Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X75-40S
The AirTAC Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X75-40S 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 SGCJ250X75-40S
Delivering massive thrust for heavy industry, this large-bore ISO 15552 tie-rod cylinder pushes with 24543 N and pulls with 23562 N at 0.5 MPa. Four steel tie rods clamp the aluminium barrel to the covers, and the G1 pneumatic port feeds a 50 mm piston rod with an M42x2.0 thread. A built-in piston magnet supports CMSG, DMSG and EMSG position switches.
The -40 code means an external adjuster can shorten the 75 mm extend stroke on-site down to 35 mm, letting you fine-tune the end position without swapping the cylinder. It handles a safe working load of about 14726 N, which translates to lifting roughly 1251 kg vertically with a 2:1 margin. Note that TPU seals are not offered on this 250 mm bore; NBR is standard, with a Viton H option for 0-150 C heat.
Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X75-40S Technical Specifications
| Model | Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X75-40S |
|---|---|
| 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 SGCJ250X75-40S
| 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 SGCJ250X75-40S Is Used
Heavy Pallet Forming
Exerts up to 5006 kgf at 1.0 MPa to compress bulky goods, with the 40 mm adjuster tuning the final press height for different pallet thicknesses.
Large Gate Actuation
Shifts heavy diverter gates using 34360 N at 0.7 MPa, while the external stop screw precisely sets the 35 to 75 mm travel limit without re-plumbing the G1 air lines.
Press Fit Tuning
Inserts large bearings with a 23562 N pull force, using the on-site adjuster to dial in the exact 45 mm insertion depth required for delicate assemblies.
Is the Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X75-40S the Right Cylinder?
This 250 mm bore sits at the top of the SGCJ range, providing 24543 N push at 0.5 MPa compared to 15708 N on the 200 mm bore. If your fixture only requires moderate force, stepping down saves air volume. The external adjuster is ideal for sharing one spare cylinder across multiple stroke variants, as you can dial the extend stop from 35 to 75 mm on the floor. Mounting options include FA, LB, TC, FTC, TCM1 and TCM2 brackets. Because the -S magnet is present, you can fit reed or electronic sensors directly. Even at 75 mm, always guide the rod to prevent side-load 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 SGCJ250X75-40S 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 max is 5006 kgf at 1.0 MPa. It uses a G1 port, a 50 mm rod, an M42x2.0 thread, and 60 mm adjustable air cushions at both ends.
The 75 mm nominal stroke is the maximum extend length. The external -40 mm adjuster lets you shorten the extend stroke on-site down to 35 mm to fine-tune the end position, while the retract end remains fixed. This stop only sets position; it does not hold the load on air loss, so use an external rod lock for vertical holding.
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