Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X400-30S
The AirTAC Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X400-30S is a genuine double acting, adjustable stroke ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø250mm bore and 400mm 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
- Stroke400 mm
- Port sizeG1
- Acting typeDouble acting, adjustable stroke
- Rod threadM42×2.0
- CushionAdjustable, 60 mm
About the Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X400-30S
Delivering massive thrust for heavy industry, this large-bore ISO 15552 tie-rod cylinder pushes with 24543 N at 0.5 MPa. The four steel tie rods clamp the aluminum barrel to the covers, yielding high structural rigidity, while the genuine ISO 15552 mounting interface guarantees dimensional interchangeability for your existing large-bore fixtures. It uses a G1 air port and an M42x2.0 rod thread.
The external adjuster lets you shorten the extend stroke on-site by up to 30 mm, meaning usable extension is 370-400 mm without changing the unit itself. This is ideal for fine-tuning end positions across shared spares. It includes a piston magnet for CMSG/DMSG/EMSG sensors. Because this is a 250 mm bore, TPU seals are unavailable; standard NBR packing handles -20 to +70 C, with a Viton H option for 0-150 C. It safely handles about 14726 N of real work, lifting roughly 1251 kg vertically with a 2:1 margin.
Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X400-30S Technical Specifications
| Model | Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X400-30S |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø250 mm |
| Stroke | 400 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 SGCJ250X400-30S
| SGCJ | ISO 15552 tie-rod cylinder (adjustable-stroke type). |
|---|---|
| 250 | Bore size in mm (125 / 160 / 200 / 250). |
| ×400 | 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 SGCJ250X400-30S Is Used
Heavy Stamp Press Feed
Pushes large blanks into a hydraulic press, using the 30 mm extend adjuster to dial in the exact feed length for different die sets on the fly.
Pallet Dispenser Indexing
Lifts stacked pallets in an automated line, relying on the massive 1251 kg vertical lift capacity and the G1 port for rapid high-volume air flow.
Large Mold Clamp Release
Ejects heavy injection molds from platens, utilizing the 60 mm adjustable air cushions to safely brake the 23562 N pull force at full retract.
Is the Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X400-30S the Right Cylinder?
At the top of the SGCJ range, this 250 mm bore outputs 24543 N push at 0.5 MPa; if your load is lighter, the 200 mm bore provides 15708 N. The -30 mm adjustable window is highly useful when you need to synchronize end positions across multiple fixtures or dial in a precise motion without machining new spacers. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2. The -S suffix means a magnet is already fitted for position sensing. For any stroke length over 500 mm, always use external guide rails to prevent side-load damage. Remember the air cushion only decelerates; use an external rod lock or pilot-operated check valve to hold a load securely.
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 SGCJ250X400-30S FAQ
This 250 mm bore cylinder features a G1 air port and an M42x2.0 rod thread. It generates 24543 N push and 23562 N pull at 0.5 MPa, increasing to 34360 N push and 32986 N pull at 0.7 MPa. The theoretical maximum force is 5006 kgf at 1.0 MPa.
The nominal 400 mm stroke is the maximum extension. An external stop screw lets you shorten the extend stroke on-site by up to 30 mm, giving a usable range of 370-400 mm for fine-tuning the end position. The retract end remains fixed, and this stop is not a load lock.
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