Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X35X35S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X35X35S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 35mm and 35mm give 3 controllable stop positions across a 70mm total travel, with a Ø32mm bore, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Stroke 135 mm
- Stroke 235 mm
- Total travel70 mm
- Positions3 stops
- Port sizePT1/8
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X35X35S
The SCT32X35X35S is a tandem multi-position cylinder that delivers three fixed rod positions: fully retracted (0 mm), 35 mm, and the total travel of 70 mm. By pressurising either or both of its two 32 mm bore sections, you get repeatable mechanical stops without external hardware. Each actuated section provides 402 N of push force at 0.5 MPa, rising to 724 N at the maximum operating pressure of 0.9 MPa.
This model includes a built-in magnet (-S suffix), allowing CMSG, DMSG, or EMSG sensors to clamp directly onto the tie-rod barrel for end-of-stroke or mid-position confirmation. The 12 mm diameter piston rod and M10x1.25 rod-end thread are standard for the 32 mm bore. Adjustable air cushioning at both ends of each section decelerates the piston smoothly, with a cushion length of 21 mm, while the body length A(SCT) is 233 mm.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X35X35S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X35X35S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø32 mm |
| Stroke 1 / Stroke 2 | 35 / 35 mm |
| Total travel | 70 mm |
| Stop positions | 3 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 (3)
| Position | Rod extension |
|---|---|
| P0 (retracted) | 0 mm |
| P1 (section 1) | 35 mm |
| P2 (both extended) | 70 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 SCT32X35X35S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm (SCT range 32–100). |
| ×35 | Stroke 1 (section 1) in mm. |
| ×35 | 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 SCT32X35X35S Is Used
3-Position Diverter Gate
Use the three discrete stops (0, 35, 70 mm) to route small packages or components down two different conveyor lanes from a single infeed point.
Two-Depth Press Insertion
Drive a press tool to a partial insertion depth at 35 mm and a full seating depth at 70 mm, with the magnet confirming each position before the next cycle.
Multi-Stop Part Feeding
Advance a workpiece in two controlled steps of 35 mm each for a two-stage drilling or staking operation, eliminating the need for a stepper motor on a simple slide.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X35X35S the Right Cylinder?
Choose the SCT when your application needs two or three discrete stopping points along a single linear axis without the complexity of two separate cylinders and a coupler. This 32 mm bore model suits light sorting or diverting tasks. If you require higher thrust, the next step up is the 40 mm bore, which delivers 628 N of push per section at 0.5 MPa. For drop-in replacement, match the bore (32 mm), both strokes (35 mm each), the PT port thread, and the built-in magnet (-S). Any replacement must be an AirTAC SCT of identical configuration to preserve the three-position sequence.
Multi-position checklist
- ✓ Need 3 repeatable stops?
- ✓ Section strokes 35 + 35 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 SCT32X35X35S FAQ
It provides three distinct mechanical stop positions because both section strokes are equal at 35 mm. The rod positions are 0 mm (fully retracted), 35 mm (first section extended), and 70 mm (both sections extended, total travel).
A direct functional replacement must match the 32 mm bore, both 35 mm strokes, the PT port thread, and the built-in magnet for sensor compatibility. The mounting style must also be identical. Using a different brand risks mismatched body length, port locations, or cushion performance.
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