Airtac SGC Standard Cylinder SGC250X80S
The AirTAC Airtac SGC Standard Cylinder SGC250X80S is a genuine double acting ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø250mm bore and 80mm 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
- Stroke80 mm
- Port sizeG1
- Acting typeDouble acting
- Rod threadM42×2.0
- CushionAdjustable, 60 mm
About the Airtac SGC Standard Cylinder SGC250X80S
Delivering massive thrust for heavy industrial tasks, the AirTAC SGC250X80S is a double-acting ISO 15552 tie-rod cylinder built around a 250 mm bore and an 80 mm stroke. It pushes with 24543 N and pulls with 23562 N at 0.5 MPa, scaling up to a theoretical maximum of 5006 kgf at 1.0 MPa. Four steel tie rods clamp the aluminum barrel to the covers for extreme structural rigidity, while the two-way piston seal maintains an internal oil reservoir to maximize service life. Because this is a 250 mm bore, TPU seals are not offered; instead, the front-cover packing and buffer gasket use NBR (with a Viton H option for 0-150 C high-temperature environments). The G1 air port handles the high volume required for rapid cycling.
For practical sizing, 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 built-in magnet (indicated by the -S suffix) enables direct mounting of CMSG, DMSG, or EMSG position switches along the barrel. Dimensional interchangeability per the ISO 15552 mounting interface means this unit drops seamlessly into existing large-bore fixture arrays without custom bracket fabrication.
Airtac SGC Standard Cylinder SGC250X80S Technical Specifications
| Model | Airtac SGC Standard Cylinder SGC250X80S |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø250 mm |
| Stroke | 80 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 SGC250X80S
| SGC | ISO 15552 tie-rod cylinder (double-acting type). |
|---|---|
| 250 | Bore size in mm (125 / 160 / 200 / 250). |
| ×80 | 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 SGC250X80S Is Used
Heavy Stamp Press Feeder
Utilizes the 24543 N push force at 0.5 MPa to drive thick-gauge metal blanks into a hydraulic stamp press, with the 80 mm stroke ensuring rapid high-force insertion cycles.
Injection Mold Clamping
Secures large industrial injection molding halves using the 5006 kgf theoretical maximum force, relying on the rigid four-tie-rod construction to prevent deflection under extreme clamping pressure.
Pallet Stopper Gate
Acts as a heavy-duty automated barrier on conveyor lines, halting fully loaded pallets weighing up to 1251 kg vertically, with the -S magnet triggering CMSG sensors for traffic control.
Is the Airtac SGC Standard Cylinder SGC250X80S the Right Cylinder?
When sizing this unit, verify whether the 250 mm bore is strictly necessary. The next size down, the 200 mm bore, provides 15708 N of push force at 0.5 MPa, which may suffice for lighter loads and reduce air consumption. As the 250 mm bore is the largest in the SGC family, there is no larger standard option; if 5006 kgf of theoretical maximum force is insufficient, you must split the load across multiple cylinders. The 80 mm stroke is relatively short, so side-load risks from rod bending are minimal, but always ensure the load is guided externally to prevent premature seal wear.
Because this SKU includes the -S magnet, it is fully compatible with CMSG, DMSG, and EMSG sensors for end-of-stroke confirmation. Remember that the adjustable 60 mm air cushions at both ends only decelerate the piston near the stroke limits; they do not function as a braking mechanism. If the application requires the load to remain suspended during a loss of air pressure or valve centering, you must integrate an external rod lock or a pilot-operated check valve, as the piston will drift otherwise.
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 SGC250X80S FAQ
The SGC250X80S features a G1 air port and an M42x2.0 rod thread. At 0.5 MPa it provides 24543 N of push force and 23562 N of pull force. At 0.7 MPa, the push force is 34360 N and the pull force is 32986 N. The theoretical maximum force at 1.0 MPa is 5006 kgf.
TPU seals are not available for the 250 mm bore; the front-cover packing and buffer gasket are NBR, with a Viton H high-temperature option available. The cylinder is dimensionally interchangeable per the ISO 15552 mounting interface, allowing it to drop into standard large-bore fixtures and accessories without modification.
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