Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X98X98
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X98X98 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 SCT32X98X98
The AirTAC SCT32X98X98 is a tie-rod multi-position cylinder that delivers three fixed rod positions: fully retracted (0 mm), first stop (98 mm), and full extension (196 mm). Each of its two piston sections generates 402 N of push force at 0.5 MPa, rising to 724 N at the 0.9 MPa maximum operating pressure, making it a precise actuator for light-duty, three-stop tasks.
Built with a 12 mm diameter rod and PT1/8 ports, the cylinder body has an A(SCT) length of 233 mm and features an adjustable air cushion of 21 mm on each section for smooth end-of-stroke deceleration. The standard TPU seals suit operating temperatures from -20 to +70 °C, and the default PT threaded ports ensure compatibility with common pneumatic fittings.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X98X98 Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X98X98 |
|---|---|
| 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 SCT32X98X98
| 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 SCT32X98X98 Is Used
Dual-Lane Diverter
A single SCT32X98X98 shifts a compact conveyor gate to three positions, directing small packages to a reject lane, a rework lane, or the main line without needing multiple actuators.
Three-Height Dispensing
The rod stops at 0, 98, and 196 mm allow a dispensing nozzle to clear a tall container, fill at a medium level, and bottom-fill to reduce foam, all with one clean cylinder setup.
Multi-Stop Clamping
Used in a light assembly fixture, the cylinder advances a clamp to a pre-set clearance position at 98 mm for part loading, then to full 196 mm travel for final clamping pressure.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X98X98 the Right Cylinder?
Select the SCT32X98X98 when a single actuator must reliably index between three hard stops, eliminating the complexity and air consumption of two separate cylinders with external stops. For higher force demands, step up to the SCT40 bore, which provides 628 N of push per section at 0.5 MPa. A direct replacement must match the 32 mm bore, both 98 mm strokes, PT port thread, and basic mounting configuration. If your application requires magnetic piston sensing, specify the -S suffix to enable CMSG or DMSG sensor mounting directly on the tie-rod barrel.
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 SCT32X98X98 FAQ
This model provides 3 distinct mechanical stops because both piston sections have an identical 98 mm stroke. The rod positions are 0 mm (fully retracted), 98 mm (first section extended), and 196 mm (both sections extended for total travel).
No, the SCT cylinder does not have a mechanical lock or brake. If air pressure is lost or the valve centers, the piston can drift from the 98 mm position. To securely hold a load at any intermediate stop, you must add an external rod brake or a pilot-operated check valve in the circuit.
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