Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X30X150S
The AirTAC Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X30X150S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 30mm and 150mm give 4 controllable stop positions across a 180mm total travel, with a Ø100mm bore, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Stroke 130 mm
- Stroke 2150 mm
- Total travel180 mm
- Positions4 stops
- Port sizePT1/2
About the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X30X150S
The SCT100X30X150S is a double-acting multi-position cylinder that delivers four distinct rod positions from two piston sections on a common rod line. With strokes of 30 mm and 150 mm, the reachable stops are 0 mm (fully retracted), 30 mm, 150 mm, and the full 180 mm total travel, giving machine designers a compact way to sequence two different advance lengths without extra actuators.
Each section uses a 25 mm diameter rod and an M20x1.5 rod-end thread, with a 29 mm adjustable air cushion at each end to manage deceleration. At the standard 0.5 MPa supply, a single actuated section produces 3927 N of push force, scaling to 7068 N at the 0.9 MPa maximum operating pressure. A built-in magnet is included on this -S variant, so CMSG, DMSG, or EMSG sensors can be clamped directly to the tie-rod barrel for non-contact position feedback.
Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X30X150S Technical Specifications
| Model | Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X30X150S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø100 mm |
| Stroke 1 / Stroke 2 | 30 / 150 mm |
| Total travel | 180 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) | 30 mm |
| P2 (section 2) | 150 mm |
| P3 (both extended) | 180 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 SCT100X30X150S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm (SCT range 32–100). |
| ×30 | Stroke 1 (section 1) in mm. |
| ×150 | 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 SCT100X30X150S Is Used
Two-Stage Clamping
A low-force 30 mm advance to gently contact a delicate workpiece, followed by a full 150 mm high-force clamping stroke, all from one cylinder body with sensor-confirmed positions.
Diverter Gate Actuation
Operates a two-position diverter gate on a conveyor line, using the 30 mm stroke for a partial open and 150 mm for full open, with magnet sensors verifying each state.
Two-Depth Pressing
Pressing a component to an intermediate 30 mm depth for one operation, then advancing to the full 150 mm depth for a second forming stage, eliminating the need for a secondary press station.
Is the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X30X150S the Right Cylinder?
This 100 mm bore tandem cylinder is the right choice when you need two different discrete advances from one compact assembly, avoiding the cost and plumbing of two separate cylinders. If the 30 mm stroke is too short for your first position, the SCT100X50X150 provides a 50 mm first stop instead. For applications needing higher force, stepping up is not possible as 100 mm is the largest SCT bore; consider whether the 3927 N push per section at 0.5 MPa meets your load requirement. When replacing an existing unit, match the bore, both strokes (30 mm and 150 mm), the PT port thread, and the -S magnet option. The basic mount means no mounting brackets are included, so you will need to source FA, FB, CA, CB, or LB hardware separately if a bracket is required.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 30 + 150 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 SCT100X30X150S FAQ
This tandem cylinder provides four discrete stop positions: 0 mm (fully retracted), 30 mm (first section extended), 150 mm (second section extended), and 180 mm (both sections extended). The stops are fixed by the two stroke lengths and are not infinitely adjustable.
Yes, in applications where the two strokes are sequenced from the same rod line. It replaces two individual cylinders and their mounting hardware with one tandem unit. For a direct replacement, ensure the bore is 100 mm, the strokes are exactly 30 mm and 150 mm, the ports are PT, and the -S magnet option is present.
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