Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X75-30S
The AirTAC Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X75-30S is a genuine double acting, adjustable stroke ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø250mm bore and 75mm 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
- Stroke75 mm
- Port sizeG1
- Acting typeDouble acting, adjustable stroke
- Rod threadM42×2.0
- CushionAdjustable, 60 mm
About the Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X75-30S
Delivering massive thrust, this 250 mm bore tie-rod actuator pushes with 24543 N at 0.5 MPa. The external stop screw lets you shorten the extend stroke on-site by up to 30 mm, giving a usable 45 to 75 mm window while the retract end stays fixed. This on-site tuning means you can fine-tune the end position without physically changing the cylinder.
Built to the ISO 15552 mounting interface, it drops directly into existing large-bore fixtures. Four steel tie rods clamp the aluminum barrel for high rigidity, and the built-in magnet supports CMSG, DMSG, or EMSG sensors. Because it handles about 14726 N of safe working load, it can vertically lift roughly 1251 kg with a 2:1 margin. It uses a G1 air port, and note that TPU seals are unavailable for this bore size, utilizing NBR instead with a Viton H high-temp option up to 150 C.
Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X75-30S Technical Specifications
| Model | Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X75-30S |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø250 mm |
| Stroke | 75 mm |
| Acting type | Double acting, adjustable stroke |
| 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 SGCJ200-250 Adjustable Cylinder SGCJ250X75-30S
| SGCJ | ISO 15552 tie-rod cylinder (adjustable-stroke type). |
|---|---|
| 250 | Bore size in mm (125 / 160 / 200 / 250). |
| ×75 | 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 SGCJ200-250 Adjustable Cylinder SGCJ250X75-30S Is Used
Heavy Pallet Positioning
Fine-tune the exact stopping point of a heavy pallet lift on-site, using the 30 mm adjuster to set the precise 45 to 75 mm raise height without swapping actuators.
Press End-Stop Trimming
Dial in the final clamping position of a large pressing operation, making minute 1 mm adjustments to the extend stroke until the perfect crush depth is achieved.
Shared Spare Actuator
Keep one cylinder in maintenance stock and adjust the extend window on the factory floor to immediately replace units with slightly different nominal stroke requirements.
Is the Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X75-30S the Right Cylinder?
Size this 250 mm bore against the 200 mm option, which provides 15708 N push at 0.5 MPa, or step up if you need the absolute maximum 5006 kgf at 1.0 MPa. The adjustable stroke is perfect for sharing a single spare across multiple stroke variants, letting you dial in the exact 45 to 75 mm extend end-position on the fly. Mounting options include FA, LB, TC, FTC, TCM1, and TCM2. The -S suffix confirms the piston magnet is present for electronic or reed switches. Even at this short 75 mm stroke, always ensure adequate side-load guidance to prevent premature rod seal wear.
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 SGCJ200-250 Adjustable Cylinder SGCJ250X75-30S FAQ
At 0.5 MPa it pushes with 24543 N and pulls with 23562 N. At 0.7 MPa the push is 34360 N and the pull is 32986 N. The theoretical maximum force is 5006 kgf at 1.0 MPa. It features a 50 mm rod, M42x2.0 rod thread, and a G1 air port.
The nominal 75 mm extend stroke is the maximum. An external stop screw lets you shorten the extend stroke on-site by up to 30 mm, yielding a usable extend range of 45 to 75 mm. The retract end is fixed. This stop only sets the end position; it is not a load lock.
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