Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X150X15S
The AirTAC Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X150X15S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 150mm and 15mm give 4 controllable stop positions across a 165mm total travel, with a Ø100mm bore, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Stroke 1150 mm
- Stroke 215 mm
- Total travel165 mm
- Positions4 stops
- Port sizePT1/2
About the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X150X15S
The SCT100X150X15S is a double-acting multi-position tandem cylinder that delivers four fixed rod positions: 0 mm (fully retracted), 15 mm, 150 mm, and the combined total travel of 165 mm. With a 100 mm bore and a robust 25 mm diameter piston rod, each section generates a push force of 3927 N at 0.5 MPa, scaling up to 7068 N at the maximum operating pressure of 0.9 MPa.
This model includes a built-in magnet (-S suffix), enabling direct mounting of CMSG, DMSG, or EMSG reed and solid-state sensors along the tie-rod barrel for contactless position feedback. The cylinder body has an A(SCT) length of 308 mm and uses a 29 mm adjustable air cushion to decelerate the mass smoothly at both ends of the total stroke.
Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X150X15S Technical Specifications
| Model | Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X150X15S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø100 mm |
| Stroke 1 / Stroke 2 | 150 / 15 mm |
| Total travel | 165 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) | 15 mm |
| P3 (both extended) | 165 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 SCT100X150X15S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm (SCT range 32–100). |
| ×150 | Stroke 1 (section 1) in mm. |
| ×15 | 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 SCT100X150X15S Is Used
Two-Way Part Sorting
Extend to 150 mm to divert a part to a primary chute, or stop at the 15 mm position for a secondary reject lane, all from a single compact actuator with sensor confirmation.
Dual-Depth Clamping Fixture
Use the 15 mm stroke for a light preliminary clamp to position a delicate workpiece, then advance to the full 150 mm for high-force holding during machining.
Two-Stage Adhesive Dispensing
Move a dispense head to the 15 mm position for a precise dot of adhesive, then advance to 150 mm to clear the work area, with the magnet confirming each discrete stop.
Is the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X150X15S the Right Cylinder?
Choose the SCT100X150X15S when your application requires two distinct extended positions and a short intermediate stop without the complexity of two separate actuators and external hard stops. The 150 mm and 15 mm strokes provide a long primary advance and a precise short secondary position. If the per-section force of 3927 N at 0.5 MPa is excessive, stepping down to an 80 mm bore reduces the push force to 2513 N per section.
For direct replacement, match the 100 mm bore, both strokes (150 mm and 15 mm), PT port thread, basic mounting, and the integrated magnet (-S). Given the 150 mm stroke on the primary section, ensure the guided load is aligned with the rod axis to prevent side-loading and premature rod bearing wear.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 150 + 15 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 SCT100X150X15S FAQ
Because the two section strokes are different (150 mm and 15 mm), this cylinder provides four distinct, fixed mechanical stop positions: 0 mm (retracted), 15 mm, 150 mm, and the total combined travel of 165 mm. It is not a servo and cannot stop at arbitrary intermediate points.
Yes, that is its primary design purpose. It replaces a setup with two separate actuators and external stops for a two-position sequence, saving space and simplifying the pneumatic circuit. A direct replacement must match the 100 mm bore, the 150 mm and 15 mm strokes, the PT port, and the integrated magnet.
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