Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X125-30
The AirTAC Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X125-30 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 SGCJ125X125-30
Delivering 6136 N of push force at 0.5 MPa, this large-bore ISO 15552 tie-rod cylinder integrates an external adjuster that shortens the extend stroke on-site by up to 30 mm. The nominal 125 mm stroke remains the maximum travel, yielding a usable 95 to 125 mm extend window while the retract end stays fixed. It handles a safe working load of about 3682 N, which translates to lifting roughly 313 kg vertically with a 2:1 margin.
Four steel tie rods clamp the aluminum barrel to the covers for structural rigidity, and the unit is dimensionally interchangeable per the ISO 15552 mounting interface. The bore dictates a G1/2 port, M27x2.0 rod thread, and 40 mm adjustable air cushions at both ends. Standard TPU seals operate from -20 to +70 C, though a Viton H option extends this to 0-150 C. Note this specific SKU lacks the -S magnet and cannot accept CMSG, DMSG, or EMSG sensors.
Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X125-30 Technical Specifications
| Model | Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X125-30 |
|---|---|
| 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 SGCJ125X125-30
| 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 SGCJ125X125-30 Is Used
Press Fit Tuning
Micro-adjust the 30 mm extend window on-site to set precise bottoming pressure for pressing bearings without recalculating fixed mechanical stops.
Transfer Diverter
Dial in the exact extend position to deflect packages of varying sizes on a sorting line, using the 6136 N thrust to push heavy cartons reliably.
Pallet Stop Gate
Adjust the extend stroke limit on the fly to accommodate different pallet depths while utilizing the robust tie-rod construction for high-impact stopping.
Is the Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X125-30 the Right Cylinder?
When sizing this 125 mm bore, stepping down is not an option as it is the smallest in the SGCJ family, but stepping up to the 160 mm bore increases the 0.5 MPa push force to 10053 N. The 30 mm adjustable window is ideal for fine-tuning end positions on-site without physically swapping cylinders, allowing a shared spare across stroke variants. Mounting choices include Basic, FA, LB, TC, FTC, TCM1, and TCM2 brackets. Because the standard 125 mm stroke is under the 500 mm threshold, side-load guide requirements are minimal, but standard alignment rules still apply. Remember that a plain cylinder drifts without live air; the cushion only decelerates, so specify an external rod lock or pilot-operated check valve for held loads.
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 SGCJ125X125-30 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. This 125 mm bore cylinder uses a G1/2 air port.
The -30 code indicates an external adjuster that allows you to shorten the extend stroke by up to 30 mm on-site. The nominal 125 mm stroke is the maximum, so the usable extend range is 95 to 125 mm. The retract end remains fixed, and this adjustment sets the end position rather than acting as a load lock.
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