
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X65X15SN is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 65mm and 15mm give 4 controllable stop positions across a 80mm total travel, with a Ø40mm bore, PT1/4 ports and adjustable end cushioning.
The SCT40X65X15SN is a tandem multi-position cylinder that provides four fixed rod positions: 0 mm (fully retracted), 15 mm, 65 mm, and the combined total travel of 80 mm. This specific model is configured with NBR seals and an integrated magnet, allowing direct mounting of CMSG or DMSG sensors for electronic position feedback. Each piston section generates a push force of 628 N at 0.5 MPa, making it suitable for light sorting and diverting tasks.
Built on a durable tie-rod body with a length of 235 mm and a 16 mm diameter rod, the cylinder uses an M12x1.25 rod thread for attachment. The 21 mm adjustable air cushion at each end effectively decelerates the load, ensuring quiet operation across the 30-800 mm/s speed range. With PT1/4 ports, it integrates easily into standard pneumatic circuits without requiring complex flow controls.
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X65X15SN |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke 1 / Stroke 2 | 65 / 15 mm |
| Total travel | 80 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.
| Position | Rod extension |
|---|---|
| P0 (retracted) | 0 mm |
| P1 (section 1) | 65 mm |
| P2 (section 2) | 15 mm |
| P3 (both extended) | 80 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.
| 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.
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 40 | Bore size in mm (SCT range 32–100). |
| ×65 | Stroke 1 (section 1) in mm. |
| ×15 | 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.
Achieves a shallow 15 mm pre-press position and a full 65 mm forming depth, ideal for progressive assembly or light staking operations.
Directs parts to four separate lanes on a conveyor using the 0, 15, 65, and 80 mm rod positions to actuate different gate mechanisms.
Advances material in precise 15 mm and 65 mm increments, allowing a secondary operation at the 80 mm total extension point.
Choose the SCT40X65X15SN when your application requires four distinct mechanical stops from a single compact unit, rather than installing two separate cylinders with external hard stops. If the 628 N push force per section is insufficient, stepping up to the 50 mm bore provides 982 N at the same pressure. For replacement, ensure the new unit matches the 40 mm bore, both the 65 mm and 15 mm strokes, PT port threads, and the -S magnet option to retain sensor compatibility.
Multi-position checklist
The cylinder provides four discrete mechanical stops: 0 mm (home), 15 mm (stroke 2), 65 mm (stroke 1), and 80 mm (both sections extended).
It combines two strokes on a single common rod, guaranteeing fixed, repeatable positions without the alignment complexity and space requirements of mounting two independent actuators back-to-back.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.