Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X80X150S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X80X150S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 80mm and 150mm give 4 controllable stop positions across a 230mm total travel, with a Ø40mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ40 mm
- Stroke 180 mm
- Stroke 2150 mm
- Total travel230 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X80X150S
The SCT40X80X150S is a double-acting multi-position cylinder that delivers four distinct rod positions: 0 mm (fully retracted), 80 mm, 150 mm, and a total extended length of 230 mm by pressurizing its two piston sections independently or together. With a 16 mm diameter rod and PT1/4 ports, it provides a per-section push force of 628 N at 0.5 MPa, scaling to 1130 N at 0.9 MPa.
A built-in magnet is integrated along the 40 mm bore barrel, allowing direct mounting of CMSG, DMSG, or EMSG sensors to confirm each stop position without external brackets. The tie-rod construction and 21 mm air cushion at each end cap ensure reliable deceleration across the 30–800 mm/s speed range.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X80X150S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X80X150S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke 1 / Stroke 2 | 80 / 150 mm |
| Total travel | 230 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) | 80 mm |
| P2 (section 2) | 150 mm |
| P3 (both extended) | 230 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 SCT40X80X150S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 40 | Bore size in mm (SCT range 32–100). |
| ×80 | Stroke 1 (section 1) in mm. |
| ×150 | 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 SCT40X80X150S Is Used
Two-Stage Part Diverting
Uses the 80 mm and 230 mm positions to route components down separate chutes on a conveyor, with magnetic sensors confirming the gate is clear at each stop.
Multi-Depth Pressing
Provides a light touch at 80 mm stroke for pre-forming and full insertion force at 230 mm total travel, with the 150 mm stop acting as an intermediate quality-check position.
Sequential Part Feeding
Advances a pusher bar to three different lengths to stage parts of varying sizes into a packaging machine, using the magnet for end-of-stroke verification.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X80X150S the Right Cylinder?
Choose the SCT40X80X150S when an application needs four fixed mechanical stops without the complexity of two separate cylinders and external hard stops. If higher thrust is required, stepping up to the 50 mm bore provides 982 N of push force per section at 0.5 MPa. For a direct replacement, match the 40 mm bore, both the 80 mm and 150 mm strokes, PT port thread, and the -S magnet option. A basic mount is fitted as standard, but FA or LB brackets can be added if panel or foot mounting is preferred.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 80 + 150 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 SCT40X80X150S FAQ
It provides four discrete mechanical stops: 0 mm (retracted), 80 mm (first section extended), 150 mm (second section extended), and 230 mm (both sections extended). These are fixed by the two stroke lengths and cannot be adjusted without changing the cylinder.
Yes, if the existing setup uses two separate 40 mm bore cylinders with 80 mm and 150 mm strokes. The SCT combines them into one tandem unit on a common rod line. Ensure the port size (PT1/4), mounting style, and the -S magnet option match your sensor requirements.
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