Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X95X95S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X95X95S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 95mm and 95mm give 3 controllable stop positions across a 190mm total travel, with a Ø40mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ40 mm
- Stroke 195 mm
- Stroke 295 mm
- Total travel190 mm
- Positions3 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X95X95S
The SCT40X95X95S is a tandem multi-position cylinder delivering three fixed rod positions: fully retracted (0 mm), mid-stop at 95 mm, and full extension at 190 mm. Both piston sections share a 95 mm stroke, creating a symmetrical three-stop sequence ideal for two-stage clamping or sorting gates. Each actuated section generates 628 N of push force at 0.5 MPa, with a 16 mm diameter piston rod and PT1/4 ports.
A built-in magnet ring on the piston allows direct mounting of CMSG, DMSG, or EMSG sensors along the tie-rod barrel for non-contact position confirmation at each stop. The cylinder uses an adjustable air cushion (21 mm length) at both ends of each section to manage end-of-stroke deceleration. With a body length of 235 mm plus strokes, it fits compact multi-stop stations where two separate cylinders would consume more space and require complex sequencing.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X95X95S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X95X95S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke 1 / Stroke 2 | 95 / 95 mm |
| Total travel | 190 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) | 95 mm |
| P2 (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 (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 SCT40X95X95S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 40 | Bore size in mm (SCT range 32–100). |
| ×95 | Stroke 1 (section 1) in mm. |
| ×95 | 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 SCT40X95X95S Is Used
Two-Stage Part Clamping
Use the 95 mm mid-stop for a low-force pre-clamp, then extend to the full 190 mm for final high-force holding, all with a single cylinder and simple 5/3 valve control.
Three-Position Diverter Gate
Direct packages to left, center, or right lanes on a conveyor by stopping the cylinder rod at 0 mm, 95 mm, or 190 mm, eliminating the need for dual-actuator setups.
Dual-Depth Assembly Press
Achieve two distinct pressing depths in one cycle—seat a bearing at 95 mm stroke, then advance to 190 mm for a secondary staking operation, with sensor feedback at each position.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X95X95S the Right Cylinder?
Choose the SCT when your process needs two or three discrete, repeatable stop points without the cost and programming overhead of a servo axis. This 40 mm bore model suits moderate payloads; if your application demands higher force, stepping up to the 50 mm bore SCT50 series provides 982 N of push per section at the same 0.5 MPa pressure. For lighter, faster cycling, the 32 mm bore offers 402 N.
This model is a direct form-and-function replacement for an existing AirTAC SCT40X95X95S unit. When replacing, match the bore, both 95 mm strokes, the PT port thread, and the integrated magnet (-S suffix). Since the total travel reaches 190 mm, ensure the guided load is supported if side forces are present, as the rod bearing is designed primarily for axial thrust.
Multi-position checklist
- ✓ Need 3 repeatable stops?
- ✓ Section strokes 95 + 95 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 SCT40X95X95S FAQ
It provides three discrete mechanical stops: 0 mm (fully retracted), 95 mm (first section extended), and 190 mm (both sections extended). Because both stroke sections are equal at 95 mm, the 95 mm and 190 mm positions are the only extended stops.
Yes, in many cases. The SCT40X95X95S integrates two piston sections on a common rod, providing three fixed positions from a single compact assembly. This simplifies plumbing and eliminates the need to synchronize two separate actuators, provided the discrete 0/95/190 mm stops match your process requirements.
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