Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X100X200S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X100X200S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 100mm and 200mm give 4 controllable stop positions across a 300mm total travel, with a Ø40mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ40 mm
- Stroke 1100 mm
- Stroke 2200 mm
- Total travel300 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X100X200S
The SCT40X100X200S creates four fixed rod positions from two piston sections on a single axis: fully retracted (0 mm), 100 mm, 200 mm, and the full combined travel of 300 mm. Each 40 mm bore section generates 628 N of push force at 0.5 MPa, rising to 1130 N at 0.9 MPa, driven through a 16 mm diameter rod with PT1/4 ports.
This model includes a factory-installed magnet, allowing CMSG, DMSG, or EMSG sensors to clamp directly onto the tie-rod barrel for non-contact position feedback at any of the four stops. The compact body length of 235 mm plus strokes houses adjustable air cushioning on both sections, ensuring smooth deceleration without the complexity of external shock absorbers.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X100X200S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X100X200S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke 1 / Stroke 2 | 100 / 200 mm |
| Total travel | 300 mm |
| Stop positions | 4 positions |
| Acting type | Double acting (tandem, multi-position) |
| Port size | PT1/4 |
| Rod thread | M12×1.25 |
| 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 (4)
| Position | Rod extension |
|---|---|
| P0 (retracted) | 0 mm |
| P1 (section 1) | 100 mm |
| P2 (section 2) | 200 mm |
| P3 (both extended) | 300 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 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 SCT40X100X200S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 40 | Bore size in mm (SCT range 32–100). |
| ×100 | Stroke 1 (section 1) in mm. |
| ×200 | 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 SCT40X100X200S Is Used
Two-Stage Diverter Gate
Operates a conveyor diverter with four positions: home, partial divert, full divert, and a combined bypass state, all from one compact tandem unit.
Multi-Depth Pressing
Provides three pressing depths (100, 200, 300 mm) plus a retracted safe position for a hot-stamping or labeling machine, controlled by simple 5/3 valves.
Sequential Clamping Fixture
Clamps a part at 100 mm stroke, then a second part at 200 mm, or both simultaneously at the 300 mm total extension, simplifying complex fixture pneumatics.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X100X200S the Right Cylinder?
Choose the SCT when your sequence needs four distinct, repeatable stop points without the cost and plumbing of two separate cylinders and external hard stops. The 100 mm and 200 mm stroke combination is ideal for a two-step feed-and-place operation. If your load requires higher force, stepping up to the 50 mm bore provides 982 N of push per section at the same 0.5 MPa pressure. For a direct replacement, match the 40 mm bore, both strokes (100 mm and 200 mm), the PT port thread, and the integrated magnet (-S suffix). With a 200 mm section stroke, ensure the rod is adequately guided if side loads are present to prevent bending.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 100 + 200 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 SCT40X100X200S FAQ
This tandem cylinder provides four discrete mechanical stops: 0 mm (fully retracted), 100 mm (first section extended), 200 mm (second section extended), and 300 mm (both sections extended). It is not infinitely positionable.
Yes, it directly replaces two 40 mm bore SC cylinders with 100 mm and 200 mm strokes where the rod lines must be coaxial. Ensure the replacement matches the PT ports, the -S magnet option for sensors, and the basic mounting style.
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