Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X30X100
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X30X100 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 30mm and 100mm give 4 controllable stop positions across a 130mm total travel, with a Ø63mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ63 mm
- Stroke 130 mm
- Stroke 2100 mm
- Total travel130 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X30X100
The SCT63X30X100 tandem cylinder delivers four fixed rod positions—0 mm, 30 mm, 100 mm, and the full 130 mm combined stroke—using two independently controlled piston sections on a common 20 mm rod. Each section generates 1559 N of push force at 0.5 MPa (2805 N at the maximum operating pressure of 0.9 MPa), making it a compact alternative to complex multi-actuator setups.
Built on a rugged tie-rod design with a 249 mm body length and 28 mm of adjustable air cushion at each end, this genuine AirTAC unit decelerates loads smoothly across all four stop positions. The PT1/4 ports and M16x1.5 rod thread integrate directly into standard pneumatic circuits without special manifolds.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X30X100 Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X30X100 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø63 mm |
| Stroke 1 / Stroke 2 | 30 / 100 mm |
| Total travel | 130 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) | 30 mm |
| P2 (section 2) | 100 mm |
| P3 (both extended) | 130 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 SCT63X30X100
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 63 | Bore size in mm (SCT range 32–100). |
| ×30 | 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 SCT63X30X100 Is Used
Two-Way Diverter Gate
Use the 30 mm stroke to shift a flap gate to a bypass lane and the 100 mm stroke to fully open the main flow path, giving three distinct routing positions from one compact actuator.
Multi-Depth Pressing
Actuate the 30 mm section for a light pre-clamp and the 100 mm section for the full forming stroke, achieving two working depths without resetting mechanical tooling.
Staged Part Feeding
Control a pusher to advance parts by 30 mm for inspection, then by an additional 100 mm to load the next station, eliminating the need for a dual-cylinder escapement mechanism.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X30X100 the Right Cylinder?
Choose the SCT63X30X100 when your process needs two distinct mid-stroke stopping points without the cost and footprint of two separate 63 mm bore cylinders and external hard stops. If your thrust requirement is lower, the 50 mm bore SCT50 series provides 982 N push per section at 0.5 MPa; for heavier tooling, step up to the 80 mm bore SCT80 which delivers 2513 N per section at the same pressure. The 30 mm first stroke is non-standard, so verify lead time.
For a drop-in replacement, match the 63 mm bore, both strokes (30 mm and 100 mm), PT port thread, and basic mounting configuration exactly. If you are adding external guides, note that the 130 mm total extended length with a 20 mm rod may require a linear slide or rod-eye alignment coupler to prevent side-load induced bushing wear.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 30 + 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 SCT63X30X100 FAQ
This tandem cylinder provides four discrete rod positions: fully retracted (0 mm), the first section extended (30 mm), the second section extended (100 mm), and both sections extended for the total travel (130 mm). The stops are fixed by the internal piston strokes and are not infinitely adjustable.
Yes, if your sequence requires two distinct mid-stroke positions. The SCT63X30X100 integrates both strokes on a single rod line, reducing mounting hardware and eliminating the need to synchronize two separate actuators. Ensure the replacement matches the 30 mm and 100 mm strokes, PT1/4 ports, and basic mounting.
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