
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X35X50 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 35mm and 50mm give 4 controllable stop positions across a 85mm total travel, with a Ø32mm bore, PT1/8 ports and adjustable end cushioning.
The SCT32X35X50 is a tandem multi-position pneumatic cylinder that delivers four fixed rod positions—0 mm, 35 mm, 50 mm, and the full 85 mm total travel—by pressurising either or both of its 32 mm bore sections independently. Each actuated section provides approximately 402 N of push force at 0.5 MPa, making it suitable for light sorting and diverting tasks where two different extended stops are needed from one compact unit.
Built on a durable tie-rod body with a 12 mm diameter rod and M10x1.25 rod thread, this cylinder includes adjustable air cushioning with a 21 mm cushion length to manage end-of-stroke impact. The PT1/8 ports and standard TPU seals support an operating range of -20 to +70 °C, while the body length A(SCT) of 233 mm helps designers plan tight machine envelopes.
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X35X50 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø32 mm |
| Stroke 1 / Stroke 2 | 35 / 50 mm |
| Total travel | 85 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.
| Position | Rod extension |
|---|---|
| P0 (retracted) | 0 mm |
| P1 (section 1) | 35 mm |
| P2 (section 2) | 50 mm |
| P3 (both extended) | 85 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.
| 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.
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm (SCT range 32–100). |
| ×35 | Stroke 1 (section 1) in mm. |
| ×50 | 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.
Use the 35 mm stroke to divert parts to a primary chute and the 50 mm stroke to a secondary lane, all from a single actuator with four distinct stopping points.
Achieve two different pressing depths in a light assembly fixture—extend to 35 mm for a pre-form step and 50 mm for the final form, with the tandem design ensuring repeatable stop accuracy.
Control a material gate with a partially open position at 35 mm for small items and a fully open position at 50 mm for larger components, eliminating the need for two single-stroke cylinders.
Choose the SCT32X35X50 when your process requires two distinct extended positions without the complexity of two separate cylinders and external hard stops. The 35 mm and 50 mm strokes give you a short and a medium extension from the same rod line, ideal for two-step feeding or gate control. If you need higher force, stepping up to the 40 mm bore provides 628 N push per section at 0.5 MPa.
For a drop-in replacement, match the 32 mm bore, both 35 mm and 50 mm strokes, PT port thread, and basic mounting configuration. If your application includes a magnet for sensor feedback, specify the -S suffix. Note that with a total travel of 85 mm, rod deflection is minimal, but always align the load axially to prevent side-load wear on the rod bearing.
Multi-position checklist
This model provides 4 discrete rod positions: fully retracted (0 mm), first section extended (35 mm), second section extended (50 mm), and both sections extended for the total travel of 85 mm. The positions are fixed by the two stroke lengths and are not infinitely adjustable.
Yes, if your sequence requires a 35 mm and a 50 mm stroke from a common mounting point. The SCT tandem design consolidates these two moves into one rod line, saving space and reducing mounting hardware. Ensure the per-section force of 402 N at 0.5 MPa meets the load requirements for each stop position.
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