Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X113X77
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X113X77 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 113mm and 77mm give 4 controllable stop positions across a 190mm total travel, with a Ø32mm bore, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Stroke 1113 mm
- Stroke 277 mm
- Total travel190 mm
- Positions4 stops
- Port sizePT1/8
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X113X77
The SCT32X113X77 tandem cylinder provides four distinct rod positions for sequencing tasks without complex controls. Its two independently pressurised sections stop at 0 mm, 113 mm, 77 mm, and the full combined travel of 190 mm, giving designers a compact way to handle multi-step workflows.
Each 32 mm bore section generates 402 N of push force at 0.5 MPa, rising to 724 N at the maximum operating pressure of 0.9 MPa. The 12 mm diameter rod and 21 mm adjustable air cushion at both ends protect the assembly during high-speed cycles, while the tie-rod construction keeps the 233 mm body length rigid.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X113X77 Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X113X77 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø32 mm |
| Stroke 1 / Stroke 2 | 113 / 77 mm |
| Total travel | 190 mm |
| Stop positions | 4 positions |
| Acting type | Double acting (tandem, multi-position) |
| Port size | PT1/8 |
| Rod thread | M10×1.25 |
| 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) | 113 mm |
| P2 (section 2) | 77 mm |
| P3 (both extended) | 190 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 (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 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 SCT32X113X77
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm (SCT range 32–100). |
| ×113 | Stroke 1 (section 1) in mm. |
| ×77 | 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 SCT32X113X77 Is Used
Two-Lane Diverter Gate
Uses the 113 mm and 77 mm stops to route packages to two separate conveyor lanes from one feed point, controlled entirely by pneumatic valves.
Staggered Depth Pressing
The 77 mm stroke performs a shallow pre-crimp, while the 113 mm stroke completes the full-depth forming operation in a progressive assembly fixture.
Multi-Stop Part Transfer
Shifts a workpiece carrier to a 77 mm inspection station and a 113 mm unloading station, eliminating the need for two separate short-stroke cylinders.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X113X77 the Right Cylinder?
Choose this four-position cylinder when a single actuator must serve two different intermediate stops, such as shifting a diverter gate to two separate lanes. If your load demands higher force, step up to the SCT40 bore, which provides 628 N of push per section at the same 0.5 MPa. For replacement, match the bore, both strokes (113 mm and 77 mm), PT port thread, and basic mounting exactly to ensure the same discrete position set and mechanical fit.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 113 + 77 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 SCT32X113X77 FAQ
It provides four discrete rod-end positions: 0 mm (fully retracted), 113 mm (section 1 extended), 77 mm (section 2 extended), and 190 mm (both sections extended). The unequal strokes create four unique stops.
Yes, if you need three or four fixed stops along a single linear axis. It saves space and simplifies plumbing compared to mounting two separate cylinders back-to-back, but the force remains 402 N per actuated section, not a combined 804 N.
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