Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X25X65S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X25X65S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 25mm and 65mm give 4 controllable stop positions across a 90mm total travel, with a Ø32mm bore, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Stroke 125 mm
- Stroke 265 mm
- Total travel90 mm
- Positions4 stops
- Port sizePT1/8
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X25X65S
The SCT32X25X65S is a multi-position tandem cylinder that delivers four discrete rod stops—0 mm, 25 mm, 65 mm, and the combined 90 mm—from a single compact unit. Each 32 mm bore section provides 402 N of push force at 0.5 MPa, driven through a 12 mm diameter piston rod with M10x1.25 threads.
A built-in magnet allows CMSG, DMSG, or EMSG sensors to clamp directly onto the tie-rod barrel for reliable end-of-stroke or mid-position sensing without extra brackets. The cylinder body has an A-length of 233 mm and uses PT1/8 ports, making it a tidy solution for sorting or diverting tasks where space is tight.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X25X65S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X25X65S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø32 mm |
| Stroke 1 / Stroke 2 | 25 / 65 mm |
| Total travel | 90 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) | 25 mm |
| P2 (section 2) | 65 mm |
| P3 (both extended) | 90 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 SCT32X25X65S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm (SCT range 32–100). |
| ×25 | Stroke 1 (section 1) in mm. |
| ×65 | 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 SCT32X25X65S Is Used
Two-Way Diverter Gate
The four positions let a single cylinder guide packages to two different lanes—retract for lane A, extend to 25 mm for lane B, 65 mm for lane C, or full 90 mm travel to clear a reject chute.
Multi-Depth Pressing
Achieve two distinct pressing depths in one cycle. The first 25 mm stroke can set a component, and the second 65 mm section applies the full insertion force, with the 90 mm total travel used for part ejection.
Staged Part Feeding
Use the SCT32X25X65S to advance parts in two controlled steps. A 25 mm push separates a part from a stack, and the subsequent 65 mm stroke moves it fully into a nest, with magnetic sensors confirming each position.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X25X65S the Right Cylinder?
Choose the SCT32X25X65S when your process needs four fixed stopping points without the complexity of two separate cylinders and external hard stops. The 25 mm and 65 mm strokes give you a short advance and a longer second movement, ideal for two-step feeding. If you need more force per section, step up to the 40 mm bore which delivers 628 N push at 0.5 MPa. When replacing an existing unit, match the 32 mm bore, both the 25 mm and 65 mm strokes, the PT port thread, and the -S magnet option to keep sensor compatibility.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 25 + 65 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 SCT32X25X65S FAQ
It provides four distinct mechanical stop positions: fully retracted (0 mm), the first section extended (25 mm), the second section extended (65 mm), and both sections extended for the total travel of 90 mm.
Yes, it is designed to do exactly that. The SCT32X25X65S combines two strokes on one common rod line, giving you fixed 25 mm and 65 mm stops plus a combined 90 mm position, which eliminates the need to align and plumb two separate cylinders and their stop hardware.
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