Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X75-20S
The AirTAC Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X75-20S is a genuine double acting, adjustable stroke ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø250mm bore and 75mm 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
- Stroke75 mm
- Port sizeG1
- Acting typeDouble acting, adjustable stroke
- Rod threadM42×2.0
- CushionAdjustable, 60 mm
About the Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X75-20S
Delivering massive thrust, this 250 mm bore tie-rod actuator pushes with 24543 N and pulls with 23562 N at 0.5 MPa. It handles a safe working load of roughly 14726 N, which translates to lifting about 1251 kg vertically with a 2:1 margin. The G1 air port feeds the chamber, while the M42x2.0 rod end and 60 mm adjustable cushions manage heavy kinetic energy.
As a genuine ISO 15552 tie-rod cylinder, it drops seamlessly into existing large-bore mounting interfaces via four steel rods clamping the aluminum barrel. The -20 code means an external adjuster can shorten the 75 mm extend stroke on-site down to 55 mm, letting you fine-tune the end position without swapping the cylinder. Because this SKU includes the -S magnet, it supports CMSG, DMSG, and EMSG sensors for position detection. Note that TPU seals are unavailable for this bore, though Viton H raises the operating range to 150 C.
Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X75-20S Technical Specifications
| Model | Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X75-20S |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø250 mm |
| Stroke | 75 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 SGCJ250X75-20S
| SGCJ | ISO 15552 tie-rod cylinder (adjustable-stroke type). |
|---|---|
| 250 | Bore size in mm (125 / 160 / 200 / 250). |
| ×75 | 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 SGCJ250X75-20S Is Used
Heavy Pallet Forming
Apply the 24543 N push force to compact heavy pallets, using the 20 mm adjuster to precisely set the final pressing height without changing the fixture.
Large Valve Actuation
Drive high-torque process valves where the 55 to 75 mm stroke window allows exact closing position tuning on-site, while the G1 port delivers rapid air flow.
Press Fit Station
Seat heavy bearings using the 5006 kgf maximum theoretical force, relying on the 60 mm cushions to decelerate the load smoothly at the end of travel.
Is the Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X75-20S the Right Cylinder?
When sizing this unit, stepping down to a 200 mm bore yields 15708 N of push at 0.5 MPa, whereas this 250 mm bore provides 24543 N at the same pressure, representing the top standard capacity. The 20 mm adjustable window is ideal for sharing a single spare cylinder across multiple stroke variants, as you can tune the extend end-position on the fly. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2. The integrated -S magnet enables CMSG, DMSG, or EMSG electronic and reed switches. Even at 75 mm, always ensure external guide rails support the rod to prevent side-loading damage.
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 SGCJ250X75-20S 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 maximum is 5006 kgf at 1.0 MPa. It uses a G1 air port and a 50 mm rod with an M42x2.0 thread.
The nominal 75 mm extend stroke is the maximum. An external stop screw lets you shorten the usable extend stroke on-site by up to 20 mm, giving a 55 to 75 mm range. The retract end is fixed, and this stop is for position tuning, not load holding.
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