Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X250X50S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X250X50S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 250mm and 50mm give 4 controllable stop positions across a 300mm total travel, with a Ø40mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ40 mm
- Stroke 1250 mm
- Stroke 250 mm
- Total travel300 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X250X50S
The AirTAC SCT40X250X50S is a double-acting multi-position tandem cylinder that delivers four discrete rod stops: 0 mm (fully retracted), 250 mm, 50 mm, and 300 mm (total travel). Each piston section generates a push force of 628 N at 0.5 MPa, rising to 1130 N at 0.9 MPa, driven through a 16 mm diameter rod. The built-in magnet allows direct mounting of CMSG/DMSG/EMSG sensors for end-of-stroke or intermediate position confirmation.
This model uses a PT1/4 port and an M12x1.25 rod thread, with a 21 mm adjustable air cushion in each section for smooth deceleration. The body length A(SCT) is 235 mm plus strokes, making it a compact solution for sequencing tasks. It is a genuine AirTAC tie-rod cylinder, not an ISO 15552 profile, so dimensional interchangeability is limited to identical AirTAC SCT configurations.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X250X50S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X250X50S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke 1 / Stroke 2 | 250 / 50 mm |
| Total travel | 300 mm |
| Stop positions | 4 positions |
| Acting type | Double acting (tandem, multi-position) |
| Port size | PT1/4 |
| Rod thread | M12×1.25 |
| 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) | 250 mm |
| P2 (section 2) | 50 mm |
| P3 (both extended) | 300 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 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 SCT40X250X50S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 40 | Bore size in mm (SCT range 32–100). |
| ×250 | Stroke 1 (section 1) in mm. |
| ×50 | 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 SCT40X250X50S Is Used
Two-Stage Sorting Gate
Uses the 250 mm stroke to divert large items and the 50 mm stroke for a partial gate opening, creating four distinct flow paths from a single actuator.
Multi-Depth Clamping
Provides two clamping depths (50 mm and 300 mm) for processing different part thicknesses on the same fixture, selected by pressurizing either or both cylinder sections.
Sequential Pusher Station
Acts as a multi-stop pusher on a packaging line, advancing to 50 mm for label application, 250 mm for carton forming, and 300 mm for final ejection.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X250X50S the Right Cylinder?
Select the SCT40X250X50S when your process needs four fixed mechanical stops without the complexity of servo control or multiple single cylinders with external hard stops. The 250 mm and 50 mm stroke combination suits operations where a long rapid-approach stroke is followed by a short, precise secondary movement. If you need higher force, consider stepping up to the 50 mm bore SCT50 series, which provides 982 N of push per section at 0.5 MPa. For a drop-in replacement, match the 40 mm bore, both 250 mm and 50 mm strokes, PT port thread, basic mounting, and the -S magnet option. With a 250 mm section stroke, ensure the rod is adequately guided if significant side loads are present to prevent bending.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 250 + 50 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 SCT40X250X50S FAQ
It provides four distinct mechanical positions: 0 mm (fully retracted), 250 mm (section 1 extended), 50 mm (section 2 extended), and 300 mm (both sections extended). The positions are fixed by the two stroke lengths and are selected by pressurizing the appropriate cylinder sections.
Each of the two piston sections delivers 628 N of push force and 528 N of pull force when operated at 0.5 MPa. The force does not double when both sections are pressurized; each section independently contributes its rated force to the rod assembly.
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 SCT40X250X50S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.