Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X1850
The AirTAC Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X1850 is a genuine double-acting standard air cylinder with a Ø250mm bore and 1850mm stroke, PT1" air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ250 mm
- Stroke1850 mm
- Port sizePT1"
- Acting typeDouble acting
- Rod threadM42×2
- CushionAdjustable, 40 mm
About the Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X1850
The SC250X1850 is a large-bore double-acting pneumatic cylinder from the AirTAC SC tie-rod series, delivering a substantial push force of 24544 N at 0.5 MPa and up to 44178 N at the maximum operating pressure of 0.9 MPa. With a 50 mm diameter piston rod and a 1-inch PT port, this cylinder is built for heavy industrial linear motion tasks requiring significant power over a long 1850 mm stroke.
This model features a non-standard 1850 mm stroke, exceeding the standard maximum of 1500 mm for the 250 mm bore, making it a made-to-order solution for extended reach applications. The cylinder body length A is 294 mm, and it includes a 40 mm adjustable air cushion to decelerate the massive piston assembly smoothly at the end of travel, reducing impact stress. Operating pressure ranges from 0.15 to 1.0 MPa with a standard temperature range of -20 to +70 °C using TPU seals.
Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X1850 Technical Specifications
| Model | Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X1850 |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø250 mm |
| Stroke | 1850 mm |
| Acting type | Double acting |
| Port size | PT1" |
| Rod thread | M42×2 |
| 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, 40 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 (Ø250mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 24544 N | 23562 N |
| 0.7 MPa | 34361 N | — |
| Max (approx.) | 5006 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 SC250X1850
| SC | Standard tie-rod cylinder series. |
|---|---|
| 250 | Bore size in mm. |
| ×1850 | 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 SC250X1850 Is Used
Heavy Press & Forming
Provides the high force (up to 44178 N at 0.9 MPa) needed to operate large-scale forming dies, stamping heads, and heavy-duty clamping fixtures in metal fabrication.
Long-Reach Material Handling
The 1850 mm non-standard stroke is ideal for pushing or lifting heavy pallets, logs, or structural materials across long distances in sawmills and distribution centers.
Large Valve & Damper Actuation
Delivers the sustained thrust required to open and close massive industrial valves, dampers, or diverter gates in processing plants, water treatment, and power generation.
Is the Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X1850 the Right Cylinder?
Select the SC250X1850 when your application demands a push force in the 24544 N class at 0.5 MPa. If your force requirement is lower, consider stepping down to the 200 mm bore (15708 N at 0.5 MPa) to reduce air consumption and physical footprint. For an exceptionally long 1850 mm stroke, it is critical to manage side loads; the 50 mm rod is robust, but external guides or a guided cylinder configuration are strongly recommended to prevent rod bending and ensure bearing longevity. For a direct replacement, match the 250 mm bore, 1850 mm stroke, 1-inch PT port thread, and basic mounting configuration.
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 SC250X1850 FAQ
The theoretical push force at 0.5 MPa is 24544 N, and the pull force is 23562 N. At the maximum operating pressure of 0.9 MPa, the push force reaches 44178 N. The maximum theoretical force at 1.0 MPa is 5006 kgf.
For strokes exceeding 1500 mm, the long, unsupported piston rod is susceptible to bending under side loads. You must use an external linear guide or rod support to absorb transverse forces. The cylinder's adjustable air cushion only decelerates the piston at the stroke end and does not act as a lock or brake.
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