Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X150X500S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X150X500S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 150mm and 500mm give 4 controllable stop positions across a 650mm total travel, with a Ø63mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ63 mm
- Stroke 1150 mm
- Stroke 2500 mm
- Total travel650 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X150X500S
The SCT63X150X500S is a double-acting multi-position cylinder that delivers four fixed rod positions: 0 mm (fully retracted), 150 mm, 500 mm, and the combined 650 mm total travel. Each 63 mm bore section generates a push force of 1559 N at 0.5 MPa, rising to 2805 N at 0.9 MPa, making it a robust choice for material handling gates that require two distinct extended stops.
This model features a built-in magnet, allowing direct mounting of CMSG, DMSG, or EMSG sensors along the tie-rod barrel for contactless position feedback. The 20 mm diameter piston rod and 28 mm adjustable air cushion at each end manage energy absorption effectively across the 30-800 mm/s speed range. The body length A(SCT) is 249 mm plus the 650 mm total stroke.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X150X500S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X150X500S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø63 mm |
| Stroke 1 / Stroke 2 | 150 / 500 mm |
| Total travel | 650 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, 28 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) | 150 mm |
| P2 (section 2) | 500 mm |
| P3 (both extended) | 650 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 (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 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 SCT63X150X500S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 63 | Bore size in mm (SCT range 32–100). |
| ×150 | Stroke 1 (section 1) in mm. |
| ×500 | 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 SCT63X150X500S Is Used
Two-Stage Diverter Gate
Uses the 150 mm and 500 mm stops to route packages to two separate conveyor lanes from a single infeed point, simplifying line design.
Dual-Depth Press Feed
Advances material to a shallow stop at 150 mm for a pre-forming operation, then extends fully to 650 mm for the final cut or stamp.
Multi-Level Pallet Stop
Positions a stop blade at 150 mm for small boxes and 500 mm for tall totes, controlling flow without changing tooling.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X150X500S the Right Cylinder?
Select the SCT when a single actuator must stop reliably at two different extended positions without the complexity of two separate cylinders and external hard stops. The 150 mm and 500 mm strokes create a 4-position sequence ideal for two-stage ejection or sorting. If a higher force per section is needed, stepping up to the 80 mm bore provides 2513 N push at 0.5 MPa. For a direct replacement, match the 63 mm bore, both strokes (150 mm and 500 mm), PT port thread, and the integrated magnet (-S suffix). Note that with the 500 mm stroke section extended, the long rod assembly is more susceptible to side loading; external linear guides are recommended to prevent rod bending.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 150 + 500 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 SCT63X150X500S FAQ
It provides four discrete mechanical stops: 0 mm (fully retracted), 150 mm, 500 mm, and the full combined extension of 650 mm. The positions are achieved by pressurizing the first section, the second section, or both simultaneously.
Each 63 mm bore section independently delivers a push force of 1559 N at 0.5 MPa and a pull force of 1402 N. The force does not double when both sections are pressurized; each section acts individually to move the rod to its designated stop.
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