Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X150X250S
The AirTAC Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X150X250S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 150mm and 250mm give 4 controllable stop positions across a 400mm total travel, with a Ø100mm bore, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Stroke 1150 mm
- Stroke 2250 mm
- Total travel400 mm
- Positions4 stops
- Port sizePT1/2
About the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X150X250S
The SCT100X150X250S is a double-acting multi-position tandem cylinder that provides four discrete rod stops: 0 mm, 150 mm, 250 mm, and the full 400 mm extended position. Each 100 mm bore section generates a powerful 3927 N of push force at 0.5 MPa, scaling up to 7068 N at the 0.9 MPa maximum operating pressure, driven through a rigid 25 mm diameter piston rod.
This model includes an integrated magnetic piston ring, designated by the -S suffix, allowing direct mounting of CMSG or DMSG solid-state sensors along the tie-rod barrel for non-contact position feedback. The cylinder body has a length of 308 mm and uses PT1/2 ports with M20x1.5 rod threads, making it a robust, field-serviceable unit for demanding multi-stop linear tasks.
Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X150X250S Technical Specifications
| Model | Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X150X250S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø100 mm |
| Stroke 1 / Stroke 2 | 150 / 250 mm |
| Total travel | 400 mm |
| Stop positions | 4 positions |
| Acting type | Double acting (tandem, multi-position) |
| Port size | PT1/2 |
| Rod thread | M20×1.5 |
| 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, 29 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) | 250 mm |
| P3 (both extended) | 400 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 (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 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 SCT80~100 Multi-Position Tandem Cylinder SCT100X150X250S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm (SCT range 32–100). |
| ×150 | Stroke 1 (section 1) in mm. |
| ×250 | 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 SCT80~100 Multi-Position Tandem Cylinder SCT100X150X250S Is Used
4-Way Diverter Gates
Operates a single gate to four distinct chute positions (closed, partial open A, partial open B, full open) using the 0, 150, 250, and 400 mm rod stops, simplifying conveyor routing logic.
Two-Depth Pressing
Provides two controlled pressing depths in one cycle. The 150 mm stroke positions a pre-form tool, while the combined 400 mm stroke delivers the final compaction force, ideal for layered material consolidation.
Multi-Stop Pallet Handling
Positions a stop pin at three different heights plus retracted. This allows a single lane to sort pallets by height or to stage them at different vertical levels for robotic pick-and-place.
Is the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X150X250S the Right Cylinder?
Choose the SCT100X150X250S when a single actuator must deliver material to four distinct positions, such as a diverter chute with a bypass lane or a two-depth pressing station. The tandem design eliminates the need to synchronize two separate cylinders and their external stop hardware, reducing plumbing and footprint. If your force requirement is lower, the 80 mm bore SCT series provides 2513 N of push per section at 0.5 MPa, while still offering the same multi-position logic.
For a direct replacement, match the 100 mm bore, the 150 mm and 250 mm section strokes, the PT port thread, and the built-in magnet. Since the 250 mm section stroke is substantial, ensure the guide system can handle the bending moment on the 25 mm rod to prevent side-load wear, especially if the load is not perfectly aligned with the cylinder axis.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 150 + 250 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 SCT80~100 Multi-Position Tandem Cylinder SCT100X150X250S FAQ
It provides four discrete mechanical stops: fully retracted (0 mm), first section extended (150 mm), second section extended (250 mm), and both sections extended for total travel (400 mm). The positions are achieved by pressurizing the cylinder sections individually or together.
Yes. The -S suffix equips the piston with a magnetic ring, enabling CMSG or DMSG sensors mounted on the tie-rods to detect all four discrete positions. This provides reliable, non-contact confirmation of each stop for your control system.
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