Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X200X75S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X200X75S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 200mm and 75mm give 4 controllable stop positions across a 275mm total travel, with a Ø63mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ63 mm
- Stroke 1200 mm
- Stroke 275 mm
- Total travel275 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X200X75S
The SCT63X200X75S is a tandem multi-position pneumatic cylinder that provides four fixed rod positions from its two sequenced piston sections: 0 mm (fully retracted), 75 mm, 200 mm, and the combined total travel of 275 mm. Each actuated section delivers a push force of 1559 N at 0.5 MPa, scaling to 2805 N at the maximum operating pressure of 0.9 MPa, driven through a 20 mm diameter piston rod.
This model includes an integrated magnet (denoted by the -S suffix), allowing direct mounting of CMSG, DMSG, or EMSG sensors on the tie-rod barrel for reliable, non-contact position feedback at any of the four stops. The standard PT1/4 ports and adjustable air cushion (28 mm length) provide smooth deceleration, with a body length of 249 mm plus strokes. It uses the default TPU seals for a standard operating range of -20 to +70 °C.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X200X75S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X200X75S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø63 mm |
| Stroke 1 / Stroke 2 | 200 / 75 mm |
| Total travel | 275 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) | 200 mm |
| P2 (section 2) | 75 mm |
| P3 (both extended) | 275 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 SCT63X200X75S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 63 | Bore size in mm (SCT range 32–100). |
| ×200 | Stroke 1 (section 1) in mm. |
| ×75 | 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 SCT63X200X75S Is Used
Two-Depth Part Insertion
Uses the 75 mm stroke for a pre-insertion approach and the 200 mm stroke for a full-depth press, providing two distinct assembly depths from one compact actuator.
Dual-Lane Diverter Gate
Positions a diverter chute at four angles: home (0 mm), low lane (75 mm), high lane (200 mm), and a bypass position (275 mm) for sorting packages by height.
Multi-Stop Clamping Fixture
Provides four programmable hard stops for clamping different workpiece sizes on a CNC fixture, changing the grip width by pressurizing different cylinder sections.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X200X75S the Right Cylinder?
Choose the SCT63X200X75S when your application requires four distinct mechanical stops without the complexity of servo control or multiple independent cylinders. The 200 mm and 75 mm stroke combination is ideal for a long primary travel with a short secondary positioning step, such as a two-depth pressing operation. If higher force is needed, stepping up to the 80 mm bore provides 2513 N of push force per section at 0.5 MPa.
For a direct replacement, match the 63 mm bore, the exact 200 mm and 75 mm section strokes, PT port thread, and the integrated magnet. Since the 200 mm stroke section is considerable, ensure the external load is guided to prevent side-loading and rod bending, which can accelerate seal wear and compromise the multi-position accuracy.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 200 + 75 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 SCT63X200X75S FAQ
This tandem cylinder has four distinct rod positions: 0 mm (fully retracted), 75 mm (stroke 2 only), 200 mm (stroke 1 only), and 275 mm (both strokes extended, total travel). The positions are achieved by pressurizing the two piston sections independently or together.
Yes. The -S suffix in the model code SCT63X200X75S confirms a built-in magnet is installed along the barrel. This allows you to directly clamp CMSG (reed) or DMSG/EMSG (solid-state) sensors onto the tie-rods to detect any of the four fixed piston positions.
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