Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X300-50S
The AirTAC Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X300-50S is a genuine double acting, adjustable stroke ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø125mm bore and 300mm stroke, G1/2 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.
- BoreØ125 mm
- Stroke300 mm
- Port sizeG1/2
- Acting typeDouble acting, adjustable stroke
- Rod threadM27×2.0
- CushionAdjustable, 40 mm
About the Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X300-50S
Delivering 6136 N of push force at 0.5 MPa, this large-bore ISO 15552 tie-rod cylinder integrates a 50 mm external adjuster to shorten the extend stroke on-site. Four steel tie rods clamp the aluminum barrel to the covers, and the G1/2 port matches the 125 mm bore standard. The built-in magnet supports CMSG, DMSG, and EMSG sensors for precise position feedback.
The nominal 300 mm stroke represents the maximum travel, letting you fine-tune the end position down to 250 mm without swapping the cylinder. It handles about 3682 N of real work safely, which translates to lifting roughly 313 kg vertically with a 2:1 margin. A two-way piston seal ensures durability, and the Viton H option extends operation up to 150 C.
Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X300-50S Technical Specifications
| Model | Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X300-50S |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø125 mm |
| Stroke | 300 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | G1/2 |
| Rod thread | M27×2.0 |
| 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, 40 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 (Ø125mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 6136 N | 5734 N |
| 0.7 MPa | 8590 N | — |
| Max (@1.0 MPa) | 1251 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X300-50S
| SGCJ | ISO 15552 tie-rod cylinder (adjustable-stroke type). |
|---|---|
| 125 | Bore size in mm (125 / 160 / 200 / 250). |
| ×300 | 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 SGCJ125~160 Adjustable Cylinder SGCJ125X300-50S Is Used
Press Fit Tuning
Dial in the exact 250 to 300 mm extend position on-site for seating bearings without remounting the entire actuator.
Transfer Diverter
Adjust the extend stop to accommodate different package sizes on a shared line, ensuring precise routing.
Pallet Stop Gate
Fine-tune the gate extension height to handle varying pallet loads while maintaining a reliable physical stop.
Is the Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X300-50S the Right Cylinder?
When sizing this unit, the neighboring 160 mm bore jumps to 10053 N push at 0.5 MPa, while smaller ISO 15552 units offer less power. The 125 mm bore sits at the low edge of this large-bore family, making it ideal for medium-heavy tasks. The adjustable stroke feature is perfect for sharing a spare cylinder across stroke variants or finalizing end positions during machine commissioning. Mounting options include FA, LB, TC, FTC, TCM1, and TCM2. The -S suffix confirms the piston magnet is present for CMSG/DMSG/EMSG switches. For any stroke over 500 mm, always use a guide rail to prevent side-load 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 SGCJ125~160 Adjustable Cylinder SGCJ125X300-50S FAQ
It pushes 6136 N and pulls 5734 N at 0.5 MPa. At 0.7 MPa, push is 8590 N and pull is 8028 N. The theoretical maximum force is 1251 kgf at 1.0 MPa.
An external stop screw shortens the extend stroke by up to 50 mm on-site, giving a usable extend range of 250 to 300 mm. The nominal 300 mm stroke is the maximum, and the retract end remains fixed.
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