Airtac SGC Standard Cylinder SGC250X85S
The AirTAC Airtac SGC Standard Cylinder SGC250X85S is a genuine double acting ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø250mm bore and 85mm stroke, G1 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.
- BoreØ250 mm
- Stroke85 mm
- Port sizeG1
- Acting typeDouble acting
- Rod threadM42×2.0
- CushionAdjustable, 60 mm
About the Airtac SGC Standard Cylinder SGC250X85S
Delivering massive thrust for heavy-duty automation, this double-acting ISO 15552 tie-rod cylinder features a 250 mm bore and an 85 mm stroke. It generates 24543 N of push force and 23562 N of pull force at 0.5 MPa, scaling up to 34360 N push at 0.7 MPa. Four steel tie rods clamp the aluminum barrel to the covers for high rigidity under large-bore loads, while the two-way piston seal maintains an internal oil reservoir for long service life. Because this is a -S variant, it includes a built-in piston magnet for position sensing.
For practical sizing, plan for about 14726 N of real work at 0.5 MPa, which safely lifts roughly 1251 kg vertically with a 2:1 margin. The G1 air port handles the high volume required for this size class. Note that TPU seals are not offered on the 250 mm bore; the front-cover packing and buffer gasket are NBR, with a Viton H high-temperature option available for 0-150 C environments.
Airtac SGC Standard Cylinder SGC250X85S Technical Specifications
| Model | Airtac SGC Standard Cylinder SGC250X85S |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø250 mm |
| Stroke | 85 mm |
| Acting type | Double acting |
| Port size | G1 |
| Rod thread | M42×2.0 |
| 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, 60 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 (Ø250mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 24544 N | 23562 N |
| 0.7 MPa | 34361 N | — |
| Max (@1.0 MPa) | 5006 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 SGC250X85S
| SGC | ISO 15552 tie-rod cylinder (double-acting type). |
|---|---|
| 250 | Bore size in mm (125 / 160 / 200 / 250). |
| ×85 | 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 SGC250X85S Is Used
Automotive Press Loading
Handles heavy stamping blanks into large mechanical presses, utilizing the 24543 N push force at 0.5 MPa to shuttle steel sheets reliably.
Injection Mold Clamping
Secures large industrial injection molding halves, using the massive 34360 N thrust at 0.7 MPa to maintain high-pressure mold integrity.
Palletizer Head Actuation
Drives the main lift and grip mechanism on heavy-duty robotic palletizers, moving dense pallet loads with precise 85 mm strokes.
Is the Airtac SGC Standard Cylinder SGC250X85S the Right Cylinder?
As the largest bore in the SGC family, the 250 mm size has no larger standard option; if 24543 N of push at 0.5 MPa is excessive, step down to the 200 mm bore, which provides 15708 N push. The 85 mm stroke is well below the 500 mm threshold, so rod-bending side loads are minimal, but ensure the load is still axially aligned to prevent premature seal wear. A plain cylinder drifts when air is lost or the valve is centered, as the adjustable 60 mm air cushion only decelerates the piston near stroke end rather than locking it; specify an external rod lock or pilot-operated check valve if you must hold a suspended load. The -S magnet supports CMSG, DMSG, and EMSG switches, and mounting options include LB foot, FA/FB flange, CA/CB clevis, and TC trunnion.
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 SGC250X85S FAQ
At 0.5 MPa, this 250 mm bore cylinder provides 24543 N of push force and 23562 N of pull force. At 0.7 MPa, push increases to 34360 N and pull to 32986 N, with a theoretical maximum of 5006 kgf at 1.0 MPa. The air port size is G1, determined by the bore diameter.
Yes, it is dimensionally interchangeable per the ISO 15552 mounting interface, dropping into standard large-bore fixtures. The -S suffix indicates a built-in magnet for CMSG, DMSG, or EMSG position switches. The tie-rod build clamps the barrel to the covers for maximum structural rigidity.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Made to Order
Large-bore cylinders built to order — confirm lead time.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC SGC Cylinders
Request a Quote for Airtac SGC Standard Cylinder SGC250X85S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.