Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X100X50S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X100X50S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 100mm and 50mm give 4 controllable stop positions across a 150mm total travel, with a Ø50mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ50 mm
- Stroke 1100 mm
- Stroke 250 mm
- Total travel150 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X100X50S
The SCT50X100X50S tandem cylinder delivers four fixed rod positions—0 mm, 50 mm, 100 mm, and 150 mm total travel—from a single compact assembly. Each 50 mm bore section provides 982 N of push force at 0.5 MPa, driven through a 20 mm diameter piston rod with PT1/4 ports.
A built-in magnet is integrated into the piston, allowing CMSG, DMSG, or EMSG sensors to clamp directly onto the tie-rod barrel for non-contact position sensing at every stop. The cylinder body has an A-length of 243 mm and uses an adjustable air cushion (21 mm) to decelerate the load smoothly at both ends of the total stroke.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X100X50S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X100X50S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke 1 / Stroke 2 | 100 / 50 mm |
| Total travel | 150 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) | 100 mm |
| P2 (section 2) | 50 mm |
| P3 (both extended) | 150 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 SCT50X100X50S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm (SCT range 32–100). |
| ×100 | 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 SCT50X100X50S Is Used
Two-Stage Diverter Gate
Operates a product gate with a partial-open position at 50 mm for slow-speed lanes and a full-open position at 150 mm for high-throughput lanes, with sensors confirming each gate state.
Multi-Depth Pressing
Provides a light-contact pre-press stop at 100 mm and a final pressing depth at 150 mm, with the intermediate 50 mm position used for part ejection clearance.
Sequential Part Staging
Advances a workpiece through three distinct positions for drilling, tapping, and unloading, using the four rod stops to index the fixture without a servo axis.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X100X50S the Right Cylinder?
Choose the SCT50X100X50S when your sequence needs four distinct mechanical stops without the complexity of two separate cylinders and external hard stops. The 50/100 mm stroke combination is ideal for two-step feeding or sorting where the first advance is longer than the second. If your force requirement is lower, stepping down to a 40 mm bore reduces per-section push to 628 N at 0.5 MPa; for heavier tooling, the 63 mm bore delivers 1559 N.
For drop-in replacement, match the 50 mm bore, both strokes (100 mm and 50 mm), PT port thread, basic mounting, and the -S magnet option. With a 100 mm section stroke, ensure the rod is guided if the load applies significant side force, as the 20 mm rod can deflect under off-axis loading.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 100 + 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 SCT50X100X50S FAQ
It provides four discrete mechanical stops: 0 mm (fully retracted), 50 mm (section 2 extended), 100 mm (section 1 extended), and 150 mm (both sections extended, total travel). The positions are fixed by the two stroke lengths and are not infinitely adjustable.
Yes, the SCT50X100X50S consolidates two 50 mm bore strokes into one tandem body, eliminating the need to align two separate cylinders and external hard stops. Ensure the replacement matches the 50 mm bore, 100 mm and 50 mm strokes, PT ports, basic mounting, and the -S magnet option for sensor compatibility.
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