Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X400-50
The AirTAC Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X400-50 is a genuine double acting, adjustable stroke ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø250mm bore and 400mm 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
- Stroke400 mm
- Port sizeG1
- Acting typeDouble acting, adjustable stroke
- Rod threadM42×2.0
- CushionAdjustable, 60 mm
About the Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X400-50
Delivering 24543 N of push force at 0.5 MPa, this large-bore ISO 15552 tie-rod cylinder handles heavy tasks via its G1 air port. Four steel tie rods clamp the aluminium barrel to the covers for high structural rigidity. The external adjuster lets you shorten the extend stroke on-site by up to 50 mm, meaning the usable extend range is 350-400 mm while the retract end stays fixed. This allows fine-tuning of the end position without changing the whole cylinder.
Because TPU is not offered on this 250 mm bore, the standard seals are NBR, with a Viton H option for 0-150 C high-heat environments. It yields a safe working load of about 14726 N, which translates to lifting roughly 1251 kg vertically with a 2:1 margin. Note this specific SKU lacks a magnet, so it cannot take CMSG/DMSG/EMSG sensors.
Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X400-50 Technical Specifications
| Model | Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X400-50 |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø250 mm |
| Stroke | 400 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 SGCJ250X400-50
| SGCJ | ISO 15552 tie-rod cylinder (adjustable-stroke type). |
|---|---|
| 250 | Bore size in mm (125 / 160 / 200 / 250). |
| ×400 | 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 SGCJ250X400-50 Is Used
Heavy Pallet Forming
Apply 24543 N of push at 0.5 MPa to compact large pallet loads, using the 50 mm extend window to fine-tune the final press height on-site.
Large Gate Actuation
Drive heavy industrial gates with a 350-400 mm extend stroke, relying on the 60 mm adjustable air cushions to decelerate the massive load smoothly.
Press Ejection Setup
Eject formed metal parts from a press, adjusting the extend end position by up to 50 mm without disassembling the cylinder to match new die tolerances.
Is the Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X400-50 the Right Cylinder?
When sizing this unit, the 160 mm bore provides 10053 N push at 0.5 MPa for lighter setups, while the 250 mm bore sits at the top with 24543 N. The 50 mm adjustable window is ideal for sharing a spare across stroke variants or dialing in exact end positions on-site. Mounting options include FA, LB, TC, FTC, TCM1 and TCM2 brackets. For any stroke at or over 500 mm, use a guide rail to prevent side-load damage. To add CMSG/DMSG/EMSG sensors you must specify the -S magnet option, as this base unit cannot accept them.
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 SGCJ250X400-50 FAQ
At 0.5 MPa it provides 24543 N push and 23562 N pull. At 0.7 MPa it yields 34360 N push and 32986 N pull. The theoretical maximum force is 5006 kgf at 1.0 MPa.
The nominal 400 mm stroke is the maximum. The external adjuster shortens the extend stroke on-site by up to 50 mm, giving a usable extend range of 350-400 mm. The retract end remains fixed, and this stop is for positioning, not load holding.
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