Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X600X25S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X600X25S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 600mm and 25mm give 4 controllable stop positions across a 625mm total travel, with a Ø50mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ50 mm
- Stroke 1600 mm
- Stroke 225 mm
- Total travel625 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X600X25S
The SCT50X600X25S is a double-acting multi-position tandem cylinder that provides four distinct rod-end stop locations: 0 mm (fully retracted), 25 mm, 600 mm, and the total extended travel of 625 mm. By pressurising the two piston sections independently or together, you can index between these fixed mechanical positions without external hard stops. Each 50 mm bore section generates 982 N of push force at 0.5 MPa, rising to 1767 N at the maximum operating pressure of 0.9 MPa.
This model includes a built-in magnet (-S suffix), allowing direct mounting of CMSG, DMSG, or EMSG reed and solid-state sensors on the tie-rod barrel for position confirmation. The 20 mm diameter piston rod and 21 mm adjustable air cushion at each end help manage the inertia of the long 600 mm primary stroke. Because the primary stroke exceeds the 500 mm standard limit, this cylinder is a made-to-order configuration with a body length A of 243 mm plus stroke contributions.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X600X25S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X600X25S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke 1 / Stroke 2 | 600 / 25 mm |
| Total travel | 625 mm |
| Stop positions | 4 positions |
| Acting type | Double acting (tandem, multi-position) |
| Port size | PT1/4 |
| Rod thread | M16×1.5 |
| 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). This configuration exceeds the 500 mm standard section stroke, so it is a non-standard / made-to-order build. Confirm against the product label before installation. Thread options: PT (standard) / G.
Stop Positions (4)
| Position | Rod extension |
|---|---|
| P0 (retracted) | 0 mm |
| P1 (section 1) | 600 mm |
| P2 (section 2) | 25 mm |
| P3 (both extended) | 625 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 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 SCT50X600X25S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm (SCT range 32–100). |
| ×600 | Stroke 1 (section 1) in mm. |
| ×25 | 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 SCT50X600X25S Is Used
Two-Stage Part Diverting
A short 25 mm stroke nudges a part off a conveyor into a reject lane, while the full 600 mm stroke extends to push accepted parts onto a parallel line, all from one compact cylinder.
Deep Reach with Fine Feed
The 600 mm stroke rapidly advances a gripper into a deep fixture, and the final 25 mm stroke provides a controlled, low-speed press fit without a second actuator.
Multi-Depth Assembly Stop
Use the 0, 25, 600, and 625 mm positions to insert a component to two different depths in a single cycle, ideal for stepped bores or sequential fastening.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X600X25S the Right Cylinder?
Select the SCT50X600X25S when your process needs two widely separated advance positions—a short 25 mm feed and a long 600 mm transfer—from a single actuator. This tandem design eliminates the complexity and plumbing of two separate cylinders with external stops. For higher force requirements, consider stepping up to the 63 mm bore (1559 N push per section at 0.5 MPa); for a lighter load, the 40 mm bore provides 628 N. To replace an existing unit, match the 50 mm bore, both strokes (600 mm and 25 mm), the PT port thread, and the built-in magnet. Given the 600 mm stroke, ensure the load is guided or supported to prevent rod buckling and side-load wear.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 600 + 25 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 SCT50X600X25S FAQ
This tandem cylinder provides four discrete rod-end positions: 0 mm (fully retracted), 25 mm, 600 mm, and 625 mm (total travel). The 25 mm and 600 mm positions are reached by pressurising each section individually, while the 625 mm position is reached by pressurising both sections simultaneously.
The force output is per single piston section and matches a standard SC cylinder of the same bore. For this 50 mm model, each section delivers 982 N pushing and 825 N pulling at 0.5 MPa. The two sections do not add their force together for a multi-position move; they simply provide the thrust to reach and hold each discrete stop.
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