Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X630STC
The AirTAC Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X630STC is a genuine double-acting standard air cylinder with a Ø250mm bore and 630mm stroke, PT1" air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ250 mm
- Stroke630 mm
- Port sizePT1"
- Acting typeDouble acting
- Rod threadM42×2
- CushionAdjustable, 40 mm
About the Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X630STC
The SC250X630STC is a large-bore double-acting pneumatic cylinder delivering 24544 N of push force at 0.5 MPa, rising to 44178 N at the maximum operating pressure of 0.9 MPa. With a 630 mm stroke, this ISO 6430 class tie-rod actuator uses a robust 50 mm diameter piston rod and M42x2 male rod thread for heavy-duty mechanical coupling.
This configuration includes a built-in magnet (-S) for direct mounting of CMSG/DMSG/EMSG reed or solid-state sensors, and a centre trunnion mount (TC) supplied with the TCM1 bracket (F-SC250TC). The adjustable air cushion decelerates the piston across a 40 mm cushion length, protecting end caps during high-energy stops.
Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X630STC Technical Specifications
| Model | Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X630STC |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø250 mm |
| Stroke | 630 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 SC250X630STC
| SC | Standard tie-rod cylinder series. |
|---|---|
| 250 | Bore size in mm. |
| ×630 | 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 SC250X630STC Is Used
Heavy Press Tool Actuation
Operates large forming or stamping press beds, where the 24544 N push force at 0.5 MPa reliably clamps and forms heavy-gauge metal sheets.
Bulk Material Gate Control
Drives a heavy slide gate on a silo or hopper discharging aggregates, using the trunnion mount to pivot the cylinder as the gate cycles.
Large Casting Manipulation
Positions a heavy manipulator arm in a foundry, with the magnetic sensors confirming full retraction before a new casting is loaded.
Is the Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X630STC the Right Cylinder?
For applications requiring less force, stepping down to a 200 mm bore reduces push force to 15708 N at 0.5 MPa, while still supporting strokes up to 1500 mm. At this 630 mm stroke, the 50 mm rod is substantial, but any significant side loading still demands an external linear guide or a guided cylinder to prevent rod bearing wear and bending.
When replacing this cylinder, match five key points: 250 mm bore, 630 mm stroke, PT port thread, centre trunnion (TC) mounting with the TCM1 bracket, and the built-in magnet (-S) for sensor compatibility. This ensures a direct dimensional and functional swap.
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 SC250X630STC FAQ
At the standard 0.5 MPa operating pressure, the cylinder provides 24544 N pushing and 23562 N pulling. 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 AirTAC SC series is a tie-rod cylinder with a shorter body length than an ISO 15552 profile cylinder, so it is not dimensionally interchangeable. It is a direct replacement only for another AirTAC SC250 tie-rod cylinder with matching bore, stroke, PT ports, TC mount, and magnet option.
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