
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X100X250S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 100mm and 250mm give 4 controllable stop positions across a 350mm total travel, with a Ø32mm bore, PT1/8 ports and adjustable end cushioning.
The SCT32X100X250S is a double-acting multi-position tandem cylinder that delivers four distinct rod positions: 0 mm (fully retracted), 100 mm, 250 mm, and the total travel of 350 mm. Each 32 mm bore section generates 402 N of push force at 0.5 MPa, making it a compact solution for light-duty sorting or diverting tasks requiring three intermediate stops without complex servo controls.
This model includes a built-in magnet (-S suffix), allowing CMSG, DMSG, or EMSG sensors to be clamped directly onto the tie-rod barrel for end-of-stroke or intermediate position confirmation. The 12 mm diameter piston rod and 21 mm adjustable air cushion at each end ensure smooth deceleration across the full 350 mm combined stroke, while the PT1/8 port threads maintain compatibility with standard pneumatic fittings.
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X100X250S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø32 mm |
| Stroke 1 / Stroke 2 | 100 / 250 mm |
| Total travel | 350 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) | 100 mm |
| P2 (section 2) | 250 mm |
| P3 (both extended) | 350 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). |
| ×100 | Stroke 1 (section 1) in mm. |
| ×250 | 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.
Positions the diverter gate at retracted (lane 1), 100 mm (lane 2), 250 mm (lane 3), or 350 mm (lane 4) for sorting small packages onto four different conveyor tracks.
Advances a component to a 100 mm pre-insertion stage, then extends to the full 350 mm for final press-fit, using the 250 mm intermediate stop for a secondary tooling operation.
Controls a dispensing nozzle at three heights above a tray—100 mm, 250 mm, and 350 mm—for filling containers of different sizes on an automated packaging line.
Choose this SCT model when you need four fixed mechanical stops from a single cylinder body, avoiding the cost and alignment complexity of two separate actuators with external hard stops. The 100 mm and 250 mm section strokes provide asymmetric positioning ideal for two-step feeding or a diverter gate with a distinct intermediate park location. If higher force is required, stepping up to the SCT40 series provides 628 N of push per section at the same 0.5 MPa pressure.
For drop-in replacement, match the 32 mm bore, both strokes (100 mm and 250 mm), the PT port thread, and the integrated magnet. Note that with a combined stroke of 350 mm, side-loading on the 12 mm rod should be avoided; use an external guide or rod-alignment coupler if the load is not purely axial.
Multi-position checklist
It provides four discrete mechanical stop positions: 0 mm (fully retracted), 100 mm (first section extended), 250 mm (second section extended), and 350 mm (both sections extended). The positions are fixed by the two stroke lengths and are not infinitely adjustable.
Yes, the SCT32X100X250S can replace two individual SC32 cylinders with 100 mm and 250 mm strokes where three or four fixed intermediate positions are needed. It simplifies mounting and plumbing into a single tandem body. Ensure the replacement matches the 32 mm bore, both strokes, PT ports, and the magnetic piston option.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.