Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X25X100S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X25X100S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 25mm and 100mm give 4 controllable stop positions across a 125mm total travel, with a Ø40mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ40 mm
- Stroke 125 mm
- Stroke 2100 mm
- Total travel125 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X25X100S
The SCT40X25X100S is a tandem multi-position pneumatic cylinder that delivers four distinct, repeatable rod positions without external stops or complex controls. By pressurising its two piston sections independently or together, the 16 mm rod reaches exactly 0 mm (fully retracted), 25 mm, 100 mm, and the full combined travel of 125 mm.
Each actuated section generates 628 N of push force at 0.5 MPa, rising to 1130 N at 0.9 MPa, making it a robust choice for sorting gates and two-stage clamping. The built-in magnet allows CMSG/DMSG sensors to mount directly on the tie-rod barrel for end-of-stroke or mid-position sensing. Its body length A is 235 mm, and the PT1/4 ports include a 21 mm adjustable air cushion for smooth deceleration.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X25X100S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X25X100S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke 1 / Stroke 2 | 25 / 100 mm |
| Total travel | 125 mm |
| Stop positions | 4 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 (4)
| Position | Rod extension |
|---|---|
| P0 (retracted) | 0 mm |
| P1 (section 1) | 25 mm |
| P2 (section 2) | 100 mm |
| P3 (both extended) | 125 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 SCT40X25X100S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 40 | Bore size in mm (SCT range 32–100). |
| ×25 | Stroke 1 (section 1) in mm. |
| ×100 | 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 SCT40X25X100S Is Used
Two-Way Part Diverting
Uses the 25 mm and 100 mm stops to guide parts into separate chutes or lanes, eliminating the need for a rotary actuator at the diverter gate.
Two-Depth Press-Fit Assembly
The 25 mm stroke pre-positions a tool, and the full 125 mm travel completes the press. The 125 mm stop provides a hard location for consistent insertion depth.
Multi-Stop Pusher on Conveyors
Stops at 25 mm and 100 mm allow a single pusher to sort cartons to two different take-away lanes, with sensors confirming position via the built-in magnet.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X25X100S the Right Cylinder?
This 4-position cylinder replaces setups that would otherwise need two separate cylinders and a mounting bracket to achieve the same 0-25-100-125 mm stroke sequence. For applications needing more force at the same 0.5 MPa pressure, the 50 mm bore SCT50 variant provides 982 N push per section. When replacing an existing SCT40X25X100S, match the 40 mm bore, both the 25 mm and 100 mm section strokes, the PT thread, and the -S magnet option to ensure sensor compatibility.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 25 + 100 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 SCT40X25X100S FAQ
The rod stops at 0 mm (retracted), 25 mm, 100 mm, and the total travel of 125 mm. You select the position by pressurising the first section (25 mm), the second section (100 mm), or both together (125 mm).
It provides the same four discrete stop positions on a single common rod line, which saves space and simplifies pneumatic plumbing. You avoid the alignment issues and extra mounting hardware required to synchronise two independent cylinders.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC SCT Multi-Position Cylinders
Request a Quote for Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X25X100S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.