Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X50X50SLB
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X50X50SLB is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 50mm and 50mm give 3 controllable stop positions across a 100mm total travel, with a Ø50mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ50 mm
- Stroke 150 mm
- Stroke 250 mm
- Total travel100 mm
- Positions3 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X50X50SLB
This SCT50X50X50SLB tandem cylinder delivers three fixed rod positions—0 mm, 50 mm, and 100 mm total travel—by pressurizing its two 50 mm stroke sections independently or together. Each section generates about 982 N of push force at 0.5 MPa, making it a compact alternative to two separate actuators for simple two-step or three-step motions.
The built-in magnet allows direct mounting of CMSG, DMSG, or EMSG sensors on the tie-rod barrel for non-contact position feedback. It comes with LB-style axial foot mounts for rigid surface installation, uses a 20 mm diameter rod with an M16x1.5 thread, and has a 21 mm adjustable air cushion at each end to manage deceleration.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X50X50SLB Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X50X50SLB |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke 1 / Stroke 2 | 50 / 50 mm |
| Total travel | 100 mm |
| Stop positions | 3 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 (3)
| Position | Rod extension |
|---|---|
| P0 (retracted) | 0 mm |
| P1 (section 1) | 50 mm |
| P2 (both extended) | 100 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 SCT50X50X50SLB
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm (SCT range 32–100). |
| ×50 | 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 SCT50X50X50SLB Is Used
Two-Position Sorting Gate
Diverts packages to two separate lanes by extending to 50 mm for lane one and 100 mm for lane two, all from one compact actuator.
Multi-Depth Pressing
Applies a light pre-press at the 50 mm stop and a full-force press at the 100 mm extended position in a laminating or assembly fixture.
Staged Part Feeding
Advances a workpiece in two 50 mm increments on an indexing conveyor, eliminating the need for a second cylinder and separate valve.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X50X50SLB the Right Cylinder?
Choose the SCT50X50X50SLB when a single rod line must reach two intermediate stops without the complexity of two separate cylinders and external hard stops. If you need more push force at the same pressure, the 63 mm bore version delivers 1559 N per section. For a drop-in replacement, match the 50 mm bore, both 50 mm strokes, the PT port thread, the LB foot mount, and the integrated magnet; using a basic cylinder without the magnet or a different bracket will prevent sensor mounting and alter the mounting footprint.
Multi-position checklist
- ✓ Need 3 repeatable stops?
- ✓ Section strokes 50 + 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 SCT50X50X50SLB FAQ
It provides three distinct mechanical stops: fully retracted (0 mm), the first section extended (50 mm), and both sections extended together (100 mm). Pressurizing the sections in sequence or simultaneously selects the position.
Yes, if you need sensor feedback. The SLB suffix adds a built-in magnet and LB foot mounts. The core cylinder dimensions, 50 mm bore, 50 mm strokes, and PT ports are identical, but you must account for the mounting feet and magnet in your layout.
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