Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X400-75S
The AirTAC Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X400-75S 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 SGCJ250X400-75S
Delivering massive thrust for heavy industry, this large-bore ISO 15552 tie-rod cylinder pushes with 24543 N and pulls with 23562 N at 0.5 MPa. Four steel tie rods clamp the aluminum barrel to the covers, while the G1 air port feeds the 50 mm piston rod. Because it carries the -S suffix, a built-in piston magnet is ready for CMSG, DMSG, or EMSG position switches.
The -75 code means an external adjuster can shorten the extend stroke on-site by up to 75 mm, giving a usable range of 325 to 400 mm without changing the mount. It handles a safe working load of about 14726 N, which is roughly 1251 kg lifted vertically with a 2:1 margin. Note that TPU seals are not offered on this 250 mm bore; NBR is standard, with a Viton H option for 0 to 150 C heat.
Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X400-75S Technical Specifications
| Model | Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X400-75S |
|---|---|
| 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 SGCJ250X400-75S
| 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 SGCJ250X400-75S Is Used
Heavy Pallet Forming
Drives large platens to compress pallets, using the 75 mm external adjuster to dial in the exact final height on-site for different load tolerances.
Large Gate Actuation
Shifts heavy diverter gates in bulk material lines, relying on the 24543 N thrust at 0.5 MPa to move substantial mass reliably.
Press Fit Tuning
Performs heavy press-fit duties where the retract end is fixed but the extend stop must be micro-adjusted to avoid over-travel on delicate components.
Is the Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X400-75S the Right Cylinder?
When sizing this unit against its neighbors, the 200 mm bore provides 15708 N of push at 0.5 MPa, whereas this 250 mm bore jumps to 24543 N, sitting at the top of the SGCJ range. The adjustable stroke is ideal for fine-tuning the extend end position on-site, allowing you to standardize on one 400 mm spare across multiple machines with slightly shorter reach requirements. Mounting options include FA, LB, TC, FTC, TCM1, and TCM2. Even at 400 mm of stroke, you must guide the load externally to prevent side-loading damage to the rod seals.
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 SGCJ250X400-75S FAQ
At 0.5 MPa it pushes 24543 N and pulls 23562 N. At 0.7 MPa it pushes 34360 N and pulls 32986 N. The theoretical max is 5006 kgf at 1.0 MPa. It uses a G1 port, a 50 mm rod with an M42x2.0 thread, and 60 mm adjustable air cushions.
The nominal 400 mm stroke is the maximum. An external stop screw lets you shorten the extend stroke by up to 75 mm on-site, yielding a usable extend range of 325 to 400 mm. The retract end remains fixed. This stop only sets the end position; it does not lock the load.
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