Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X125X125
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X125X125 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 125mm and 125mm give 3 controllable stop positions across a 250mm total travel, with a Ø32mm bore, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Stroke 1125 mm
- Stroke 2125 mm
- Total travel250 mm
- Positions3 stops
- Port sizePT1/8
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X125X125
The AirTAC SCT32X125X125 is a tie-rod, multi-position tandem cylinder that delivers three fixed rod positions: fully retracted (0 mm), 125 mm, and the combined total travel of 250 mm. By pressurising either or both of its two piston sections, you achieve repeatable mechanical stops without external hard stops or complex controls. Each 32 mm bore section generates 402 N of push force at 0.5 MPa, rising to 724 N at the maximum operating pressure of 0.9 MPa.
This model features a 12 mm diameter piston rod with an M10x1.25 thread and PT1/8 ports. The integral adjustable air cushion at each end, with a cushion length of 21 mm, effectively decelerates the load, reducing impact and noise. With a body length of 233 mm plus strokes, it fits compactly into machines requiring sequenced, two-depth linear actuation.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X125X125 Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X125X125 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø32 mm |
| Stroke 1 / Stroke 2 | 125 / 125 mm |
| Total travel | 250 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) | 125 mm |
| P2 (both extended) | 250 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 SCT32X125X125
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm (SCT range 32–100). |
| ×125 | Stroke 1 (section 1) in mm. |
| ×125 | 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 SCT32X125X125 Is Used
Two-Position Diverter Gate
Use the 125 mm and 250 mm extended positions to divert packages or parts onto two separate conveyor lanes from a single infeed point, ensuring reliable, repeatable routing.
Sequential Part Stamping
Achieve a two-depth pressing or marking operation. The first 125 mm stroke performs an initial form, and pressurising the second section drives the tool to the full 250 mm depth for a secondary operation.
Multi-Stop Assembly Stop
Act as a programmable hard stop for a linear slide. Retract to 0 mm for part loading, extend to 125 mm for a first assembly station, and fully extend to 250 mm for a downstream process.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X125X125 the Right Cylinder?
The SCT multi-position cylinder is the ideal choice when an application requires two distinct extended positions from a single, compact actuator, replacing the need for two separate cylinders and their associated mounting hardware and valving. For this 125 mm per section stroke, ensure the rod is adequately guided if there is a significant side load, as the extended length can increase bending moments on the 12 mm rod. If a higher force is needed, stepping up to the SCT40X125X125 provides 628 N of push force per section at 0.5 MPa.
For a direct replacement, match the 32 mm bore, both 125 mm strokes, PT port thread, and basic mounting configuration exactly. This model does not include a magnet for sensors; if position sensing is required, select the SCT32X125X125-S variant.
Multi-position checklist
- ✓ Need 3 repeatable stops?
- ✓ Section strokes 125 + 125 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 SCT32X125X125 FAQ
This model provides 3 distinct mechanical stop positions because both piston sections have an equal 125 mm stroke. The rod positions are 0 mm (fully retracted), 125 mm (first section extended), and 250 mm (both sections extended for total travel).
Yes, if your sequence requires a 0 mm, 125 mm, and 250 mm linear move. The SCT integrates two piston sections on one rod line, eliminating the need to synchronise two separate cylinders, saving space and simplifying your pneumatic circuit and mounting.
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