Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X80-75
The AirTAC Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X80-75 is a genuine double acting, adjustable stroke ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø250mm bore and 80mm 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
- Stroke80 mm
- Port sizeG1
- Acting typeDouble acting, adjustable stroke
- Rod threadM42×2.0
- CushionAdjustable, 60 mm
About the Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X80-75
Delivering 24543 N of push force at 0.5 MPa, this large-bore ISO 15552 tie-rod cylinder handles heavy-duty positioning with ease. Four steel tie rods clamp the aluminum barrel to the covers for high structural rigidity, and the G1 air port matches the 250 mm bore standard. It provides a safe working load of about 14726 N, which translates to lifting roughly 1251 kg vertically with a 2:1 margin.
The -75 code defines an external adjuster window that shortens the extend stroke on-site by up to 75 mm. The nominal 80 mm stroke is the maximum, yielding a usable extend range of 5 to 80 mm, while the retract end remains fixed. You can fine-tune the end position without changing the cylinder itself. Note that TPU seals are not available on this 250 mm bore; it uses NBR seals, with a Viton H option for 0 to 150 C environments.
Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X80-75 Technical Specifications
| Model | Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X80-75 |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø250 mm |
| Stroke | 80 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 SGCJ250X80-75
| SGCJ | ISO 15552 tie-rod cylinder (adjustable-stroke type). |
|---|---|
| 250 | Bore size in mm (125 / 160 / 200 / 250). |
| ×80 | 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 SGCJ250X80-75 Is Used
Heavy Press Clamping
Apply 24543 N of clamping force at 0.5 MPa, using the external adjuster to set the exact 5 to 80 mm crush depth on varying workpieces.
High-Flow Valve Actuation
Drive large process valves with a 60 mm adjustable air cushion at each end, fine-tuning the extend end-point without mechanical shims.
Stamping Positioner
Secure heavy stamping dies using the M42x2.0 rod thread, adjusting the extend stroke down by 75 mm on-site to accommodate different material thicknesses.
Is the Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X80-75 the Right Cylinder?
When sizing this 250 mm bore unit, stepping down to a 200 mm bore drops the 0.5 MPa push force to 15708 N, while this model maxes out the range at 24543 N. The adjustable stroke is ideal for sharing a spare across stroke variants or dialing in end positions on-site. Mounting options include FA, LB, TC, FTC, TCM1, and TCM2 brackets. Because this 80 mm stroke is short, side-load guide concerns are minimal. This specific SKU lacks the -S magnet, so it cannot accept CMSG, DMSG, or EMSG 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 SGCJ250X80-75 FAQ
This 250 mm bore cylinder features a G1 air port and a 50 mm rod. 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 of 5006 kgf at 1.0 MPa.
The -75 indicates an external stop screw that lets you shorten the extend stroke by up to 75 mm on-site. The nominal 80 mm stroke is the maximum, giving a usable extend range of 5 to 80 mm. The retract end is fixed, and this adjuster sets the end position rather than holding the load.
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