Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC200X125STC
The AirTAC Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC200X125STC is a genuine double-acting standard air cylinder with a Ø200mm bore and 125mm stroke, PT3/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ200 mm
- Stroke125 mm
- Port sizePT3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 33 mm
About the Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC200X125STC
The SC200X125STC is a large-bore double-acting tie-rod cylinder delivering 15708 N of push force at 0.5 MPa (28274 N at the 0.9 MPa maximum operating pressure). Its 40 mm diameter piston rod and 33 mm adjustable air cushion are built to manage high-inertia loads with smooth end-of-stroke deceleration.
This configuration includes a built-in magnet and centre trunnion mount (F-SC200TC with TCM1 bracket), making it ready for pivoting applications where the cylinder body must swing. The standard PT3/4 port thread and TPU seals suit normal industrial air supplies from -20 to +70 °C.
Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC200X125STC Technical Specifications
| Model | Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC200X125STC |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø200 mm |
| Stroke | 125 mm |
| Acting type | Double acting |
| Port size | PT3/4 |
| Rod thread | M36×2 |
| 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 – 500 mm/s |
| Cushion | Adjustable, 33 mm |
| Max stroke | Up to 1500 mm |
Specifications follow the official AirTAC SC series datasheet. Operating pressure 0.15–1.0 MPa, proof pressure 1.5 MPa, temperature −20 to +70 °C. Confirm against the product label before installation. Thread options: PT (standard) / G.
Theoretical Output Force (Ø200mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 15708 N | 15080 N |
| 0.7 MPa | 21991 N | — |
| Max (approx.) | 3204 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC200X125STC
| SC | Standard tie-rod cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×125 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related variants: SCD (double rod), SCJ (adjustable stroke), SCT (multi-position). Seals: TPU standard / H = Viton / N = NBR. Thread: blank = PT, G = G thread.
Where the Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC200X125STC Is Used
Heavy Press & Forming
The 15.7 kN push force at 0.5 MPa drives platen movement in hydraulic-pneumatic press tools, clamping, and metal-forming jigs.
Pivoting Conveyor Gates
The centre trunnion mount allows the cylinder body to pivot, ideal for actuating heavy diverter gates or chutes on aggregate and mining conveyors.
Large-Format Material Handling
Provides the muscle for lifting, tilting, or transferring pallets and heavy fabricated components on assembly and welding lines.
Is the Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC200X125STC the Right Cylinder?
For higher force at the same pressure, step up to the 250 mm bore (24544 N push at 0.5 MPa); for a lighter, faster option at this 125 mm stroke, the 160 mm bore (10053 N push at 0.5 MPa) may suffice. The 40 mm rod is robust, but any side load at this bore class demands an external guide or guided cylinder to protect the rod bearing and seals.
To replace an existing unit, match five points: 200 mm bore, 125 mm stroke, PT3/4 port thread, centre trunnion (TC) mounting with the TCM1 bracket, and the magnet suffix (-S) for barrel-mounted sensors. The SC is a tie-rod cylinder and is not dimensionally interchangeable with ISO 15552 profile cylinders.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC200X125STC FAQ
At 0.5 MPa, push force is 15708 N and pull force is 15080 N. At the maximum operating pressure of 0.9 MPa, push force reaches 28274 N. The theoretical maximum force at 1.0 MPa is 3204 kgf.
No. The SC200 is a standard double-acting cylinder and will drift or drop if pressure is exhausted or the directional valve is centred. For load holding without live pressure, you must add an external rod lock, brake, or a pilot-operated check valve.
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