Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X90X90
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X90X90 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 90mm and 90mm give 3 controllable stop positions across a 180mm total travel, with a Ø40mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ40 mm
- Stroke 190 mm
- Stroke 290 mm
- Total travel180 mm
- Positions3 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X90X90
The SCT40X90X90 is a double-acting multi-position cylinder that provides three fixed rod positions: fully retracted (0 mm), mid-stroke at 90 mm, and fully extended at 180 mm. Each of its two piston sections generates a push force of 628 N at 0.5 MPa, making it suitable for sorting or diverting tasks that require repeatable mechanical stops without complex controls.
Built on a rugged tie-rod design with a 16 mm diameter rod and PT1/4 ports, this genuine AirTAC cylinder incorporates an adjustable air cushion at each end to decelerate the load smoothly. The body length A(SCT) is 235 mm, and the per-section thrust climbs to 1130 N at the maximum operating pressure of 0.9 MPa.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X90X90 Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X90X90 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke 1 / Stroke 2 | 90 / 90 mm |
| Total travel | 180 mm |
| Stop positions | 3 positions |
| Acting type | Double acting (tandem, multi-position) |
| Port size | PT1/4 |
| Rod thread | M12×1.25 |
| 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) | 90 mm |
| P2 (both extended) | 180 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 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 SCT40X90X90
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 40 | Bore size in mm (SCT range 32–100). |
| ×90 | Stroke 1 (section 1) in mm. |
| ×90 | 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 SCT40X90X90 Is Used
3-Position Diverter Gate
Use the three discrete stops to guide packages onto a central conveyor lane or divert them left and right, achieving reliable sorting with a single tandem cylinder.
Two-Depth Pressing Station
Actuate one section for a partial pre-compression stroke at 90 mm, then pressurize both to reach the full 180 mm depth, ensuring consistent part insertion.
Multi-Stop Part Feeding
Control the rod to stop at a retracted safe position, a 90 mm intermediate loading point, and a 180 mm advanced placement point for pick-and-place tooling.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X90X90 the Right Cylinder?
Choose the SCT40X90X90 when your application needs three distinct, hard stops along a single linear axis, eliminating the cost and complexity of two separate cylinders with external brackets. If the 628 N push force per section is insufficient, stepping up to the 50 mm bore SCT50X90X90 provides 982 N per section at the same 0.5 MPa pressure. For a direct replacement, match the 40 mm bore, both 90 mm strokes, PT port thread, and basic mounting style exactly.
Multi-position checklist
- ✓ Need 3 repeatable stops?
- ✓ Section strokes 90 + 90 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 SCT40X90X90 FAQ
It provides three distinct mechanical stop positions because both piston sections have an identical 90 mm stroke. The rod can be positioned at 0 mm (fully retracted), 90 mm (one section extended), or 180 mm (both sections extended).
Yes, if your design currently uses two standard cylinders to achieve three positions, the SCT40X90X90 integrates both strokes into a single, compact tandem body. Ensure the replacement matches the 40 mm bore, 90 mm stroke per section, PT1/4 ports, and your required mounting accessories.
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