Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X200X200S
The AirTAC Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X200X200S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 200mm and 200mm give 3 controllable stop positions across a 400mm total travel, with a Ø80mm bore, PT3/8 ports and adjustable end cushioning.
- BoreØ80 mm
- Stroke 1200 mm
- Stroke 2200 mm
- Total travel400 mm
- Positions3 stops
- Port sizePT3/8
About the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X200X200S
The AirTAC SCT80X200X200S is a tie-rod multi-position cylinder that delivers three fixed, repeatable rod positions: fully retracted (0 mm), mid-stroke (200 mm), and full extension (400 mm total travel). By pressurising either or both of its two 200 mm stroke sections, you get precise mechanical stops without external hard stops or complex servo controls. Each 80 mm bore section generates 2513 N of push force at 0.5 MPa, rising to 4523 N at the maximum operating pressure of 0.9 MPa.
The built-in magnet (-S suffix) allows direct mounting of CMSG, DMSG, or EMSG sensors along the tie-rod barrel for end-of-stroke or mid-position confirmation. The cylinder uses a 25 mm diameter piston rod, PT3/8 ports, and an M20x1.5 rod thread, with a body length A(SCT) of 296 mm plus strokes. Its 28 mm adjustable air cushion at each end section decelerates the load smoothly, protecting the end caps during high-speed operation up to 800 mm/s.
Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X200X200S Technical Specifications
| Model | Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X200X200S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø80 mm |
| Stroke 1 / Stroke 2 | 200 / 200 mm |
| Total travel | 400 mm |
| Stop positions | 3 positions |
| Acting type | Double acting (tandem, multi-position) |
| Port size | PT3/8 |
| 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, 28 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) | 200 mm |
| P2 (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 (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 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 SCT80X200X200S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 80 | Bore size in mm (SCT range 32–100). |
| ×200 | Stroke 1 (section 1) in mm. |
| ×200 | 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 SCT80X200X200S Is Used
3-Position Sorting Gate
Direct packages to three separate conveyor lanes by stopping the cylinder rod at 0, 200, or 400 mm, using the discrete mechanical stops for fast, repeatable diverting without position feedback tuning.
Two-Depth Pressing Station
Perform a shallow pre-press at the 200 mm mid-stroke and a full-depth press at the 400 mm total extension, ensuring consistent part insertion or forming depths in a semi-automated assembly cell.
Multi-Stop Material Stop
Act as a retractable hard stop for pallets or trays on a gravity roller conveyor, presenting three different stopping positions to accumulate or release workpieces in a sequenced material handling system.
Is the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X200X200S the Right Cylinder?
Choose this SCT model when your application needs three defined linear positions from a single, compact actuator, eliminating the complexity and plumbing of two separate cylinders with external alignment. If your force requirement is lower, the SCT63X200X200S provides 1559 N of push per section at 0.5 MPa in a smaller footprint. For a direct replacement, match the 80 mm bore, both 200 mm strokes, PT port thread, and the integrated magnet; this is a basic mount model, so no mounting bracket is included, but FA, FB, CA, CB, or LB accessories can be ordered separately. With a 200 mm stroke per section, rod bending is typically not a concern under axial loads, but always align the load to minimise side forces.
Multi-position checklist
- ✓ Need 3 repeatable stops?
- ✓ Section strokes 200 + 200 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 SCT80X200X200S FAQ
It provides three distinct mechanical stop positions because both stroke sections are equal at 200 mm. The rod positions are 0 mm (fully retracted), 200 mm (one section extended), and 400 mm (both sections extended, the total travel).
Yes, in applications requiring three fixed positions, the SCT80X200X200S replaces two individual SC80X200 cylinders and their mounting hardware. It uses a single rod line and body, guaranteeing inherent alignment between the two strokes. Ensure you match the 80 mm bore, PT3/8 ports, and the magnet option if your existing setup uses sensors.
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