Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X10X420S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X10X420S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 10mm and 420mm give 4 controllable stop positions across a 430mm total travel, with a Ø40mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ40 mm
- Stroke 110 mm
- Stroke 2420 mm
- Total travel430 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X10X420S
The AirTAC SCT40X10X420S is a double-acting multi-position tandem cylinder that delivers four fixed rod positions: fully retracted (0 mm), 10 mm, 420 mm, and the combined total travel of 430 mm. Each piston section generates a push force of 628 N at 0.5 MPa, offering a compact solution for applications requiring a short initial step followed by a long secondary stroke.
This genuine AirTAC model features a 16 mm diameter rod and a built-in magnet (suffix -S), allowing direct mounting of CMSG, DMSG, or EMSG sensors along the tie-rod barrel for precise end-of-stroke or mid-stroke position feedback. The body length A(SCT) is 235 mm, and each end includes a 21 mm adjustable air cushion for smooth deceleration.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X10X420S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X10X420S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke 1 / Stroke 2 | 10 / 420 mm |
| Total travel | 430 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) | 10 mm |
| P2 (section 2) | 420 mm |
| P3 (both extended) | 430 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 SCT40X10X420S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 40 | Bore size in mm (SCT range 32–100). |
| ×10 | Stroke 1 (section 1) in mm. |
| ×420 | 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 SCT40X10X420S Is Used
Two-Stage Sorting Gate
Uses the short 10 mm stroke to nudge a part clear of a conveyor, then the long 420 mm stroke to fully divert it into a reject lane, all from a single compact cylinder.
Multi-Stop Material Feed
Provides a precise 10 mm registration stop for thin materials and a 420 mm advance for thicker components, enabling a single feeder to handle mixed product batches.
Two-Depth Clamping Fixture
Applies a light 10 mm touch for delicate part alignment followed by a full 430 mm clamping stroke, protecting parts from high initial impact force.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X10X420S the Right Cylinder?
Select the SCT tandem cylinder when you need two distinct, repeatable stroke lengths from a single actuator, eliminating the complexity of aligning two separate cylinders. For this 40 mm bore model, if higher force is required, consider stepping up to the SCT50 series, which provides 982 N of push force per section at 0.5 MPa. The SCT40X10X420S is a direct replacement for another AirTAC unit with identical 40 mm bore, 10 mm and 420 mm strokes, PT ports, basic mounting, and the -S magnet option. Due to the 420 mm stroke on the second section, ensure the load is guided or supported externally to prevent excessive side-loading and rod bending during extension.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 10 + 420 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 SCT40X10X420S FAQ
This tandem cylinder provides four discrete mechanical stops: 0 mm (fully retracted), 10 mm (first section extended), 420 mm (second section extended), and 430 mm (both sections extended). The positions are achieved by pressurizing the cylinder sections individually or together.
Yes, it is designed to consolidate two discrete linear moves into one compact body. It directly replaces two separate cylinders set for 10 mm and 420 mm strokes, saving space and simplifying pneumatic plumbing, provided the mounting style and -S magnet sensor requirement match.
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