Airtac SGC Standard Cylinder SGC250X75
The AirTAC Airtac SGC Standard Cylinder SGC250X75 is a genuine double acting ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø250mm bore and 75mm stroke, G1 air ports and adjustable end cushioning. Its large-bore tie-rod build delivers high thrust and drops into standardized ISO 15552 mounting on heavy automation.
- BoreØ250 mm
- Stroke75 mm
- Port sizeG1
- Acting typeDouble acting
- Rod threadM42×2.0
- CushionAdjustable, 60 mm
About the Airtac SGC Standard Cylinder SGC250X75
Delivering massive thrust for heavy industry, this double-acting tie-rod cylinder generates 24543 N of push force at 0.5 MPa. Built to ISO 15552 mounting interface dimensions, it drops directly into existing large-bore fixtures without custom bracketry. Four steel tie rods clamp the aluminium barrel to the covers, providing the structural rigidity needed to handle 5006 kgf theoretical maximum force without flexing.
Because this is a Ø250 bore, TPU seals are unavailable; instead, NBR components handle the front-cover packing and buffer gasket. Plan for about 14726 N of real work at 0.5 MPa, which safely lifts roughly 1251 kg vertically with a 2:1 margin. The piston uses a two-way seal with an integrated oil reservoir for continuous lubrication. Note that this specific SKU lacks the -S magnet, so it cannot host CMSG, DMSG, or EMSG position switches.
Airtac SGC Standard Cylinder SGC250X75 Technical Specifications
| Model | Airtac SGC Standard Cylinder SGC250X75 |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø250 mm |
| Stroke | 75 mm |
| Acting type | Double acting |
| Port size | G1 |
| Rod thread | M42×2.0 |
| 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, 60 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SGC datasheet and ISO 15552 dimensions. Confirm against the product label before installation. Thread options: PT (blank) / G. TPU seals are not available for the Ø250 bore (NBR / Viton only).
Theoretical Output Force (Ø250mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 24544 N | 23562 N |
| 0.7 MPa | 34361 N | — |
| Max (@1.0 MPa) | 5006 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SGC Standard Cylinder SGC250X75
| SGC | ISO 15552 tie-rod cylinder (double-acting type). |
|---|---|
| 250 | Bore size in mm (125 / 160 / 200 / 250). |
| ×75 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSG / DMSG / EMSG sensors. |
SGC-family variants: SGC (double acting), SGCD (double rod), SGCJ (adjustable stroke). Mounting: LB / FA / FB / CA / CB / CR / TC / FTC / TCM1 / TCM2. Seals: TPU (blank) / Viton H / NBR N.
Where the Airtac SGC Standard Cylinder SGC250X75 Is Used
Stamping Press Ejection
Ejects heavy formed panels from 800-ton presses using 24543 N of push force at 0.5 MPa, absorbing end-of-stroke impact via the 60 mm adjustable cushion.
Foundry Mold Clamping
Secures heavy sand casting molds under high vibration, relying on the four steel tie rods to maintain structural rigidity against 5006 kgf theoretical loads.
Palletizer Stop Gate
Halts incoming 1200 kg pallets on a high-speed conveyor line, safely managing the kinetic energy within the short 75 mm stroke envelope.
Is the Airtac SGC Standard Cylinder SGC250X75 the Right Cylinder?
When sizing this unit, compare it against the adjacent bores: the Ø200 offers 15708 N push at 0.5 MPa, while the Ø250 is the largest in the SGC family with no bigger standard option. The 75 mm stroke is short, keeping side-load risks minimal, but always ensure rigid guidance for the 50 mm rod. A G1 air port supplies the volume needed for rapid 30-500 mm/s cycling.
Remember that a standard cylinder drifts when air is removed or a valve centers; the adjustable 60 mm cushions only decelerate the piston near stroke end. If the machinery requires vertical load holding during an air loss event, install an external rod lock or a pilot-operated check valve. For position feedback, you must select the -S magnet variant to enable sensor mounting.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G / NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Long-stroke side load — support the rod end
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; support long strokes at the rod end.
- check Set cushions to minimum, then release gradually.
- check Use correct mounting accessory (LB/FA/FB/CA/CB/CR/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SGC Standard Cylinder SGC250X75 FAQ
The SGC250X75 delivers 24543 N push and 23562 N pull at 0.5 MPa, and 34360 N push and 32986 N pull at 0.7 MPa. The theoretical maximum force is 5006 kgf at 1.0 MPa. It uses a G1 air port, a 50 mm piston rod, and operates at speeds of 30-500 mm/s.
This specific SKU lacks the -S magnet, so it cannot support CMSG, DMSG, or EMSG switches. Mechanically, it conforms to ISO 15552 mounting interface dimensions, allowing interchange with standard large-bore accessories like LB foot, FA flange, or TC trunnion brackets.
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