Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X30-20S
The AirTAC Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X30-20S is a genuine double acting, adjustable stroke ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø250mm bore and 30mm 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
- Stroke30 mm
- Port sizeG1
- Acting typeDouble acting, adjustable stroke
- Rod threadM42×2.0
- CushionAdjustable, 60 mm
About the Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X30-20S
Generating massive thrust with 24543 N push and 23562 N pull at 0.5 MPa, this large-bore ISO 15552 tie-rod cylinder handles heavy-duty positioning. The four steel tie rods clamp the aluminum barrel securely to the covers, while the G1 air port supplies the volume needed for the 250 mm bore. It is a double-acting, single-rod actuator with an integrated piston magnet for CMSG, DMSG, or EMSG switches.
The external adjuster allows you to shorten the extend stroke on-site by up to 20 mm, meaning the usable extend range is 10 to 30 mm out of the 30 mm nominal maximum. This lets you fine-tune the end position without remounting the cylinder. It delivers a safe working load of about 14726 N, which is roughly 1251 kg lifted vertically with a 2:1 margin. Because this is a 250 mm bore, TPU seals are unavailable; standard NBR packing handles temperatures from -20 to +70 C, with a Viton H option for 0 to 150 C.
Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X30-20S Technical Specifications
| Model | Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X30-20S |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø250 mm |
| Stroke | 30 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 SGCJ250X30-20S
| SGCJ | ISO 15552 tie-rod cylinder (adjustable-stroke type). |
|---|---|
| 250 | Bore size in mm (125 / 160 / 200 / 250). |
| ×30 | 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 SGCJ250X30-20S Is Used
Press End-Stop Tuning
Dial in the exact 10 to 30 mm clamping reach on a heavy stamping press using the external adjuster without disassembling the tooling.
Heavy Payload Ejection
Push 1251 kg payloads off a conveyor line vertically or horizontally, relying on 24543 N of thrust at 0.5 MPa.
Precision Spot Forming
Apply 5006 kgf of maximum theoretical force for short-stroke metal forming, tweaking the 20 mm adjustment window to control material deformation.
Is the Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X30-20S the Right Cylinder?
This 250 mm bore sits at the top of the SGCJ range, delivering 34360 N push at 0.7 MPa; if your application only needs 21991 N, step down to the 200 mm bore to save air volume. The adjustable stroke is ideal when you need to share a spare cylinder across slightly different stroke variants or dial in a precise end position on the machine. You can mount it via FA, LB, TC, FTC, TCM1, or TCM2 brackets. The -S suffix means the piston magnet is present for electronic or reed sensors. For any stroke length over 500 mm, always use a guide rail to prevent side-load damage to the rod seal.
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 SGCJ250X30-20S FAQ
This 250 mm bore cylinder features a G1 air port, a 50 mm rod, and M42x2.0 rod thread. 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 -20 code means an external stop screw lets you shorten the extend stroke on-site by up to 20 mm. The nominal 30 mm stroke is the maximum, giving a usable extend range of 10 to 30 mm, while the retract end remains fixed. This mechanism sets the end position and does not hold the load; for load holding on air loss, you need an external rod lock or pilot-operated check valve.
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