Airtac SGC Standard Cylinder SGC125X900H
The AirTAC Airtac SGC Standard Cylinder SGC125X900H is a genuine double acting ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø125mm bore and 900mm 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
- Stroke900 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 SGC125X900H
Delivering 6136 N of push force at 0.5 MPa, this double-acting large-bore cylinder handles heavy duty cycles in extreme heat. The H designation specifies a Viton seal, extending the operating temperature range up to 150 C for demanding environments. Four steel tie rods clamp the aluminum barrel to the covers, ensuring high structural rigidity under large-bore thrust, while a two-way piston seal maintains an internal oil reservoir for long service life.
Because it is dimensionally interchangeable per the ISO 15552 mounting interface, it drops directly into existing large-bore fixtures. 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 G1/2 port supplies air to the 32 mm rod, and since this specific SKU lacks the -S magnet, it cannot accept CMSG, DMSG, or EMSG position switches.
Airtac SGC Standard Cylinder SGC125X900H Technical Specifications
| Model | Airtac SGC Standard Cylinder SGC125X900H |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø125 mm |
| Stroke | 900 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 SGC125X900H
| SGC | ISO 15552 tie-rod cylinder (double-acting type). |
|---|---|
| 125 | Bore size in mm (125 / 160 / 200 / 250). |
| ×900 | 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 SGC125X900H Is Used
Hot Foundry Ejectors
Drives mold ejection pins near furnaces, utilizing the Viton H seal to withstand 150 C ambient heat while providing 6136 N of push force at 0.5 MPa.
Long-Reach Press Feed
Feeds heavy steel stock into a forming press over a 900 mm span, relying on external guides to prevent rod bending during the extended cycle.
High-Temp Pallet Reject
Pushes defective pallets off a high-speed conveyor in a hot drying tunnel, taking advantage of the 125 mm bore's 5734 N pull force at 0.5 MPa.
Is the Airtac SGC Standard Cylinder SGC125X900H the Right Cylinder?
When sizing this 125 mm bore unit, compare your actual load against its 6136 N push and 5734 N pull ratings at 0.5 MPa. If your application requires less force, there is no smaller bore in the SGC family, so you must look outside the series; if you need more power, stepping up to the 160 mm bore yields 10053 N of push force. Remember that a plain cylinder does not hold its load when air is lost or the valve is centered, as the piston will drift and the air cushion only decelerates the stroke end. For suspended loads, install an external rod lock or a pilot-operated check valve.
With a 900 mm stroke, large-bore side loads can induce rod bending, so external guide rails are strongly recommended to prevent premature seal wear. This H variant utilizes Viton seals for 0-150 C high-temperature duty. To add magnetic sensing capabilities via CMSG, DMSG, or EMSG switches, you must select the -S magnet variant instead of this SKU.
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 SGC125X900H FAQ
This 125 mm bore cylinder features a G1/2 air port and a 32 mm rod. It generates 6136 N push and 5734 N pull at 0.5 MPa, 8590 N push and 8028 N pull at 0.7 MPa, with a theoretical maximum force of 1251 kgf at 1.0 MPa.
No, this specific SKU lacks the -S magnet and cannot accept CMSG, DMSG, or EMSG switches. The H seal option provides Viton material for 0-150 C heat, but you must order the -S variant to enable magnetic position sensing.
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