Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X100X100S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X100X100S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 100mm and 100mm give 3 controllable stop positions across a 200mm total travel, with a Ø40mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ40 mm
- Stroke 1100 mm
- Stroke 2100 mm
- Total travel200 mm
- Positions3 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X100X100S
The SCT40X100X100S is a tandem multi-position cylinder that delivers three precise mechanical stops along its 200 mm total travel: fully retracted (0 mm), mid-stroke (100 mm), and fully extended (200 mm). By pressurising the two 100 mm piston sections independently or together, it achieves repeatable positioning without external stops or complex controls. Each 40 mm bore section generates 628 N of push force at 0.5 MPa, with a 16 mm diameter piston rod and a compact 235 mm body length A(SCT).
This model includes a factory-installed magnet (-S suffix), allowing CMSG, DMSG, or EMSG solid-state and reed sensors to clamp directly onto the tie-rod barrel for end-of-stroke or mid-position confirmation. The standard TPU seals and PT1/4 ports suit filtered-air systems operating from -20 to +70 °C, with an adjustable air cushion in each section smoothing deceleration across the 30-800 mm/s speed range.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X100X100S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X100X100S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke 1 / Stroke 2 | 100 / 100 mm |
| Total travel | 200 mm |
| Stop positions | 3 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 (3)
| Position | Rod extension |
|---|---|
| P0 (retracted) | 0 mm |
| P1 (section 1) | 100 mm |
| P2 (both extended) | 200 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 SCT40X100X100S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 40 | Bore size in mm (SCT range 32–100). |
| ×100 | Stroke 1 (section 1) in mm. |
| ×100 | 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 SCT40X100X100S Is Used
3-Position Sorting Gate
Divert packages to three conveyor lanes by stopping the cylinder at retracted (lane 1), mid-stroke 100 mm (lane 2), and extended 200 mm (lane 3). The built-in magnet confirms each position with a sensor.
Two-Depth Pressing
Press components to a shallow 100 mm depth for pre-forming, then extend fully to 200 mm for final forming. The discrete stops ensure consistent part dimensions without a servo.
Multi-Stop Clamping
Clamp workpieces of two different thicknesses on a single fixture. Retract for part change, extend to 100 mm for thin parts, and to 200 mm for thick parts, all with sensor verification.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X100X100S the Right Cylinder?
Choose the SCT40X100X100S when your application needs three fixed stopping points and you want to eliminate the cost and alignment hassle of two separate cylinders with external brackets. The built-in magnet gives you immediate sensor compatibility for position feedback without adding external flags or brackets. If your load requires more thrust, stepping up to the 50 mm bore SCT50X100X100 provides 982 N push per section at the same 0.5 MPa pressure.
For direct replacement, match the 40 mm bore, both 100 mm strokes, PT port thread, basic mounting, and the -S magnet option. This tie-rod cylinder is not interchangeable with ISO 15552 profiles; it must be replaced with another AirTAC SCT of identical configuration. With a 100 mm stroke per section, rod side-loading is minimal, but always align the load axially to preserve seal and bearing life.
Multi-position checklist
- ✓ Need 3 repeatable stops?
- ✓ Section strokes 100 + 100 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 SCT40X100X100S FAQ
It provides 3 distinct mechanical positions because both piston sections have the same 100 mm stroke. The rod stops at 0 mm (fully retracted), 100 mm (one section extended), and 200 mm (both sections extended).
Yes, if your sequence requires only the three fixed stops 0, 100, and 200 mm. The SCT40X100X100S uses one rod line and one set of mounting points, simplifying alignment. Ensure the replacement matches the 40 mm bore, 100 mm strokes, PT1/4 ports, and the -S magnet option.
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