Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X200X50
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X200X50 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 200mm and 50mm give 4 controllable stop positions across a 250mm total travel, with a Ø63mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ63 mm
- Stroke 1200 mm
- Stroke 250 mm
- Total travel250 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X200X50
The SCT63X200X50 is a tandem double-acting pneumatic cylinder that provides four fixed rod positions—0 mm, 50 mm, 200 mm, and the combined total travel of 250 mm—by independently pressurising its two piston sections. Each 63 mm bore section generates a push force of 1559 N at 0.5 MPa, rising to 2805 N at the maximum operating pressure of 0.9 MPa, making it suitable for multi-stop material handling where a single actuator must serve two distinct extension depths.
This tie-rod cylinder uses a 20 mm diameter piston rod with an M16×1.5 male thread and PT1/4 ports. The body length A(SCT) is 249 mm, and each end cap incorporates a 28 mm adjustable air cushion to decelerate the load smoothly. Standard TPU seals give an operating temperature range of -20 °C to +70 °C, and the unit is rated for filtered air at 0.15–1.0 MPa.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X200X50 Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X200X50 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø63 mm |
| Stroke 1 / Stroke 2 | 200 / 50 mm |
| Total travel | 250 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) | 200 mm |
| P2 (section 2) | 50 mm |
| P3 (both extended) | 250 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 SCT63X200X50
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 63 | Bore size in mm (SCT range 32–100). |
| ×200 | Stroke 1 (section 1) in mm. |
| ×50 | 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 SCT63X200X50 Is Used
Two-Depth Press-Fit Assembly
Use the 200 mm stroke for the primary insertion and the additional 50 mm stroke for a secondary pressing operation, achieving two assembly depths with one compact tandem cylinder.
Dual-Lane Product Diverting
Position a diverter gate at 0 mm (lane A), 50 mm (neutral), 200 mm (lane B), or 250 mm (maintenance bypass) by sequencing pressure to each piston section.
Multi-Stop Part Feeding
Stop a pallet or workpiece carrier at two distinct stations along a conveyor—200 mm for the first station and an additional 50 mm for a precise secondary inspection or labelling stop.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X200X50 the Right Cylinder?
Choose the SCT when your process needs a single actuator to stop reliably at two different extension points without the complexity of two separate cylinders and external hard stops. The 200 mm section handles the primary long travel, while the 50 mm section adds a precise secondary offset—ideal for two-depth pressing or a two-lane diverter. If your force requirement is lower, stepping down to a 50 mm bore reduces the per-section push to 982 N at 0.5 MPa; for heavier tooling, the 80 mm bore provides 2513 N per section at the same pressure.
For a drop-in replacement, match the 63 mm bore, both strokes (200 mm and 50 mm), PT port thread, and basic mounting configuration. If your original unit carries a magnet suffix (-S), ensure the replacement also includes the built-in magnet for sensor compatibility. With the 200 mm section stroke, consider external guide rods or a linear rail if the load applies significant side force or the rod is subjected to bending moments.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 200 + 50 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 SCT63X200X50 FAQ
This cylinder provides four discrete mechanical stops: fully retracted (0 mm), the first section extended to 50 mm, the second section extended to 200 mm, and both sections extended for the total travel of 250 mm. The stops are fixed by the two stroke lengths and are not infinitely adjustable.
Yes, if your application currently uses two 63 mm bore cylinders to achieve two different fixed extension lengths, the SCT63X200X50 can often consolidate them into a single actuator body. You must match the 200 mm and 50 mm strokes, PT1/4 ports, and basic mounting. Note that the force output is per-section (1559 N push at 0.5 MPa), not a combined force from both sections acting together.
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