Airtac SGC Standard Cylinder SGC250X70
The AirTAC Airtac SGC Standard Cylinder SGC250X70 is a genuine double acting ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø250mm bore and 70mm 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
- Stroke70 mm
- Port sizeG1
- Acting typeDouble acting
- Rod threadM42×2.0
- CushionAdjustable, 60 mm
About the Airtac SGC Standard Cylinder SGC250X70
Delivering massive thrust for heavy-duty automation, this double-acting ISO 15552 tie-rod cylinder features a 250 mm bore and a 70 mm stroke. It generates 24543 N of push force and 23562 N of pull force at 0.5 MPa, scaling up to a theoretical maximum of 5006 kgf at 1.0 MPa. Four steel tie rods clamp the aluminum barrel to the covers for extreme structural rigidity, while the two-way piston seal maintains an internal oil reservoir to ensure long component life. Plan for about 14726 N of real work at 0.5 MPa, which safely lifts roughly 1251 kg vertically with a 2:1 margin.
Because this is a 250 mm bore variant, it uses a G1 air port and an M42x2.0 rod-end thread, and it relies on NBR front-cover packing rather than the TPU seals found on smaller bores. A Viton H high-temperature seal option extends the operating range from -20 to +70 C up to 0-150 C for demanding thermal environments. Note that this specific SKU lacks a magnet, so it cannot support CMSG, DMSG, or EMSG magnetic switches without upgrading to the -S variant.
Airtac SGC Standard Cylinder SGC250X70 Technical Specifications
| Model | Airtac SGC Standard Cylinder SGC250X70 |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø250 mm |
| Stroke | 70 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 SGC250X70
| SGC | ISO 15552 tie-rod cylinder (double-acting type). |
|---|---|
| 250 | Bore size in mm (125 / 160 / 200 / 250). |
| ×70 | 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 SGC250X70 Is Used
Heavy Stamping Presses
Drives large upper dies in automated metalforming lines, utilizing the 34360 N push force at 0.7 MPa to stamp thick plate steel reliably.
Injection Mold Clamping
Secures heavy industrial mold halves during plastic injection cycles, taking advantage of the rigid four-tie-rod construction to resist deflection.
Pallet Dispenser Gates
Actuates robust automated guided vehicle docking gates that must push loaded pallets weighing up to 1251 kg vertically in high-throughput logistics hubs.
Is the Airtac SGC Standard Cylinder SGC250X70 the Right Cylinder?
When sizing this 250 mm bore model, recognize there is no larger standard SGC option; if 24543 N of push at 0.5 MPa is excessive, step down to the 200 mm bore which provides 15708 N. The 70 mm stroke is highly compact, keeping side-load risks minimal, but any application lifting heavy masses vertically requires an external rod lock or pilot-operated check valve. A plain cylinder drifts when air is lost or the valve is centered, as the adjustable 60 mm air cushions only decelerate the piston near stroke end rather than holding the load. Ensure your mounting choice—whether LB foot, FA flange, or TC trunnion—matches the ISO 15552 interface dimensions for seamless integration.
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 SGC250X70 FAQ
The SGC250X70 delivers 24543 N push and 23562 N pull at 0.5 MPa, and 34360 N push and 32986 N pull at 0.7 MPa. The theoretical maximum force is 5006 kgf at 1.0 MPa. It features a G1 air port, an M42x2.0 rod thread, and a 60 mm adjustable air cushion at both ends.
No, this specific SKU does not include a magnet, so it cannot support CMSG, DMSG, or EMSG magnetic switches. You must select the SGC250X70-S variant with the built-in magnet for magnetic sensing capabilities.
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