Airtac SGC Standard Cylinder SGC250X630
The AirTAC Airtac SGC Standard Cylinder SGC250X630 is a genuine double acting ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø250mm bore and 630mm 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
- Stroke630 mm
- Port sizeG1
- Acting typeDouble acting
- Rod threadM42×2.0
- CushionAdjustable, 60 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SGC Standard Cylinder SGC250X630
Delivering 24543 N of push force at 0.5 MPa, this double-acting ISO 15552 tie-rod cylinder is built for heavy-duty automation. Four steel tie rods clamp the aluminum barrel to the covers, providing the high rigidity needed to handle large-bore thrust, while a two-way piston seal maintains an internal oil reservoir for long service life. Because this is a Ø250 bore, the front-cover packing and buffer gasket use NBR rather than TPU, with a Viton H option available for 0-150 C high-temperature environments.
Plan for roughly 14726 N of real work at 0.5 MPa, which equates to lifting about 1251 kg vertically with a 2:1 safety margin. The unit features a G1 air port, an M42x2.0 rod thread, and 60 mm adjustable air cushions at both ends to decelerate the payload smoothly. Note that this specific SKU lacks the -S magnet, meaning it cannot host CMSG, DMSG, or EMSG magnetic switches.
Airtac SGC Standard Cylinder SGC250X630 Technical Specifications
| Model | Airtac SGC Standard Cylinder SGC250X630 |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø250 mm |
| Stroke | 630 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 SGC250X630
| SGC | ISO 15552 tie-rod cylinder (double-acting type). |
|---|---|
| 250 | Bore size in mm (125 / 160 / 200 / 250). |
| ×630 | 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 SGC250X630 Is Used
Heavy Metal Stamping
Drives large press dies over the 630 mm stroke, utilizing the 24543 N push force at 0.5 MPa to form thick steel plates.
Palletizer Elevation
Lifts heavy unit loads vertically, moving approximately 1251 kg payloads with a 2:1 safety margin while relying on external guides to prevent rod bending.
Injection Mold Clamping
Secures large industrial molds using the 34360 N thrust available at 0.7 MPa, taking advantage of the rigid four-tie-rod construction.
Is the Airtac SGC Standard Cylinder SGC250X630 the Right Cylinder?
When sizing this 250 mm bore, stepping down to the Ø200 model reduces the 0.5 MPa push force to 15708 N, whereas this SGC250X630 provides 24543 N and represents the largest standard option in the SGC family. Because the 630 mm stroke exceeds 500 mm, you must account for rod-bending and side loads by incorporating external guide rails to support the payload and prevent premature seal wear.
Remember that a standard double-acting cylinder drifts when air is lost or the valve is centered, as the air cushions only decelerate the piston near the stroke ends rather than locking it. To suspend a load safely during an emergency stop, install an external rod lock or a pilot-operated check valve. Additionally, if your application requires position sensing, select the -S magnet variant instead of this non-magnetic SKU.
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 SGC250X630 FAQ
The SGC250X630 delivers 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. It uses a G1 air port, a Ø50 mm piston rod, and features 60 mm adjustable air cushions at both ends.
No, this specific SKU lacks the -S magnet, so it cannot support CMSG, DMSG, or EMSG switches. Furthermore, the cylinder will drift if air is lost; the air cushions only decelerate the piston near the stroke end and do not act as a brake. For vertical load holding, you must install an external rod lock or pilot-operated check valve.
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