Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X300X300
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X300X300 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 300mm and 300mm give 3 controllable stop positions across a 600mm total travel, with a Ø40mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ40 mm
- Stroke 1300 mm
- Stroke 2300 mm
- Total travel600 mm
- Positions3 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X300X300
The AirTAC SCT40X300X300 is a double-acting tandem cylinder that provides three fixed rod positions: fully retracted (0 mm), an intermediate stop at 300 mm, and full extension at 600 mm. Each piston section delivers a push force of 628 N at 0.5 MPa, making it a repeatable mechanical sequencing solution without complex controls.
Built on a 40 mm bore tie-rod platform with a 16 mm diameter rod and M12x1.25 rod thread, this cylinder uses PT1/4 ports and has a 21 mm adjustable air cushion. The body length A(SCT) is 235 mm, providing a compact envelope for its 600 mm total travel. At 0.9 MPa, the per-section thrust reaches 1130 N for demanding shift operations.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X300X300 Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X300X300 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke 1 / Stroke 2 | 300 / 300 mm |
| Total travel | 600 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) | 300 mm |
| P2 (both extended) | 600 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 SCT40X300X300
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 40 | Bore size in mm (SCT range 32–100). |
| ×300 | Stroke 1 (section 1) in mm. |
| ×300 | 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 SCT40X300X300 Is Used
Two-Position Diverter Gate
Uses the 300 mm and 600 mm stops to route packages or parts to two separate conveyor lanes from a single infeed point.
Multi-Depth Pressing
Provides a partial-engage step at 300 mm for pre-clamping before applying full 600 mm stroke force, preventing part damage.
Sequential Part Transfer
Moves a component to a 300 mm inspection station, then advances it to a 600 mm pick-off location in one machine cycle.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X300X300 the Right Cylinder?
Select the SCT40X300X300 when you need three distinct hard stops from a single pneumatic axis, eliminating the cost and wiring of two separate cylinders and valves. If your load requires more force, step up to the 50 mm bore SCT50X300X300, which provides 982 N of push per section at the same pressure. For a drop-in replacement, match the 40 mm bore, both 300 mm strokes, PT port thread, and basic mounting configuration. With a 300 mm section stroke, ensure the rod is externally guided if side loads are present to prevent bending or uneven seal wear.
Multi-position checklist
- ✓ Need 3 repeatable stops?
- ✓ Section strokes 300 + 300 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 SCT40X300X300 FAQ
It provides three discrete mechanical stops: 0 mm (retracted), 300 mm (first section extended), and 600 mm (both sections extended). The stops are fixed by the two 300 mm stroke sections.
Yes, if your application requires a 300 mm and a 600 mm end position. You must match the 40 mm bore, PT1/4 ports, and basic mount. The SCT uses one rod line and two piston sections, saving space and eliminating a second valve.
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Related AirTAC SCT Multi-Position Cylinders
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