Airtac SGC Standard Cylinder SGC125X250H
The AirTAC Airtac SGC Standard Cylinder SGC125X250H is a genuine double acting ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø125mm bore and 250mm 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
- Stroke250 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 SGC125X250H
Generating 6136 N of push force at 0.5 MPa, this double-acting ISO 15552 tie-rod cylinder handles large-bore automation tasks. 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 service life. Plan for about 3682 N of real work at 0.5 MPa, which safely lifts roughly 313 kg vertically with a 2:1 margin.
Because this SKU carries the H designation, it uses Viton seals to operate in environments up to 150 C instead of the standard -20 to 70 C range. The 125 mm bore specifies a G1/2 port and an M27x2.0 rod thread. Note that this base configuration lacks the -S magnet, meaning it cannot support CMSG, DMSG, or EMSG position switches.
Airtac SGC Standard Cylinder SGC125X250H Technical Specifications
| Model | Airtac SGC Standard Cylinder SGC125X250H |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø125 mm |
| Stroke | 250 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 SGC125X250H
| SGC | ISO 15552 tie-rod cylinder (double-acting type). |
|---|---|
| 125 | Bore size in mm (125 / 160 / 200 / 250). |
| ×250 | 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 SGC125X250H Is Used
Hot Stamp Press Ejection
Ejects dense molded parts from a hot stamping press, utilizing the Viton seal to withstand 150 C ambient radiant heat while pushing with 6136 N.
Heavy Pallet Diversion
Pushes loaded pallets sideways onto a secondary packaging line, safely handling weights up to 313 kg vertically with a 2:1 safety margin.
Industrial Oven Doors
Actuates heavy access doors on industrial curing ovens where standard TPU seals would fail, relying on the 250 mm stroke for full clearance.
Is the Airtac SGC Standard Cylinder SGC125X250H the Right Cylinder?
When sizing this 125 mm bore unit, verify if the 6136 N push at 0.5 MPa provides enough thrust, or if stepping up to the 160 mm bore (10053 N) is necessary for heavier loads, as there is no smaller SGC bore below 125. For holding a suspended load during air loss or valve centering, remember this cylinder will drift; the end-of-stroke air cushion only decelerates the piston and does not act as a brake, so an external rod lock or pilot-operated check valve is required. With the 250 mm stroke, guide the load to prevent rod bending and premature seal wear from side loads. To add sensing, switch to the -S variant for magnetic switch compatibility.
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 SGC125X250H FAQ
This 125 mm bore cylinder provides 6136 N push and 5734 N pull at 0.5 MPa, increasing to 8590 N push and 8028 N pull at 0.7 MPa, with a theoretical maximum of 1251 kgf at 1.0 MPa. It operates at 30-500 mm/s, accepts air filtered to 40 um, and has a proof pressure of 1.5 MPa.
It is dimensionally interchangeable per the ISO 15552 mounting interface, fitting standard large-bore fixtures like LB foot or FA flange. However, this specific SKU lacks the -S magnet, so it cannot accept CMSG, DMSG, or EMSG switches without upgrading to the magnet-equipped variant.
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Covers non-human-caused product damage.
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Large-bore cylinders built to order — confirm lead time.
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