Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X125X175S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X125X175S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 125mm and 175mm give 4 controllable stop positions across a 300mm total travel, with a Ø32mm bore, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Stroke 1125 mm
- Stroke 2175 mm
- Total travel300 mm
- Positions4 stops
- Port sizePT1/8
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X125X175S
The SCT32X125X175S is a compact multi-position tandem cylinder delivering four discrete rod stops: 0 mm, 125 mm, 175 mm, and the full 300 mm total travel. Each 32 mm bore section provides 402 N of push force at 0.5 MPa, driven by a 12 mm diameter piston rod with an M10x1.25 thread.
A built-in magnet (the -S suffix) allows direct mounting of CMSG/DMSG/EMSG sensors along the tie-rod barrel for non-contact position feedback. The cylinder body has a 233 mm base length and 21 mm of adjustable air cushion at each end, giving smooth deceleration across all four stop positions.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X125X175S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X125X175S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø32 mm |
| Stroke 1 / Stroke 2 | 125 / 175 mm |
| Total travel | 300 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) | 125 mm |
| P2 (section 2) | 175 mm |
| P3 (both extended) | 300 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 SCT32X125X175S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm (SCT range 32–100). |
| ×125 | Stroke 1 (section 1) in mm. |
| ×175 | 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 SCT32X125X175S Is Used
Three-Way Part Sorting
Use the four discrete positions to divert parts into three separate lanes or bins. The 125 mm and 175 mm stops align precisely with different chute entries for reliable sorting.
Multi-Depth Pressing
Achieve two distinct pressing depths in one cycle. The first section advances to 125 mm for an initial form, and the second extends to 175 mm for a secondary operation, all with the same tooling.
Staged Product Transfer
Move a product through a three-stage transfer sequence. Retract, extend to 125 mm for a pick, extend to 175 mm for an intermediate place, and fully extend to 300 mm for final delivery.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X125X175S the Right Cylinder?
Choose this SCT when your machine needs four fixed stopping points from a single compact assembly, eliminating the complexity of two separate cylinders with external hard stops. The 125 mm and 175 mm section strokes create distinct mid-stroke positions ideal for multi-depth pressing or sorting tasks. If you require higher force, step up to the SCT40 series, where each section delivers 628 N of push at the same 0.5 MPa pressure. For direct replacement, match the 32 mm bore, both 125 mm and 175 mm strokes, PT port thread, and the -S magnet option. Note that with a combined 300 mm of travel, ensure the rod is externally guided if significant side loads are present.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 125 + 175 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 SCT32X125X175S FAQ
This model provides 4 distinct rod positions because the two strokes are unequal. The positions are: fully retracted (0 mm), first section extended (125 mm), second section extended (175 mm), and both sections extended for total travel (300 mm).
Yes, if your application requires two fixed intermediate stops at 125 mm and 175 mm. This tandem cylinder replaces two individual cylinders and their mounting hardware with a single, pre-aligned assembly, but ensure the 402 N per-section push force meets your load requirements at both stops.
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