Airtac SGC Standard Cylinder SGC125X125
The AirTAC Airtac SGC Standard Cylinder SGC125X125 is a genuine double acting ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø125mm bore and 125mm 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
- Stroke125 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2.0
- CushionAdjustable, 40 mm
About the Airtac SGC Standard Cylinder SGC125X125
Generating 6136 N of push force at 0.5 MPa, this large-bore ISO 15552 tie-rod cylinder is built for heavy-duty automation. The four steel tie rods clamp the aluminum barrel to the covers for high structural rigidity, while the two-way piston seal maintains an internal oil reservoir for long mechanical life. Because it shares the standardized ISO 15552 mounting interface, it drops directly into existing large-bore fixtures without custom bracketry.
This double-acting single-rod unit features a 125 mm stroke, a 32 mm hard-chrome piston rod, and a G1/2 air port. For practical sizing, 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. Note that this specific SKU lacks the -S magnet, so it cannot host CMSG, DMSG, or EMSG position switches.
Airtac SGC Standard Cylinder SGC125X125 Technical Specifications
| Model | Airtac SGC Standard Cylinder SGC125X125 |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø125 mm |
| Stroke | 125 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 SGC125X125
| SGC | ISO 15552 tie-rod cylinder (double-acting type). |
|---|---|
| 125 | Bore size in mm (125 / 160 / 200 / 250). |
| ×125 | 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 SGC125X125 Is Used
Stamping Press Ejection
Provides the 6136 N push force needed to knock heavy stamped metal panels out of a progressive die on an automotive line.
Pallet Diverting Arm
Acts as a heavy-duty diverter on a roller conveyor, using its 125 mm stroke to push loaded pallets onto a secondary packaging spur.
Guideway Shifter
Indexes heavy skate rails or tooling bases laterally between machining cells, taking advantage of the rigid tie-rod construction.
Is the Airtac SGC Standard Cylinder SGC125X125 the Right Cylinder?
When sizing this 125 mm bore, consider stepping up to the 160 mm bore if you need substantially more thrust—it jumps to 10053 N at 0.5 MPa. As the smallest bore in the SGC family, there is no smaller standard option, so if 6136 N is excessive, you would look outside the SGC range. For this 125 mm stroke, side-load risks are minimal, but always ensure rigid mounting using LB foot, FA flange, or TC trunnion options.
Remember that a standard double-acting cylinder drifts when air is removed or a valve is centered; the adjustable 40 mm air cushions only decelerate the piston near the end of travel and do not act as a locking brake. To suspend a vertical load safely, install an external pilot-operated check valve or a dedicated rod lock.
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 SGC125X125 FAQ
This 125 mm bore cylinder features a G1/2 air port and delivers 6136 N push / 5734 N pull at 0.5 MPa, 8590 N push / 8028 N pull at 0.7 MPa, with a theoretical maximum of 1251 kgf at 1.0 MPa.
No, this specific SKU does not include the -S magnet option, meaning it cannot support CMSG, DMSG, or EMSG switches. You would need to specify an SGC125X125-S variant to enable magnetic position sensing.
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