Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X400-50S
The AirTAC Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X400-50S 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 SGCJ250X400-50S
Delivering 24543 N of thrust at 0.5 MPa, this large-bore ISO 15552 tie-rod cylinder integrates a magnetic piston for position sensing. The four steel tie rods clamp the aluminium barrel securely to the covers, while the G1 air port feeds the Ø50 mm rod to generate up to 5006 kgf of maximum force at 1.0 MPa. Because it is dimensionally interchangeable per the ISO 15552 mounting interface, it drops directly into existing large-bore fixtures without custom brackets.
The -50 code defines an external adjuster that lets you shorten the extend stroke on site by up to 50 mm, meaning the usable forward travel spans 350 to 400 mm while the retract end remains fixed. This allows precise end-position tuning without physically changing the cylinder. Factoring in a safe working load of roughly 14726 N, it can vertically lift about 1251 kg with a 2:1 safety margin. Note that because this is a Ø250 bore, TPU seals are not available; standard NBR packings handle the -20 to +70 C range, though a Viton H option extends heat resistance to 150 C.
Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X400-50S Technical Specifications
| Model | Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X400-50S |
|---|---|
| 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 SGCJ250X400-50S
| 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 SGCJ250X400-50S Is Used
Heavy Pallet Forming
Drives large format palletizers, using the 50 mm extend adjustment to dial in the exact stacking height for varied load dimensions without swapping actuators.
Press Demolding
Ejects heavy industrial molds from hydraulic presses, relying on the 23562 N pull force at 0.5 MPa to break the part free before retracting.
Logistics Diversion
Actuates heavy-duty lane diverters on high-throughput sorting lines, using the magnetic piston and CMSG sensors to confirm full extend and retract positions.
Is the Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X400-50S the Right Cylinder?
When sizing this unit, the neighboring 200 mm bore provides 15708 N of push at 0.5 MPa, whereas this 250 mm bore jumps to 24543 N, representing the top standard capacity in the SGCJ family. The adjustable stroke is particularly useful when you want a shared spare across multiple stroke variants or need to fine-tune the extend endpoint on-site. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2. The -S suffix confirms a built-in magnet compatible with CMSG, DMSG, and EMSG sensors. For any stroke length of 400 mm or more, always use an external guide rail to prevent side-load damage to the rod and front cover.
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 SGCJ250X400-50S FAQ
At 0.5 MPa it provides 24543 N push and 23562 N pull. At 0.7 MPa it delivers 34360 N push and 32986 N pull. The theoretical maximum force is 5006 kgf at 1.0 MPa. This 250 mm bore cylinder uses a G1 air port and a Ø50 mm piston rod with an M42x2.0 thread.
The nominal stroke is 400 mm, which is the maximum forward travel. The external adjuster lets you shorten the extend stroke on-site by up to 50 mm, yielding a usable range of 350 to 400 mm. The retract end is fixed. This mechanism only sets the end position; it does not lock the load. If you need to hold a load vertically without live air, you must add an external rod lock or pilot-operated check valve, as the air cushions only decelerate the piston near the stroke ends.
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