Airtac SGC Standard Cylinder SGC250X400
The AirTAC Airtac SGC Standard Cylinder SGC250X400 is a genuine double acting ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø250mm bore and 400mm 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
- Stroke400 mm
- Port sizeG1
- Acting typeDouble acting
- Rod threadM42×2.0
- CushionAdjustable, 60 mm
About the Airtac SGC Standard Cylinder SGC250X400
Delivering 24543 N of push force at 0.5 MPa, the AirTAC SGC250X400 is a heavy-duty double-acting ISO 15552 tie-rod cylinder built for large-scale automation. Four steel tie rods clamp the aluminum barrel to the covers, providing the rigidity needed to handle massive thrust without flexing. Because it uses the standardized ISO 15552 mounting interface, it drops directly into existing large-bore fixtures and shares standard accessory dimensions. Plan for about 14726 N of real work at 0.5 MPa, which equates to lifting roughly 1251 kg vertically with a 2:1 safety margin.
This 250 mm bore unit features a 50 mm piston rod, a G1 air port, and an M42x2.0 rod thread. It uses adjustable air cushions at both ends to decelerate the massive load smoothly over 60 mm. Note that TPU seals are not offered on this bore; the front-cover packing and buffer gasket are NBR, with a Viton H option available for 0-150 C high-temperature environments. Since this SKU lacks the -S magnet, it cannot accept CMSG, DMSG, or EMSG magnetic switches.
Airtac SGC Standard Cylinder SGC250X400 Technical Specifications
| Model | Airtac SGC Standard Cylinder SGC250X400 |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø250 mm |
| Stroke | 400 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 SGC250X400
| SGC | ISO 15552 tie-rod cylinder (double-acting type). |
|---|---|
| 250 | Bore size in mm (125 / 160 / 200 / 250). |
| ×400 | 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 SGC250X400 Is Used
Heavy Stamp Press Ejection
Provides the 24543 N push force required to eject thick steel blanks from large automotive stamping presses.
Palletizer Lift Carriage
Drives the main lift carriage in automated palletizing cells, moving heavy unit loads with a 400 mm stroke.
Injection Mold Separation
Generates massive force to break open large industrial injection molds, utilizing the rigid tie-rod construction.
Is the Airtac SGC Standard Cylinder SGC250X400 the Right Cylinder?
When sizing this model, compare it against the adjacent bores: the 200 mm option gives 15708 N push at 0.5 MPa, while the 250 mm bore provides 24543 N. There is no larger standard SGC bore, so if 34360 N at 0.7 MPa is insufficient, you will need a multi-cylinder setup. Because this 400 mm stroke is below the 500 mm threshold, standard rod bending is less of a concern, but always ensure the load is guided to prevent side loads. Remember that a standard cylinder drifts when air is lost or a valve is centered; the cushion only decelerates the piston near the end of travel and does not act as a brake. For suspended or vertical loads, install an external rod lock or a pilot-operated check valve. If position sensing is required, switch to the -S magnet variant to enable CMSG, DMSG, or EMSG switches.
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 SGC250X400 FAQ
The SGC250X400 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 features a G1 air port, a 50 mm rod, and an M42x2.0 rod thread.
No, this specific SKU does not include a magnet. You must select the -S variant to use CMSG, DMSG, or EMSG magnetic switches. The ISO 15552 mounting interface ensures it shares dimensions with standard large-bore fixtures, and the tie-rod build handles high thrust.
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