Airtac SGC Standard Cylinder SGC125X300S
The AirTAC Airtac SGC Standard Cylinder SGC125X300S is a genuine double acting ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø125mm bore and 300mm stroke, G1/2 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.
- BoreØ125 mm
- Stroke300 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2.0
- CushionAdjustable, 40 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 SGC125X300S
Delivering 6136 N of push force at 0.5 MPa, this double-acting large-bore actuator is built around a genuine ISO 15552 tie-rod format. Four steel tie rods clamp the aluminum barrel to the front and rear covers, providing high structural rigidity while the heterogeneous two-way piston seal maintains an internal oil reservoir for long service life. Because it uses the standardized ISO 15552 mounting interface, it drops directly into existing large-bore fixtures and shares common accessory dimensions.
With a 300 mm stroke and a built-in piston magnet (the -S suffix), this unit supports CMSG, DMSG, and EMSG electronic or reed switches for position sensing. Plan for about 3682 N of real work at 0.5 MPa, which means it can safely lift roughly 313 kg vertically with a 2:1 safety margin. The G1/2 air port and M27x2.0 rod thread match the 125 mm bore standard, and the TPU seal handles temperatures from -20 to +70 C.
Airtac SGC Standard Cylinder SGC125X300S Technical Specifications
| Model | Airtac SGC Standard Cylinder SGC125X300S |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø125 mm |
| Stroke | 300 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| Rod thread | M27×2.0 |
| 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, 40 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 (Ø125mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 6136 N | 5734 N |
| 0.7 MPa | 8590 N | — |
| Max (@1.0 MPa) | 1251 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 SGC125X300S
| SGC | ISO 15552 tie-rod cylinder (double-acting type). |
|---|---|
| 125 | Bore size in mm (125 / 160 / 200 / 250). |
| ×300 | 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 SGC125X300S Is Used
Pallet Diversion
Pushes heavy wooden pallets sideways onto secondary packaging lines using its 6136 N thrust and 300 mm travel.
Material Lift Gate
Actuates a 300 mm lifting gate in distribution hubs, safely moving loads approaching the 313 kg vertical limit.
Press Ejection
Ejects formed metal parts from hydraulic presses, relying on the CMSG sensors to confirm full retraction.
Is the Airtac SGC Standard Cylinder SGC125X300S the Right Cylinder?
When sizing this 125 mm bore actuator, compare your actual load against its 6136 N push and 5734 pull ratings at 0.5 MPa. If your application requires less force, moving down is not an option within the SGC range as this is the smallest available bore; if you need substantially more thrust, the 160 mm bore offers 10053 N at the same pressure. For this 300 mm stroke, ensure your mounting arrangement—whether LB foot, FA flange, or TC trunnion—prevents excessive side loading on the M27x2.0 rod to avoid premature seal wear.
Note that a standard double-acting cylinder does not hold its position if air pressure drops or the valve is centered; the piston will drift. The adjustable 40 mm air cushions at both ends only decelerate the piston near the stroke ends and do not function as a locking brake. If your machine requires absolute load holding on the 300 mm stroke, add an external rod lock or a pilot-operated check valve.
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 SGC125X300S FAQ
This 125 mm bore cylinder features a G1/2 air port and generates 6136 N push / 5734 N pull at 0.5 MPa, and 8590 N push / 8028 N pull at 0.7 MPa. Its theoretical maximum force is 1251 kgf at 1.0 MPa.
Yes, the -S designation means it has a built-in magnet for CMSG, DMSG, or EMSG switches. It also follows the ISO 15552 mounting interface, allowing it to use standard LB, FA, CA, and TC foot, flange, clevis, and trunnion accessories.
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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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Most inquiries answered within 7-8 hours.
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