Airtac SGC Standard Cylinder SGC125X20TC
The AirTAC Airtac SGC Standard Cylinder SGC125X20TC 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 SGC125X20TC
Delivering 6136 N of push force at 0.5 MPa, this double-acting large-bore cylinder is built on a genuine ISO 15552 tie-rod platform. Four steel tie rods clamp the aluminum barrel to the covers for high rigidity, while the two-way piston seal maintains an internal oil reservoir for long service life. The standardized ISO 15552 mounting interface means it drops directly into existing large-bore fixtures and accessories.
With a 20 mm stroke, plan for about 3682 N of real work at 0.5 MPa, which equates to lifting roughly 313 kg vertically with a 2:1 safety margin. The bore dictates a G1/2 port and an M27x2.0 rod thread. Note that this specific SKU lacks the -S magnet, so it cannot host CMSG, DMSG or EMSG sensors; order an -S variant if position detection is required.
Airtac SGC Standard Cylinder SGC125X20TC Technical Specifications
| Model | Airtac SGC Standard Cylinder SGC125X20TC |
|---|---|
| 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 SGC125X20TC
| 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 SGC125X20TC Is Used
Press Tonnage Backup
Provides 6136 N of rapid clamping force at 0.5 MPa to hold heavy steel stampings in place during secondary machining operations.
Pallet Indexing Gate
Acts as a high-force 20 mm stroke stop gate for heavy industrial pallets, absorbing kinetic energy using the adjustable air cushion.
Injection Mold Ejector
Delivers a short, powerful 8590 N push at 0.7 MPa to break loose stubborn injection-molded composite parts from the tool cavity.
Is the Airtac SGC Standard Cylinder SGC125X20TC the Right Cylinder?
When sizing this actuator, the 125 mm bore is the entry point of the SGC large-frame family. If your application demands less force, you must step outside the SGC series, as there is no smaller bore offered. If you need significantly more thrust, the 160 mm bore provides 10053 N at 0.5 MPa. Because this is a short 20 mm stroke, side-load bending stresses on the 32 mm rod are minimal, but ensure the front cover pivot or TC trunnion mounting handles the direct impact loads.
The adjustable 40 mm air cushions at both ends only decelerate the piston near the stroke limits; they do not function as a brake. If the air supply drops or the valve is centered, the piston will drift, so fit an external rod lock or a pilot-operated check valve for suspended 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 SGC125X20TC FAQ
The 125 mm bore generates a push force of 6136 N and a pull force of 5734 N at 0.5 MPa. At 0.7 MPa, push is 8590 N and pull is 8028 N. The theoretical maximum force is 1251 kgf at 1.0 MPa. This model uses a G1/2 air port and features a 32 mm piston rod with an M27x2.0 thread.
No, this specific SKU does not include the -S magnet option, so it cannot host CMSG, DMSG, or EMSG switches. You would need to order the -S variant for magnetic sensing. Mechanically, it uses the ISO 15552 mounting interface, allowing it to interchange with standard TC trunnion, foot, or flange 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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