Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X800-40
The AirTAC Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X800-40 is a genuine double acting, adjustable stroke ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø250mm bore and 800mm 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
- Stroke800 mm
- Port sizeG1
- Acting typeDouble acting, adjustable stroke
- Rod threadM42×2.0
- CushionAdjustable, 60 mm
About the Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X800-40
Generating massive thrust for heavy industrial tasks, this ISO 15552 tie-rod cylinder delivers 24543 N of push force at 0.5 MPa. The four steel tie rods clamp the aluminum barrel securely to the covers, and the G1 air port feeds the 50 mm piston rod to handle substantial loads. It provides a safe working load of about 14726 N, capable of lifting roughly 1251 kg vertically with a 2:1 margin.
The -40 code defines an external adjuster that shortens the extend stroke on-site by up to 40 mm, yielding a usable range of 760 to 800 mm while the retract end remains fixed. This allows precise end-position tuning without changing the cylinder itself. As a no-S SKU, it cannot take a magnetic switch, though the -S variant supports CMSG/DMSG/EMSG sensors. Note that TPU seals are unavailable for this 250 mm bore, which uses NBR packing with a Viton H option for 0 to 150 C environments.
Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X800-40 Technical Specifications
| Model | Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X800-40 |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø250 mm |
| Stroke | 800 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 SGCJ250X800-40
| SGCJ | ISO 15552 tie-rod cylinder (adjustable-stroke type). |
|---|---|
| 250 | Bore size in mm (125 / 160 / 200 / 250). |
| ×800 | 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 SGCJ250X800-40 Is Used
Heavy Pallet Lifting
Raises loaded pallets in automated distribution hubs, utilizing the 40 mm adjuster to fine-tune the 800 mm extend stroke for varying dock heights.
Press Ejection
Ejects heavy formed parts from large presses, using the 60 mm adjustable air cushions to safely decelerate the massive 5006 kgf moving mass.
Bulk Gate Actuation
Opens large hopper gates in cement plants, relying on the 34360 N push at 0.7 MPa to break loose stubborn material blockages.
Is the Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X800-40 the Right Cylinder?
When sizing this unit against its neighbors, the 200 mm bore yields 15708 N push at 0.5 MPa, while the 250 mm bore provides 24543 N, marking the top edge of this series with a theoretical maximum of 5006 kgf at 1.0 MPa. The adjustable stroke is ideal for sharing a spare cylinder across stroke variants or fine-tuning the end position on-site. Mounting options include FA, LB, TC, FTC, TCM1, and TCM2 brackets. Because this is an 800 mm stroke, external guides are strongly recommended to prevent rod bending and manage side loads. Remember that the air cushion only decelerates the piston; use an external rod lock or pilot-operated check valve to hold a load securely on air loss.
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 SGCJ250X800-40 FAQ
This 250 mm bore cylinder features a G1 air port and an M42x2.0 rod thread. It generates 24543 N push and 23562 N pull at 0.5 MPa, 34360 N push and 32986 N pull at 0.7 MPa, with a theoretical maximum force of 5006 kgf at 1.0 MPa.
The -40 indicates an external stop screw that shortens the extend stroke on-site by up to 40 mm. The usable extend range is 760 to 800 mm, with 800 mm being the maximum nominal stroke and the retract end remaining fixed. This mechanism sets the end position but does not lock the load.
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