Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X350
The AirTAC Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X350 is a genuine double-acting standard air cylinder with a Ø250mm bore and 350mm stroke, PT1" air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ250 mm
- Stroke350 mm
- Port sizePT1"
- Acting typeDouble acting
- Rod threadM42×2
- CushionAdjustable, 40 mm
About the Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X350
The SC250X350 is a large-bore double-acting pneumatic cylinder delivering a substantial push force of 24544 N at 0.5 MPa, rising to 44178 N at the maximum operating pressure of 0.9 MPa. With a 350 mm stroke, this ISO 6430 class tie-rod cylinder is built for heavy industrial linear motion, featuring a robust 50 mm diameter piston rod and M42x2 rod thread for secure tooling attachment.
Its adjustable air cushion, with a 40 mm cushion length, effectively decelerates high-inertia loads at the end of the stroke, protecting the end cap and reducing noise. The body length A is 294 mm, and the PT1 inch port ensures high flow for demanding cycle rates. This model is supplied with standard TPU seals and PT thread ports.
Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X350 Technical Specifications
| Model | Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X350 |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø250 mm |
| Stroke | 350 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 SC250X350
| SC | Standard tie-rod cylinder series. |
|---|---|
| 250 | Bore size in mm. |
| ×350 | 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 SC250X350 Is Used
Sawmill & Log Handling
Provides the high force needed for log kickers, carriage drives, and board flippers in sawmill operations, where the 24544 N push force at 0.5 MPa easily handles heavy timber.
Heavy Agricultural Machinery
Ideal for actuating large chutes, gates, and hopper doors on harvesters and grain handling equipment, with a durable tie-rod design that withstands dusty, outdoor conditions.
Hydraulic Press Alternatives
A clean, high-force pneumatic solution for compacting waste, baling recyclables, or pressing components where a 44 kN push at 0.9 MPa can replace a hydraulic power unit.
Is the Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X350 the Right Cylinder?
For applications requiring slightly less force, the SC200 bore (15708 N push at 0.5 MPa) offers a more compact alternative. When specifying a replacement, match these five points exactly: 250 mm bore, 350 mm stroke, PT1 inch port thread, the specific mounting accessory (if any), and the magnet option (-S). This tie-rod cylinder is not dimensionally interchangeable with ISO 15552 profile cylinders.
For strokes of 350 mm, ensure the load is guided and side forces are eliminated. The 50 mm rod has high column strength, but any lateral load on an unsupported rod can cause bearing wear and seal failure. Use external guide rails or a guided cylinder configuration for off-center loads.
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 SC250X350 FAQ
At the standard 0.5 MPa operating pressure, the push force is 24544 N and the pull force is 23562 N. At the maximum operating pressure of 0.9 MPa, the push force increases to 44178 N. The theoretical maximum force at 1.0 MPa is 5006 kgf.
No. The SC250X350 is a standard double-acting cylinder and will not hold its position if air pressure is lost or the directional valve is centered. The adjustable air cushion only decelerates the piston at the stroke end; it is not a locking or holding brake. For load holding, you must add an external rod lock or a pilot-operated check valve.
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