Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X20X125S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X20X125S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 20mm and 125mm give 4 controllable stop positions across a 145mm total travel, with a Ø32mm bore, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Stroke 120 mm
- Stroke 2125 mm
- Total travel145 mm
- Positions4 stops
- Port sizePT1/8
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X20X125S
The SCT32X20X125S is a tandem multi-position cylinder that provides four fixed rod positions: 0 mm (fully retracted), 20 mm, 125 mm, and the total travel of 145 mm. Each piston section delivers a push force of 402 N at 0.5 MPa, making it suitable for light-duty sorting and diverting tasks where two intermediate stops are needed.
This model includes a built-in magnet, allowing direct mounting of CMSG, DMSG, or EMSG sensors on the 32 mm bore tie-rod body. The 12 mm diameter rod and M10x1.25 rod thread handle precise positioning, while the 21 mm adjustable air cushion at each end decelerates the load smoothly across the 30-800 mm/s speed range.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X20X125S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X20X125S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø32 mm |
| Stroke 1 / Stroke 2 | 20 / 125 mm |
| Total travel | 145 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) | 20 mm |
| P2 (section 2) | 125 mm |
| P3 (both extended) | 145 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 SCT32X20X125S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm (SCT range 32–100). |
| ×20 | Stroke 1 (section 1) in mm. |
| ×125 | 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 SCT32X20X125S Is Used
Two-Way Part Diverting
Uses the 20 mm and 125 mm extended positions to guide parts down two different conveyor lanes, controlled by pressurizing either the front or rear piston section.
Multi-Step Feeding
Advances a workpiece in two increments—first a short 20 mm push for registration, then a full 145 mm stroke to transfer it to the next station.
Two-Depth Press Insertion
Installs a component to a partial depth of 20 mm for pre-assembly, then completes the press to the final 145 mm position, all with one compact cylinder.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X20X125S the Right Cylinder?
Choose the SCT32X20X125S when your application requires two distinct extended positions without the complexity of two separate cylinders and external hard stops. The four-position capability (0, 20, 125, 145 mm) simplifies pneumatic circuits for multi-step feeding or gate control. If higher force is needed, consider stepping up to the SCT40 bore, which provides 628 N of push per section at the same 0.5 MPa pressure.
For a direct replacement, match the 32 mm bore, both stroke lengths (20 mm and 125 mm), the PT port thread, and the built-in magnet (-S suffix). The SCT uses a basic mount by default, but FA, FB, CA, CB, or LB mounting brackets can be added if the original cylinder had them.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 20 + 125 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 SCT32X20X125S FAQ
It provides four discrete mechanical stops: 0 mm (fully retracted), 20 mm, 125 mm, and the total travel of 145 mm. The positions are achieved by pressurizing the front section, the rear section, or both sections simultaneously.
Yes, it can replace a setup using two individual cylinders and external stops to achieve two different extended positions. Ensure the replacement matches the 32 mm bore, the exact 20 mm and 125 mm strokes, the PT port thread, and the integrated magnet sensor option.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC SCT Multi-Position Cylinders
Request a Quote for Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X20X125S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.