Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X60X65
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X60X65 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 60mm and 65mm give 4 controllable stop positions across a 125mm total travel, with a Ø50mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ50 mm
- Stroke 160 mm
- Stroke 265 mm
- Total travel125 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X60X65
The SCT50X60X65 is a double-acting tandem cylinder that provides four fixed rod positions—0 mm, 60 mm, 65 mm, and the combined travel of 125 mm—by pressurising its two piston sections independently or together. With a 50 mm bore and a 20 mm diameter rod, each section generates 982 N of push force at 0.5 MPa, scaling up to 1767 N at the maximum operating pressure of 0.9 MPa.
This model uses a tie-rod construction with a body length (A dimension) of 243 mm and an adjustable pneumatic cushion of 21 mm at each end to manage deceleration. Standard PT1/4 ports and an M16x1.5 rod thread are fitted, and the cylinder operates on filtered air within a -20 to +70 °C range using its default TPU seals.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X60X65 Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X60X65 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke 1 / Stroke 2 | 60 / 65 mm |
| Total travel | 125 mm |
| Stop positions | 4 positions |
| Acting type | Double acting (tandem, multi-position) |
| Port size | PT1/4 |
| Rod thread | M16×1.5 |
| 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) | 60 mm |
| P2 (section 2) | 65 mm |
| P3 (both extended) | 125 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 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 SCT50X60X65
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm (SCT range 32–100). |
| ×60 | Stroke 1 (section 1) in mm. |
| ×65 | 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 SCT50X60X65 Is Used
Two-Stage Sorting Gate
Actuate a diverter gate to a partial-open position at 60 mm for one product lane, then extend fully to 125 mm to redirect items to a second lane, achieving three-lane sorting from a single compact cylinder.
Multi-Depth Pressing
Control a press platen to two distinct working depths. The first piston section stops the tool at a 60 mm pre-press position, and the second section advances it to the final 125 mm depth for full forming pressure.
Sequential Part Feeding
Use the 60 mm stroke to push a component into a staging area, and the 65 mm stroke to transfer it into the next fixture. The 125 mm total travel clears the part completely for reliable, timed material handling.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X60X65 the Right Cylinder?
Choose the SCT50X60X65 when your application needs four distinct stopping points without the complexity of servo controls or the bulk of two separate cylinders with external hard stops. The unequal strokes give you a short 60 mm advance and a slightly longer 65 mm secondary extension, ideal for two-step positioning. If your force requirement is lower, the 40 mm bore SCT series provides 628 N of push per section at 0.5 MPa, while stepping up to the 63 mm bore increases this to 1559 N. For a direct replacement, match the 50 mm bore, both the 60 mm and 65 mm strokes, PT port thread, and basic mounting configuration exactly.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 60 + 65 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 SCT50X60X65 FAQ
This tandem cylinder provides four discrete stop positions: fully retracted (0 mm), the first section extended (60 mm), the second section extended (65 mm), and both sections extended for the total travel (125 mm). The positions are fixed by the two stroke lengths and are not infinitely adjustable.
Yes, in applications requiring two fixed extension points. The SCT50X60X65 integrates two piston sections on one rod line, saving space and eliminating the need to synchronise two separate cylinders and their external stops. A replacement must match the 50 mm bore, both the 60 mm and 65 mm strokes, and the PT port thread.
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