Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X125-30S
The AirTAC Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X125-30S is a genuine double acting, adjustable stroke ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø125mm bore and 125mm 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
- Stroke125 mm
- Port sizeG1/2
- Acting typeDouble acting, adjustable stroke
- Rod threadM27×2.0
- CushionAdjustable, 40 mm
About the Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X125-30S
Generating 6136 N of thrust at 0.5 MPa, this Ø125 mm ISO 15552 tie-rod cylinder brings heavy-duty force to applications needing exact end-position control. The four steel tie rods clamp the aluminum barrel securely to the covers, while the G1/2 port delivers the required air volume. Because it carries the standard SGC single-rod force profile, it handles about 3682 N of safe working load, which is roughly 313 kg lifted vertically with a 2:1 margin.
The -30 code defines a 30 mm external adjuster window, letting you shorten the extend stroke on-site from the 125 mm maximum down to 95 mm without changing the physical mount. The retract end remains fixed. This SKU includes a built-in piston magnet (-S) for CMSG, DMSG, or EMSG switches, and the default TPU seals offer long life. For high-heat environments up to 150 C, Viton H seals are available.
Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X125-30S Technical Specifications
| Model | Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X125-30S |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø125 mm |
| Stroke | 125 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 SGCJ125X125-30S
| SGCJ | ISO 15552 tie-rod cylinder (adjustable-stroke type). |
|---|---|
| 125 | Bore size in mm (125 / 160 / 200 / 250). |
| ×125 | 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 SGCJ125X125-30S Is Used
Press Fit Tuning
Use the 30 mm extend adjuster to precisely set the bottoming position for pressing bearings without remachining fixture stops.
Diverter Gate Stroke Trim
Fine-tune the extend reach on a sorting diverter to accommodate varying package widths on the fly.
Pallet Stop Positioning
Adjust the extend stroke on-site to set exact pallet stop locations without needing multiple cylinder lengths.
Is the Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X125-30S the Right Cylinder?
When sizing this model, stepping down is not an option as Ø125 is the smallest large-bore SGCJ tier; stepping up to Ø160 raises the 0.5 MPa push force to 10053 N. The 30 mm adjustable window is highly useful when you want a shared spare across slightly different stroke variants or need to fine-tune the extend end position on the factory floor. SGCJ mounting choices include Basic, FA, LB, TC, FTC, TCM1, and TCM2. The integrated -S magnet supports position sensing. Since the 125 mm stroke is well under the 500 mm threshold, side-load guide requirements are minimal, but always ensure linear motion guidance for optimal seal life.
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 SGCJ125X125-30S FAQ
At 0.5 MPa it provides 6136 N push and 5734 N pull. At 0.7 MPa it provides 8590 N push and 8028 N pull. The theoretical maximum force is 1251 kgf at 1.0 MPa. The air port size is G1/2.
The nominal 125 mm stroke is the maximum. The external adjuster lets you shorten the extend stroke on-site by up to 30 mm, giving a usable extend range of 95 to 125 mm. The retract end is fixed, and this mechanism only sets the end position; it does not lock the load.
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