Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X350-30
The AirTAC Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X350-30 is a genuine double acting, adjustable stroke ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø125mm bore and 350mm 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
- Stroke350 mm
- Port sizeG1/2
- Acting typeDouble acting, adjustable stroke
- Rod threadM27×2.0
- CushionAdjustable, 40 mm
About the Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X350-30
Delivering 6136 N of thrust at 0.5 MPa, this large-bore ISO 15552 tie-rod cylinder integrates an external adjuster to fine-tune the extend end position without changing your mounting. The -30 mm window lets you shorten the usable extend stroke from the 350 mm maximum down to 320 mm on site, while the retract end remains fixed. Four steel tie rods clamp the aluminum barrel to the covers for high structural rigidity, and the G1/2 port feeds the chamber efficiently.
With a 6136 N extend force, it handles a safe working load of about 3682 N, which translates to lifting roughly 313 kg vertically with a 2:1 safety margin. The two-way piston seal minimizes leakage, and the adjustable air cushions absorb impact at both ends. Note that this specific SKU lacks a magnet, so it cannot accept CMSG, DMSG, or EMSG sensors without switching to the -S variant.
Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X350-30 Technical Specifications
| Model | Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X350-30 |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø125 mm |
| Stroke | 350 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 SGCJ125X350-30
| SGCJ | ISO 15552 tie-rod cylinder (adjustable-stroke type). |
|---|---|
| 125 | Bore size in mm (125 / 160 / 200 / 250). |
| ×350 | 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 SGCJ125X350-30 Is Used
Press Fit Tuning
Dial in the exact 320 to 350 mm extend position for pressing bearings, using the external adjuster to compensate for material thickness variations without remounting the actuator.
Divertor Gate Stroke Trim
Fine-tune the divertor arm reach on a packaging line by shortening the extend stroke on site by up to 30 mm to match new package dimensions perfectly.
Pallet Stop Adjustment
Set the precise stop point for varying pallet sizes by adjusting the extend window, leveraging the 6136 N push force to halt heavy loads reliably.
Is the Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X350-30 the Right Cylinder?
When sizing this 125 mm bore, stepping down is not an option as it is the smallest in the SGCJ range, but stepping up to the 160 mm bore increases thrust to 10053 N at 0.5 MPa if you need more power. The adjustable stroke is ideal for sharing a single spare cylinder across multiple stroke variants or dialing in the exact end position during machine commissioning. Mounting options include FA, LB, TC, FTC, TCM1, and TCM2 brackets. Because the stroke is 350 mm, ensure you provide adequate side-load guidance to prevent rod bearing wear. Remember that a plain cylinder drifts on air loss; use an external rod lock or pilot-operated check valve if the load must be held.
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 SGCJ125X350-30 FAQ
This 125 mm bore cylinder uses a G1/2 port and delivers 6136 N push and 5734 N pull at 0.5 MPa. 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 nominal 350 mm stroke is the maximum extend length. An external stop screw lets you shorten the extend stroke by up to 30 mm on site, giving a usable range of 320 to 350 mm. The retract end is fixed, and this stop only sets the end position, it does not lock the load.
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