Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X110X80S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X110X80S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 110mm and 80mm give 4 controllable stop positions across a 190mm total travel, with a Ø40mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ40 mm
- Stroke 1110 mm
- Stroke 280 mm
- Total travel190 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X110X80S
The SCT40X110X80S creates four fixed rod positions from two independent piston sections on a common 16 mm rod. With a 110 mm front stroke and an 80 mm rear stroke, the rod can be precisely located at 0 mm (fully retracted), 80 mm, 110 mm, or the full 190 mm total travel. Each section generates 628 N of push force at 0.5 MPa, rising to 1130 N at the 0.9 MPa maximum operating pressure.
This model includes a built-in magnet, allowing CMSG, DMSG, or EMSG solid-state sensors to clamp directly onto the tie-rod barrel for non-contact position feedback at every stop. The body length A is 235 mm, and the PT1/4 ports feature a 21 mm adjustable air cushion on each section, giving smooth deceleration without requiring external shock absorbers in multi-stop sequences.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X110X80S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X110X80S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke 1 / Stroke 2 | 110 / 80 mm |
| Total travel | 190 mm |
| Stop positions | 4 positions |
| Acting type | Double acting (tandem, multi-position) |
| Port size | PT1/4 |
| Rod thread | M12×1.25 |
| 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, 21 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) | 110 mm |
| P2 (section 2) | 80 mm |
| P3 (both extended) | 190 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 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 SCT32-63 Multi-Position Tandem Air Cylinder SCT40X110X80S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 40 | Bore size in mm (SCT range 32–100). |
| ×110 | Stroke 1 (section 1) in mm. |
| ×80 | 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 SCT32-63 Multi-Position Tandem Air Cylinder SCT40X110X80S Is Used
Two-Stage Sorting Gate
Divert packages to three separate conveyor lanes by actuating one section for the first divert, the second for an intermediate position, and both for a third lane, using the four discrete rod positions.
Multi-Depth Pressing
Control a press platen to two distinct working depths. The 80 mm stroke sets the first depth, the 110 mm stroke sets a deeper second depth, and the combined 190 mm stroke provides full retraction for part loading.
Sequential Part Feeding
Advance components in a stepped sequence on an assembly line. The 80 mm and 110 mm strokes provide two precise feed increments before the cylinder resets, ideal for indexing stations.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X110X80S the Right Cylinder?
Choose the SCT when a process needs more than two fixed end-of-stroke positions without the complexity of servo control. This 4-position unit replaces two separate cylinders and external hard stops with a single tandem assembly, simplifying mounting and air plumbing. If the 628 N push force per section is marginal for the application, stepping up to the 50 mm bore SCT50 provides 982 N per section at the same 0.5 MPa pressure. For a direct replacement, match the 40 mm bore, the exact 110 mm and 80 mm strokes, the PT thread, and the built-in magnet (-S suffix). The basic mounting configuration allows the cylinder body to be secured with standard foot brackets or flange accessories from the SCT range.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 110 + 80 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 SCT32-63 Multi-Position Tandem Air Cylinder SCT40X110X80S FAQ
This tandem cylinder provides four discrete mechanical stops. The rod positions are 0 mm (fully retracted), 80 mm (rear section extended), 110 mm (front section extended), and 190 mm (both sections extended). The stops are fixed by the two stroke lengths and are not infinitely adjustable.
Yes, that is its primary design advantage. The SCT40X110X80S consolidates two independent 40 mm bore strokes into one tie-rod body, saving mounting space and eliminating the need to align two separate cylinders. Ensure the replacement matches the 110 mm and 80 mm strokes, PT ports, and the -S magnet option if sensor feedback is required.
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