Airtac SGC Standard Cylinder SGC250X300S
The AirTAC Airtac SGC Standard Cylinder SGC250X300S is a genuine double acting ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø250mm bore and 300mm 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
- Stroke300 mm
- Port sizeG1
- Acting typeDouble acting
- Rod threadM42×2.0
- CushionAdjustable, 60 mm
About the Airtac SGC Standard Cylinder SGC250X300S
Delivering 24543 N of push force at 0.5 MPa, this double-acting ISO 15552 tie-rod cylinder handles the most demanding large-bore tasks. Four steel tie rods clamp the aluminum barrel to the covers for maximum structural rigidity under heavy thrust, while the two-way piston seal maintains an internal oil reservoir for long operational life. Because this is a 250 mm bore, TPU seals are unavailable; instead, it relies on an NBR front-cover packing and buffer gasket, with a Viton H option for 0-150 C high-temperature environments.
The -S suffix equips the piston with a magnet for CMSG, DMSG, or EMSG position switches. With a 24543 N output, plan for about 14726 N of real work at 0.5 MPa, which translates to lifting roughly 1251 kg vertically with a 2:1 safety margin. The G1 air port and 60 mm adjustable air cushions at both ends manage the kinetic energy of this massive 30-500 mm/s moving assembly.
Airtac SGC Standard Cylinder SGC250X300S Technical Specifications
| Model | Airtac SGC Standard Cylinder SGC250X300S |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø250 mm |
| Stroke | 300 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 SGC250X300S
| SGC | ISO 15552 tie-rod cylinder (double-acting type). |
|---|---|
| 250 | Bore size in mm (125 / 160 / 200 / 250). |
| ×300 | 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 SGC250X300S Is Used
Heavy Stamp Pressing
Generates 34360 N of push at 0.7 MPa to form thick-gauge steel plates in automated metalworking lines.
Pallet Lift Gates
Raises industrial scissor lifts, easily handling 1251 kg loads vertically with a safe 2:1 margin at 0.5 MPa.
Injection Mold Clamping
Provides the massive rigid holding power needed to secure large resin injection molds during high-pressure cycles.
Is the Airtac SGC Standard Cylinder SGC250X300S the Right Cylinder?
This 250 mm bore sits at the top of the SGC range; there is no larger standard size, so if 23562 N of pull at 0.5 MPa is insufficient, you would need to step out of the series entirely. Stepping down to the 200 mm bore drops the push force to 15708 N. The 300 mm stroke is well within the 1500 mm maximum, but at this length guiding the load is critical to prevent side-load bending on the 50 mm rod. Remember that the air cushions only decelerate the piston near the end of travel; they do not act as a brake. If the load must be held vertically when air is lost or the valve is centered, add an external rod lock or pilot-operated check valve, as the piston will drift.
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 SGC250X300S FAQ
It features a G1 air port and an M42x2.0 rod thread. The thrust ratings are 24543 N push and 23562 N pull at 0.5 MPa, 34360 N push and 32986 N pull at 0.7 MPa, with a theoretical maximum of 5006 kgf at 1.0 MPa.
Yes, it is dimensionally interchangeable per the ISO 15552 mounting interface, so it drops directly into standard large-bore fixtures. The included -S magnet enables CMSG, DMSG, and EMSG switches for position sensing.
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1-Year Warranty
Covers non-human-caused product damage.
Made to Order
Large-bore cylinders built to order — confirm lead time.
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