Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X450-75S
The AirTAC Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X450-75S is a genuine double acting, adjustable stroke ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø250mm bore and 450mm 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
- Stroke450 mm
- Port sizeG1
- Acting typeDouble acting, adjustable stroke
- Rod threadM42×2.0
- CushionAdjustable, 60 mm
About the Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X450-75S
Delivering massive thrust for heavy industry, this large-bore ISO 15552 tie-rod cylinder pushes with 24543 N at 0.5 MPa. Four steel rods clamp the aluminum barrel to the covers, and the G1 port feeds a 50 mm rod with an M42x2.0 thread. The built-in magnet supports CMSG, DMSG and EMSG sensors for precise position detection.
The external adjuster lets you shorten the extend stroke on site by up to 75 mm, giving a usable range of 375 to 450 mm without changing the hardware. This on-site tuning is ideal for shared spares across stroke variants. It handles a safe working load of about 14726 N, lifting roughly 1251 kg vertically with a 2:1 margin. Note that TPU seals are unavailable for this 250 mm bore, though Viton H raises the temperature limit to 150 C.
Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X450-75S Technical Specifications
| Model | Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X450-75S |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø250 mm |
| Stroke | 450 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 SGCJ250X450-75S
| SGCJ | ISO 15552 tie-rod cylinder (adjustable-stroke type). |
|---|---|
| 250 | Bore size in mm (125 / 160 / 200 / 250). |
| ×450 | 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 SGCJ250X450-75S Is Used
Heavy Press Clamping
Exerts 34360 N at 0.7 MPa to hold large steel plates, using the 75 mm extend adjuster to dial in the exact clamp position on the press bed.
Pallet Stopper Gate
Acts as a heavy-duty stop in high-mass conveyor lines, fine-tuning the 450 mm extend stroke on site to match varying pallet depths.
Stamping Press Feed
Drives large stamping dies with a 60 mm adjustable air cushion absorbing kinetic energy, while the -S magnet confirms the retracted position.
Is the Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X450-75S the Right Cylinder?
This 250 mm bore sits at the top of the SGCJ range, offering 24543 N push at 0.5 MPa compared to 15708 N on the 200 mm bore. If your fixture only needs standard strokes, the fixed-stroke SGC saves cost, but the SGCJ adjustable window lets one spare cover multiple end-position variants. Mounting options include FA, LB, TC, FTC, TCM1 and TCM2 brackets. The included -S magnet works with CMSG, DMSG and EMSG switches. For any stroke over 500 mm, use a guide rail to prevent rod side-loading and premature 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 SGCJ250X450-75S FAQ
At 0.5 MPa it pushes 24543 N and pulls 23562 N. At 0.7 MPa it pushes 34360 N and pulls 32986 N. The theoretical maximum force is 5006 kgf at 1.0 MPa.
An external stop screw shortens the extend stroke on site by up to 75 mm, giving a usable extend range of 375 to 450 mm. The nominal 450 mm is the maximum, and the retract end remains fixed. This mechanism sets the end position and is not a load lock.
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