Airtac SGC Standard Cylinder SGC125X20
The AirTAC SGC Standard Cylinder SGC125X20 is a genuine double acting ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø125mm bore and 20mm 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
- Stroke20 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 SGC125X20
Delivering 6136 N of push force at 0.5 MPa, this double-acting large-bore cylinder is built for short-stroke heavy clamping. The SGC125X20 features a 125 mm bore and a 20 mm stroke, utilizing a robust tie-rod construction where four steel rods clamp the aluminum barrel to the covers for high rigidity. It is dimensionally interchangeable per the ISO 15552 mounting interface, dropping easily into standard large-bore fixtures.
Because this SKU lacks the -S suffix, it cannot accept CMSG, DMSG, or EMSG magnetic sensors. The G1/2 port and M27x2.0 rod thread supply ample flow, while the two-way piston seal maintains an internal oil reservoir for long service life.
Airtac SGC Standard Cylinder SGC125X20 Technical Specifications
| Model | Airtac SGC Standard Cylinder SGC125X20 |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø125 mm |
| Stroke | 20 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 SGC125X20
| SGC | ISO 15552 tie-rod cylinder (double-acting type). |
|---|---|
| 125 | Bore size in mm (125 / 160 / 200 / 250). |
| ×20 | 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 SGC125X20 Is Used
Heavy Stamping Press
Provides intense 6136 N clamping thrust in a tight 20 mm stroke for securing thick metal plates during stamping operations.
Injection Molding Ejector
Uses the robust tie-rod build to absorb high shock loads when ejecting dense plastic parts from molds in a confined space.
Riveting Station Clamp
Applies steady 0.5 MPa holding force to lock heavy steel beams in place for automated pneumatic riveting machinery.
Is the Airtac SGC Standard Cylinder SGC125X20 the Right Cylinder?
As the smallest bore in the SGC family, the 125 mm size offers 6136 N push at 0.5 MPa. If your application requires less force, you must step outside the SGC series, but if you need more power, the next size up is the 160 mm bore delivering 10053 N at 0.5 MPa. This 20 mm stroke is ideal for compact pressing, but remember that a plain cylinder drifts when air is lost or a valve is centered; the end cushions only decelerate the piston and do not act as a brake, so add an external rod lock or pilot-operated check valve for held loads.
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 SGC125X20 FAQ
The SGC125X20 delivers 6136 N push and 5734 N pull at 0.5 MPa, and 8590 N push and 8028 N pull at 0.7 MPa. The theoretical maximum force is 1251 kgf at 1.0 MPa. It features a G1/2 air port and a 32 mm piston rod.
No, because this specific model lacks the -S suffix, it does not have a magnet and cannot accept CMSG, DMSG, or EMSG switches. You would need the SGC125X20-S variant for position sensing.
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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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