Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X100X100SH
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X100X100SH is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 100mm and 100mm give 3 controllable stop positions across a 200mm total travel, with a Ø40mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ40 mm
- Stroke 1100 mm
- Stroke 2100 mm
- Total travel200 mm
- Positions3 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X100X100SH
The SCT40X100X100SH is a double-acting multi-position cylinder that delivers three fixed rod positions: fully retracted, 100 mm, and 200 mm total travel. Each of the two 40 mm bore sections generates 628 N of push force at 0.5 MPa, making it suitable for sorting gates or two-depth clamping fixtures that require repeatable mechanical stops without electronic controls.
This model is configured with a built-in magnet for direct mounting of CMSG/DMSG sensors and high-temperature Viton (FKM) seals, extending the operating range to 0–150 °C. The 16 mm diameter piston rod and 21 mm air cushion provide smooth deceleration at each stop, while the tie-rod construction keeps the 235 mm body length rigid under cycling.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X100X100SH Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X100X100SH |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke 1 / Stroke 2 | 100 / 100 mm |
| Total travel | 200 mm |
| Stop positions | 3 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 (3)
| Position | Rod extension |
|---|---|
| P0 (retracted) | 0 mm |
| P1 (section 1) | 100 mm |
| P2 (both extended) | 200 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 SCT40X100X100SH
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 40 | Bore size in mm (SCT range 32–100). |
| ×100 | 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 SCT40X100X100SH Is Used
3-Way Diverter Gate
Use the three discrete stops to route packages or parts to three separate conveyor lanes, controlled purely by pressurising section one, section two, or both.
Two-Depth Pressing
Achieve a shallow pre-press at the 100 mm position and a full-depth press at 200 mm, ensuring consistent part forming without a servo axis.
Staged Clamping Fixture
Clamp a workpiece lightly at the intermediate 100 mm stop for alignment, then advance to the full 200 mm stroke for high-force machining hold.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X100X100SH the Right Cylinder?
Choose the SCT40X100X100SH when your application needs three distinct mechanical stop positions from a single compact assembly—it eliminates the complexity of two separate cylinders and external hard stops. If your force requirement is lower, stepping down to the 32 mm bore provides 402 N push per section; for heavier loads, the 50 mm bore delivers 982 N per section at the same 0.5 MPa pressure. Always match both 100 mm strokes, the PT port thread, and the SCT mounting style when replacing an existing unit.
With 100 mm strokes per section, rod bending is not a primary concern under axial loads, but if the tooling applies a significant side load, an external guide rail is recommended to protect the rod bearing and seals.
Multi-position checklist
- ✓ Need 3 repeatable stops?
- ✓ Section strokes 100 + 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 SCT40X100X100SH FAQ
It provides three distinct mechanical stop positions because both section strokes are equal at 100 mm. The rod positions are 0 mm (fully retracted), 100 mm (one section extended), and 200 mm (both sections extended, total travel).
Yes, if your sequence requires only the three fixed positions (0, 100, 200 mm) and the per-section force of 628 N at 0.5 MPa is sufficient. The SCT eliminates the need to synchronise two cylinders and their valving, but note it does not double the force—each actuated section still delivers the standard 40 mm bore thrust.
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