Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X75X40S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X75X40S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 75mm and 40mm give 4 controllable stop positions across a 115mm total travel, with a Ø40mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ40 mm
- Stroke 175 mm
- Stroke 240 mm
- Total travel115 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X75X40S
The SCT40X75X40S is a tandem multi-position cylinder that delivers four fixed rod positions—0 mm, 40 mm, 75 mm, and the combined 115 mm total travel—by pressurising its two piston sections independently. Each 40 mm bore section generates 628 N of push force at 0.5 MPa, rising to 1130 N at the maximum operating pressure of 0.9 MPa, making it suitable for sorting gates and multi-stop feeding mechanisms.
This model includes a built-in magnet (-S suffix), allowing CMSG, DMSG, or EMSG sensors to be clamped directly onto the tie-rod barrel for non-contact position sensing. The cylinder uses a 16 mm diameter rod with an M12x1.25 thread, PT1/4 ports, and a 21 mm adjustable air cushion at each end to manage end-of-stroke deceleration. The body length A(SCT) is 235 mm plus the combined stroke length.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X75X40S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X75X40S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke 1 / Stroke 2 | 75 / 40 mm |
| Total travel | 115 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) | 75 mm |
| P2 (section 2) | 40 mm |
| P3 (both extended) | 115 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 SCT40X75X40S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 40 | Bore size in mm (SCT range 32–100). |
| ×75 | Stroke 1 (section 1) in mm. |
| ×40 | 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 SCT40X75X40S Is Used
Two-Stage Diverter Gate
Uses the 40 mm and 75 mm stops to route packages to two separate conveyor lanes, with the full 115 mm extension providing a third bypass path.
Multi-Depth Pressing
Provides two distinct pressing depths at 40 mm and 75 mm for assembling components with different insertion forces, returning to 0 mm for part loading.
Sequential Part Feeding
Advances a workpiece through three stations by moving to the 40 mm, 75 mm, and 115 mm positions, with sensor confirmation at each stop via the integrated magnet.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X75X40S the Right Cylinder?
Select the SCT40X75X40S when your application needs four discrete mechanical stops without the complexity of two separate cylinders and external hard stops. If the 628 N push force at 0.5 MPa is insufficient, stepping up to a 50 mm bore SCT provides 982 N per section. For a direct replacement, match the 40 mm bore, both strokes of 75 mm and 40 mm, the PT port thread, and the built-in magnet; the basic mounting configuration means no additional brackets are included, so order FA, FB, CA, CB, or LB kits separately if panel or pivot mounting is required.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 75 + 40 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 SCT40X75X40S FAQ
It provides four discrete mechanical stop positions: fully retracted (0 mm), the first section extended (40 mm), the second section extended (75 mm), and both sections extended for the total travel of 115 mm. The stops are fixed by the two stroke lengths and are not infinitely adjustable.
No, like all standard pneumatic cylinders, the SCT40X75X40S will drift or drop if pressure is exhausted or lost. The air cushion does not act as a lock. If a load must be held at the 40 mm or 75 mm position without live pressure, you must add an external rod brake, a mechanical lock, or a pilot-operated check valve in the circuit.
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 SCT40X75X40S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.