Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X175X50S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X175X50S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 175mm and 50mm give 4 controllable stop positions across a 225mm total travel, with a Ø63mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ63 mm
- Stroke 1175 mm
- Stroke 250 mm
- Total travel225 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X175X50S
The SCT63X175X50S is a tandem multi-position pneumatic cylinder that delivers four fixed rod positions from two independent piston sections: 0 mm (fully retracted), 50 mm, 175 mm, and the combined total travel of 225 mm. Each 63 mm bore section generates 1559 N of push force at 0.5 MPa, rising to 2805 N at the maximum operating pressure of 0.9 MPa, making it suitable for sequenced clamping or multi-stop material handling.
This model includes a built-in magnet (-S suffix), allowing direct attachment of CMSG, DMSG, or EMSG reed and solid-state sensors along the tie-rod barrel for non-contact position feedback. The 20 mm diameter piston rod and 28 mm adjustable air cushion at each end cap ensure smooth deceleration even under frequent cycling. The body length A is 249 mm, and the standard PT1/4 ports keep integration simple with common pneumatic fittings.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X175X50S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X175X50S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø63 mm |
| Stroke 1 / Stroke 2 | 175 / 50 mm |
| Total travel | 225 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) | 175 mm |
| P2 (section 2) | 50 mm |
| P3 (both extended) | 225 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 SCT63X175X50S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 63 | Bore size in mm (SCT range 32–100). |
| ×175 | Stroke 1 (section 1) in mm. |
| ×50 | 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 SCT63X175X50S Is Used
Multi-lane Diverter Gates
Actuates a diverter gate to four distinct positions, routing packages or products to separate conveyor lanes based on barcode or weight data.
Two-Depth Pressing or Staking
Provides a primary approach stroke of 175 mm followed by a controlled 50 mm pressing depth, then a third combined depth of 225 mm for different assembly stages.
Sequential Clamping Fixtures
Clamps a workpiece with an initial 50 mm travel, then applies a secondary 175 mm movement to reposition the part for a second machining operation in one automated cycle.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X175X50S the Right Cylinder?
Select the SCT63X175X50S when your process requires a single actuator to index to four distinct positions without the complexity and cost of two separate cylinders and external hard stops. The 175 mm section handles the primary long travel, while the 50 mm section provides a precise secondary offset. If the 1559 N push force per section at 0.5 MPa is insufficient, stepping up to the SCT80 bore delivers 2513 N per section. For a direct replacement, match the 63 mm bore, both strokes (175 mm and 50 mm), PT port thread, basic mounting, and the -S magnet option.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 175 + 50 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 SCT63X175X50S FAQ
This tandem cylinder provides four discrete rod positions: 0 mm (fully retracted), 50 mm (section 2 extended), 175 mm (section 1 extended), and 225 mm (both sections extended). The stops are fixed by the two stroke lengths and are not infinitely adjustable.
Yes, in applications needing fixed intermediate stops. It replaces two individual cylinders and external hard stops with a single, compact tandem unit. Ensure the replacement matches the 63 mm bore, 175 mm and 50 mm strokes, PT port thread, and the -S magnet option for sensor compatibility.
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