Airtac SGC Standard Cylinder SGC250X650S
The AirTAC Airtac SGC Standard Cylinder SGC250X650S is a genuine double acting ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø250mm bore and 650mm 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
- Stroke650 mm
- Port sizeG1
- Acting typeDouble acting
- Rod threadM42×2.0
- CushionAdjustable, 60 mm
About the Airtac SGC Standard Cylinder SGC250X650S
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 without flexing. The two-way piston seal retains an oil reservoir for continuous lubrication and long service life. Equipped with a G1 air port and a 50 mm piston rod, it operates at speeds of 30-500 mm/s.
Because this SKU includes the -S magnet, it directly supports CMSG, DMSG, and EMSG position switches for end-of-stroke detection. As a Ø250 bore model, it uses NBR front-cover packing and buffer gaskets rather than TPU, with a Viton H option available for 0-150 C high-temperature environments. Plan for about 14726 N of real work at 0.5 MPa, which means it lifts roughly 1251 kg vertically with a 2:1 safety margin.
Airtac SGC Standard Cylinder SGC250X650S Technical Specifications
| Model | Airtac SGC Standard Cylinder SGC250X650S |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø250 mm |
| Stroke | 650 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 SGC250X650S
| SGC | ISO 15552 tie-rod cylinder (double-acting type). |
|---|---|
| 250 | Bore size in mm (125 / 160 / 200 / 250). |
| ×650 | 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 SGC250X650S Is Used
Heavy Press Stamping
Forms thick metal plates in an automotive line, utilizing the 34360 N push force at 0.7 MPa to seat dies securely.
Palletizer Head Actuator
Raises and lowers heavy unit loads over 650 mm of travel, relying on the -S magnet to trigger load release sensors.
Injection Mold Clamping
Holds large industrial molds shut against high pressure, using the rigid four tie-rod build to resist deflection.
Is the Airtac SGC Standard Cylinder SGC250X650S the Right Cylinder?
When sizing this 250 mm bore actuator, compare it against the next size down: the 200 mm bore provides 15708 N push at 0.5 MPa, whereas this 250 mm model reaches 24543 N. Since 250 mm is the largest bore in the SGC family, moving beyond 5006 kgf theoretical maximum force at 1.0 MPa requires a custom or multi-cylinder solution. The 650 mm stroke demands external guide support to prevent rod bending and side-load damage under such high thrust.
The adjustable 60 mm air cushions at both ends only decelerate the piston near the stroke limits; they do not act as a brake. If the application must hold a vertical load when air pressure drops or the valve centers, add an external rod lock or a pilot-operated check valve to prevent drift. The built-in -S magnet allows seamless mounting of CMSG, DMSG, or EMSG sensors without extra hardware.
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 SGC250X650S FAQ
This model has a G1 air port and an M42x2.0 rod thread. It generates 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, so it drops directly into existing large-bore fixtures. You can use standard LB foot, FA flange, or TC trunnion accessories, and the -S magnet enables CMSG, DMSG, or EMSG sensors.
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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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