel196 mm
- Positions3 stops
- Port sizePT1/8
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X98X98S
The SCT32X98X98S is a double-acting multi-position tandem cylinder that provides three fixed rod positions: fully retracted (0 mm), the first stroke stop at 98 mm, and the fully extended total travel at 196 mm. This configuration is achieved by pressurising either or both of its two 32 mm bore piston sections, each generating a push force of 402 N at 0.5 MPa. The unit features a 12 mm diameter piston rod and PT1/8 port threads.
Equipped with a built-in magnet, this model is ready for direct mounting of CMSG, DMSG, or EMSG reed and solid-state sensors for precise end-of-stroke detection without additional brackets. The cylinder body has a fixed length of 233 mm and uses an adjustable pneumatic cushion system with a 21 mm cushion length to decelerate the load smoothly at both ends of the travel. It operates on filtered air within a standard pressure range of 0.15 to 1.0 MPa.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X98X98S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X98X98S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø32 mm |
| Stroke 1 / Stroke 2 | 98 / 98 mm |
| Total travel | 196 mm |
| Stop positions | 3 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 (3)
| Position | Rod extension |
|---|---|
| P0 (retracted) | 0 mm |
| P1 (section 1) | 98 mm |
| P2 (both extended) | 196 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 SCT32X98X98S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm (SCT range 32–100). |
| ×98 | Stroke 1 (section 1) in mm. |
| ×98 | 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 SCT32X98X98S Is Used
3-Position Diverter Gate
Actuates a gate on a conveyor to three fixed positions: closed (0 mm), divert to lane A (98 mm), and divert to lane B (196 mm). The integrated magnet allows for sensor confirmation at each stop.
Two-Depth Part Stamping
Provides two controlled pressing depths in a small assembly fixture. The first piston section extends to 98 mm for a shallow form, and both sections extend to 196 mm for a full-depth form, with 402 N of force per section.
Multi-Stop Material Stop
Serves as a retractable material stop with two active positions. The rod stops material at 98 mm for one product length and at 196 mm for a second, retracting fully to 0 mm to let parts pass.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X98X98S the Right Cylinder?
Select this 3-position cylinder when your application requires a compact actuator that can reliably stop at two distinct extended points without the complexity of two separate cylinders and external hard stops. With identical strokes, it is ideal for sorting gates or diverters that need a central home position and two offset positions. If your load requires more force, 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 98 mm strokes, PT port thread, and the integrated magnet feature. The S suffix is critical for sensor compatibility. As both section strokes are under 300 mm, rod bending under compressive load is typically not a limiting factor, but always ensure the load is guided to prevent side forces on the rod bearing.
Multi-position checklist
- ✓ Need 3 repeatable stops?
- ✓ Section strokes 98 + 98 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 SCT32X98X98S FAQ
This model provides 3 distinct mechanical stop positions because its two internal strokes are identical. The rod positions are 0 mm (fully retracted), 98 mm (first section extended), and 196 mm (both sections extended, which is the total travel).
Yes, it is designed to do exactly that in a more compact footprint. A direct replacement requires matching the 32 mm bore, both 98 mm strokes, PT port threads, and the integrated magnet (S suffix) for sensor mounting. It eliminates the need for external hard stops and simplifies pneumatic plumbing.
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