Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X30X30
The AirTAC Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X30X30 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 30mm and 30mm give 3 controllable stop positions across a 60mm total travel, with a Ø100mm bore, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Stroke 130 mm
- Stroke 230 mm
- Total travel60 mm
- Positions3 stops
- Port sizePT1/2
About the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X30X30
The SCT100X30X30 is a double-acting tandem cylinder that provides three fixed rod positions: fully retracted (0 mm), extended by the first stroke (30 mm), and fully extended by both strokes combined (60 mm total travel). Each piston section generates 3927 N of push force at 0.5 MPa, scaling up to 7068 N at the maximum operating pressure of 0.9 MPa, making it a compact powerhouse for short-throw, high-force indexing tasks.
Built on a robust tie-rod design with a 25 mm diameter rod and PT1/2 ports, this 100 mm bore cylinder includes a 29 mm adjustable air cushion in each section for end-of-stroke deceleration. The body length A(SCT) is 308 mm, providing a rigid platform for mounting. With TPU seals, it operates reliably in standard temperatures from -20 to +70 °C.
Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X30X30 Technical Specifications
| Model | Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X30X30 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø100 mm |
| Stroke 1 / Stroke 2 | 30 / 30 mm |
| Total travel | 60 mm |
| Stop positions | 3 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 (3)
| Position | Rod extension |
|---|---|
| P0 (retracted) | 0 mm |
| P1 (section 1) | 30 mm |
| P2 (both extended) | 60 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 SCT100X30X30
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm (SCT range 32–100). |
| ×30 | Stroke 1 (section 1) in mm. |
| ×30 | 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 SCT100X30X30 Is Used
Two-Stage Clamping
Operates a welding fixture clamp with a low-force approach at the 30 mm position, followed by full clamping force when both sections are pressurized at 60 mm.
Compact Diverter Gate
Positions a small diverter chute on a conveyor to three distinct locations—neutral, first divert, and second divert—using the 0, 30, and 60 mm rod positions.
Multi-Depth Pressing
Provides two controlled pressing depths in a short-stroke assembly press, using the 30 mm stop for an insertion step and the 60 mm stop for a final seating operation.
Is the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X30X30 the Right Cylinder?
Choose the SCT100X30X30 when your application requires two distinct extended stop positions within a very short 60 mm total envelope, eliminating the complexity of two separate cylinders and external hard stops. If the force requirement is lower, stepping down to an 80 mm bore (2513 N push at 0.5 MPa per section) can reduce air consumption and physical size. For a direct replacement, match the 100 mm bore, both 30 mm section strokes, PT1/2 port thread, and basic mounting configuration. An SCT model with a built-in magnet (-S suffix) is needed for sensor feedback.
Multi-position checklist
- ✓ Need 3 repeatable stops?
- ✓ Section strokes 30 + 30 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 SCT100X30X30 FAQ
This model provides 3 distinct mechanical stop positions because both section strokes are equal (30 mm). The rod can be positioned at 0 mm (fully retracted), 30 mm (one section extended), and 60 mm (both sections extended).
Yes, the SCT100X30X30 is a direct functional replacement for two separate 100 mm bore, 30 mm stroke cylinders mounted in tandem, providing the same three discrete positions in a single, pre-aligned body. Ensure the replacement has matching PT1/2 ports and the same mounting style.
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