Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X900-20S
The AirTAC Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X900-20S is a genuine double acting, adjustable stroke ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø250mm bore and 900mm 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
- Stroke900 mm
- Port sizeG1
- Acting typeDouble acting, adjustable stroke
- Rod threadM42×2.0
- CushionAdjustable, 60 mm
About the Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X900-20S
Delivering 24543 N of push force at 0.5 MPa, this large-bore ISO 15552 tie-rod cylinder integrates an external adjuster that fine-tunes the extend end position on-site without changing your mount. The -20 mm window lets you shorten the usable extend stroke from the 900 mm maximum down to 880 mm, while the retract end remains fixed. Four steel tie rods clamp the aluminum barrel to the covers for high structural rigidity, and the G1 pneumatic port handles the massive air volume required for this bore size.
With a safe working load around 14726 N, it can vertically lift approximately 1251 kg with a 2:1 safety margin. Because this is a 250 mm bore, TPU seals are not available; instead, it uses NBR packings with a Viton H high-temperature option rated for 0 to 150 C. The -S suffix indicates a built-in piston magnet for CMSG, DMSG, or EMSG switches. Note that the air cushions only decelerate the piston near the ends; an external rod lock or pilot-operated check valve is required to hold a load securely on air loss.
Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X900-20S Technical Specifications
| Model | Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X900-20S |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø250 mm |
| Stroke | 900 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 SGCJ250X900-20S
| SGCJ | ISO 15552 tie-rod cylinder (adjustable-stroke type). |
|---|---|
| 250 | Bore size in mm (125 / 160 / 200 / 250). |
| ×900 | 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 SGCJ250X900-20S Is Used
Heavy Pallet Lifting
Raises loaded pallets weighing up to 1251 kg vertically, using the 20 mm adjuster to set the precise lift height for different dock levels.
Press Ejection Setup
Ejects heavy formed parts from large presses, using the on-site stroke adjustment to compensate for varying die thicknesses without remounting.
Bulk Material Diversion
Swings heavy diverter gates on high-capacity aggregate conveyors, relying on the 60 mm cushions to safely stop the massive 250 mm piston.
Is the Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X900-20S the Right Cylinder?
When sizing this unit, stepping down to a 200 mm bore drops the 0.5 MPa push force to 15708 N, while this 250 mm bore provides 24543 N. The adjustable stroke feature is highly useful when you need to share a spare cylinder across slightly different machine variants or dial in the exact end position after installation. Standard SGCJ mountings include FA, LB, TC, FTC, TCM1, and TCM2. The -S magnet supports CMSG/DMSG/EMSG sensors for position feedback. Because the 900 mm stroke is long, always provide external rod-end support and guide mechanisms to prevent side-load bending 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 SGCJ250X900-20S FAQ
This 250 mm bore cylinder features a G1 air port and a 50 mm piston rod. 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 external stop screw lets you shorten the extend stroke by up to 20 mm on-site. The usable extend range is 880 to 900 mm, with 900 mm being the maximum nominal stroke. The retract end is fixed, and this stop mechanism only sets the end position; it does not lock the load.
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Covers non-human-caused product damage.
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