Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X525X100S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X525X100S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 525mm and 100mm give 4 controllable stop positions across a 625mm total travel, with a Ø63mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ63 mm
- Stroke 1525 mm
- Stroke 2100 mm
- Total travel625 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X525X100S
The AirTAC SCT63X525X100S is a double-acting multi-position tie-rod cylinder that delivers four distinct mechanical stops along its 625 mm total travel. By pressurising either of its two tandem piston sections independently or together, the rod extends to 0 mm, 100 mm, 525 mm, or the full 625 mm position. The first section's 525 mm stroke is a non-standard made-to-order length, while the second section uses a standard 100 mm stroke, giving this actuator a unique asymmetric positioning profile.
Each 63 mm bore section generates 1559 N of push force at 0.5 MPa, rising to 2805 N at the maximum operating pressure of 0.9 MPa. The 20 mm diameter rod and 28 mm adjustable air cushion at each end manage deceleration across the long travel. A built-in magnet (suffix -S) allows CMSG, DMSG, or EMSG sensors to mount directly on the tie-rod barrel for non-contact position sensing at any of the four stops.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X525X100S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X525X100S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø63 mm |
| Stroke 1 / Stroke 2 | 525 / 100 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, 28 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) | 525 mm |
| P2 (section 2) | 100 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 (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 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 SCT63X525X100S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 63 | Bore size in mm (SCT range 32–100). |
| ×525 | Stroke 1 (section 1) in mm. |
| ×100 | 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 SCT63X525X100S Is Used
Long-Reach Sorting Gate
Diverts packages to four separate conveyor lanes using the 0, 100, 525, and 625 mm positions, with the long stroke reaching across a wide sorting bed.
Two-Depth Press with Offset
Provides a shallow 100 mm pressing depth and a deep 525 mm pressing depth, plus a fully retracted safe position and a fully extended 625 mm ejection stroke.
Multi-Station Assembly Index
Shuttles a fixture to four inline assembly stations spaced at 100 mm, 525 mm, and 625 mm from the home position, controlled by sensor feedback from the built-in magnet.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X525X100S the Right Cylinder?
Select the SCT63X525X100S when a single actuator must index a load to four fixed positions without the complexity of two separate cylinders and external hard stops. The 63 mm bore provides a mid-range force capability; if the application requires more thrust at the same pressure, stepping up to the 80 mm bore (2513 N push at 0.5 MPa) is an option, while the 50 mm bore (982 N) suits lighter payloads. The non-standard 525 mm section stroke requires a made-to-order lead time.
For replacement, match the 63 mm bore, both strokes (525 mm and 100 mm), the PT port thread, and the built-in magnet (-S). This model uses a basic mount with no additional brackets; if a pivoting mount is needed, a rear clevis (CA or CB) must be specified at the time of order. Given the extended 525 mm stroke, ensure the load is guided externally to prevent rod buckling and side-load damage to the bearing.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 525 + 100 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 SCT63X525X100S FAQ
This tandem cylinder provides four discrete mechanical stops: fully retracted (0 mm), section two extended (100 mm), section one extended (525 mm), and both sections extended for the total travel (625 mm). The 525 mm stroke is a non-standard made-to-order length.
Yes, if the application currently uses two individual cylinders with external hard stops to achieve four positions. The SCT integrates both strokes on a single common rod, reducing mounting space and eliminating the need to synchronise two separate actuators. The replacement must match the 63 mm bore, the 525 mm and 100 mm strokes, and the PT port thread.
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