Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X25X160S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X25X160S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 25mm and 160mm give 4 controllable stop positions across a 185mm total travel, with a Ø32mm bore, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Stroke 125 mm
- Stroke 2160 mm
- Total travel185 mm
- Positions4 stops
- Port sizePT1/8
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X25X160S
The SCT32X25X160S is a double-acting tandem cylinder that delivers four fixed rod positions from two independent piston sections. With strokes of 25 mm and 160 mm, the reachable stops are 0 mm (fully retracted), 25 mm, 160 mm, and the combined total travel of 185 mm—ideal for sequencing two distinct short-throw and medium-throw operations in one compact unit.
Each 32 mm bore section generates 402 N of push force at 0.5 MPa (724 N at 0.9 MPa), driven through a 12 mm diameter piston rod. The built-in magnet allows direct mounting of CMSG, DMSG, or EMSG sensors on the tie-rod barrel for non-contact position feedback. The body length A is 233 mm and the adjustable air cushion is 21 mm, providing smooth deceleration at both ends of the 185 mm total stroke.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X25X160S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X25X160S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø32 mm |
| Stroke 1 / Stroke 2 | 25 / 160 mm |
| Total travel | 185 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) | 160 mm |
| P3 (both extended) | 185 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 SCT32X25X160S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm (SCT range 32–100). |
| ×25 | Stroke 1 (section 1) in mm. |
| ×160 | 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 SCT32X25X160S Is Used
Two-Stage Part Diverting
Uses the 25 mm stop for a partial gate opening and the 160 mm stop for a full divert, routing parts to three separate lanes from one conveyor junction.
Sequential Clamping
Applies a light 25 mm pre-clamp stroke followed by a full 160 mm power clamping stroke, protecting delicate workpieces before high-force holding.
Dual-Depth Pressing
Executes a shallow 25 mm press for an initial forming operation, then advances to the 160 mm position for a deeper secondary form in the same cycle.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X25X160S the Right Cylinder?
This 4-position tandem cylinder replaces setups that would otherwise need two separate 32 mm bore cylinders and external hard stops to achieve the same 25 mm and 160 mm stroke sequence. The SCT32X25X160S simplifies the machine layout, reduces plumbing connections, and guarantees the positional relationship between the two strokes. If higher force is needed, stepping up to the 40 mm bore provides 628 N of push per section at 0.5 MPa. For a drop-in replacement, match the 32 mm bore, both the 25 mm and 160 mm section strokes, PT port thread, basic mounting, and the -S magnet option. With the 160 mm section stroke, ensure the rod is guided if significant side loads are present to prevent bending of the 12 mm rod.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 25 + 160 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 SCT32X25X160S FAQ
It provides four discrete mechanical stops: 0 mm (fully retracted), 25 mm, 160 mm, and the combined total travel of 185 mm. The positions are selected by pressurizing either the first section, the second section, or both simultaneously.
Yes, it is designed to replace two separate cylinders that produce a 25 mm and a 160 mm stroke in sequence. The replacement must match the 32 mm bore, both stroke lengths, PT ports, basic mounting, and the -S magnet option to ensure sensor compatibility.
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