Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC200X70
The AirTAC Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC200X70 is a genuine double-acting standard air cylinder with a Ø200mm bore and 70mm stroke, PT3/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ200 mm
- Stroke70 mm
- Port sizePT3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 33 mm
About the Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC200X70
The SC200X70 is a double-acting tie-rod cylinder delivering substantial force in a compact 70 mm stroke. At 0.5 MPa air pressure it generates 15708 N pushing and 15080 N pulling, scaling up to 28274 N at the maximum operating pressure of 0.9 MPa.
This model uses a 40 mm diameter piston rod with M36x2 male threads and PT3/4 port connections. The adjustable air cushion (33 mm length) decelerates the 200 mm bore piston smoothly at end-of-stroke, protecting the end caps during high-cycle operation. The body length A is 244 mm, making the total extended length approximately 314 mm.
Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC200X70 Technical Specifications
| Model | Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC200X70 |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø200 mm |
| Stroke | 70 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 SC200X70
| SC | Standard tie-rod cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×70 | 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 SC200X70 Is Used
Heavy Part Clamping
Applies up to 28274 N at 0.9 MPa to secure large weldments or castings in machining fixtures, preventing movement during milling or drilling.
Compaction & Pressing
Delivers a controlled 70 mm pressing stroke for compacting waste, forming rubber, or laminating panels where a short, high-force push is required.
Diverter Gate Actuation
Operates heavy diverter gates on mining or aggregate conveyors, using the 40 mm rod's rigidity to push material flow from one chute to another.
Is the Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC200X70 the Right Cylinder?
The SC200 bore suits heavy-duty clamping, pressing, and lifting where forces exceed 15000 N at standard plant pressure. If your load requires less force, the SC160 bore provides 10053 N push at 0.5 MPa, often reducing air consumption. For strokes of 300 mm or longer on this 40 mm rod, evaluate side-load bending moments and consider an external linear guide or a guided cylinder to protect the rod bearing and seal.
This basic-configuration SC200X70 ships without a magnet, mounting accessories, or special seals. When replacing an existing cylinder, match five points: 200 mm bore, 70 mm stroke, PT port thread, basic (no accessory) mounting, and no magnet. Mounting brackets (e.g., foot mount F-SC200LB or centre trunnion F-SC200TC) are ordered separately.
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 SC200X70 FAQ
At 0.5 MPa (5 bar) it produces 15708 N pushing and 15080 N pulling. At the maximum operating pressure of 0.9 MPa, the push force increases to 28274 N. The theoretical maximum at 1.0 MPa is 3204 kgf.
No. The SC series is a tie-rod cylinder with a shorter overall body length than an ISO 15552 profile cylinder. It is not dimensionally interchangeable with ISO 15552 mounts. It matches other AirTAC SC200 cylinders of the same stroke and port configuration.
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