Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X175X125
The AirTAC Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X175X125 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 175mm and 125mm give 4 controllable stop positions across a 300mm total travel, with a Ø80mm bore, PT3/8 ports and adjustable end cushioning.
- BoreØ80 mm
- Stroke 1175 mm
- Stroke 2125 mm
- Total travel300 mm
- Positions4 stops
- Port sizePT3/8
About the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X175X125
The SCT80X175X125 tandem cylinder delivers four fixed rod positions—0, 125, 175, and 300 mm—by combining two strokes on a single tie-rod body. Each 80 mm bore piston section generates 2513 N of push force at 0.5 MPa, rising to 4523 N at the 0.9 MPa maximum operating pressure, making it suitable for multi-stop material handling.
This double-acting unit uses a 25 mm diameter rod with PT3/8 ports and an M20x1.5 rod thread. The body length A(SCT) is 296 mm, and each end cap includes a 28 mm adjustable air cushion to decelerate the load quietly at every stop position. The standard TPU seals operate reliably from -20 to +70 °C.
Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X175X125 Technical Specifications
| Model | Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X175X125 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø80 mm |
| Stroke 1 / Stroke 2 | 175 / 125 mm |
| Total travel | 300 mm |
| Stop positions | 4 positions |
| Acting type | Double acting (tandem, multi-position) |
| Port size | PT3/8 |
| Rod thread | M20×1.5 |
| 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, 28 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) | 175 mm |
| P2 (section 2) | 125 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 (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 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 SCT80~100 Multi-Position Tandem Cylinder SCT80X175X125
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 80 | Bore size in mm (SCT range 32–100). |
| ×175 | Stroke 1 (section 1) in mm. |
| ×125 | 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 SCT80~100 Multi-Position Tandem Cylinder SCT80X175X125 Is Used
Sorting Gate Actuation
Commands the diverter gate to four discrete angles for parcel routing in a logistics hub, using the 0, 125, 175, and 300 mm positions to direct items to different chutes.
Multi-Depth Pressing
Provides two controlled pressing depths (125 mm and 175 mm) plus a full 300 mm stroke for part ejection in a laminating or assembly fixture, all from a single pneumatic circuit.
Staged Part Feeding
Advances a workpiece through three precise stations on a linear transfer line, stopping at 125 mm for drilling, 175 mm for tapping, and 300 mm for unloading.
Is the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X175X125 the Right Cylinder?
Choose this 4-position configuration when a process requires two distinct intermediate stops plus full retract and full extend, eliminating the complexity of two separate cylinders and external hard stops. For lighter loads, stepping down to a 63 mm bore reduces per-section push to 1559 N at 0.5 MPa; for heavier work, the 100 mm bore provides 3927 N per section.
A direct replacement must match the 80 mm bore, the 175 mm and 125 mm strokes, PT port thread, and basic mounting. Because the combined 300 mm total travel creates a long cantilever, ensure the rod is externally guided if side loads are present to prevent bending and premature seal wear.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 175 + 125 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 SCT80~100 Multi-Position Tandem Cylinder SCT80X175X125 FAQ
It provides four distinct mechanical stop positions: 0 mm (fully retracted), 125 mm (second section extended), 175 mm (first section extended), and 300 mm (both sections extended, total travel).
Yes, it consolidates two fixed strokes into one tandem body, saving space and simplifying plumbing. A replacement must match the 80 mm bore, both the 175 mm and 125 mm strokes, PT port thread, and basic mounting style.
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 SCT80~100 Multi-Position Tandem Cylinder SCT80X175X125
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.