Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X125X100S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X125X100S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 125mm and 100mm give 4 controllable stop positions across a 225mm total travel, with a Ø40mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ40 mm
- Stroke 1125 mm
- Stroke 2100 mm
- Total travel225 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X125X100S
The SCT40X125X100S is a double-acting, multi-position tandem cylinder that delivers four discrete rod stops by combining two piston sections on a single axis. With strokes of 125 mm and 100 mm, the reachable positions are 0 mm (fully retracted), 100 mm, 125 mm, and 225 mm (total travel). Each actuated section provides 628 N of push force at 0.5 MPa, driven through a 16 mm diameter rod.
This model includes a built-in magnet (-S suffix), allowing direct mounting of CMSG, DMSG, or EMSG sensors along the tie-rod barrel for precise end-of-stroke or intermediate position detection. The compact body length A is 235 mm with a 21 mm adjustable air cushion at each end, ensuring smooth deceleration of the load across all four stop positions.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X125X100S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X125X100S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke 1 / Stroke 2 | 125 / 100 mm |
| Total travel | 225 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) | 125 mm |
| P2 (section 2) | 100 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 (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 SCT40X125X100S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 40 | Bore size in mm (SCT range 32–100). |
| ×125 | 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 SCT40X125X100S Is Used
Multi-Stop Diverter Gates
Operates a four-position diverter gate on a conveyor line, directing packages to four separate chutes by stopping the rod at 0, 100, 125, or 225 mm.
Two-Depth Pressing Station
Provides two distinct pressing depths (100 mm and 125 mm) plus a full-extension position (225 mm) for a multi-stage assembly or forming process.
Sequential Part Feeding
Feeds components in a four-step sequence, using the discrete stops to align parts with different tools or inspection stations along the 225 mm total stroke.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X125X100S the Right Cylinder?
Choose the SCT40X125X100S when an application requires four fixed stopping points without the complexity of two independent cylinders and external hard stops. The tandem design simplifies plumbing and mounting compared to using two separate SC40 cylinders. If higher thrust is needed, stepping up to a 50 mm bore provides 982 N of push force per section at the same 0.5 MPa pressure. For a direct replacement, match the 40 mm bore, both strokes of 125 mm and 100 mm, PT port thread, basic mounting, and the -S magnet option.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 125 + 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 SCT40X125X100S FAQ
This tandem cylinder provides 4 distinct mechanical stops at 0 mm (retracted), 100 mm (section 2 extended), 125 mm (section 1 extended), and 225 mm (both sections extended).
Yes, the -S suffix indicates a built-in magnet, making it compatible with AirTAC CMSG, DMSG, and EMSG sensors that clamp directly onto the cylinder's tie-rod barrel.
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 SCT40X125X100S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.