Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X75X5S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X75X5S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 75mm and 5mm give 4 controllable stop positions across a 80mm total travel, with a Ø63mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ63 mm
- Stroke 175 mm
- Stroke 25 mm
- Total travel80 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X75X5S
The SCT63X75X5S tandem cylinder provides four discrete rod positions—0 mm, 5 mm, 75 mm, and the combined 80 mm total travel—using two independently controlled piston sections on a single 20 mm rod. Each section delivers 1559 N of push force at 0.5 MPa, scaling to 2805 N at the maximum operating pressure of 0.9 MPa, making it ideal for two-stage clamping or sorting tasks that require a short initial advance followed by a longer stroke.
This 63 mm bore model features a built-in magnet for direct mounting of CMSG/DMSG/EMSG sensors, enabling precise end-of-stroke or mid-position detection without external brackets. The tie-rod construction houses a 28 mm adjustable air cushion in each section, and the PT1/4 ports keep plumbing compact for the 249 mm baseline body length.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X75X5S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X75X5S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø63 mm |
| Stroke 1 / Stroke 2 | 75 / 5 mm |
| Total travel | 80 mm |
| Stop positions | 4 positions |
| Acting type | Double acting (tandem, multi-position) |
| Port size | PT1/4 |
| Rod thread | M16×1.5 |
| 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, 28 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) | 75 mm |
| P2 (section 2) | 5 mm |
| P3 (both extended) | 80 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 (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 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 SCT63X75X5S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 63 | Bore size in mm (SCT range 32–100). |
| ×75 | Stroke 1 (section 1) in mm. |
| ×5 | 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 SCT63X75X5S Is Used
Two-Stage Precision Sorting
Uses the 5 mm stop for a low-force part verification probe before the 75 mm stroke transfers the accepted component to the outfeed lane.
Dual-Depth Press-Fit Assembly
The 5 mm position sets a locating pin, and the full 80 mm travel completes the press operation, all controlled by sequencing pressure to each cylinder section.
Multi-Stop Gate Control
Provides a partially open gate at 5 mm for small part metering and a fully open gate at 75 mm for bulk flow, with sensor confirmation at every position via the built-in magnet.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X75X5S the Right Cylinder?
Choose the SCT63X75X5S when your process needs a short, precise 5 mm positioning step and a longer 75 mm feed stroke from a single compact unit, eliminating the complexity of two separate cylinders and their mounting hardware. If the 1559 N per-section push force at 0.5 MPa is insufficient, stepping up to the 80 mm bore provides 2513 N per section; for a lighter load, the 50 mm bore offers 982 N.
As a direct replacement, match the 63 mm bore, the exact 75 mm and 5 mm strokes, PT port thread, and the integrated magnet (-S suffix). This basic mount version accepts the full SCT accessory set—FA/FB flanges, CA/CB devises, or LB feet—if your mounting requirements change later.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 75 + 5 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 SCT63X75X5S FAQ
This 4-position cylinder stops at 0 mm (fully retracted), 5 mm (section 2 extended), 75 mm (section 1 extended), and 80 mm (both sections extended). The positions are fixed by the two stroke lengths and are not infinitely adjustable.
Yes, it is a direct form-fit replacement for setups using two 63 mm bore cylinders to achieve the same 5 mm and 75 mm discrete stops. You must match the total 80 mm travel, the -S magnet option for sensors, and the PT port thread to ensure drop-in compatibility.
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