Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X20X110S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X20X110S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 20mm and 110mm give 4 controllable stop positions across a 130mm total travel, with a Ø40mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ40 mm
- Stroke 120 mm
- Stroke 2110 mm
- Total travel130 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X20X110S
The SCT40X20X110S creates four distinct rod positions from two strokes on a single piston line, giving you 0, 20, 110, and 130 mm of travel. Each 40 mm bore section delivers 628 N of push force at 0.5 MPa, driven by a 16 mm diameter rod, making it a compact solution for sequencing two end-of-arm positions without extra actuators.
A built-in magnet barrel lets you clamp CMSG or DMSG sensors directly onto the tie-rod body for non-contact position feedback at every stop. The 21 mm air cushion at each end absorbs energy quietly, and the PT1/4 ports keep plumbing simple in tight multi-axis assemblies.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X20X110S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X20X110S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke 1 / Stroke 2 | 20 / 110 mm |
| Total travel | 130 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) | 20 mm |
| P2 (section 2) | 110 mm |
| P3 (both extended) | 130 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 SCT40X20X110S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 40 | Bore size in mm (SCT range 32–100). |
| ×20 | Stroke 1 (section 1) in mm. |
| ×110 | 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 SCT40X20X110S Is Used
Two-Stage Part Insertion
Extends 20 mm to clear a fixture, then drives the final 110 mm to press a bushing into a housing with a single cylinder.
Dual-Stop Gate Diverter
Uses the 20 mm and 130 mm positions to route packages to two separate lanes from one infeed conveyor.
Clamp & Transfer
Short 20 mm stroke clamps a delicate part with low force, then the full 130 mm travel transfers it to the next station.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X20X110S the Right Cylinder?
Choose this tandem cylinder when you need to replace a pair of individual actuators with one unit that guarantees a fixed sequence of four positions. The 20 mm and 110 mm strokes provide a short advance and a longer secondary feed, ideal for a pick-and-place that first extends to a grip point, then pushes the part home. If your load requires more thrust, stepping up to the 50 mm bore provides 982 N of push per section at the same pressure.
For a direct replacement, match the 40 mm bore, the 20 mm and 110 mm strokes, the PT1/4 ports, and the integrated magnet. The SCT uses a basic mount as standard, but FA or LB brackets can be added if your frame requires flange or foot mounting.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 20 + 110 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 SCT40X20X110S FAQ
The rod stops at four discrete locations: 0 mm (fully retracted), 20 mm, 110 mm, and 130 mm (full extension). You select the position by pressurizing the first section, the second section, or both simultaneously.
Yes, the built-in magnet is designed for AirTAC CMSG, DMSG, or EMSG solid-state sensors. They clamp directly onto the tie-rod barrel to detect each of the four positions without external brackets.
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Standard models usually ship in 3-4 days.
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