Airtac SGC Standard Cylinder SGC250X630S
The AirTAC Airtac SGC Standard Cylinder SGC250X630S 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 SGC250X630S
Delivering 24543 N of push force at 0.5 MPa, this double-acting large-bore cylinder handles heavy-duty automation with ease. It features a robust tie-rod construction where four steel rods clamp the aluminum barrel to the covers, while the two-way piston seal maintains an internal oil reservoir for extended operational life. Because this is a 250 mm bore unit, the front-cover packing and buffer gasket utilize NBR material rather than TPU, with a Viton H option available for 0-150 C high-temperature environments.
The built-in -S piston magnet allows direct mounting of CMSG, DMSG, or EMSG switches for position sensing, and the G1 air port accommodates high flow demands. For practical sizing, 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.
Airtac SGC Standard Cylinder SGC250X630S Technical Specifications
| Model | Airtac SGC Standard Cylinder SGC250X630S |
|---|---|
| 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 SGC250X630S
| 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 SGC250X630S Is Used
Heavy Press Stamping
Provides the 24543 N push force at 0.5 MPa needed to actuate large mechanical press dies and form thick steel plates.
Palletizer Elevation
Lifts heavy unit loads vertically, utilizing the 630 mm stroke to raise palletized goods to conveyor transfer height.
Injection Mold Clamping
Secures large industrial injection molding halves, relying on the rigid four-rod tie construction to withstand high clamping forces.
Is the Airtac SGC Standard Cylinder SGC250X630S the Right Cylinder?
When sizing this 630 mm stroke unit, compare it against the adjacent SGC bores: the 200 mm class provides 15708 N push at 0.5 MPa, while the 250 mm class shown here delivers 24543 N. If even more force is required, note that 250 mm is the largest standard SGC bore available. Because the stroke exceeds 500 mm, external guide support is strongly recommended to prevent rod bending and manage side loads during extension. Remember that the adjustable 60 mm air cushions only decelerate the piston near the end of travel; they do not function as a brake. If the application requires the load to be held in place during air loss or valve centering, an external rod lock or pilot-operated check valve must be fitted. The -S magnet on this SKU enables CMSG, DMSG, and EMSG sensors for precise end-position feedback.
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 SGC250X630S FAQ
This 250 mm bore cylinder features a G1 air port and an M42x2.0 rod thread. It 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 force of 5006 kgf at 1.0 MPa.
Yes, it is dimensionally interchangeable per the ISO 15552 mounting interface, allowing it to drop into existing large-bore fixtures using LB foot, FA flange, or TC trunnion styles. The included -S magnet supports CMSG, DMSG, and EMSG reed or electronic switches.
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Genuine AirTAC parts produced by AirTAC factory.
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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Most inquiries answered within 7-8 hours.
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