Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X350X100S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X350X100S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 350mm and 100mm give 4 controllable stop positions across a 450mm total travel, with a Ø63mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ63 mm
- Stroke 1350 mm
- Stroke 2100 mm
- Total travel450 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X350X100S
The SCT63X350X100S is a double-acting, multi-position tandem cylinder that delivers four fixed rod positions—0 mm, 100 mm, 350 mm, and the full 450 mm total travel—by pressurising its two piston sections independently or together. Each section provides a push force of 1559 N at 0.5 MPa, rising to 2805 N at 0.9 MPa, driven through a 20 mm diameter piston rod.
This model includes a built-in magnet, allowing CMSG, DMSG, or EMSG sensors to be clamped directly onto the tie-rod barrel for non-contact position sensing at any of the four stops. The cylinder body has a length of 249 mm and features a 28 mm adjustable air cushion on each section to manage end-of-stroke deceleration. The standard PT1/4 port and M16x1.5 rod thread ensure straightforward pneumatic connections.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X350X100S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X350X100S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø63 mm |
| Stroke 1 / Stroke 2 | 350 / 100 mm |
| Total travel | 450 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). 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) | 350 mm |
| P2 (section 2) | 100 mm |
| P3 (both extended) | 450 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 SCT63X350X100S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 63 | Bore size in mm (SCT range 32–100). |
| ×350 | 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 SCT63X350X100S Is Used
Two-Stage Part Sorting
Uses the four discrete positions to divert parts into three separate lanes. The rod moves to 100 mm for lane one, 350 mm for lane two, and 450 mm for lane three, all from a single compact actuator.
Multi-Depth Press-Fit Assembly
Executes a two-stage insertion sequence. The first section extends to 350 mm for an initial placement, and the second section adds 100 mm of travel for the final press-fit, ensuring consistent depth control at both stages.
Sequential Material Stop Gate
Acts as a programmable stop on a conveyor line. The rod can fully retract to allow passage, extend to 100 mm to stop small items, move to 350 mm for medium items, or reach 450 mm to block large packages.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X350X100S the Right Cylinder?
Select the SCT63X350X100S when an application requires a long primary stroke of 350 mm and a secondary 100 mm positioning step without the complexity of two separate cylinders and external hard stops. The four discrete positions are ideal for multi-stage feeding or sorting systems where space is at a premium. If the 1559 N push force per section at 0.5 MPa is insufficient, stepping up to the 80 mm bore provides 2513 N per section; for a lighter load, the 50 mm bore offers 982 N.
For a direct replacement, match the 63 mm bore, both the 350 mm and 100 mm strokes, the PT port thread, and the integrated magnet (-S suffix). Given the 350 mm stroke on the first section, ensure the guided load is aligned to prevent side-loading and rod bending; consider an external guide or rod support if the piston rod is subjected to significant radial forces during extension.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 350 + 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 SCT63X350X100S FAQ
This tandem cylinder provides four discrete mechanical stops. The rod positions are 0 mm (fully retracted), 100 mm (second section extended), 350 mm (first section extended), and 450 mm (both sections extended). The stops are fixed by the two stroke lengths and are not infinitely adjustable.
The SCT combines two piston sections on a single common rod, which guarantees a fixed spatial relationship between the two strokes and saves significant installation space compared to mounting two standard SC63 cylinders back-to-back with external brackets. It also simplifies pneumatic control, as only two directional valves are needed to achieve all four positions.
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