Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X75-50S
The AirTAC Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X75-50S 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 SGCJ250X75-50S
Delivering 24543 N of thrust at 0.5 MPa, this large-bore ISO 15552 tie-rod cylinder integrates a 50 mm external adjuster to shorten the extend stroke on site. The nominal 75 mm stroke represents the maximum extension, allowing you to fine-tune the end position down to 25 mm without changing the hardware. Four steel tie rods clamp the aluminum barrel to the covers for structural rigidity, and the G1 port handles the high air volume required for this bore size.
Because TPU is not available on a 250 mm bore, the standard seals are NBR, with a Viton H option for 0-150 C high-temperature environments. The -S suffix indicates a built-in piston magnet for CMSG, DMSG, and EMSG switches. In practical terms, it handles a safe working load of roughly 14726 N, which translates to lifting about 1251 kg vertically with a 2:1 safety margin.
Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X75-50S Technical Specifications
| Model | Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X75-50S |
|---|---|
| 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 SGCJ250X75-50S
| 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 SGCJ250X75-50S Is Used
Precision Press Fit
Dial in the exact 25-75 mm extend position for seating heavy bearings without re-mounting the cylinder.
Heavy Stamping Stop
Use the external adjuster to set a hard mechanical end-stop for stamping thick plate materials.
Modular Tooling
Swap a single cylinder between fixtures requiring different extend lengths by turning the adjuster screw.
Is the Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X75-50S the Right Cylinder?
As the largest bore in the SGCJ range, this 250 mm model sits at the top edge, providing 24543 N push and 23562 N pull at 0.5 MPa, far exceeding the 15708 N push of the 200 mm bore. The adjustable stroke is particularly useful when you need to share a spare cylinder across multiple stroke variants or precisely set a pressing depth. Mounting options include FA, LB, TC, FTC, TCM1, and TCM2 brackets, all dimensionally interchangeable per the ISO 15552 mounting interface. Even at 75 mm, always verify your guide alignment to prevent side-load wear on the 50 mm rod.
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 SGCJ250X75-50S FAQ
This 250 mm bore cylinder features a G1 air port and generates 24543 N push and 23562 N pull at 0.5 MPa. At 0.7 MPa, it outputs 34360 N push and 32986 N pull. The theoretical maximum force is 5006 kgf at 1.0 MPa.
The nominal 75 mm stroke is the maximum extend length. The external adjuster lets you shorten the extend stroke by up to 50 mm on site, giving a usable extend range of 25-75 mm. The retract end remains fixed, and the adjuster sets the end position but does not lock the load.
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