Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X40X100
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X40X100 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 40mm and 100mm give 4 controllable stop positions across a 140mm total travel, with a Ø32mm bore, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Stroke 140 mm
- Stroke 2100 mm
- Total travel140 mm
- Positions4 stops
- Port sizePT1/8
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X40X100
The SCT32X40X100 is a tandem multi-position cylinder that delivers four fixed rod positions from two independent strokes on a common rod line. By pressurising the sections individually or together, the rod stops at 0 mm (retracted), 40 mm, 100 mm, or the full 140 mm total travel. Each 32 mm bore section generates 402 N of push force at 0.5 MPa, with a 12 mm diameter rod and M10x1.25 rod thread.
This tie-rod cylinder includes adjustable pneumatic cushioning at both ends of each section, with a 21 mm cushion length to decelerate the piston smoothly. The body length A(SCT) is 233 mm, making it compact enough for multi-stop diverting or sorting stations where space is limited. Operating pressure ranges from 0.15 to 1.0 MPa with standard TPU seals rated for -20 to +70 °C.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X40X100 Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X40X100 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø32 mm |
| Stroke 1 / Stroke 2 | 40 / 100 mm |
| Total travel | 140 mm |
| Stop positions | 4 positions |
| Acting type | Double acting (tandem, multi-position) |
| Port size | PT1/8 |
| Rod thread | M10×1.25 |
| 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) | 40 mm |
| P2 (section 2) | 100 mm |
| P3 (both extended) | 140 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 (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 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 SCT32X40X100
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm (SCT range 32–100). |
| ×40 | 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 SCT32X40X100 Is Used
Two-Way Part Diverting
Uses the 40 mm and 100 mm stops to guide parts into two separate lanes on a conveyor. The 140 mm full-extension position can clear a third path or reject station.
Multi-Depth Pressing
Provides two controlled pressing depths at 40 mm and 100 mm for assembly operations. The retracted and 140 mm positions handle part loading and ejection.
Staged Material Feeding
Advances material in two precise increments of 40 mm and 100 mm. The total 140 mm travel completes the full feed cycle, ideal for strip or wire processing.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X40X100 the Right Cylinder?
Choose the SCT when an application needs two or more fixed stop positions without the complexity of servo control or multiple single-rod cylinders. This 32 mm bore model suits light positioning tasks; if you require more thrust, stepping up to the 40 mm bore provides 628 N push per section at 0.5 MPa. For direct replacement, match the bore, both strokes (40 mm and 100 mm), PT port thread, and basic mounting style. The SCT is a tie-rod design and is not interchangeable with ISO 15552 profile cylinders. If a load must be held at an intermediate position without live air pressure, an external rod lock or pilot-operated check valve is required, as the air cushion does not act as a brake.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 40 + 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 SCT32X40X100 FAQ
It provides four distinct rod positions: 0 mm (fully retracted), 40 mm, 100 mm, and 140 mm (full extension). These are achieved by pressurising the 40 mm stroke section, the 100 mm stroke section, or both together.
No. The SCT is a tie-rod tandem cylinder and does not conform to ISO 15552 dimensions. You must replace it with another AirTAC SCT32X40X100 matching the bore, both strokes, PT ports, and basic mounting to ensure identical position stops and mounting footprint.
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