Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X350-40
The AirTAC Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X350-40 is a genuine double acting, adjustable stroke ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø250mm bore and 350mm 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
- Stroke350 mm
- Port sizeG1
- Acting typeDouble acting, adjustable stroke
- Rod threadM42×2.0
- CushionAdjustable, 60 mm
About the Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X350-40
Generating 24543 N of push force at 0.5 MPa, this large-bore ISO 15552 tie-rod cylinder handles heavy-duty positioning. The four steel tie rods clamp the aluminium barrel to the covers for structural rigidity, and the G1 pneumatic port manages the high air volume required for a 250 mm bore. It delivers a theoretical maximum output of 5006 kgf at 1.0 MPa.
The external adjuster allows you to shorten the extend stroke on-site by up to 40 mm, giving a usable range of 310 to 350 mm without changing the cylinder itself. This on-site end-position tuning is ideal for shared spares across stroke variants. Note that TPU seals are not available on this 250 mm bore; it uses NBR packing, with a Viton H option for 0 to 150 C environments. This plain SKU lacks a magnet and cannot take a sensor, while the -S variant supports CMSG/DMSG/EMSG switches.
Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X350-40 Technical Specifications
| Model | Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X350-40 |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø250 mm |
| Stroke | 350 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 SGCJ250X350-40
| SGCJ | ISO 15552 tie-rod cylinder (adjustable-stroke type). |
|---|---|
| 250 | Bore size in mm (125 / 160 / 200 / 250). |
| ×350 | 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 SGCJ250X350-40 Is Used
Heavy Pallet Forming
Drives large platens to compress pallets, using the 40 mm adjuster to fine-tune the final stacking height precisely on-site.
Large Gate Actuation
Shifts heavy industrial diverter gates where the 310 to 350 mm extend range needs quick mechanical adjustment without changing mounts.
Press Ejection
Pushes finished parts out of large presses, relying on 23562 N pull at 0.5 MPa to retract the heavy tooling quickly.
Is the Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X350-40 the Right Cylinder?
This 250 mm bore sits at the top of the SGCJ range, delivering 24543 N push at 0.5 MPa. Stepping down, the 200 mm bore provides 15708 N push, making this model the right choice when you need roughly 8800 N more extension force at the same pressure. The external 40 mm adjuster is invaluable when you need fine end-position tuning across multiple machines using a shared spare. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2. Because the 350 mm stroke is relatively short for this large bore, side-load stress is minimal, but you should still guide the rod end to prevent binding. Remember this non-magnetic SKU cannot accept position sensors.
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 SGCJ250X350-40 FAQ
At 0.5 MPa it provides 24543 N push and 23562 N pull. At 0.7 MPa the output rises to 34360 N push and 32986 N pull. 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 350 mm stroke is the maximum extend length. The external adjuster lets you shorten the extend stroke by up to 40 mm on-site, yielding a usable range of 310 to 350 mm. The retract end remains fixed. This stop only sets the end position; it does not lock the load, so use an external rod lock or pilot-operated check valve for holding.
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