Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X60X20
The AirTAC Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X60X20 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 60mm and 20mm give 4 controllable stop positions across a 80mm total travel, with a Ø100mm bore, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Stroke 160 mm
- Stroke 220 mm
- Total travel80 mm
- Positions4 stops
- Port sizePT1/2
About the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X60X20
The SCT100X60X20 is a double-acting tandem cylinder that delivers four fixed rod positions from two independent piston sections on a common 25 mm rod. With 60 mm and 20 mm strokes, the reachable stops are 0 mm (retracted), 60 mm, 20 mm, and the full 80 mm total travel. Each 100 mm bore section generates 3927 N of push force at 0.5 MPa, rising to 7068 N at the 0.9 MPa maximum operating pressure.
This model uses PT1/2 ports and a standard TPU seal for a -20 to +70 °C working range. The tie-rod body measures 308 mm in length A(SCT), and the 29 mm air cushion at each end provides smooth deceleration. It is a genuine AirTAC multi-position solution for applications requiring a short secondary position and a longer primary advance.
Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X60X20 Technical Specifications
| Model | Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X60X20 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø100 mm |
| Stroke 1 / Stroke 2 | 60 / 20 mm |
| Total travel | 80 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) | 60 mm |
| P2 (section 2) | 20 mm |
| P3 (both extended) | 80 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 SCT100X60X20
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm (SCT range 32–100). |
| ×60 | Stroke 1 (section 1) in mm. |
| ×20 | 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 SCT100X60X20 Is Used
Two-Stage Clamping
Extend to 60 mm for a low-force pre-clamp, then retract slightly to the 20 mm position for a secondary high-force grip, using the full 7068 N thrust at 0.9 MPa.
Part-Present Detection
Advance to 20 mm to verify a component is seated, then continue to 80 mm total travel for final insertion, all from one compact tandem unit.
Dual-Depth Pressing
Use the 60 mm stroke for a primary forming operation and the 20 mm position for a precise coining or staking step, eliminating the need for a second press station.
Is the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X60X20 the Right Cylinder?
Choose the SCT100X60X20 when a single actuator must sequence between two extended positions without the complexity of two separate cylinders and external hard stops. The 60 mm and 20 mm strokes create four distinct stopping points, ideal for two-step feeding or part-present detection routines. If the 3927 N push force per section at 0.5 MPa exceeds your requirement, stepping down to an 80 mm bore reduces the per-section push to 2513 N while keeping the same multi-position logic. For direct replacement, match the 100 mm bore, both the 60 mm and 20 mm strokes, PT port thread, and basic mounting style.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 60 + 20 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 SCT100X60X20 FAQ
It provides four discrete mechanical stops: 0 mm (fully retracted), 60 mm (section one extended), 20 mm (section two extended), and 80 mm (both sections extended for total travel).
Yes, in sequencing applications. The SCT100X60X20 combines two strokes on one rod line, saving space and eliminating the need to synchronize two separate actuators. Ensure the replacement matches the 100 mm bore, 60 mm and 20 mm strokes, and PT thread.
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